commit: 9fd97c132540e56fdedd554fa601f0bb905da89a Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> AuthorDate: Sun Jul 21 14:40:03 2019 +0000 Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> CommitDate: Tue Oct 29 13:59:02 2019 +0000 URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=9fd97c13
Linux patch 4.14.134 Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org> 0000_README | 4 + 1133_linux-4.14.134.patch | 3972 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 3976 insertions(+) diff --git a/0000_README b/0000_README index dd56b3e..befc228 100644 --- a/0000_README +++ b/0000_README @@ -575,6 +575,10 @@ Patch: 1132_linux-4.14.133.patch From: https://www.kernel.org Desc: Linux 4.14.133 +Patch: 1133_linux-4.14.134.patch +From: https://www.kernel.org +Desc: Linux 4.14.134 + Patch: 1500_XATTR_USER_PREFIX.patch From: https://bugs.gentoo.org/show_bug.cgi?id=470644 Desc: Support for namespace user.pax.* on tmpfs. diff --git a/1133_linux-4.14.134.patch b/1133_linux-4.14.134.patch new file mode 100644 index 0000000..3ba280f --- /dev/null +++ b/1133_linux-4.14.134.patch @@ -0,0 +1,3972 @@ +diff --git a/Documentation/ABI/testing/sysfs-class-net-qmi b/Documentation/ABI/testing/sysfs-class-net-qmi +index 7122d6264c49..c310db4ccbc2 100644 +--- a/Documentation/ABI/testing/sysfs-class-net-qmi ++++ b/Documentation/ABI/testing/sysfs-class-net-qmi +@@ -29,7 +29,7 @@ Contact: Bjørn Mork <bj...@mork.no> + Description: + Unsigned integer. + +- Write a number ranging from 1 to 127 to add a qmap mux ++ Write a number ranging from 1 to 254 to add a qmap mux + based network device, supported by recent Qualcomm based + modems. + +@@ -46,5 +46,5 @@ Contact: Bjørn Mork <bj...@mork.no> + Description: + Unsigned integer. + +- Write a number ranging from 1 to 127 to delete a previously ++ Write a number ranging from 1 to 254 to delete a previously + created qmap mux based network device. +diff --git a/Documentation/admin-guide/hw-vuln/index.rst b/Documentation/admin-guide/hw-vuln/index.rst +index ffc064c1ec68..49311f3da6f2 100644 +--- a/Documentation/admin-guide/hw-vuln/index.rst ++++ b/Documentation/admin-guide/hw-vuln/index.rst +@@ -9,5 +9,6 @@ are configurable at compile, boot or run time. + .. toctree:: + :maxdepth: 1 + ++ spectre + l1tf + mds +diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst +new file mode 100644 +index 000000000000..25f3b2532198 +--- /dev/null ++++ b/Documentation/admin-guide/hw-vuln/spectre.rst +@@ -0,0 +1,697 @@ ++.. SPDX-License-Identifier: GPL-2.0 ++ ++Spectre Side Channels ++===================== ++ ++Spectre is a class of side channel attacks that exploit branch prediction ++and speculative execution on modern CPUs to read memory, possibly ++bypassing access controls. Speculative execution side channel exploits ++do not modify memory but attempt to infer privileged data in the memory. ++ ++This document covers Spectre variant 1 and Spectre variant 2. ++ ++Affected processors ++------------------- ++ ++Speculative execution side channel methods affect a wide range of modern ++high performance processors, since most modern high speed processors ++use branch prediction and speculative execution. ++ ++The following CPUs are vulnerable: ++ ++ - Intel Core, Atom, Pentium, and Xeon processors ++ ++ - AMD Phenom, EPYC, and Zen processors ++ ++ - IBM POWER and zSeries processors ++ ++ - Higher end ARM processors ++ ++ - Apple CPUs ++ ++ - Higher end MIPS CPUs ++ ++ - Likely most other high performance CPUs. Contact your CPU vendor for details. ++ ++Whether a processor is affected or not can be read out from the Spectre ++vulnerability files in sysfs. See :ref:`spectre_sys_info`. ++ ++Related CVEs ++------------ ++ ++The following CVE entries describe Spectre variants: ++ ++ ============= ======================= ================= ++ CVE-2017-5753 Bounds check bypass Spectre variant 1 ++ CVE-2017-5715 Branch target injection Spectre variant 2 ++ ============= ======================= ================= ++ ++Problem ++------- ++ ++CPUs use speculative operations to improve performance. That may leave ++traces of memory accesses or computations in the processor's caches, ++buffers, and branch predictors. Malicious software may be able to ++influence the speculative execution paths, and then use the side effects ++of the speculative execution in the CPUs' caches and buffers to infer ++privileged data touched during the speculative execution. ++ ++Spectre variant 1 attacks take advantage of speculative execution of ++conditional branches, while Spectre variant 2 attacks use speculative ++execution of indirect branches to leak privileged memory. ++See :ref:`[1] <spec_ref1>` :ref:`[5] <spec_ref5>` :ref:`[7] <spec_ref7>` ++:ref:`[10] <spec_ref10>` :ref:`[11] <spec_ref11>`. ++ ++Spectre variant 1 (Bounds Check Bypass) ++--------------------------------------- ++ ++The bounds check bypass attack :ref:`[2] <spec_ref2>` takes advantage ++of speculative execution that bypasses conditional branch instructions ++used for memory access bounds check (e.g. checking if the index of an ++array results in memory access within a valid range). This results in ++memory accesses to invalid memory (with out-of-bound index) that are ++done speculatively before validation checks resolve. Such speculative ++memory accesses can leave side effects, creating side channels which ++leak information to the attacker. ++ ++There are some extensions of Spectre variant 1 attacks for reading data ++over the network, see :ref:`[12] <spec_ref12>`. However such attacks ++are difficult, low bandwidth, fragile, and are considered low risk. ++ ++Spectre variant 2 (Branch Target Injection) ++------------------------------------------- ++ ++The branch target injection attack takes advantage of speculative ++execution of indirect branches :ref:`[3] <spec_ref3>`. The indirect ++branch predictors inside the processor used to guess the target of ++indirect branches can be influenced by an attacker, causing gadget code ++to be speculatively executed, thus exposing sensitive data touched by ++the victim. The side effects left in the CPU's caches during speculative ++execution can be measured to infer data values. ++ ++.. _poison_btb: ++ ++In Spectre variant 2 attacks, the attacker can steer speculative indirect ++branches in the victim to gadget code by poisoning the branch target ++buffer of a CPU used for predicting indirect branch addresses. Such ++poisoning could be done by indirect branching into existing code, ++with the address offset of the indirect branch under the attacker's ++control. Since the branch prediction on impacted hardware does not ++fully disambiguate branch address and uses the offset for prediction, ++this could cause privileged code's indirect branch to jump to a gadget ++code with the same offset. ++ ++The most useful gadgets take an attacker-controlled input parameter (such ++as a register value) so that the memory read can be controlled. Gadgets ++without input parameters might be possible, but the attacker would have ++very little control over what memory can be read, reducing the risk of ++the attack revealing useful data. ++ ++One other variant 2 attack vector is for the attacker to poison the ++return stack buffer (RSB) :ref:`[13] <spec_ref13>` to cause speculative ++subroutine return instruction execution to go to a gadget. An attacker's ++imbalanced subroutine call instructions might "poison" entries in the ++return stack buffer which are later consumed by a victim's subroutine ++return instructions. This attack can be mitigated by flushing the return ++stack buffer on context switch, or virtual machine (VM) exit. ++ ++On systems with simultaneous multi-threading (SMT), attacks are possible ++from the sibling thread, as level 1 cache and branch target buffer ++(BTB) may be shared between hardware threads in a CPU core. A malicious ++program running on the sibling thread may influence its peer's BTB to ++steer its indirect branch speculations to gadget code, and measure the ++speculative execution's side effects left in level 1 cache to infer the ++victim's data. ++ ++Attack scenarios ++---------------- ++ ++The following list of attack scenarios have been anticipated, but may ++not cover all possible attack vectors. ++ ++1. A user process attacking the kernel ++^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ++ ++ The attacker passes a parameter to the kernel via a register or ++ via a known address in memory during a syscall. Such parameter may ++ be used later by the kernel as an index to an array or to derive ++ a pointer for a Spectre variant 1 attack. The index or pointer ++ is invalid, but bound checks are bypassed in the code branch taken ++ for speculative execution. This could cause privileged memory to be ++ accessed and leaked. ++ ++ For kernel code that has been identified where data pointers could ++ potentially be influenced for Spectre attacks, new "nospec" accessor ++ macros are used to prevent speculative loading of data. ++ ++ Spectre variant 2 attacker can :ref:`poison <poison_btb>` the branch ++ target buffer (BTB) before issuing syscall to launch an attack. ++ After entering the kernel, the kernel could use the poisoned branch ++ target buffer on indirect jump and jump to gadget code in speculative ++ execution. ++ ++ If an attacker tries to control the memory addresses leaked during ++ speculative execution, he would also need to pass a parameter to the ++ gadget, either through a register or a known address in memory. After ++ the gadget has executed, he can measure the side effect. ++ ++ The kernel can protect itself against consuming poisoned branch ++ target buffer entries by using return trampolines (also known as ++ "retpoline") :ref:`[3] <spec_ref3>` :ref:`[9] <spec_ref9>` for all ++ indirect branches. Return trampolines trap speculative execution paths ++ to prevent jumping to gadget code during speculative execution. ++ x86 CPUs with Enhanced Indirect Branch Restricted Speculation ++ (Enhanced IBRS) available in hardware should use the feature to ++ mitigate Spectre variant 2 instead of retpoline. Enhanced IBRS is ++ more efficient than retpoline. ++ ++ There may be gadget code in firmware which could be exploited with ++ Spectre variant 2 attack by a rogue user process. To mitigate such ++ attacks on x86, Indirect Branch Restricted Speculation (IBRS) feature ++ is turned on before the kernel invokes any firmware code. ++ ++2. A user process attacking another user process ++^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ++ ++ A malicious user process can try to attack another user process, ++ either via a context switch on the same hardware thread, or from the ++ sibling hyperthread sharing a physical processor core on simultaneous ++ multi-threading (SMT) system. ++ ++ Spectre variant 1 attacks generally require passing parameters ++ between the processes, which needs a data passing relationship, such ++ as remote procedure calls (RPC). Those parameters are used in gadget ++ code to derive invalid data pointers accessing privileged memory in ++ the attacked process. ++ ++ Spectre variant 2 attacks can be launched from a rogue process by ++ :ref:`poisoning <poison_btb>` the branch target buffer. This can ++ influence the indirect branch targets for a victim process that either ++ runs later on the same hardware thread, or running concurrently on ++ a sibling hardware thread sharing the same physical core. ++ ++ A user process can protect itself against Spectre variant 2 attacks ++ by using the prctl() syscall to disable indirect branch speculation ++ for itself. An administrator can also cordon off an unsafe process ++ from polluting the branch target buffer by disabling the process's ++ indirect branch speculation. This comes with a performance cost ++ from not using indirect branch speculation and clearing the branch ++ target buffer. When SMT is enabled on x86, for a process that has ++ indirect branch speculation disabled, Single Threaded Indirect Branch ++ Predictors (STIBP) :ref:`[4] <spec_ref4>` are turned on to prevent the ++ sibling thread from controlling branch target buffer. In addition, ++ the Indirect Branch Prediction Barrier (IBPB) is issued to clear the ++ branch target buffer when context switching to and from such process. ++ ++ On x86, the return stack buffer is stuffed on context switch. ++ This prevents the branch target buffer from being used for branch ++ prediction when the return stack buffer underflows while switching to ++ a deeper call stack. Any poisoned entries in the return stack buffer ++ left by the previous process will also be cleared. ++ ++ User programs should use address space randomization to make attacks ++ more difficult (Set /proc/sys/kernel/randomize_va_space = 1 or 2). ++ ++3. A virtualized guest attacking the host ++^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ++ ++ The attack mechanism is similar to how user processes attack the ++ kernel. The kernel is entered via hyper-calls or other virtualization ++ exit paths. ++ ++ For Spectre variant 1 attacks, rogue guests can pass parameters ++ (e.g. in registers) via hyper-calls to derive invalid pointers to ++ speculate into privileged memory after entering the kernel. For places ++ where such kernel code has been identified, nospec accessor macros ++ are used to stop speculative memory access. ++ ++ For Spectre variant 2 attacks, rogue guests can :ref:`poison ++ <poison_btb>` the branch target buffer or return stack buffer, causing ++ the kernel to jump to gadget code in the speculative execution paths. ++ ++ To mitigate variant 2, the host kernel can use return trampolines ++ for indirect branches to bypass the poisoned branch target buffer, ++ and flushing the return stack buffer on VM exit. This prevents rogue ++ guests from affecting indirect branching in the host kernel. ++ ++ To protect host processes from rogue guests, host processes can have ++ indirect branch speculation disabled via prctl(). The branch target ++ buffer is cleared before context switching to such processes. ++ ++4. A virtualized guest attacking other guest ++^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ++ ++ A rogue guest may attack another guest to get data accessible by the ++ other guest. ++ ++ Spectre variant 1 attacks are possible if parameters can be passed ++ between guests. This may be done via mechanisms such as shared memory ++ or message passing. Such parameters could be used to derive data ++ pointers to privileged data in guest. The privileged data could be ++ accessed by gadget code in the victim's speculation paths. ++ ++ Spectre variant 2 attacks can be launched from a rogue guest by ++ :ref:`poisoning <poison_btb>` the branch target buffer or the return ++ stack buffer. Such poisoned entries could be used to influence ++ speculation execution paths in the victim guest. ++ ++ Linux kernel mitigates attacks to other guests running in the same ++ CPU hardware thread by flushing the return stack buffer on VM exit, ++ and clearing the branch target buffer before switching to a new guest. ++ ++ If SMT is used, Spectre variant 2 attacks from an untrusted guest ++ in the sibling hyperthread can be mitigated by the administrator, ++ by turning off the unsafe guest's indirect branch speculation via ++ prctl(). A guest can also protect itself by turning on microcode ++ based mitigations (such as IBPB or STIBP on x86) within the guest. ++ ++.. _spectre_sys_info: ++ ++Spectre system information ++-------------------------- ++ ++The Linux kernel provides a sysfs interface to enumerate the current ++mitigation status of the system for Spectre: whether the system is ++vulnerable, and which mitigations are active. ++ ++The sysfs file showing Spectre variant 1 mitigation status is: ++ ++ /sys/devices/system/cpu/vulnerabilities/spectre_v1 ++ ++The possible values in this file are: ++ ++ ======================================= ================================= ++ 'Mitigation: __user pointer sanitation' Protection in kernel on a case by ++ case base with explicit pointer ++ sanitation. ++ ======================================= ================================= ++ ++However, the protections are put in place on a case by case basis, ++and there is no guarantee that all possible attack vectors for Spectre ++variant 1 are covered. ++ ++The spectre_v2 kernel file reports if the kernel has been compiled with ++retpoline mitigation or if the CPU has hardware mitigation, and if the ++CPU has support for additional process-specific mitigation. ++ ++This file also reports CPU features enabled by microcode to mitigate ++attack between user processes: ++ ++1. Indirect Branch Prediction Barrier (IBPB) to add additional ++ isolation between processes of different users. ++2. Single Thread Indirect Branch Predictors (STIBP) to add additional ++ isolation between CPU threads running on the same core. ++ ++These CPU features may impact performance when used and can be enabled ++per process on a case-by-case base. ++ ++The sysfs file showing Spectre variant 2 mitigation status is: ++ ++ /sys/devices/system/cpu/vulnerabilities/spectre_v2 ++ ++The possible values in this file are: ++ ++ - Kernel status: ++ ++ ==================================== ================================= ++ 'Not affected' The processor is not vulnerable ++ 'Vulnerable' Vulnerable, no mitigation ++ 'Mitigation: Full generic retpoline' Software-focused mitigation ++ 'Mitigation: Full AMD retpoline' AMD-specific software mitigation ++ 'Mitigation: Enhanced IBRS' Hardware-focused mitigation ++ ==================================== ================================= ++ ++ - Firmware status: Show if Indirect Branch Restricted Speculation (IBRS) is ++ used to protect against Spectre variant 2 attacks when calling firmware (x86 only). ++ ++ ========== ============================================================= ++ 'IBRS_FW' Protection against user program attacks when calling firmware ++ ========== ============================================================= ++ ++ - Indirect branch prediction barrier (IBPB) status for protection between ++ processes of different users. This feature can be controlled through ++ prctl() per process, or through kernel command line options. This is ++ an x86 only feature. For more details see below. ++ ++ =================== ======================================================== ++ 'IBPB: disabled' IBPB unused ++ 'IBPB: always-on' Use IBPB on all tasks ++ 'IBPB: conditional' Use IBPB on SECCOMP or indirect branch restricted tasks ++ =================== ======================================================== ++ ++ - Single threaded indirect branch prediction (STIBP) status for protection ++ between different hyper threads. This feature can be controlled through ++ prctl per process, or through kernel command line options. This is x86 ++ only feature. For more details see below. ++ ++ ==================== ======================================================== ++ 'STIBP: disabled' STIBP unused ++ 'STIBP: forced' Use STIBP on all tasks ++ 'STIBP: conditional' Use STIBP on SECCOMP or indirect branch restricted tasks ++ ==================== ======================================================== ++ ++ - Return stack buffer (RSB) protection status: ++ ++ ============= =========================================== ++ 'RSB filling' Protection of RSB on context switch enabled ++ ============= =========================================== ++ ++Full mitigation might require a microcode update from the CPU ++vendor. When the necessary microcode is not available, the kernel will ++report vulnerability. ++ ++Turning on mitigation for Spectre variant 1 and Spectre variant 2 ++----------------------------------------------------------------- ++ ++1. Kernel mitigation ++^^^^^^^^^^^^^^^^^^^^ ++ ++ For the Spectre variant 1, vulnerable kernel code (as determined ++ by code audit or scanning tools) is annotated on a case by case ++ basis to use nospec accessor macros for bounds clipping :ref:`[2] ++ <spec_ref2>` to avoid any usable disclosure gadgets. However, it may ++ not cover all attack vectors for Spectre variant 1. ++ ++ For Spectre variant 2 mitigation, the compiler turns indirect calls or ++ jumps in the kernel into equivalent return trampolines (retpolines) ++ :ref:`[3] <spec_ref3>` :ref:`[9] <spec_ref9>` to go to the target ++ addresses. Speculative execution paths under retpolines are trapped ++ in an infinite loop to prevent any speculative execution jumping to ++ a gadget. ++ ++ To turn on retpoline mitigation on a vulnerable CPU, the kernel ++ needs to be compiled with a gcc compiler that supports the ++ -mindirect-branch=thunk-extern -mindirect-branch-register options. ++ If the kernel is compiled with a Clang compiler, the compiler needs ++ to support -mretpoline-external-thunk option. The kernel config ++ CONFIG_RETPOLINE needs to be turned on, and the CPU needs to run with ++ the latest updated microcode. ++ ++ On Intel Skylake-era systems the mitigation covers most, but not all, ++ cases. See :ref:`[3] <spec_ref3>` for more details. ++ ++ On CPUs with hardware mitigation for Spectre variant 2 (e.g. Enhanced ++ IBRS on x86), retpoline is automatically disabled at run time. ++ ++ The retpoline mitigation is turned on by default on vulnerable ++ CPUs. It can be forced on or off by the administrator ++ via the kernel command line and sysfs control files. See ++ :ref:`spectre_mitigation_control_command_line`. ++ ++ On x86, indirect branch restricted speculation is turned on by default ++ before invoking any firmware code to prevent Spectre variant 2 exploits ++ using the firmware. ++ ++ Using kernel address space randomization (CONFIG_RANDOMIZE_SLAB=y ++ and CONFIG_SLAB_FREELIST_RANDOM=y in the kernel configuration) makes ++ attacks on the kernel generally more difficult. ++ ++2. User program mitigation ++^^^^^^^^^^^^^^^^^^^^^^^^^^ ++ ++ User programs can mitigate Spectre variant 1 using LFENCE or "bounds ++ clipping". For more details see :ref:`[2] <spec_ref2>`. ++ ++ For Spectre variant 2 mitigation, individual user programs ++ can be compiled with return trampolines for indirect branches. ++ This protects them from consuming poisoned entries in the branch ++ target buffer left by malicious software. Alternatively, the ++ programs can disable their indirect branch speculation via prctl() ++ (See :ref:`Documentation/userspace-api/spec_ctrl.rst <set_spec_ctrl>`). ++ On x86, this will turn on STIBP to guard against attacks from the ++ sibling thread when the user program is running, and use IBPB to ++ flush the branch target buffer when switching to/from the program. ++ ++ Restricting indirect branch speculation on a user program will ++ also prevent the program from launching a variant 2 attack ++ on x86. All sand-boxed SECCOMP programs have indirect branch ++ speculation restricted by default. Administrators can change ++ that behavior via the kernel command line and sysfs control files. ++ See :ref:`spectre_mitigation_control_command_line`. ++ ++ Programs that disable their indirect branch speculation will have ++ more overhead and run slower. ++ ++ User programs should use address space randomization ++ (/proc/sys/kernel/randomize_va_space = 1 or 2) to make attacks more ++ difficult. ++ ++3. VM mitigation ++^^^^^^^^^^^^^^^^ ++ ++ Within the kernel, Spectre variant 1 attacks from rogue guests are ++ mitigated on a case by case basis in VM exit paths. Vulnerable code ++ uses nospec accessor macros for "bounds clipping", to avoid any ++ usable disclosure gadgets. However, this may not cover all variant ++ 1 attack vectors. ++ ++ For Spectre variant 2 attacks from rogue guests to the kernel, the ++ Linux kernel uses retpoline or Enhanced IBRS to prevent consumption of ++ poisoned entries in branch target buffer left by rogue guests. It also ++ flushes the return stack buffer on every VM exit to prevent a return ++ stack buffer underflow so poisoned branch target buffer could be used, ++ or attacker guests leaving poisoned entries in the return stack buffer. ++ ++ To mitigate guest-to-guest attacks in the same CPU hardware thread, ++ the branch target buffer is sanitized by flushing before switching ++ to a new guest on a CPU. ++ ++ The above mitigations are turned on by default on vulnerable CPUs. ++ ++ To mitigate guest-to-guest attacks from sibling thread when SMT is ++ in use, an untrusted guest running in the sibling thread can have ++ its indirect branch speculation disabled by administrator via prctl(). ++ ++ The kernel also allows guests to use any microcode based mitigation ++ they choose to use (such as IBPB or STIBP on x86) to protect themselves. ++ ++.. _spectre_mitigation_control_command_line: ++ ++Mitigation control on the kernel command line ++--------------------------------------------- ++ ++Spectre variant 2 mitigation can be disabled or force enabled at the ++kernel command line. ++ ++ nospectre_v2 ++ ++ [X86] Disable all mitigations for the Spectre variant 2 ++ (indirect branch prediction) vulnerability. System may ++ allow data leaks with this option, which is equivalent ++ to spectre_v2=off. ++ ++ ++ spectre_v2= ++ ++ [X86] Control mitigation of Spectre variant 2 ++ (indirect branch speculation) vulnerability. ++ The default operation protects the kernel from ++ user space attacks. ++ ++ on ++ unconditionally enable, implies ++ spectre_v2_user=on ++ off ++ unconditionally disable, implies ++ spectre_v2_user=off ++ auto ++ kernel detects whether your CPU model is ++ vulnerable ++ ++ Selecting 'on' will, and 'auto' may, choose a ++ mitigation method at run time according to the ++ CPU, the available microcode, the setting of the ++ CONFIG_RETPOLINE configuration option, and the ++ compiler with which the kernel was built. ++ ++ Selecting 'on' will also enable the mitigation ++ against user space to user space task attacks. ++ ++ Selecting 'off' will disable both the kernel and ++ the user space protections. ++ ++ Specific mitigations can also be selected manually: ++ ++ retpoline ++ replace indirect branches ++ retpoline,generic ++ google's original retpoline ++ retpoline,amd ++ AMD-specific minimal thunk ++ ++ Not specifying this option is equivalent to ++ spectre_v2=auto. ++ ++For user space mitigation: ++ ++ spectre_v2_user= ++ ++ [X86] Control mitigation of Spectre variant 2 ++ (indirect branch speculation) vulnerability between ++ user space tasks ++ ++ on ++ Unconditionally enable mitigations. Is ++ enforced by spectre_v2=on ++ ++ off ++ Unconditionally disable mitigations. Is ++ enforced by spectre_v2=off ++ ++ prctl ++ Indirect branch speculation is enabled, ++ but mitigation can be enabled via prctl ++ per thread. The mitigation control state ++ is inherited on fork. ++ ++ prctl,ibpb ++ Like "prctl" above, but only STIBP is ++ controlled per thread. IBPB is issued ++ always when switching between different user ++ space processes. ++ ++ seccomp ++ Same as "prctl" above, but all seccomp ++ threads will enable the mitigation unless ++ they explicitly opt out. ++ ++ seccomp,ibpb ++ Like "seccomp" above, but only STIBP is ++ controlled per thread. IBPB is issued ++ always when switching between different ++ user space processes. ++ ++ auto ++ Kernel selects the mitigation depending on ++ the available CPU features and vulnerability. ++ ++ Default mitigation: ++ If CONFIG_SECCOMP=y then "seccomp", otherwise "prctl" ++ ++ Not specifying this option is equivalent to ++ spectre_v2_user=auto. ++ ++ In general the kernel by default selects ++ reasonable mitigations for the current CPU. To ++ disable Spectre variant 2 mitigations, boot with ++ spectre_v2=off. Spectre variant 1 mitigations ++ cannot be disabled. ++ ++Mitigation selection guide ++-------------------------- ++ ++1. Trusted userspace ++^^^^^^^^^^^^^^^^^^^^ ++ ++ If all userspace applications are from trusted sources and do not ++ execute externally supplied untrusted code, then the mitigations can ++ be disabled. ++ ++2. Protect sensitive programs ++^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ++ ++ For security-sensitive programs that have secrets (e.g. crypto ++ keys), protection against Spectre variant 2 can be put in place by ++ disabling indirect branch speculation when the program is running ++ (See :ref:`Documentation/userspace-api/spec_ctrl.rst <set_spec_ctrl>`). ++ ++3. Sandbox untrusted programs ++^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ++ ++ Untrusted programs that could be a source of attacks can be cordoned ++ off by disabling their indirect branch speculation when they are run ++ (See :ref:`Documentation/userspace-api/spec_ctrl.rst <set_spec_ctrl>`). ++ This prevents untrusted programs from polluting the branch target ++ buffer. All programs running in SECCOMP sandboxes have indirect ++ branch speculation restricted by default. This behavior can be ++ changed via the kernel command line and sysfs control files. See ++ :ref:`spectre_mitigation_control_command_line`. ++ ++3. High security mode ++^^^^^^^^^^^^^^^^^^^^^ ++ ++ All Spectre variant 2 mitigations can be forced on ++ at boot time for all programs (See the "on" option in ++ :ref:`spectre_mitigation_control_command_line`). This will add ++ overhead as indirect branch speculations for all programs will be ++ restricted. ++ ++ On x86, branch target buffer will be flushed with IBPB when switching ++ to a new program. STIBP is left on all the time to protect programs ++ against variant 2 attacks originating from programs running on ++ sibling threads. ++ ++ Alternatively, STIBP can be used only when running programs ++ whose indirect branch speculation is explicitly disabled, ++ while IBPB is still used all the time when switching to a new ++ program to clear the branch target buffer (See "ibpb" option in ++ :ref:`spectre_mitigation_control_command_line`). This "ibpb" option ++ has less performance cost than the "on" option, which leaves STIBP ++ on all the time. ++ ++References on Spectre ++--------------------- ++ ++Intel white papers: ++ ++.. _spec_ref1: ++ ++[1] `Intel analysis of speculative execution side channels <https://newsroom.intel.com/wp-content/uploads/sites/11/2018/01/Intel-Analysis-of-Speculative-Execution-Side-Channels.pdf>`_. ++ ++.. _spec_ref2: ++ ++[2] `Bounds check bypass <https://software.intel.com/security-software-guidance/software-guidance/bounds-check-bypass>`_. ++ ++.. _spec_ref3: ++ ++[3] `Deep dive: Retpoline: A branch target injection mitigation <https://software.intel.com/security-software-guidance/insights/deep-dive-retpoline-branch-target-injection-mitigation>`_. ++ ++.. _spec_ref4: ++ ++[4] `Deep Dive: Single Thread Indirect Branch Predictors <https://software.intel.com/security-software-guidance/insights/deep-dive-single-thread-indirect-branch-predictors>`_. ++ ++AMD white papers: ++ ++.. _spec_ref5: ++ ++[5] `AMD64 technology indirect branch control extension <https://developer.amd.com/wp-content/resources/Architecture_Guidelines_Update_Indirect_Branch_Control.pdf>`_. ++ ++.. _spec_ref6: ++ ++[6] `Software techniques for managing speculation on AMD processors <https://developer.amd.com/wp-content/resources/90343-B_SoftwareTechniquesforManagingSpeculation_WP_7-18Update_FNL.pdf>`_. ++ ++ARM white papers: ++ ++.. _spec_ref7: ++ ++[7] `Cache speculation side-channels <https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/download-the-whitepaper>`_. ++ ++.. _spec_ref8: ++ ++[8] `Cache speculation issues update <https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/latest-updates/cache-speculation-issues-update>`_. ++ ++Google white paper: ++ ++.. _spec_ref9: ++ ++[9] `Retpoline: a software construct for preventing branch-target-injection <https://support.google.com/faqs/answer/7625886>`_. ++ ++MIPS white paper: ++ ++.. _spec_ref10: ++ ++[10] `MIPS: response on speculative execution and side channel vulnerabilities <https://www.mips.com/blog/mips-response-on-speculative-execution-and-side-channel-vulnerabilities/>`_. ++ ++Academic papers: ++ ++.. _spec_ref11: ++ ++[11] `Spectre Attacks: Exploiting Speculative Execution <https://spectreattack.com/spectre.pdf>`_. ++ ++.. _spec_ref12: ++ ++[12] `NetSpectre: Read Arbitrary Memory over Network <https://arxiv.org/abs/1807.10535>`_. ++ ++.. _spec_ref13: ++ ++[13] `Spectre Returns! Speculation Attacks using the Return Stack Buffer <https://www.usenix.org/system/files/conference/woot18/woot18-paper-koruyeh.pdf>`_. +diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt b/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt +index ee3723beb701..33b38716b77f 100644 +--- a/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt ++++ b/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt +@@ -4,6 +4,7 @@ Required properties: + - compatible: Should be one of the following: + - "microchip,mcp2510" for MCP2510. + - "microchip,mcp2515" for MCP2515. ++ - "microchip,mcp25625" for MCP25625. + - reg: SPI chip select. + - clocks: The clock feeding the CAN controller. + - interrupt-parent: The parent interrupt controller. +diff --git a/Documentation/userspace-api/spec_ctrl.rst b/Documentation/userspace-api/spec_ctrl.rst +index c4dbe6f7cdae..0fda8f614110 100644 +--- a/Documentation/userspace-api/spec_ctrl.rst ++++ b/Documentation/userspace-api/spec_ctrl.rst +@@ -47,6 +47,8 @@ If PR_SPEC_PRCTL is set, then the per-task control of the mitigation is + available. If not set, prctl(PR_SET_SPECULATION_CTRL) for the speculation + misfeature will fail. + ++.. _set_spec_ctrl: ++ + PR_SET_SPECULATION_CTRL + ----------------------- + +diff --git a/Makefile b/Makefile +index c36e64bd9ae7..97c744513af0 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,7 +1,7 @@ + # SPDX-License-Identifier: GPL-2.0 + VERSION = 4 + PATCHLEVEL = 14 +-SUBLEVEL = 133 ++SUBLEVEL = 134 + EXTRAVERSION = + NAME = Petit Gorille + +diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c +index 333daab7def0..93453fa48193 100644 +--- a/arch/arc/kernel/unwind.c ++++ b/arch/arc/kernel/unwind.c +@@ -185,11 +185,6 @@ static void *__init unw_hdr_alloc_early(unsigned long sz) + MAX_DMA_ADDRESS); + } + +-static void *unw_hdr_alloc(unsigned long sz) +-{ +- return kmalloc(sz, GFP_KERNEL); +-} +- + static void init_unwind_table(struct unwind_table *table, const char *name, + const void *core_start, unsigned long core_size, + const void *init_start, unsigned long init_size, +@@ -370,6 +365,10 @@ ret_err: + } + + #ifdef CONFIG_MODULES ++static void *unw_hdr_alloc(unsigned long sz) ++{ ++ return kmalloc(sz, GFP_KERNEL); ++} + + static struct unwind_table *last_table; + +diff --git a/arch/arm/boot/dts/am335x-pcm-953.dtsi b/arch/arm/boot/dts/am335x-pcm-953.dtsi +index 1ec8e0d80191..572fbd254690 100644 +--- a/arch/arm/boot/dts/am335x-pcm-953.dtsi ++++ b/arch/arm/boot/dts/am335x-pcm-953.dtsi +@@ -197,7 +197,7 @@ + bus-width = <4>; + pinctrl-names = "default"; + pinctrl-0 = <&mmc1_pins>; +- cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>; ++ cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>; + status = "okay"; + }; + +diff --git a/arch/arm/boot/dts/am335x-wega.dtsi b/arch/arm/boot/dts/am335x-wega.dtsi +index 8ce541739b24..83e4fe595e37 100644 +--- a/arch/arm/boot/dts/am335x-wega.dtsi ++++ b/arch/arm/boot/dts/am335x-wega.dtsi +@@ -157,7 +157,7 @@ + bus-width = <4>; + pinctrl-names = "default"; + pinctrl-0 = <&mmc1_pins>; +- cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>; ++ cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>; + status = "okay"; + }; + +diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi +index 036aeba4f02c..49f4bdc0d864 100644 +--- a/arch/arm/boot/dts/imx6ul.dtsi ++++ b/arch/arm/boot/dts/imx6ul.dtsi +@@ -342,7 +342,7 @@ + pwm1: pwm@02080000 { + compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm"; + reg = <0x02080000 0x4000>; +- interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>; ++ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6UL_CLK_PWM1>, + <&clks IMX6UL_CLK_PWM1>; + clock-names = "ipg", "per"; +@@ -353,7 +353,7 @@ + pwm2: pwm@02084000 { + compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm"; + reg = <0x02084000 0x4000>; +- interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>; ++ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6UL_CLK_PWM2>, + <&clks IMX6UL_CLK_PWM2>; + clock-names = "ipg", "per"; +@@ -364,7 +364,7 @@ + pwm3: pwm@02088000 { + compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm"; + reg = <0x02088000 0x4000>; +- interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>; ++ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6UL_CLK_PWM3>, + <&clks IMX6UL_CLK_PWM3>; + clock-names = "ipg", "per"; +@@ -375,7 +375,7 @@ + pwm4: pwm@0208c000 { + compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm"; + reg = <0x0208c000 0x4000>; +- interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>; ++ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6UL_CLK_PWM4>, + <&clks IMX6UL_CLK_PWM4>; + clock-names = "ipg", "per"; +diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c +index 2f6ac1afa804..686e7e6f2eb3 100644 +--- a/arch/arm/mach-davinci/board-da850-evm.c ++++ b/arch/arm/mach-davinci/board-da850-evm.c +@@ -1464,6 +1464,8 @@ static __init void da850_evm_init(void) + if (ret) + pr_warn("%s: dsp/rproc registration failed: %d\n", + __func__, ret); ++ ++ regulator_has_full_constraints(); + } + + #ifdef CONFIG_SERIAL_8250_CONSOLE +diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c +index 22440c05d66a..7120f93eab0b 100644 +--- a/arch/arm/mach-davinci/devices-da8xx.c ++++ b/arch/arm/mach-davinci/devices-da8xx.c +@@ -699,6 +699,9 @@ static struct platform_device da8xx_lcdc_device = { + .id = 0, + .num_resources = ARRAY_SIZE(da8xx_lcdc_resources), + .resource = da8xx_lcdc_resources, ++ .dev = { ++ .coherent_dma_mask = DMA_BIT_MASK(32), ++ } + }; + + int __init da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata) +diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c +index a2dd13217c89..2819c43fe754 100644 +--- a/arch/arm/mach-omap2/prm3xxx.c ++++ b/arch/arm/mach-omap2/prm3xxx.c +@@ -433,7 +433,7 @@ static void omap3_prm_reconfigure_io_chain(void) + * registers, and omap3xxx_prm_reconfigure_io_chain() must be called. + * No return value. + */ +-static void __init omap3xxx_prm_enable_io_wakeup(void) ++static void omap3xxx_prm_enable_io_wakeup(void) + { + if (prm_features & PRM_HAS_IO_WAKEUP) + omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, +diff --git a/arch/mips/include/uapi/asm/sgidefs.h b/arch/mips/include/uapi/asm/sgidefs.h +index 26143e3b7c26..69c3de90c536 100644 +--- a/arch/mips/include/uapi/asm/sgidefs.h ++++ b/arch/mips/include/uapi/asm/sgidefs.h +@@ -11,14 +11,6 @@ + #ifndef __ASM_SGIDEFS_H + #define __ASM_SGIDEFS_H + +-/* +- * Using a Linux compiler for building Linux seems logic but not to +- * everybody. +- */ +-#ifndef __linux__ +-#error Use a Linux compiler or give up. +-#endif +- + /* + * Definitions for the ISA levels + * +diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h +index 2d58478c2745..9fee469d7130 100644 +--- a/arch/s390/include/asm/facility.h ++++ b/arch/s390/include/asm/facility.h +@@ -59,6 +59,18 @@ static inline int test_facility(unsigned long nr) + return __test_facility(nr, &S390_lowcore.stfle_fac_list); + } + ++static inline unsigned long __stfle_asm(u64 *stfle_fac_list, int size) ++{ ++ register unsigned long reg0 asm("0") = size - 1; ++ ++ asm volatile( ++ ".insn s,0xb2b00000,0(%1)" /* stfle */ ++ : "+d" (reg0) ++ : "a" (stfle_fac_list) ++ : "memory", "cc"); ++ return reg0; ++} ++ + /** + * stfle - Store facility list extended + * @stfle_fac_list: array where facility list can be stored +@@ -76,13 +88,8 @@ static inline void stfle(u64 *stfle_fac_list, int size) + memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4); + if (S390_lowcore.stfl_fac_list & 0x01000000) { + /* More facility bits available with stfle */ +- register unsigned long reg0 asm("0") = size - 1; +- +- asm volatile(".insn s,0xb2b00000,0(%1)" /* stfle */ +- : "+d" (reg0) +- : "a" (stfle_fac_list) +- : "memory", "cc"); +- nr = (reg0 + 1) * 8; /* # bytes stored by stfle */ ++ nr = __stfle_asm(stfle_fac_list, size); ++ nr = min_t(unsigned long, (nr + 1) * 8, size * 8); + } + memset((char *) stfle_fac_list + nr, 0, size * 8 - nr); + preempt_enable(); +diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c +index 45b5c6c4a55e..7c67d8939f3e 100644 +--- a/arch/x86/kernel/head64.c ++++ b/arch/x86/kernel/head64.c +@@ -117,26 +117,27 @@ unsigned long __head __startup_64(unsigned long physaddr, + pgd[i + 0] = (pgdval_t)p4d + pgtable_flags; + pgd[i + 1] = (pgdval_t)p4d + pgtable_flags; + +- i = (physaddr >> P4D_SHIFT) % PTRS_PER_P4D; +- p4d[i + 0] = (pgdval_t)pud + pgtable_flags; +- p4d[i + 1] = (pgdval_t)pud + pgtable_flags; ++ i = physaddr >> P4D_SHIFT; ++ p4d[(i + 0) % PTRS_PER_P4D] = (pgdval_t)pud + pgtable_flags; ++ p4d[(i + 1) % PTRS_PER_P4D] = (pgdval_t)pud + pgtable_flags; + } else { + i = (physaddr >> PGDIR_SHIFT) % PTRS_PER_PGD; + pgd[i + 0] = (pgdval_t)pud + pgtable_flags; + pgd[i + 1] = (pgdval_t)pud + pgtable_flags; + } + +- i = (physaddr >> PUD_SHIFT) % PTRS_PER_PUD; +- pud[i + 0] = (pudval_t)pmd + pgtable_flags; +- pud[i + 1] = (pudval_t)pmd + pgtable_flags; ++ i = physaddr >> PUD_SHIFT; ++ pud[(i + 0) % PTRS_PER_PUD] = (pudval_t)pmd + pgtable_flags; ++ pud[(i + 1) % PTRS_PER_PUD] = (pudval_t)pmd + pgtable_flags; + + pmd_entry = __PAGE_KERNEL_LARGE_EXEC & ~_PAGE_GLOBAL; + pmd_entry += sme_get_me_mask(); + pmd_entry += physaddr; + + for (i = 0; i < DIV_ROUND_UP(_end - _text, PMD_SIZE); i++) { +- int idx = i + (physaddr >> PMD_SHIFT) % PTRS_PER_PMD; +- pmd[idx] = pmd_entry + i * PMD_SIZE; ++ int idx = i + (physaddr >> PMD_SHIFT); ++ ++ pmd[idx % PTRS_PER_PMD] = pmd_entry + i * PMD_SIZE; + } + + /* +diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c +index ed5c4cdf0a34..2a65ab291312 100644 +--- a/arch/x86/kernel/ptrace.c ++++ b/arch/x86/kernel/ptrace.c +@@ -24,6 +24,7 @@ + #include <linux/rcupdate.h> + #include <linux/export.h> + #include <linux/context_tracking.h> ++#include <linux/nospec.h> + + #include <linux/uaccess.h> + #include <asm/pgtable.h> +@@ -651,9 +652,11 @@ static unsigned long ptrace_get_debugreg(struct task_struct *tsk, int n) + { + struct thread_struct *thread = &tsk->thread; + unsigned long val = 0; ++ int index = n; + + if (n < HBP_NUM) { +- struct perf_event *bp = thread->ptrace_bps[n]; ++ struct perf_event *bp = thread->ptrace_bps[index]; ++ index = array_index_nospec(index, HBP_NUM); + + if (bp) + val = bp->hw.info.address; +diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c +index a5b802a12212..71d3fef1edc9 100644 +--- a/arch/x86/kernel/tls.c ++++ b/arch/x86/kernel/tls.c +@@ -5,6 +5,7 @@ + #include <linux/user.h> + #include <linux/regset.h> + #include <linux/syscalls.h> ++#include <linux/nospec.h> + + #include <linux/uaccess.h> + #include <asm/desc.h> +@@ -220,6 +221,7 @@ int do_get_thread_area(struct task_struct *p, int idx, + struct user_desc __user *u_info) + { + struct user_desc info; ++ int index; + + if (idx == -1 && get_user(idx, &u_info->entry_number)) + return -EFAULT; +@@ -227,8 +229,11 @@ int do_get_thread_area(struct task_struct *p, int idx, + if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) + return -EINVAL; + +- fill_user_desc(&info, idx, +- &p->thread.tls_array[idx - GDT_ENTRY_TLS_MIN]); ++ index = idx - GDT_ENTRY_TLS_MIN; ++ index = array_index_nospec(index, ++ GDT_ENTRY_TLS_MAX - GDT_ENTRY_TLS_MIN + 1); ++ ++ fill_user_desc(&info, idx, &p->thread.tls_array[index]); + + if (copy_to_user(u_info, &info, sizeof(info))) + return -EFAULT; +diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c +index 7d45ac451745..e65b0da1007b 100644 +--- a/block/bfq-iosched.c ++++ b/block/bfq-iosched.c +@@ -3760,6 +3760,7 @@ static void bfq_exit_icq_bfqq(struct bfq_io_cq *bic, bool is_sync) + unsigned long flags; + + spin_lock_irqsave(&bfqd->lock, flags); ++ bfqq->bic = NULL; + bfq_exit_bfqq(bfqd, bfqq); + bic_set_bfqq(bic, NULL, is_sync); + spin_unlock_irqrestore(&bfqd->lock, flags); +diff --git a/drivers/android/binder.c b/drivers/android/binder.c +index 96a0f940e54d..1af9f36f89cf 100644 +--- a/drivers/android/binder.c ++++ b/drivers/android/binder.c +@@ -3876,6 +3876,8 @@ retry: + case BINDER_WORK_TRANSACTION_COMPLETE: { + binder_inner_proc_unlock(proc); + cmd = BR_TRANSACTION_COMPLETE; ++ kfree(w); ++ binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE); + if (put_user(cmd, (uint32_t __user *)ptr)) + return -EFAULT; + ptr += sizeof(uint32_t); +@@ -3884,8 +3886,6 @@ retry: + binder_debug(BINDER_DEBUG_TRANSACTION_COMPLETE, + "%d:%d BR_TRANSACTION_COMPLETE\n", + proc->pid, thread->pid); +- kfree(w); +- binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE); + } break; + case BINDER_WORK_NODE: { + struct binder_node *node = container_of(w, struct binder_node, work); +diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c +index 07532d83be0b..e405ea3ca8d8 100644 +--- a/drivers/base/cacheinfo.c ++++ b/drivers/base/cacheinfo.c +@@ -669,7 +669,8 @@ static int cacheinfo_cpu_pre_down(unsigned int cpu) + + static int __init cacheinfo_sysfs_init(void) + { +- return cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "base/cacheinfo:online", ++ return cpuhp_setup_state(CPUHP_AP_BASE_CACHEINFO_ONLINE, ++ "base/cacheinfo:online", + cacheinfo_cpu_online, cacheinfo_cpu_pre_down); + } + device_initcall(cacheinfo_sysfs_init); +diff --git a/drivers/clk/ti/clkctrl.c b/drivers/clk/ti/clkctrl.c +index 82e4d5cccf84..2df8564f08a0 100644 +--- a/drivers/clk/ti/clkctrl.c ++++ b/drivers/clk/ti/clkctrl.c +@@ -215,6 +215,7 @@ static struct clk_hw *_ti_omap4_clkctrl_xlate(struct of_phandle_args *clkspec, + { + struct omap_clkctrl_provider *provider = data; + struct omap_clkctrl_clk *entry; ++ bool found = false; + + if (clkspec->args_count != 2) + return ERR_PTR(-EINVAL); +@@ -224,11 +225,13 @@ static struct clk_hw *_ti_omap4_clkctrl_xlate(struct of_phandle_args *clkspec, + + list_for_each_entry(entry, &provider->clocks, node) { + if (entry->reg_offset == clkspec->args[0] && +- entry->bit_offset == clkspec->args[1]) ++ entry->bit_offset == clkspec->args[1]) { ++ found = true; + break; ++ } + } + +- if (!entry) ++ if (!found) + return ERR_PTR(-EINVAL); + + return entry->clk; +diff --git a/drivers/crypto/nx/nx-842-powernv.c b/drivers/crypto/nx/nx-842-powernv.c +index 874ddf5e9087..dbf80b55c2a4 100644 +--- a/drivers/crypto/nx/nx-842-powernv.c ++++ b/drivers/crypto/nx/nx-842-powernv.c +@@ -34,8 +34,6 @@ MODULE_ALIAS_CRYPTO("842-nx"); + #define WORKMEM_ALIGN (CRB_ALIGN) + #define CSB_WAIT_MAX (5000) /* ms */ + #define VAS_RETRIES (10) +-/* # of requests allowed per RxFIFO at a time. 0 for unlimited */ +-#define MAX_CREDITS_PER_RXFIFO (1024) + + struct nx842_workmem { + /* Below fields must be properly aligned */ +@@ -801,7 +799,11 @@ static int __init vas_cfg_coproc_info(struct device_node *dn, int chip_id, + rxattr.lnotify_lpid = lpid; + rxattr.lnotify_pid = pid; + rxattr.lnotify_tid = tid; +- rxattr.wcreds_max = MAX_CREDITS_PER_RXFIFO; ++ /* ++ * Maximum RX window credits can not be more than #CRBs in ++ * RxFIFO. Otherwise, can get checkstop if RxFIFO overruns. ++ */ ++ rxattr.wcreds_max = fifo_size / CRB_SIZE; + + /* + * Open a VAS receice window which is used to configure RxFIFO +diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c +index 4388f4e3840c..1f8fe1795964 100644 +--- a/drivers/crypto/talitos.c ++++ b/drivers/crypto/talitos.c +@@ -2185,7 +2185,7 @@ static struct talitos_alg_template driver_algs[] = { + .base = { + .cra_name = "authenc(hmac(sha1),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha1-" +- "cbc-aes-talitos", ++ "cbc-aes-talitos-hsna", + .cra_blocksize = AES_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_ASYNC, + }, +@@ -2229,7 +2229,7 @@ static struct talitos_alg_template driver_algs[] = { + .cra_name = "authenc(hmac(sha1)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha1-" +- "cbc-3des-talitos", ++ "cbc-3des-talitos-hsna", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_ASYNC, + }, +@@ -2271,7 +2271,7 @@ static struct talitos_alg_template driver_algs[] = { + .base = { + .cra_name = "authenc(hmac(sha224),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha224-" +- "cbc-aes-talitos", ++ "cbc-aes-talitos-hsna", + .cra_blocksize = AES_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_ASYNC, + }, +@@ -2315,7 +2315,7 @@ static struct talitos_alg_template driver_algs[] = { + .cra_name = "authenc(hmac(sha224)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha224-" +- "cbc-3des-talitos", ++ "cbc-3des-talitos-hsna", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_ASYNC, + }, +@@ -2357,7 +2357,7 @@ static struct talitos_alg_template driver_algs[] = { + .base = { + .cra_name = "authenc(hmac(sha256),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha256-" +- "cbc-aes-talitos", ++ "cbc-aes-talitos-hsna", + .cra_blocksize = AES_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_ASYNC, + }, +@@ -2401,7 +2401,7 @@ static struct talitos_alg_template driver_algs[] = { + .cra_name = "authenc(hmac(sha256)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha256-" +- "cbc-3des-talitos", ++ "cbc-3des-talitos-hsna", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_ASYNC, + }, +@@ -2527,7 +2527,7 @@ static struct talitos_alg_template driver_algs[] = { + .base = { + .cra_name = "authenc(hmac(md5),cbc(aes))", + .cra_driver_name = "authenc-hmac-md5-" +- "cbc-aes-talitos", ++ "cbc-aes-talitos-hsna", + .cra_blocksize = AES_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_ASYNC, + }, +@@ -2569,7 +2569,7 @@ static struct talitos_alg_template driver_algs[] = { + .base = { + .cra_name = "authenc(hmac(md5),cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-md5-" +- "cbc-3des-talitos", ++ "cbc-3des-talitos-hsna", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_ASYNC, + }, +diff --git a/drivers/firmware/efi/efi-bgrt.c b/drivers/firmware/efi/efi-bgrt.c +index 50793fda7819..e3d86aa1ad5d 100644 +--- a/drivers/firmware/efi/efi-bgrt.c ++++ b/drivers/firmware/efi/efi-bgrt.c +@@ -50,11 +50,6 @@ void __init efi_bgrt_init(struct acpi_table_header *table) + bgrt->version); + goto out; + } +- if (bgrt->status & 0xfe) { +- pr_notice("Ignoring BGRT: reserved status bits are non-zero %u\n", +- bgrt->status); +- goto out; +- } + if (bgrt->image_type != 0) { + pr_notice("Ignoring BGRT: invalid image type %u (expected 0)\n", + bgrt->image_type); +diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c +index 0f05b8d8fefa..b829fde80f7b 100644 +--- a/drivers/gpu/drm/drm_bufs.c ++++ b/drivers/gpu/drm/drm_bufs.c +@@ -1321,7 +1321,10 @@ static int copy_one_buf(void *data, int count, struct drm_buf_entry *from) + .size = from->buf_size, + .low_mark = from->low_mark, + .high_mark = from->high_mark}; +- return copy_to_user(to, &v, offsetof(struct drm_buf_desc, flags)); ++ ++ if (copy_to_user(to, &v, offsetof(struct drm_buf_desc, flags))) ++ return -EFAULT; ++ return 0; + } + + int drm_legacy_infobufs(struct drm_device *dev, void *data, +diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c +index f8e96e648acf..bfeeb6a56135 100644 +--- a/drivers/gpu/drm/drm_ioc32.c ++++ b/drivers/gpu/drm/drm_ioc32.c +@@ -372,7 +372,10 @@ static int copy_one_buf32(void *data, int count, struct drm_buf_entry *from) + .size = from->buf_size, + .low_mark = from->low_mark, + .high_mark = from->high_mark}; +- return copy_to_user(to + count, &v, offsetof(drm_buf_desc32_t, flags)); ++ ++ if (copy_to_user(to + count, &v, offsetof(drm_buf_desc32_t, flags))) ++ return -EFAULT; ++ return 0; + } + + static int drm_legacy_infobufs32(struct drm_device *dev, void *data, +diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c +index b45ac6bc8add..b428c3da7576 100644 +--- a/drivers/gpu/drm/udl/udl_drv.c ++++ b/drivers/gpu/drm/udl/udl_drv.c +@@ -43,10 +43,16 @@ static const struct file_operations udl_driver_fops = { + .llseek = noop_llseek, + }; + ++static void udl_driver_release(struct drm_device *dev) ++{ ++ udl_fini(dev); ++ udl_modeset_cleanup(dev); ++ drm_dev_fini(dev); ++ kfree(dev); ++} ++ + static struct drm_driver driver = { + .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, +- .load = udl_driver_load, +- .unload = udl_driver_unload, + .release = udl_driver_release, + + /* gem hooks */ +@@ -70,28 +76,56 @@ static struct drm_driver driver = { + .patchlevel = DRIVER_PATCHLEVEL, + }; + ++static struct udl_device *udl_driver_create(struct usb_interface *interface) ++{ ++ struct usb_device *udev = interface_to_usbdev(interface); ++ struct udl_device *udl; ++ int r; ++ ++ udl = kzalloc(sizeof(*udl), GFP_KERNEL); ++ if (!udl) ++ return ERR_PTR(-ENOMEM); ++ ++ r = drm_dev_init(&udl->drm, &driver, &interface->dev); ++ if (r) { ++ kfree(udl); ++ return ERR_PTR(r); ++ } ++ ++ udl->udev = udev; ++ udl->drm.dev_private = udl; ++ ++ r = udl_init(udl); ++ if (r) { ++ drm_dev_fini(&udl->drm); ++ kfree(udl); ++ return ERR_PTR(r); ++ } ++ ++ usb_set_intfdata(interface, udl); ++ return udl; ++} ++ + static int udl_usb_probe(struct usb_interface *interface, + const struct usb_device_id *id) + { +- struct usb_device *udev = interface_to_usbdev(interface); +- struct drm_device *dev; + int r; ++ struct udl_device *udl; + +- dev = drm_dev_alloc(&driver, &interface->dev); +- if (IS_ERR(dev)) +- return PTR_ERR(dev); ++ udl = udl_driver_create(interface); ++ if (IS_ERR(udl)) ++ return PTR_ERR(udl); + +- r = drm_dev_register(dev, (unsigned long)udev); ++ r = drm_dev_register(&udl->drm, 0); + if (r) + goto err_free; + +- usb_set_intfdata(interface, dev); +- DRM_INFO("Initialized udl on minor %d\n", dev->primary->index); ++ DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index); + + return 0; + + err_free: +- drm_dev_unref(dev); ++ drm_dev_unref(&udl->drm); + return r; + } + +diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h +index 307455dd6526..d5a5dcd15dd8 100644 +--- a/drivers/gpu/drm/udl/udl_drv.h ++++ b/drivers/gpu/drm/udl/udl_drv.h +@@ -49,8 +49,8 @@ struct urb_list { + struct udl_fbdev; + + struct udl_device { ++ struct drm_device drm; + struct device *dev; +- struct drm_device *ddev; + struct usb_device *udev; + struct drm_crtc *crtc; + +@@ -68,6 +68,8 @@ struct udl_device { + atomic_t cpu_kcycles_used; /* transpired during pixel processing */ + }; + ++#define to_udl(x) container_of(x, struct udl_device, drm) ++ + struct udl_gem_object { + struct drm_gem_object base; + struct page **pages; +@@ -99,9 +101,8 @@ struct urb *udl_get_urb(struct drm_device *dev); + int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len); + void udl_urb_completion(struct urb *urb); + +-int udl_driver_load(struct drm_device *dev, unsigned long flags); +-void udl_driver_unload(struct drm_device *dev); +-void udl_driver_release(struct drm_device *dev); ++int udl_init(struct udl_device *udl); ++void udl_fini(struct drm_device *dev); + + int udl_fbdev_init(struct drm_device *dev); + void udl_fbdev_cleanup(struct drm_device *dev); +diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c +index 491f1892b50e..f41fd0684ce4 100644 +--- a/drivers/gpu/drm/udl/udl_fb.c ++++ b/drivers/gpu/drm/udl/udl_fb.c +@@ -82,7 +82,7 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, + int width, int height) + { + struct drm_device *dev = fb->base.dev; +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + int i, ret; + char *cmd; + cycles_t start_cycles, end_cycles; +@@ -210,10 +210,10 @@ static int udl_fb_open(struct fb_info *info, int user) + { + struct udl_fbdev *ufbdev = info->par; + struct drm_device *dev = ufbdev->ufb.base.dev; +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + + /* If the USB device is gone, we don't accept new opens */ +- if (drm_dev_is_unplugged(udl->ddev)) ++ if (drm_dev_is_unplugged(&udl->drm)) + return -ENODEV; + + ufbdev->fb_count++; +@@ -441,7 +441,7 @@ static void udl_fbdev_destroy(struct drm_device *dev, + + int udl_fbdev_init(struct drm_device *dev) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + int bpp_sel = fb_bpp; + struct udl_fbdev *ufbdev; + int ret; +@@ -480,7 +480,7 @@ free: + + void udl_fbdev_cleanup(struct drm_device *dev) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + if (!udl->fbdev) + return; + +@@ -491,7 +491,7 @@ void udl_fbdev_cleanup(struct drm_device *dev) + + void udl_fbdev_unplug(struct drm_device *dev) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + struct udl_fbdev *ufbdev; + if (!udl->fbdev) + return; +diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c +index 60866b422f81..124428f33e1e 100644 +--- a/drivers/gpu/drm/udl/udl_main.c ++++ b/drivers/gpu/drm/udl/udl_main.c +@@ -28,7 +28,7 @@ + static int udl_parse_vendor_descriptor(struct drm_device *dev, + struct usb_device *usbdev) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + char *desc; + char *buf; + char *desc_end; +@@ -164,7 +164,7 @@ void udl_urb_completion(struct urb *urb) + + static void udl_free_urb_list(struct drm_device *dev) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + int count = udl->urbs.count; + struct list_head *node; + struct urb_node *unode; +@@ -198,7 +198,7 @@ static void udl_free_urb_list(struct drm_device *dev) + + static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + struct urb *urb; + struct urb_node *unode; + char *buf; +@@ -262,7 +262,7 @@ retry: + + struct urb *udl_get_urb(struct drm_device *dev) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + int ret = 0; + struct list_head *entry; + struct urb_node *unode; +@@ -296,7 +296,7 @@ error: + + int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + int ret; + + BUG_ON(len > udl->urbs.size); +@@ -311,20 +311,12 @@ int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len) + return ret; + } + +-int udl_driver_load(struct drm_device *dev, unsigned long flags) ++int udl_init(struct udl_device *udl) + { +- struct usb_device *udev = (void*)flags; +- struct udl_device *udl; ++ struct drm_device *dev = &udl->drm; + int ret = -ENOMEM; + + DRM_DEBUG("\n"); +- udl = kzalloc(sizeof(struct udl_device), GFP_KERNEL); +- if (!udl) +- return -ENOMEM; +- +- udl->udev = udev; +- udl->ddev = dev; +- dev->dev_private = udl; + + if (!udl_parse_vendor_descriptor(dev, udl->udev)) { + ret = -ENODEV; +@@ -359,7 +351,6 @@ err_fb: + err: + if (udl->urbs.count) + udl_free_urb_list(dev); +- kfree(udl); + DRM_ERROR("%d\n", ret); + return ret; + } +@@ -370,20 +361,12 @@ int udl_drop_usb(struct drm_device *dev) + return 0; + } + +-void udl_driver_unload(struct drm_device *dev) ++void udl_fini(struct drm_device *dev) + { +- struct udl_device *udl = dev->dev_private; ++ struct udl_device *udl = to_udl(dev); + + if (udl->urbs.count) + udl_free_urb_list(dev); + + udl_fbdev_cleanup(dev); +- kfree(udl); +-} +- +-void udl_driver_release(struct drm_device *dev) +-{ +- udl_modeset_cleanup(dev); +- drm_dev_fini(dev); +- kfree(dev); + } +diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c +index 2165f3dd328b..842c0235471d 100644 +--- a/drivers/input/keyboard/imx_keypad.c ++++ b/drivers/input/keyboard/imx_keypad.c +@@ -530,11 +530,12 @@ static int imx_keypad_probe(struct platform_device *pdev) + return 0; + } + +-static int __maybe_unused imx_kbd_suspend(struct device *dev) ++static int __maybe_unused imx_kbd_noirq_suspend(struct device *dev) + { + struct platform_device *pdev = to_platform_device(dev); + struct imx_keypad *kbd = platform_get_drvdata(pdev); + struct input_dev *input_dev = kbd->input_dev; ++ unsigned short reg_val = readw(kbd->mmio_base + KPSR); + + /* imx kbd can wake up system even clock is disabled */ + mutex_lock(&input_dev->mutex); +@@ -544,13 +545,20 @@ static int __maybe_unused imx_kbd_suspend(struct device *dev) + + mutex_unlock(&input_dev->mutex); + +- if (device_may_wakeup(&pdev->dev)) ++ if (device_may_wakeup(&pdev->dev)) { ++ if (reg_val & KBD_STAT_KPKD) ++ reg_val |= KBD_STAT_KRIE; ++ if (reg_val & KBD_STAT_KPKR) ++ reg_val |= KBD_STAT_KDIE; ++ writew(reg_val, kbd->mmio_base + KPSR); ++ + enable_irq_wake(kbd->irq); ++ } + + return 0; + } + +-static int __maybe_unused imx_kbd_resume(struct device *dev) ++static int __maybe_unused imx_kbd_noirq_resume(struct device *dev) + { + struct platform_device *pdev = to_platform_device(dev); + struct imx_keypad *kbd = platform_get_drvdata(pdev); +@@ -574,7 +582,9 @@ err_clk: + return ret; + } + +-static SIMPLE_DEV_PM_OPS(imx_kbd_pm_ops, imx_kbd_suspend, imx_kbd_resume); ++static const struct dev_pm_ops imx_kbd_pm_ops = { ++ SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(imx_kbd_noirq_suspend, imx_kbd_noirq_resume) ++}; + + static struct platform_driver imx_keypad_driver = { + .driver = { +diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c +index fda33fc3ffcc..ab4888d043f0 100644 +--- a/drivers/input/mouse/elantech.c ++++ b/drivers/input/mouse/elantech.c +@@ -1191,6 +1191,8 @@ static const char * const middle_button_pnp_ids[] = { + "LEN2132", /* ThinkPad P52 */ + "LEN2133", /* ThinkPad P72 w/ NFC */ + "LEN2134", /* ThinkPad P72 */ ++ "LEN0407", ++ "LEN0408", + NULL + }; + +diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c +index a5f279da83a1..1a6a05c45ee7 100644 +--- a/drivers/input/mouse/synaptics.c ++++ b/drivers/input/mouse/synaptics.c +@@ -176,6 +176,7 @@ static const char * const smbus_pnp_ids[] = { + "LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */ + "LEN0073", /* X1 Carbon G5 (Elantech) */ + "LEN0092", /* X1 Carbon 6 */ ++ "LEN0093", /* T480 */ + "LEN0096", /* X280 */ + "LEN0097", /* X280 -> ALPS trackpoint */ + "LEN200f", /* T450s */ +diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c +index 8573c70a1880..e705799976c2 100644 +--- a/drivers/md/dm-verity-target.c ++++ b/drivers/md/dm-verity-target.c +@@ -276,8 +276,8 @@ static int verity_handle_err(struct dm_verity *v, enum verity_block_type type, + BUG(); + } + +- DMERR("%s: %s block %llu is corrupted", v->data_dev->name, type_str, +- block); ++ DMERR_LIMIT("%s: %s block %llu is corrupted", v->data_dev->name, ++ type_str, block); + + if (v->corrupted_errs == DM_VERITY_MAX_CORRUPTED_ERRS) + DMERR("%s: reached maximum errors", v->data_dev->name); +diff --git a/drivers/md/md.c b/drivers/md/md.c +index b27a69388dcd..764ed9c46629 100644 +--- a/drivers/md/md.c ++++ b/drivers/md/md.c +@@ -7605,9 +7605,9 @@ static void status_unused(struct seq_file *seq) + static int status_resync(struct seq_file *seq, struct mddev *mddev) + { + sector_t max_sectors, resync, res; +- unsigned long dt, db; +- sector_t rt; +- int scale; ++ unsigned long dt, db = 0; ++ sector_t rt, curr_mark_cnt, resync_mark_cnt; ++ int scale, recovery_active; + unsigned int per_milli; + + if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) || +@@ -7677,22 +7677,30 @@ static int status_resync(struct seq_file *seq, struct mddev *mddev) + * db: blocks written from mark until now + * rt: remaining time + * +- * rt is a sector_t, so could be 32bit or 64bit. +- * So we divide before multiply in case it is 32bit and close +- * to the limit. +- * We scale the divisor (db) by 32 to avoid losing precision +- * near the end of resync when the number of remaining sectors +- * is close to 'db'. +- * We then divide rt by 32 after multiplying by db to compensate. +- * The '+1' avoids division by zero if db is very small. ++ * rt is a sector_t, which is always 64bit now. We are keeping ++ * the original algorithm, but it is not really necessary. ++ * ++ * Original algorithm: ++ * So we divide before multiply in case it is 32bit and close ++ * to the limit. ++ * We scale the divisor (db) by 32 to avoid losing precision ++ * near the end of resync when the number of remaining sectors ++ * is close to 'db'. ++ * We then divide rt by 32 after multiplying by db to compensate. ++ * The '+1' avoids division by zero if db is very small. + */ + dt = ((jiffies - mddev->resync_mark) / HZ); + if (!dt) dt++; +- db = (mddev->curr_mark_cnt - atomic_read(&mddev->recovery_active)) +- - mddev->resync_mark_cnt; ++ ++ curr_mark_cnt = mddev->curr_mark_cnt; ++ recovery_active = atomic_read(&mddev->recovery_active); ++ resync_mark_cnt = mddev->resync_mark_cnt; ++ ++ if (curr_mark_cnt >= (recovery_active + resync_mark_cnt)) ++ db = curr_mark_cnt - (recovery_active + resync_mark_cnt); + + rt = max_sectors - resync; /* number of remaining sectors */ +- sector_div(rt, db/32+1); ++ rt = div64_u64(rt, db/32+1); + rt *= dt; + rt >>= 5; + +diff --git a/drivers/misc/vmw_vmci/vmci_context.c b/drivers/misc/vmw_vmci/vmci_context.c +index 21d0fa592145..bc089e634a75 100644 +--- a/drivers/misc/vmw_vmci/vmci_context.c ++++ b/drivers/misc/vmw_vmci/vmci_context.c +@@ -29,6 +29,9 @@ + #include "vmci_driver.h" + #include "vmci_event.h" + ++/* Use a wide upper bound for the maximum contexts. */ ++#define VMCI_MAX_CONTEXTS 2000 ++ + /* + * List of current VMCI contexts. Contexts can be added by + * vmci_ctx_create() and removed via vmci_ctx_destroy(). +@@ -125,19 +128,22 @@ struct vmci_ctx *vmci_ctx_create(u32 cid, u32 priv_flags, + /* Initialize host-specific VMCI context. */ + init_waitqueue_head(&context->host_context.wait_queue); + +- context->queue_pair_array = vmci_handle_arr_create(0); ++ context->queue_pair_array = ++ vmci_handle_arr_create(0, VMCI_MAX_GUEST_QP_COUNT); + if (!context->queue_pair_array) { + error = -ENOMEM; + goto err_free_ctx; + } + +- context->doorbell_array = vmci_handle_arr_create(0); ++ context->doorbell_array = ++ vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT); + if (!context->doorbell_array) { + error = -ENOMEM; + goto err_free_qp_array; + } + +- context->pending_doorbell_array = vmci_handle_arr_create(0); ++ context->pending_doorbell_array = ++ vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT); + if (!context->pending_doorbell_array) { + error = -ENOMEM; + goto err_free_db_array; +@@ -212,7 +218,7 @@ static int ctx_fire_notification(u32 context_id, u32 priv_flags) + * We create an array to hold the subscribers we find when + * scanning through all contexts. + */ +- subscriber_array = vmci_handle_arr_create(0); ++ subscriber_array = vmci_handle_arr_create(0, VMCI_MAX_CONTEXTS); + if (subscriber_array == NULL) + return VMCI_ERROR_NO_MEM; + +@@ -631,20 +637,26 @@ int vmci_ctx_add_notification(u32 context_id, u32 remote_cid) + + spin_lock(&context->lock); + +- list_for_each_entry(n, &context->notifier_list, node) { +- if (vmci_handle_is_equal(n->handle, notifier->handle)) { +- exists = true; +- break; ++ if (context->n_notifiers < VMCI_MAX_CONTEXTS) { ++ list_for_each_entry(n, &context->notifier_list, node) { ++ if (vmci_handle_is_equal(n->handle, notifier->handle)) { ++ exists = true; ++ break; ++ } + } +- } + +- if (exists) { +- kfree(notifier); +- result = VMCI_ERROR_ALREADY_EXISTS; ++ if (exists) { ++ kfree(notifier); ++ result = VMCI_ERROR_ALREADY_EXISTS; ++ } else { ++ list_add_tail_rcu(¬ifier->node, ++ &context->notifier_list); ++ context->n_notifiers++; ++ result = VMCI_SUCCESS; ++ } + } else { +- list_add_tail_rcu(¬ifier->node, &context->notifier_list); +- context->n_notifiers++; +- result = VMCI_SUCCESS; ++ kfree(notifier); ++ result = VMCI_ERROR_NO_MEM; + } + + spin_unlock(&context->lock); +@@ -729,8 +741,7 @@ static int vmci_ctx_get_chkpt_doorbells(struct vmci_ctx *context, + u32 *buf_size, void **pbuf) + { + struct dbell_cpt_state *dbells; +- size_t n_doorbells; +- int i; ++ u32 i, n_doorbells; + + n_doorbells = vmci_handle_arr_get_size(context->doorbell_array); + if (n_doorbells > 0) { +@@ -868,7 +879,8 @@ int vmci_ctx_rcv_notifications_get(u32 context_id, + spin_lock(&context->lock); + + *db_handle_array = context->pending_doorbell_array; +- context->pending_doorbell_array = vmci_handle_arr_create(0); ++ context->pending_doorbell_array = ++ vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT); + if (!context->pending_doorbell_array) { + context->pending_doorbell_array = *db_handle_array; + *db_handle_array = NULL; +@@ -950,12 +962,11 @@ int vmci_ctx_dbell_create(u32 context_id, struct vmci_handle handle) + return VMCI_ERROR_NOT_FOUND; + + spin_lock(&context->lock); +- if (!vmci_handle_arr_has_entry(context->doorbell_array, handle)) { +- vmci_handle_arr_append_entry(&context->doorbell_array, handle); +- result = VMCI_SUCCESS; +- } else { ++ if (!vmci_handle_arr_has_entry(context->doorbell_array, handle)) ++ result = vmci_handle_arr_append_entry(&context->doorbell_array, ++ handle); ++ else + result = VMCI_ERROR_DUPLICATE_ENTRY; +- } + + spin_unlock(&context->lock); + vmci_ctx_put(context); +@@ -1091,15 +1102,16 @@ int vmci_ctx_notify_dbell(u32 src_cid, + if (!vmci_handle_arr_has_entry( + dst_context->pending_doorbell_array, + handle)) { +- vmci_handle_arr_append_entry( ++ result = vmci_handle_arr_append_entry( + &dst_context->pending_doorbell_array, + handle); +- +- ctx_signal_notify(dst_context); +- wake_up(&dst_context->host_context.wait_queue); +- ++ if (result == VMCI_SUCCESS) { ++ ctx_signal_notify(dst_context); ++ wake_up(&dst_context->host_context.wait_queue); ++ } ++ } else { ++ result = VMCI_SUCCESS; + } +- result = VMCI_SUCCESS; + } + spin_unlock(&dst_context->lock); + } +@@ -1126,13 +1138,11 @@ int vmci_ctx_qp_create(struct vmci_ctx *context, struct vmci_handle handle) + if (context == NULL || vmci_handle_is_invalid(handle)) + return VMCI_ERROR_INVALID_ARGS; + +- if (!vmci_handle_arr_has_entry(context->queue_pair_array, handle)) { +- vmci_handle_arr_append_entry(&context->queue_pair_array, +- handle); +- result = VMCI_SUCCESS; +- } else { ++ if (!vmci_handle_arr_has_entry(context->queue_pair_array, handle)) ++ result = vmci_handle_arr_append_entry( ++ &context->queue_pair_array, handle); ++ else + result = VMCI_ERROR_DUPLICATE_ENTRY; +- } + + return result; + } +diff --git a/drivers/misc/vmw_vmci/vmci_handle_array.c b/drivers/misc/vmw_vmci/vmci_handle_array.c +index 344973a0fb0a..917e18a8af95 100644 +--- a/drivers/misc/vmw_vmci/vmci_handle_array.c ++++ b/drivers/misc/vmw_vmci/vmci_handle_array.c +@@ -16,24 +16,29 @@ + #include <linux/slab.h> + #include "vmci_handle_array.h" + +-static size_t handle_arr_calc_size(size_t capacity) ++static size_t handle_arr_calc_size(u32 capacity) + { +- return sizeof(struct vmci_handle_arr) + ++ return VMCI_HANDLE_ARRAY_HEADER_SIZE + + capacity * sizeof(struct vmci_handle); + } + +-struct vmci_handle_arr *vmci_handle_arr_create(size_t capacity) ++struct vmci_handle_arr *vmci_handle_arr_create(u32 capacity, u32 max_capacity) + { + struct vmci_handle_arr *array; + ++ if (max_capacity == 0 || capacity > max_capacity) ++ return NULL; ++ + if (capacity == 0) +- capacity = VMCI_HANDLE_ARRAY_DEFAULT_SIZE; ++ capacity = min((u32)VMCI_HANDLE_ARRAY_DEFAULT_CAPACITY, ++ max_capacity); + + array = kmalloc(handle_arr_calc_size(capacity), GFP_ATOMIC); + if (!array) + return NULL; + + array->capacity = capacity; ++ array->max_capacity = max_capacity; + array->size = 0; + + return array; +@@ -44,27 +49,34 @@ void vmci_handle_arr_destroy(struct vmci_handle_arr *array) + kfree(array); + } + +-void vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr, +- struct vmci_handle handle) ++int vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr, ++ struct vmci_handle handle) + { + struct vmci_handle_arr *array = *array_ptr; + + if (unlikely(array->size >= array->capacity)) { + /* reallocate. */ + struct vmci_handle_arr *new_array; +- size_t new_capacity = array->capacity * VMCI_ARR_CAP_MULT; +- size_t new_size = handle_arr_calc_size(new_capacity); ++ u32 capacity_bump = min(array->max_capacity - array->capacity, ++ array->capacity); ++ size_t new_size = handle_arr_calc_size(array->capacity + ++ capacity_bump); ++ ++ if (array->size >= array->max_capacity) ++ return VMCI_ERROR_NO_MEM; + + new_array = krealloc(array, new_size, GFP_ATOMIC); + if (!new_array) +- return; ++ return VMCI_ERROR_NO_MEM; + +- new_array->capacity = new_capacity; ++ new_array->capacity += capacity_bump; + *array_ptr = array = new_array; + } + + array->entries[array->size] = handle; + array->size++; ++ ++ return VMCI_SUCCESS; + } + + /* +@@ -74,7 +86,7 @@ struct vmci_handle vmci_handle_arr_remove_entry(struct vmci_handle_arr *array, + struct vmci_handle entry_handle) + { + struct vmci_handle handle = VMCI_INVALID_HANDLE; +- size_t i; ++ u32 i; + + for (i = 0; i < array->size; i++) { + if (vmci_handle_is_equal(array->entries[i], entry_handle)) { +@@ -109,7 +121,7 @@ struct vmci_handle vmci_handle_arr_remove_tail(struct vmci_handle_arr *array) + * Handle at given index, VMCI_INVALID_HANDLE if invalid index. + */ + struct vmci_handle +-vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index) ++vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, u32 index) + { + if (unlikely(index >= array->size)) + return VMCI_INVALID_HANDLE; +@@ -120,7 +132,7 @@ vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index) + bool vmci_handle_arr_has_entry(const struct vmci_handle_arr *array, + struct vmci_handle entry_handle) + { +- size_t i; ++ u32 i; + + for (i = 0; i < array->size; i++) + if (vmci_handle_is_equal(array->entries[i], entry_handle)) +diff --git a/drivers/misc/vmw_vmci/vmci_handle_array.h b/drivers/misc/vmw_vmci/vmci_handle_array.h +index b5f3a7f98cf1..0fc58597820e 100644 +--- a/drivers/misc/vmw_vmci/vmci_handle_array.h ++++ b/drivers/misc/vmw_vmci/vmci_handle_array.h +@@ -17,32 +17,41 @@ + #define _VMCI_HANDLE_ARRAY_H_ + + #include <linux/vmw_vmci_defs.h> ++#include <linux/limits.h> + #include <linux/types.h> + +-#define VMCI_HANDLE_ARRAY_DEFAULT_SIZE 4 +-#define VMCI_ARR_CAP_MULT 2 /* Array capacity multiplier */ +- + struct vmci_handle_arr { +- size_t capacity; +- size_t size; ++ u32 capacity; ++ u32 max_capacity; ++ u32 size; ++ u32 pad; + struct vmci_handle entries[]; + }; + +-struct vmci_handle_arr *vmci_handle_arr_create(size_t capacity); ++#define VMCI_HANDLE_ARRAY_HEADER_SIZE \ ++ offsetof(struct vmci_handle_arr, entries) ++/* Select a default capacity that results in a 64 byte sized array */ ++#define VMCI_HANDLE_ARRAY_DEFAULT_CAPACITY 6 ++/* Make sure that the max array size can be expressed by a u32 */ ++#define VMCI_HANDLE_ARRAY_MAX_CAPACITY \ ++ ((U32_MAX - VMCI_HANDLE_ARRAY_HEADER_SIZE - 1) / \ ++ sizeof(struct vmci_handle)) ++ ++struct vmci_handle_arr *vmci_handle_arr_create(u32 capacity, u32 max_capacity); + void vmci_handle_arr_destroy(struct vmci_handle_arr *array); +-void vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr, +- struct vmci_handle handle); ++int vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr, ++ struct vmci_handle handle); + struct vmci_handle vmci_handle_arr_remove_entry(struct vmci_handle_arr *array, + struct vmci_handle + entry_handle); + struct vmci_handle vmci_handle_arr_remove_tail(struct vmci_handle_arr *array); + struct vmci_handle +-vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index); ++vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, u32 index); + bool vmci_handle_arr_has_entry(const struct vmci_handle_arr *array, + struct vmci_handle entry_handle); + struct vmci_handle *vmci_handle_arr_get_handles(struct vmci_handle_arr *array); + +-static inline size_t vmci_handle_arr_get_size( ++static inline u32 vmci_handle_arr_get_size( + const struct vmci_handle_arr *array) + { + return array->size; +diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c +index d3ce904e929e..ebad93ac8f11 100644 +--- a/drivers/net/can/m_can/m_can.c ++++ b/drivers/net/can/m_can/m_can.c +@@ -818,6 +818,27 @@ static int m_can_poll(struct napi_struct *napi, int quota) + if (!irqstatus) + goto end; + ++ /* Errata workaround for issue "Needless activation of MRAF irq" ++ * During frame reception while the MCAN is in Error Passive state ++ * and the Receive Error Counter has the value MCAN_ECR.REC = 127, ++ * it may happen that MCAN_IR.MRAF is set although there was no ++ * Message RAM access failure. ++ * If MCAN_IR.MRAF is enabled, an interrupt to the Host CPU is generated ++ * The Message RAM Access Failure interrupt routine needs to check ++ * whether MCAN_ECR.RP = ’1’ and MCAN_ECR.REC = 127. ++ * In this case, reset MCAN_IR.MRAF. No further action is required. ++ */ ++ if ((priv->version <= 31) && (irqstatus & IR_MRAF) && ++ (m_can_read(priv, M_CAN_ECR) & ECR_RP)) { ++ struct can_berr_counter bec; ++ ++ __m_can_get_berr_counter(dev, &bec); ++ if (bec.rxerr == 127) { ++ m_can_write(priv, M_CAN_IR, IR_MRAF); ++ irqstatus &= ~IR_MRAF; ++ } ++ } ++ + psr = m_can_read(priv, M_CAN_PSR); + if (irqstatus & IR_ERR_STATE) + work_done += m_can_handle_state_errors(dev, psr); +diff --git a/drivers/net/can/spi/Kconfig b/drivers/net/can/spi/Kconfig +index 8f2e0dd7b756..792e9c6c4a2f 100644 +--- a/drivers/net/can/spi/Kconfig ++++ b/drivers/net/can/spi/Kconfig +@@ -8,9 +8,10 @@ config CAN_HI311X + Driver for the Holt HI311x SPI CAN controllers. + + config CAN_MCP251X +- tristate "Microchip MCP251x SPI CAN controllers" ++ tristate "Microchip MCP251x and MCP25625 SPI CAN controllers" + depends on HAS_DMA + ---help--- +- Driver for the Microchip MCP251x SPI CAN controllers. ++ Driver for the Microchip MCP251x and MCP25625 SPI CAN ++ controllers. + + endmenu +diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c +index f3f05fea8e1f..d8c448beab24 100644 +--- a/drivers/net/can/spi/mcp251x.c ++++ b/drivers/net/can/spi/mcp251x.c +@@ -1,5 +1,5 @@ + /* +- * CAN bus driver for Microchip 251x CAN Controller with SPI Interface ++ * CAN bus driver for Microchip 251x/25625 CAN Controller with SPI Interface + * + * MCP2510 support and bug fixes by Christian Pellegrin + * <chrip...@evolware.org> +@@ -41,7 +41,7 @@ + * static struct spi_board_info spi_board_info[] = { + * { + * .modalias = "mcp2510", +- * // or "mcp2515" depending on your controller ++ * // "mcp2515" or "mcp25625" depending on your controller + * .platform_data = &mcp251x_info, + * .irq = IRQ_EINT13, + * .max_speed_hz = 2*1000*1000, +@@ -238,6 +238,7 @@ static const struct can_bittiming_const mcp251x_bittiming_const = { + enum mcp251x_model { + CAN_MCP251X_MCP2510 = 0x2510, + CAN_MCP251X_MCP2515 = 0x2515, ++ CAN_MCP251X_MCP25625 = 0x25625, + }; + + struct mcp251x_priv { +@@ -280,7 +281,6 @@ static inline int mcp251x_is_##_model(struct spi_device *spi) \ + } + + MCP251X_IS(2510); +-MCP251X_IS(2515); + + static void mcp251x_clean(struct net_device *net) + { +@@ -640,7 +640,7 @@ static int mcp251x_hw_reset(struct spi_device *spi) + + /* Wait for oscillator startup timer after reset */ + mdelay(MCP251X_OST_DELAY_MS); +- ++ + reg = mcp251x_read_reg(spi, CANSTAT); + if ((reg & CANCTRL_REQOP_MASK) != CANCTRL_REQOP_CONF) + return -ENODEV; +@@ -821,9 +821,8 @@ static irqreturn_t mcp251x_can_ist(int irq, void *dev_id) + /* receive buffer 0 */ + if (intf & CANINTF_RX0IF) { + mcp251x_hw_rx(spi, 0); +- /* +- * Free one buffer ASAP +- * (The MCP2515 does this automatically.) ++ /* Free one buffer ASAP ++ * (The MCP2515/25625 does this automatically.) + */ + if (mcp251x_is_2510(spi)) + mcp251x_write_bits(spi, CANINTF, CANINTF_RX0IF, 0x00); +@@ -832,7 +831,7 @@ static irqreturn_t mcp251x_can_ist(int irq, void *dev_id) + /* receive buffer 1 */ + if (intf & CANINTF_RX1IF) { + mcp251x_hw_rx(spi, 1); +- /* the MCP2515 does this automatically */ ++ /* The MCP2515/25625 does this automatically. */ + if (mcp251x_is_2510(spi)) + clear_intf |= CANINTF_RX1IF; + } +@@ -1007,6 +1006,10 @@ static const struct of_device_id mcp251x_of_match[] = { + .compatible = "microchip,mcp2515", + .data = (void *)CAN_MCP251X_MCP2515, + }, ++ { ++ .compatible = "microchip,mcp25625", ++ .data = (void *)CAN_MCP251X_MCP25625, ++ }, + { } + }; + MODULE_DEVICE_TABLE(of, mcp251x_of_match); +@@ -1020,6 +1023,10 @@ static const struct spi_device_id mcp251x_id_table[] = { + .name = "mcp2515", + .driver_data = (kernel_ulong_t)CAN_MCP251X_MCP2515, + }, ++ { ++ .name = "mcp25625", ++ .driver_data = (kernel_ulong_t)CAN_MCP251X_MCP25625, ++ }, + { } + }; + MODULE_DEVICE_TABLE(spi, mcp251x_id_table); +@@ -1260,5 +1267,5 @@ module_spi_driver(mcp251x_can_driver); + + MODULE_AUTHOR("Chris Elston <cels...@katalix.com>, " + "Christian Pellegrin <chrip...@evolware.org>"); +-MODULE_DESCRIPTION("Microchip 251x CAN driver"); ++MODULE_DESCRIPTION("Microchip 251x/25625 CAN driver"); + MODULE_LICENSE("GPL v2"); +diff --git a/drivers/net/dsa/mv88e6xxx/global1_vtu.c b/drivers/net/dsa/mv88e6xxx/global1_vtu.c +index 8c8a0ec3d6e9..f260bd30c73a 100644 +--- a/drivers/net/dsa/mv88e6xxx/global1_vtu.c ++++ b/drivers/net/dsa/mv88e6xxx/global1_vtu.c +@@ -416,7 +416,7 @@ int mv88e6185_g1_vtu_loadpurge(struct mv88e6xxx_chip *chip, + * VTU DBNum[7:4] are located in VTU Operation 11:8 + */ + op |= entry->fid & 0x000f; +- op |= (entry->fid & 0x00f0) << 8; ++ op |= (entry->fid & 0x00f0) << 4; + } + + return mv88e6xxx_g1_vtu_op(chip, op); +diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +index 3fd1085a093f..65bc1929d1a8 100644 +--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c ++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +@@ -1581,7 +1581,8 @@ static int bnx2x_get_module_info(struct net_device *dev, + } + + if (!sff8472_comp || +- (diag_type & SFP_EEPROM_DIAG_ADDR_CHANGE_REQ)) { ++ (diag_type & SFP_EEPROM_DIAG_ADDR_CHANGE_REQ) || ++ !(diag_type & SFP_EEPROM_DDM_IMPLEMENTED)) { + modinfo->type = ETH_MODULE_SFF_8079; + modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; + } else { +diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h +index b7d251108c19..7115f5025664 100644 +--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h ++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h +@@ -62,6 +62,7 @@ + #define SFP_EEPROM_DIAG_TYPE_ADDR 0x5c + #define SFP_EEPROM_DIAG_TYPE_SIZE 1 + #define SFP_EEPROM_DIAG_ADDR_CHANGE_REQ (1<<2) ++#define SFP_EEPROM_DDM_IMPLEMENTED (1<<6) + #define SFP_EEPROM_SFF_8472_COMP_ADDR 0x5e + #define SFP_EEPROM_SFF_8472_COMP_SIZE 1 + +diff --git a/drivers/net/ethernet/cavium/liquidio/lio_core.c b/drivers/net/ethernet/cavium/liquidio/lio_core.c +index 23f6b60030c5..8c16298a252d 100644 +--- a/drivers/net/ethernet/cavium/liquidio/lio_core.c ++++ b/drivers/net/ethernet/cavium/liquidio/lio_core.c +@@ -854,7 +854,7 @@ static void liquidio_schedule_droq_pkt_handlers(struct octeon_device *oct) + + if (droq->ops.poll_mode) { + droq->ops.napi_fn(droq); +- oct_priv->napi_mask |= (1 << oq_no); ++ oct_priv->napi_mask |= BIT_ULL(oq_no); + } else { + tasklet_schedule(&oct_priv->droq_tasklet); + } +diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c +index 6ce7b8435ace..f66b246acaea 100644 +--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c ++++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c +@@ -893,7 +893,7 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test, + u64 *data) + { + struct be_adapter *adapter = netdev_priv(netdev); +- int status; ++ int status, cnt; + u8 link_status = 0; + + if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) { +@@ -904,6 +904,9 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test, + + memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM); + ++ /* check link status before offline tests */ ++ link_status = netif_carrier_ok(netdev); ++ + if (test->flags & ETH_TEST_FL_OFFLINE) { + if (be_loopback_test(adapter, BE_MAC_LOOPBACK, &data[0]) != 0) + test->flags |= ETH_TEST_FL_FAILED; +@@ -924,13 +927,26 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test, + test->flags |= ETH_TEST_FL_FAILED; + } + +- status = be_cmd_link_status_query(adapter, NULL, &link_status, 0); +- if (status) { +- test->flags |= ETH_TEST_FL_FAILED; +- data[4] = -1; +- } else if (!link_status) { ++ /* link status was down prior to test */ ++ if (!link_status) { + test->flags |= ETH_TEST_FL_FAILED; + data[4] = 1; ++ return; ++ } ++ ++ for (cnt = 10; cnt; cnt--) { ++ status = be_cmd_link_status_query(adapter, NULL, &link_status, ++ 0); ++ if (status) { ++ test->flags |= ETH_TEST_FL_FAILED; ++ data[4] = -1; ++ break; ++ } ++ ++ if (link_status) ++ break; ++ ++ msleep_interruptible(500); + } + } + +diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c +index c914b338691b..956fbb164e6f 100644 +--- a/drivers/net/ethernet/ibm/ibmvnic.c ++++ b/drivers/net/ethernet/ibm/ibmvnic.c +@@ -1489,6 +1489,9 @@ static int do_reset(struct ibmvnic_adapter *adapter, + return 0; + } + ++ /* refresh device's multicast list */ ++ ibmvnic_set_multi(netdev); ++ + /* kick napi */ + for (i = 0; i < adapter->req_rx_queues; i++) + napi_schedule(&adapter->napi[i]); +diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c +index 3c214a47c1c4..1ad345796e80 100644 +--- a/drivers/net/ethernet/intel/e1000e/netdev.c ++++ b/drivers/net/ethernet/intel/e1000e/netdev.c +@@ -4228,7 +4228,7 @@ void e1000e_up(struct e1000_adapter *adapter) + e1000_configure_msix(adapter); + e1000_irq_enable(adapter); + +- netif_start_queue(adapter->netdev); ++ /* Tx queue started by watchdog timer when link is up */ + + e1000e_trigger_lsc(adapter); + } +@@ -4604,6 +4604,7 @@ int e1000e_open(struct net_device *netdev) + pm_runtime_get_sync(&pdev->dev); + + netif_carrier_off(netdev); ++ netif_stop_queue(netdev); + + /* allocate transmit descriptors */ + err = e1000e_setup_tx_resources(adapter->tx_ring); +@@ -4664,7 +4665,6 @@ int e1000e_open(struct net_device *netdev) + e1000_irq_enable(adapter); + + adapter->tx_hang_recheck = false; +- netif_start_queue(netdev); + + hw->mac.get_link_status = true; + pm_runtime_put(&pdev->dev); +@@ -5286,6 +5286,7 @@ static void e1000_watchdog_task(struct work_struct *work) + if (phy->ops.cfg_on_link_up) + phy->ops.cfg_on_link_up(hw); + ++ netif_wake_queue(netdev); + netif_carrier_on(netdev); + + if (!test_bit(__E1000_DOWN, &adapter->state)) +@@ -5299,6 +5300,7 @@ static void e1000_watchdog_task(struct work_struct *work) + /* Link status message must follow this format */ + pr_info("%s NIC Link is Down\n", adapter->netdev->name); + netif_carrier_off(netdev); ++ netif_stop_queue(netdev); + if (!test_bit(__E1000_DOWN, &adapter->state)) + mod_timer(&adapter->phy_info_timer, + round_jiffies(jiffies + 2 * HZ)); +@@ -5306,13 +5308,8 @@ static void e1000_watchdog_task(struct work_struct *work) + /* 8000ES2LAN requires a Rx packet buffer work-around + * on link down event; reset the controller to flush + * the Rx packet buffer. +- * +- * If the link is lost the controller stops DMA, but +- * if there is queued Tx work it cannot be done. So +- * reset the controller to flush the Tx packet buffers. + */ +- if ((adapter->flags & FLAG_RX_NEEDS_RESTART) || +- e1000_desc_unused(tx_ring) + 1 < tx_ring->count) ++ if (adapter->flags & FLAG_RX_NEEDS_RESTART) + adapter->flags |= FLAG_RESTART_NOW; + else + pm_schedule_suspend(netdev->dev.parent, +@@ -5335,6 +5332,14 @@ link_up: + adapter->gotc_old = adapter->stats.gotc; + spin_unlock(&adapter->stats64_lock); + ++ /* If the link is lost the controller stops DMA, but ++ * if there is queued Tx work it cannot be done. So ++ * reset the controller to flush the Tx packet buffers. ++ */ ++ if (!netif_carrier_ok(netdev) && ++ (e1000_desc_unused(tx_ring) + 1 < tx_ring->count)) ++ adapter->flags |= FLAG_RESTART_NOW; ++ + /* If reset is necessary, do it outside of interrupt context. */ + if (adapter->flags & FLAG_RESTART_NOW) { + schedule_work(&adapter->reset_task); +diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h +index 5acfbe5b8b9d..8ab7a4f98a07 100644 +--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h ++++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h +@@ -911,7 +911,7 @@ static inline void mlxsw_reg_spaft_pack(char *payload, u8 local_port, + MLXSW_REG_ZERO(spaft, payload); + mlxsw_reg_spaft_local_port_set(payload, local_port); + mlxsw_reg_spaft_allow_untagged_set(payload, allow_untagged); +- mlxsw_reg_spaft_allow_prio_tagged_set(payload, true); ++ mlxsw_reg_spaft_allow_prio_tagged_set(payload, allow_untagged); + mlxsw_reg_spaft_allow_tagged_set(payload, true); + } + +diff --git a/drivers/net/ethernet/sis/sis900.c b/drivers/net/ethernet/sis/sis900.c +index 40bd88362e3d..693f9582173b 100644 +--- a/drivers/net/ethernet/sis/sis900.c ++++ b/drivers/net/ethernet/sis/sis900.c +@@ -1057,7 +1057,7 @@ sis900_open(struct net_device *net_dev) + sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED); + + /* Enable all known interrupts by setting the interrupt mask. */ +- sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE); ++ sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC); + sw32(cr, RxENA | sr32(cr)); + sw32(ier, IE); + +@@ -1580,7 +1580,7 @@ static void sis900_tx_timeout(struct net_device *net_dev) + sw32(txdp, sis_priv->tx_ring_dma); + + /* Enable all known interrupts by setting the interrupt mask. */ +- sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE); ++ sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC); + } + + /** +@@ -1620,7 +1620,7 @@ sis900_start_xmit(struct sk_buff *skb, struct net_device *net_dev) + spin_unlock_irqrestore(&sis_priv->lock, flags); + return NETDEV_TX_OK; + } +- sis_priv->tx_ring[entry].cmdsts = (OWN | skb->len); ++ sis_priv->tx_ring[entry].cmdsts = (OWN | INTR | skb->len); + sw32(cr, TxENA | sr32(cr)); + + sis_priv->cur_tx ++; +@@ -1676,7 +1676,7 @@ static irqreturn_t sis900_interrupt(int irq, void *dev_instance) + do { + status = sr32(isr); + +- if ((status & (HIBERR|TxURN|TxERR|TxIDLE|RxORN|RxERR|RxOK)) == 0) ++ if ((status & (HIBERR|TxURN|TxERR|TxIDLE|TxDESC|RxORN|RxERR|RxOK)) == 0) + /* nothing intresting happened */ + break; + handled = 1; +@@ -1686,7 +1686,7 @@ static irqreturn_t sis900_interrupt(int irq, void *dev_instance) + /* Rx interrupt */ + sis900_rx(net_dev); + +- if (status & (TxURN | TxERR | TxIDLE)) ++ if (status & (TxURN | TxERR | TxIDLE | TxDESC)) + /* Tx interrupt */ + sis900_finish_xmit(net_dev); + +@@ -1898,8 +1898,8 @@ static void sis900_finish_xmit (struct net_device *net_dev) + + if (tx_status & OWN) { + /* The packet is not transmitted yet (owned by hardware) ! +- * Note: the interrupt is generated only when Tx Machine +- * is idle, so this is an almost impossible case */ ++ * Note: this is an almost impossible condition ++ * in case of TxDESC ('descriptor interrupt') */ + break; + } + +@@ -2475,7 +2475,7 @@ static int sis900_resume(struct pci_dev *pci_dev) + sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED); + + /* Enable all known interrupts by setting the interrupt mask. */ +- sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE); ++ sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC); + sw32(cr, RxENA | sr32(cr)); + sw32(ier, IE); + +diff --git a/drivers/net/ppp/ppp_mppe.c b/drivers/net/ppp/ppp_mppe.c +index 6c7fd98cb00a..d9eda7c217e9 100644 +--- a/drivers/net/ppp/ppp_mppe.c ++++ b/drivers/net/ppp/ppp_mppe.c +@@ -63,6 +63,7 @@ MODULE_AUTHOR("Frank Cusack <fcus...@fcusack.com>"); + MODULE_DESCRIPTION("Point-to-Point Protocol Microsoft Point-to-Point Encryption support"); + MODULE_LICENSE("Dual BSD/GPL"); + MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE)); ++MODULE_SOFTDEP("pre: arc4"); + MODULE_VERSION("1.0.2"); + + static unsigned int +diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c +index 063daa3435e4..4b0144b2a252 100644 +--- a/drivers/net/usb/qmi_wwan.c ++++ b/drivers/net/usb/qmi_wwan.c +@@ -153,7 +153,7 @@ static bool qmimux_has_slaves(struct usbnet *dev) + + static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) + { +- unsigned int len, offset = 0; ++ unsigned int len, offset = 0, pad_len, pkt_len; + struct qmimux_hdr *hdr; + struct net_device *net; + struct sk_buff *skbn; +@@ -171,10 +171,16 @@ static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) + if (hdr->pad & 0x80) + goto skip; + ++ /* extract padding length and check for valid length info */ ++ pad_len = hdr->pad & 0x3f; ++ if (len == 0 || pad_len >= len) ++ goto skip; ++ pkt_len = len - pad_len; ++ + net = qmimux_find_dev(dev, hdr->mux_id); + if (!net) + goto skip; +- skbn = netdev_alloc_skb(net, len); ++ skbn = netdev_alloc_skb(net, pkt_len); + if (!skbn) + return 0; + skbn->dev = net; +@@ -191,7 +197,7 @@ static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) + goto skip; + } + +- skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, len); ++ skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, pkt_len); + if (netif_rx(skbn) != NET_RX_SUCCESS) + return 0; + +@@ -241,13 +247,14 @@ out_free_newdev: + return err; + } + +-static void qmimux_unregister_device(struct net_device *dev) ++static void qmimux_unregister_device(struct net_device *dev, ++ struct list_head *head) + { + struct qmimux_priv *priv = netdev_priv(dev); + struct net_device *real_dev = priv->real_dev; + + netdev_upper_dev_unlink(real_dev, dev); +- unregister_netdevice(dev); ++ unregister_netdevice_queue(dev, head); + + /* Get rid of the reference to real_dev */ + dev_put(real_dev); +@@ -356,8 +363,8 @@ static ssize_t add_mux_store(struct device *d, struct device_attribute *attr, c + if (kstrtou8(buf, 0, &mux_id)) + return -EINVAL; + +- /* mux_id [1 - 0x7f] range empirically found */ +- if (mux_id < 1 || mux_id > 0x7f) ++ /* mux_id [1 - 254] for compatibility with ip(8) and the rmnet driver */ ++ if (mux_id < 1 || mux_id > 254) + return -EINVAL; + + if (!rtnl_trylock()) +@@ -418,7 +425,7 @@ static ssize_t del_mux_store(struct device *d, struct device_attribute *attr, c + ret = -EINVAL; + goto err; + } +- qmimux_unregister_device(del_dev); ++ qmimux_unregister_device(del_dev, NULL); + + if (!qmimux_has_slaves(dev)) + info->flags &= ~QMI_WWAN_FLAG_MUX; +@@ -1417,6 +1424,7 @@ static void qmi_wwan_disconnect(struct usb_interface *intf) + struct qmi_wwan_state *info; + struct list_head *iter; + struct net_device *ldev; ++ LIST_HEAD(list); + + /* called twice if separate control and data intf */ + if (!dev) +@@ -1429,8 +1437,9 @@ static void qmi_wwan_disconnect(struct usb_interface *intf) + } + rcu_read_lock(); + netdev_for_each_upper_dev_rcu(dev->net, ldev, iter) +- qmimux_unregister_device(ldev); ++ qmimux_unregister_device(ldev, &list); + rcu_read_unlock(); ++ unregister_netdevice_many(&list); + rtnl_unlock(); + info->flags &= ~QMI_WWAN_FLAG_MUX; + } +diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c +index e7c3f3b8457d..99f1897a775d 100644 +--- a/drivers/net/wireless/ath/carl9170/usb.c ++++ b/drivers/net/wireless/ath/carl9170/usb.c +@@ -128,6 +128,8 @@ static const struct usb_device_id carl9170_usb_ids[] = { + }; + MODULE_DEVICE_TABLE(usb, carl9170_usb_ids); + ++static struct usb_driver carl9170_driver; ++ + static void carl9170_usb_submit_data_urb(struct ar9170 *ar) + { + struct urb *urb; +@@ -966,32 +968,28 @@ err_out: + + static void carl9170_usb_firmware_failed(struct ar9170 *ar) + { +- struct device *parent = ar->udev->dev.parent; +- struct usb_device *udev; +- +- /* +- * Store a copy of the usb_device pointer locally. +- * This is because device_release_driver initiates +- * carl9170_usb_disconnect, which in turn frees our +- * driver context (ar). ++ /* Store a copies of the usb_interface and usb_device pointer locally. ++ * This is because release_driver initiates carl9170_usb_disconnect, ++ * which in turn frees our driver context (ar). + */ +- udev = ar->udev; ++ struct usb_interface *intf = ar->intf; ++ struct usb_device *udev = ar->udev; + + complete(&ar->fw_load_wait); ++ /* at this point 'ar' could be already freed. Don't use it anymore */ ++ ar = NULL; + + /* unbind anything failed */ +- if (parent) +- device_lock(parent); +- +- device_release_driver(&udev->dev); +- if (parent) +- device_unlock(parent); ++ usb_lock_device(udev); ++ usb_driver_release_interface(&carl9170_driver, intf); ++ usb_unlock_device(udev); + +- usb_put_dev(udev); ++ usb_put_intf(intf); + } + + static void carl9170_usb_firmware_finish(struct ar9170 *ar) + { ++ struct usb_interface *intf = ar->intf; + int err; + + err = carl9170_parse_firmware(ar); +@@ -1009,7 +1007,7 @@ static void carl9170_usb_firmware_finish(struct ar9170 *ar) + goto err_unrx; + + complete(&ar->fw_load_wait); +- usb_put_dev(ar->udev); ++ usb_put_intf(intf); + return; + + err_unrx: +@@ -1052,7 +1050,6 @@ static int carl9170_usb_probe(struct usb_interface *intf, + return PTR_ERR(ar); + + udev = interface_to_usbdev(intf); +- usb_get_dev(udev); + ar->udev = udev; + ar->intf = intf; + ar->features = id->driver_info; +@@ -1094,15 +1091,14 @@ static int carl9170_usb_probe(struct usb_interface *intf, + atomic_set(&ar->rx_anch_urbs, 0); + atomic_set(&ar->rx_pool_urbs, 0); + +- usb_get_dev(ar->udev); ++ usb_get_intf(intf); + + carl9170_set_state(ar, CARL9170_STOPPED); + + err = request_firmware_nowait(THIS_MODULE, 1, CARL9170FW_NAME, + &ar->udev->dev, GFP_KERNEL, ar, carl9170_usb_firmware_step2); + if (err) { +- usb_put_dev(udev); +- usb_put_dev(udev); ++ usb_put_intf(intf); + carl9170_free(ar); + } + return err; +@@ -1131,7 +1127,6 @@ static void carl9170_usb_disconnect(struct usb_interface *intf) + + carl9170_release_firmware(ar); + carl9170_free(ar); +- usb_put_dev(udev); + } + + #ifdef CONFIG_PM +diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +index 99676d6c4713..6c10b8c4ddbe 100644 +--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c ++++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +@@ -1509,7 +1509,6 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) + goto free; + + out_free_fw: +- iwl_dealloc_ucode(drv); + release_firmware(ucode_raw); + out_unbind: + complete(&drv->request_firmware_complete); +diff --git a/drivers/net/wireless/intersil/p54/p54usb.c b/drivers/net/wireless/intersil/p54/p54usb.c +index b0b86f701061..15661da6eedc 100644 +--- a/drivers/net/wireless/intersil/p54/p54usb.c ++++ b/drivers/net/wireless/intersil/p54/p54usb.c +@@ -33,6 +33,8 @@ MODULE_ALIAS("prism54usb"); + MODULE_FIRMWARE("isl3886usb"); + MODULE_FIRMWARE("isl3887usb"); + ++static struct usb_driver p54u_driver; ++ + /* + * Note: + * +@@ -921,9 +923,9 @@ static void p54u_load_firmware_cb(const struct firmware *firmware, + { + struct p54u_priv *priv = context; + struct usb_device *udev = priv->udev; ++ struct usb_interface *intf = priv->intf; + int err; + +- complete(&priv->fw_wait_load); + if (firmware) { + priv->fw = firmware; + err = p54u_start_ops(priv); +@@ -932,26 +934,22 @@ static void p54u_load_firmware_cb(const struct firmware *firmware, + dev_err(&udev->dev, "Firmware not found.\n"); + } + +- if (err) { +- struct device *parent = priv->udev->dev.parent; +- +- dev_err(&udev->dev, "failed to initialize device (%d)\n", err); +- +- if (parent) +- device_lock(parent); ++ complete(&priv->fw_wait_load); ++ /* ++ * At this point p54u_disconnect may have already freed ++ * the "priv" context. Do not use it anymore! ++ */ ++ priv = NULL; + +- device_release_driver(&udev->dev); +- /* +- * At this point p54u_disconnect has already freed +- * the "priv" context. Do not use it anymore! +- */ +- priv = NULL; ++ if (err) { ++ dev_err(&intf->dev, "failed to initialize device (%d)\n", err); + +- if (parent) +- device_unlock(parent); ++ usb_lock_device(udev); ++ usb_driver_release_interface(&p54u_driver, intf); ++ usb_unlock_device(udev); + } + +- usb_put_dev(udev); ++ usb_put_intf(intf); + } + + static int p54u_load_firmware(struct ieee80211_hw *dev, +@@ -972,14 +970,14 @@ static int p54u_load_firmware(struct ieee80211_hw *dev, + dev_info(&priv->udev->dev, "Loading firmware file %s\n", + p54u_fwlist[i].fw); + +- usb_get_dev(udev); ++ usb_get_intf(intf); + err = request_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw, + device, GFP_KERNEL, priv, + p54u_load_firmware_cb); + if (err) { + dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s " + "(%d)!\n", p54u_fwlist[i].fw, err); +- usb_put_dev(udev); ++ usb_put_intf(intf); + } + + return err; +@@ -1011,8 +1009,6 @@ static int p54u_probe(struct usb_interface *intf, + skb_queue_head_init(&priv->rx_queue); + init_usb_anchor(&priv->submitted); + +- usb_get_dev(udev); +- + /* really lazy and simple way of figuring out if we're a 3887 */ + /* TODO: should just stick the identification in the device table */ + i = intf->altsetting->desc.bNumEndpoints; +@@ -1053,10 +1049,8 @@ static int p54u_probe(struct usb_interface *intf, + priv->upload_fw = p54u_upload_firmware_net2280; + } + err = p54u_load_firmware(dev, intf); +- if (err) { +- usb_put_dev(udev); ++ if (err) + p54_free_common(dev); +- } + return err; + } + +@@ -1072,7 +1066,6 @@ static void p54u_disconnect(struct usb_interface *intf) + wait_for_completion(&priv->fw_wait_load); + p54_unregister_common(dev); + +- usb_put_dev(interface_to_usbdev(intf)); + release_firmware(priv->fw); + p54_free_common(dev); + } +diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h +index 9e75522d248a..342555ebafd7 100644 +--- a/drivers/net/wireless/marvell/mwifiex/fw.h ++++ b/drivers/net/wireless/marvell/mwifiex/fw.h +@@ -1744,9 +1744,10 @@ struct mwifiex_ie_types_wmm_queue_status { + struct ieee_types_vendor_header { + u8 element_id; + u8 len; +- u8 oui[4]; /* 0~2: oui, 3: oui_type */ +- u8 oui_subtype; +- u8 version; ++ struct { ++ u8 oui[3]; ++ u8 oui_type; ++ } __packed oui; + } __packed; + + struct ieee_types_wmm_parameter { +@@ -1760,6 +1761,9 @@ struct ieee_types_wmm_parameter { + * Version [1] + */ + struct ieee_types_vendor_header vend_hdr; ++ u8 oui_subtype; ++ u8 version; ++ + u8 qos_info_bitmap; + u8 reserved; + struct ieee_types_wmm_ac_parameters ac_params[IEEE80211_NUM_ACS]; +@@ -1777,6 +1781,8 @@ struct ieee_types_wmm_info { + * Version [1] + */ + struct ieee_types_vendor_header vend_hdr; ++ u8 oui_subtype; ++ u8 version; + + u8 qos_info_bitmap; + } __packed; +diff --git a/drivers/net/wireless/marvell/mwifiex/ie.c b/drivers/net/wireless/marvell/mwifiex/ie.c +index 922e3d69fd84..32853496fe8c 100644 +--- a/drivers/net/wireless/marvell/mwifiex/ie.c ++++ b/drivers/net/wireless/marvell/mwifiex/ie.c +@@ -329,6 +329,8 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv, + struct ieee80211_vendor_ie *vendorhdr; + u16 gen_idx = MWIFIEX_AUTO_IDX_MASK, ie_len = 0; + int left_len, parsed_len = 0; ++ unsigned int token_len; ++ int err = 0; + + if (!info->tail || !info->tail_len) + return 0; +@@ -344,6 +346,12 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv, + */ + while (left_len > sizeof(struct ieee_types_header)) { + hdr = (void *)(info->tail + parsed_len); ++ token_len = hdr->len + sizeof(struct ieee_types_header); ++ if (token_len > left_len) { ++ err = -EINVAL; ++ goto out; ++ } ++ + switch (hdr->element_id) { + case WLAN_EID_SSID: + case WLAN_EID_SUPP_RATES: +@@ -357,13 +365,16 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv, + case WLAN_EID_VENDOR_SPECIFIC: + break; + default: +- memcpy(gen_ie->ie_buffer + ie_len, hdr, +- hdr->len + sizeof(struct ieee_types_header)); +- ie_len += hdr->len + sizeof(struct ieee_types_header); ++ if (ie_len + token_len > IEEE_MAX_IE_SIZE) { ++ err = -EINVAL; ++ goto out; ++ } ++ memcpy(gen_ie->ie_buffer + ie_len, hdr, token_len); ++ ie_len += token_len; + break; + } +- left_len -= hdr->len + sizeof(struct ieee_types_header); +- parsed_len += hdr->len + sizeof(struct ieee_types_header); ++ left_len -= token_len; ++ parsed_len += token_len; + } + + /* parse only WPA vendor IE from tail, WMM IE is configured by +@@ -373,15 +384,17 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv, + WLAN_OUI_TYPE_MICROSOFT_WPA, + info->tail, info->tail_len); + if (vendorhdr) { +- memcpy(gen_ie->ie_buffer + ie_len, vendorhdr, +- vendorhdr->len + sizeof(struct ieee_types_header)); +- ie_len += vendorhdr->len + sizeof(struct ieee_types_header); ++ token_len = vendorhdr->len + sizeof(struct ieee_types_header); ++ if (ie_len + token_len > IEEE_MAX_IE_SIZE) { ++ err = -EINVAL; ++ goto out; ++ } ++ memcpy(gen_ie->ie_buffer + ie_len, vendorhdr, token_len); ++ ie_len += token_len; + } + +- if (!ie_len) { +- kfree(gen_ie); +- return 0; +- } ++ if (!ie_len) ++ goto out; + + gen_ie->ie_index = cpu_to_le16(gen_idx); + gen_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_BEACON | +@@ -391,13 +404,15 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv, + + if (mwifiex_update_uap_custom_ie(priv, gen_ie, &gen_idx, NULL, NULL, + NULL, NULL)) { +- kfree(gen_ie); +- return -1; ++ err = -EINVAL; ++ goto out; + } + + priv->gen_idx = gen_idx; ++ ++ out: + kfree(gen_ie); +- return 0; ++ return err; + } + + /* This function parses different IEs-head & tail IEs, beacon IEs, +diff --git a/drivers/net/wireless/marvell/mwifiex/scan.c b/drivers/net/wireless/marvell/mwifiex/scan.c +index c9d41ed77fc7..29284f9a0646 100644 +--- a/drivers/net/wireless/marvell/mwifiex/scan.c ++++ b/drivers/net/wireless/marvell/mwifiex/scan.c +@@ -1244,6 +1244,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter, + } + switch (element_id) { + case WLAN_EID_SSID: ++ if (element_len > IEEE80211_MAX_SSID_LEN) ++ return -EINVAL; + bss_entry->ssid.ssid_len = element_len; + memcpy(bss_entry->ssid.ssid, (current_ptr + 2), + element_len); +@@ -1253,6 +1255,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter, + break; + + case WLAN_EID_SUPP_RATES: ++ if (element_len > MWIFIEX_SUPPORTED_RATES) ++ return -EINVAL; + memcpy(bss_entry->data_rates, current_ptr + 2, + element_len); + memcpy(bss_entry->supported_rates, current_ptr + 2, +@@ -1262,6 +1266,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter, + break; + + case WLAN_EID_FH_PARAMS: ++ if (element_len + 2 < sizeof(*fh_param_set)) ++ return -EINVAL; + fh_param_set = + (struct ieee_types_fh_param_set *) current_ptr; + memcpy(&bss_entry->phy_param_set.fh_param_set, +@@ -1270,6 +1276,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter, + break; + + case WLAN_EID_DS_PARAMS: ++ if (element_len + 2 < sizeof(*ds_param_set)) ++ return -EINVAL; + ds_param_set = + (struct ieee_types_ds_param_set *) current_ptr; + +@@ -1281,6 +1289,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter, + break; + + case WLAN_EID_CF_PARAMS: ++ if (element_len + 2 < sizeof(*cf_param_set)) ++ return -EINVAL; + cf_param_set = + (struct ieee_types_cf_param_set *) current_ptr; + memcpy(&bss_entry->ss_param_set.cf_param_set, +@@ -1289,6 +1299,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter, + break; + + case WLAN_EID_IBSS_PARAMS: ++ if (element_len + 2 < sizeof(*ibss_param_set)) ++ return -EINVAL; + ibss_param_set = + (struct ieee_types_ibss_param_set *) + current_ptr; +@@ -1298,10 +1310,14 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter, + break; + + case WLAN_EID_ERP_INFO: ++ if (!element_len) ++ return -EINVAL; + bss_entry->erp_flags = *(current_ptr + 2); + break; + + case WLAN_EID_PWR_CONSTRAINT: ++ if (!element_len) ++ return -EINVAL; + bss_entry->local_constraint = *(current_ptr + 2); + bss_entry->sensed_11h = true; + break; +@@ -1344,15 +1360,22 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter, + vendor_ie = (struct ieee_types_vendor_specific *) + current_ptr; + +- if (!memcmp +- (vendor_ie->vend_hdr.oui, wpa_oui, +- sizeof(wpa_oui))) { ++ /* 802.11 requires at least 3-byte OUI. */ ++ if (element_len < sizeof(vendor_ie->vend_hdr.oui.oui)) ++ return -EINVAL; ++ ++ /* Not long enough for a match? Skip it. */ ++ if (element_len < sizeof(wpa_oui)) ++ break; ++ ++ if (!memcmp(&vendor_ie->vend_hdr.oui, wpa_oui, ++ sizeof(wpa_oui))) { + bss_entry->bcn_wpa_ie = + (struct ieee_types_vendor_specific *) + current_ptr; + bss_entry->wpa_offset = (u16) + (current_ptr - bss_entry->beacon_buf); +- } else if (!memcmp(vendor_ie->vend_hdr.oui, wmm_oui, ++ } else if (!memcmp(&vendor_ie->vend_hdr.oui, wmm_oui, + sizeof(wmm_oui))) { + if (total_ie_len == + sizeof(struct ieee_types_wmm_parameter) || +diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c +index a6077ab3efc3..82828a207963 100644 +--- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c ++++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c +@@ -1388,7 +1388,7 @@ mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr, + /* Test to see if it is a WPA IE, if not, then + * it is a gen IE + */ +- if (!memcmp(pvendor_ie->oui, wpa_oui, ++ if (!memcmp(&pvendor_ie->oui, wpa_oui, + sizeof(wpa_oui))) { + /* IE is a WPA/WPA2 IE so call set_wpa function + */ +@@ -1398,7 +1398,7 @@ mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr, + goto next_ie; + } + +- if (!memcmp(pvendor_ie->oui, wps_oui, ++ if (!memcmp(&pvendor_ie->oui, wps_oui, + sizeof(wps_oui))) { + /* Test to see if it is a WPS IE, + * if so, enable wps session flag +diff --git a/drivers/net/wireless/marvell/mwifiex/wmm.c b/drivers/net/wireless/marvell/mwifiex/wmm.c +index 0edd26881321..7fba4d940131 100644 +--- a/drivers/net/wireless/marvell/mwifiex/wmm.c ++++ b/drivers/net/wireless/marvell/mwifiex/wmm.c +@@ -240,7 +240,7 @@ mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv, + mwifiex_dbg(priv->adapter, INFO, + "info: WMM Parameter IE: version=%d,\t" + "qos_info Parameter Set Count=%d, Reserved=%#x\n", +- wmm_ie->vend_hdr.version, wmm_ie->qos_info_bitmap & ++ wmm_ie->version, wmm_ie->qos_info_bitmap & + IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK, + wmm_ie->reserved); + +diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c +index 35286907c636..d0090c5c88e7 100644 +--- a/drivers/s390/cio/qdio_setup.c ++++ b/drivers/s390/cio/qdio_setup.c +@@ -150,6 +150,7 @@ static int __qdio_allocate_qs(struct qdio_q **irq_ptr_qs, int nr_queues) + return -ENOMEM; + } + irq_ptr_qs[i] = q; ++ INIT_LIST_HEAD(&q->entry); + } + return 0; + } +@@ -178,6 +179,7 @@ static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr, + q->mask = 1 << (31 - i); + q->nr = i; + q->handler = handler; ++ INIT_LIST_HEAD(&q->entry); + } + + static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr, +diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c +index a739bdf9630e..831a3a0a2837 100644 +--- a/drivers/s390/cio/qdio_thinint.c ++++ b/drivers/s390/cio/qdio_thinint.c +@@ -83,7 +83,6 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr) + mutex_lock(&tiq_list_lock); + list_add_rcu(&irq_ptr->input_qs[0]->entry, &tiq_list); + mutex_unlock(&tiq_list_lock); +- xchg(irq_ptr->dsci, 1 << 7); + } + + void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr) +@@ -91,14 +90,14 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr) + struct qdio_q *q; + + q = irq_ptr->input_qs[0]; +- /* if establish triggered an error */ +- if (!q || !q->entry.prev || !q->entry.next) ++ if (!q) + return; + + mutex_lock(&tiq_list_lock); + list_del_rcu(&q->entry); + mutex_unlock(&tiq_list_lock); + synchronize_rcu(); ++ INIT_LIST_HEAD(&q->entry); + } + + static inline int has_multiple_inq_on_dsci(struct qdio_irq *irq_ptr) +diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c +index 48c7890c3007..2b0b757dc626 100644 +--- a/drivers/staging/comedi/drivers/amplc_pci230.c ++++ b/drivers/staging/comedi/drivers/amplc_pci230.c +@@ -2339,7 +2339,8 @@ static irqreturn_t pci230_interrupt(int irq, void *d) + devpriv->intr_running = false; + spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags); + +- comedi_handle_events(dev, s_ao); ++ if (s_ao) ++ comedi_handle_events(dev, s_ao); + comedi_handle_events(dev, s_ai); + + return IRQ_HANDLED; +diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c +index d5295bbdd28c..37133d54dda1 100644 +--- a/drivers/staging/comedi/drivers/dt282x.c ++++ b/drivers/staging/comedi/drivers/dt282x.c +@@ -566,7 +566,8 @@ static irqreturn_t dt282x_interrupt(int irq, void *d) + } + #endif + comedi_handle_events(dev, s); +- comedi_handle_events(dev, s_ao); ++ if (s_ao) ++ comedi_handle_events(dev, s_ao); + + return IRQ_RETVAL(handled); + } +diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c +index a6f249e9c1e1..4d218d554878 100644 +--- a/drivers/staging/iio/cdc/ad7150.c ++++ b/drivers/staging/iio/cdc/ad7150.c +@@ -6,6 +6,7 @@ + * Licensed under the GPL-2 or later. + */ + ++#include <linux/bitfield.h> + #include <linux/interrupt.h> + #include <linux/device.h> + #include <linux/kernel.h> +@@ -129,7 +130,7 @@ static int ad7150_read_event_config(struct iio_dev *indio_dev, + { + int ret; + u8 threshtype; +- bool adaptive; ++ bool thrfixed; + struct ad7150_chip_info *chip = iio_priv(indio_dev); + + ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG); +@@ -137,21 +138,23 @@ static int ad7150_read_event_config(struct iio_dev *indio_dev, + return ret; + + threshtype = (ret >> 5) & 0x03; +- adaptive = !!(ret & 0x80); ++ ++ /*check if threshold mode is fixed or adaptive*/ ++ thrfixed = FIELD_GET(AD7150_CFG_FIX, ret); + + switch (type) { + case IIO_EV_TYPE_MAG_ADAPTIVE: + if (dir == IIO_EV_DIR_RISING) +- return adaptive && (threshtype == 0x1); +- return adaptive && (threshtype == 0x0); ++ return !thrfixed && (threshtype == 0x1); ++ return !thrfixed && (threshtype == 0x0); + case IIO_EV_TYPE_THRESH_ADAPTIVE: + if (dir == IIO_EV_DIR_RISING) +- return adaptive && (threshtype == 0x3); +- return adaptive && (threshtype == 0x2); ++ return !thrfixed && (threshtype == 0x3); ++ return !thrfixed && (threshtype == 0x2); + case IIO_EV_TYPE_THRESH: + if (dir == IIO_EV_DIR_RISING) +- return !adaptive && (threshtype == 0x1); +- return !adaptive && (threshtype == 0x0); ++ return thrfixed && (threshtype == 0x1); ++ return thrfixed && (threshtype == 0x0); + default: + break; + } +diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c +index ecf3d631bc09..ab0796d14ac1 100644 +--- a/drivers/tty/serial/8250/8250_port.c ++++ b/drivers/tty/serial/8250/8250_port.c +@@ -1873,8 +1873,7 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir) + + status = serial_port_in(port, UART_LSR); + +- if (status & (UART_LSR_DR | UART_LSR_BI) && +- iir & UART_IIR_RDI) { ++ if (status & (UART_LSR_DR | UART_LSR_BI)) { + if (!up->dma || handle_rx_dma(up, iir)) + status = serial8250_rx_chars(up, status); + } +diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c +index 3a0e4f5d7b83..81d84e0c3c6c 100644 +--- a/drivers/usb/gadget/function/u_ether.c ++++ b/drivers/usb/gadget/function/u_ether.c +@@ -190,11 +190,12 @@ rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags) + out = dev->port_usb->out_ep; + else + out = NULL; +- spin_unlock_irqrestore(&dev->lock, flags); + + if (!out) ++ { ++ spin_unlock_irqrestore(&dev->lock, flags); + return -ENOTCONN; +- ++ } + + /* Padding up to RX_EXTRA handles minor disagreements with host. + * Normally we use the USB "terminate on short read" convention; +@@ -218,6 +219,7 @@ rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags) + + if (dev->port_usb->is_fixed) + size = max_t(size_t, size, dev->port_usb->fixed_out_len); ++ spin_unlock_irqrestore(&dev->lock, flags); + + skb = __netdev_alloc_skb(dev->net, size + NET_IP_ALIGN, gfp_flags); + if (skb == NULL) { +diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c +index 5d369b38868a..b6d9308d43ba 100644 +--- a/drivers/usb/renesas_usbhs/fifo.c ++++ b/drivers/usb/renesas_usbhs/fifo.c +@@ -818,9 +818,8 @@ static int __usbhsf_dma_map_ctrl(struct usbhs_pkt *pkt, int map) + } + + static void usbhsf_dma_complete(void *arg); +-static void xfer_work(struct work_struct *work) ++static void usbhsf_dma_xfer_preparing(struct usbhs_pkt *pkt) + { +- struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work); + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhs_fifo *fifo; + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); +@@ -828,12 +827,10 @@ static void xfer_work(struct work_struct *work) + struct dma_chan *chan; + struct device *dev = usbhs_priv_to_dev(priv); + enum dma_transfer_direction dir; +- unsigned long flags; + +- usbhs_lock(priv, flags); + fifo = usbhs_pipe_to_fifo(pipe); + if (!fifo) +- goto xfer_work_end; ++ return; + + chan = usbhsf_dma_chan_get(fifo, pkt); + dir = usbhs_pipe_is_dir_in(pipe) ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV; +@@ -842,7 +839,7 @@ static void xfer_work(struct work_struct *work) + pkt->trans, dir, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + if (!desc) +- goto xfer_work_end; ++ return; + + desc->callback = usbhsf_dma_complete; + desc->callback_param = pipe; +@@ -850,7 +847,7 @@ static void xfer_work(struct work_struct *work) + pkt->cookie = dmaengine_submit(desc); + if (pkt->cookie < 0) { + dev_err(dev, "Failed to submit dma descriptor\n"); +- goto xfer_work_end; ++ return; + } + + dev_dbg(dev, " %s %d (%d/ %d)\n", +@@ -861,8 +858,17 @@ static void xfer_work(struct work_struct *work) + dma_async_issue_pending(chan); + usbhsf_dma_start(pipe, fifo); + usbhs_pipe_enable(pipe); ++} ++ ++static void xfer_work(struct work_struct *work) ++{ ++ struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work); ++ struct usbhs_pipe *pipe = pkt->pipe; ++ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); ++ unsigned long flags; + +-xfer_work_end: ++ usbhs_lock(priv, flags); ++ usbhsf_dma_xfer_preparing(pkt); + usbhs_unlock(priv, flags); + } + +@@ -915,8 +921,13 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done) + pkt->trans = len; + + usbhsf_tx_irq_ctrl(pipe, 0); +- INIT_WORK(&pkt->work, xfer_work); +- schedule_work(&pkt->work); ++ /* FIXME: Workaound for usb dmac that driver can be used in atomic */ ++ if (usbhs_get_dparam(priv, has_usb_dmac)) { ++ usbhsf_dma_xfer_preparing(pkt); ++ } else { ++ INIT_WORK(&pkt->work, xfer_work); ++ schedule_work(&pkt->work); ++ } + + return 0; + +@@ -1022,8 +1033,7 @@ static int usbhsf_dma_prepare_pop_with_usb_dmac(struct usbhs_pkt *pkt, + + pkt->trans = pkt->length; + +- INIT_WORK(&pkt->work, xfer_work); +- schedule_work(&pkt->work); ++ usbhsf_dma_xfer_preparing(pkt); + + return 0; + +diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c +index e76395d7f17d..d2349c094767 100644 +--- a/drivers/usb/serial/ftdi_sio.c ++++ b/drivers/usb/serial/ftdi_sio.c +@@ -1024,6 +1024,7 @@ static const struct usb_device_id id_table_combined[] = { + { USB_DEVICE(AIRBUS_DS_VID, AIRBUS_DS_P8GR) }, + /* EZPrototypes devices */ + { USB_DEVICE(EZPROTOTYPES_VID, HJELMSLUND_USB485_ISO_PID) }, ++ { USB_DEVICE_INTERFACE_NUMBER(UNJO_VID, UNJO_ISODEBUG_V1_PID, 1) }, + { } /* Terminating entry */ + }; + +diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h +index 5755f0df0025..f12d806220b4 100644 +--- a/drivers/usb/serial/ftdi_sio_ids.h ++++ b/drivers/usb/serial/ftdi_sio_ids.h +@@ -1543,3 +1543,9 @@ + #define CHETCO_SEASMART_DISPLAY_PID 0xA5AD /* SeaSmart NMEA2000 Display */ + #define CHETCO_SEASMART_LITE_PID 0xA5AE /* SeaSmart Lite USB Adapter */ + #define CHETCO_SEASMART_ANALOG_PID 0xA5AF /* SeaSmart Analog Adapter */ ++ ++/* ++ * Unjo AB ++ */ ++#define UNJO_VID 0x22B7 ++#define UNJO_ISODEBUG_V1_PID 0x150D +diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c +index 3c8e4970876c..8b9e12ab1fe6 100644 +--- a/drivers/usb/serial/option.c ++++ b/drivers/usb/serial/option.c +@@ -1346,6 +1346,7 @@ static const struct usb_device_id option_ids[] = { + .driver_info = RSVD(4) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) }, ++ { USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0601, 0xff) }, /* GosunCn ZTE WeLink ME3630 (RNDIS mode) */ + { USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0602, 0xff) }, /* GosunCn ZTE WeLink ME3630 (MBIM mode) */ + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff), + .driver_info = RSVD(4) }, +diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c +index a120649beeca..d13a154c8424 100644 +--- a/fs/crypto/policy.c ++++ b/fs/crypto/policy.c +@@ -81,6 +81,8 @@ int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg) + if (ret == -ENODATA) { + if (!S_ISDIR(inode->i_mode)) + ret = -ENOTDIR; ++ else if (IS_DEADDIR(inode)) ++ ret = -ENOENT; + else if (!inode->i_sb->s_cop->empty_dir(inode)) + ret = -ENOTEMPTY; + else +diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c +index 4cd0c2336624..9c81fd973418 100644 +--- a/fs/quota/dquot.c ++++ b/fs/quota/dquot.c +@@ -1989,8 +1989,8 @@ int __dquot_transfer(struct inode *inode, struct dquot **transfer_to) + &warn_to[cnt]); + if (ret) + goto over_quota; +- ret = dquot_add_space(transfer_to[cnt], cur_space, rsv_space, 0, +- &warn_to[cnt]); ++ ret = dquot_add_space(transfer_to[cnt], cur_space, rsv_space, ++ DQUOT_SPACE_WARN, &warn_to[cnt]); + if (ret) { + spin_lock(&transfer_to[cnt]->dq_dqb_lock); + dquot_decr_inodes(transfer_to[cnt], inode_usage); +diff --git a/fs/udf/inode.c b/fs/udf/inode.c +index 28b9d7cca29b..3c1b54091d6c 100644 +--- a/fs/udf/inode.c ++++ b/fs/udf/inode.c +@@ -470,13 +470,15 @@ static struct buffer_head *udf_getblk(struct inode *inode, long block, + return NULL; + } + +-/* Extend the file by 'blocks' blocks, return the number of extents added */ ++/* Extend the file with new blocks totaling 'new_block_bytes', ++ * return the number of extents added ++ */ + static int udf_do_extend_file(struct inode *inode, + struct extent_position *last_pos, + struct kernel_long_ad *last_ext, +- sector_t blocks) ++ loff_t new_block_bytes) + { +- sector_t add; ++ uint32_t add; + int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK); + struct super_block *sb = inode->i_sb; + struct kernel_lb_addr prealloc_loc = {}; +@@ -486,7 +488,7 @@ static int udf_do_extend_file(struct inode *inode, + + /* The previous extent is fake and we should not extend by anything + * - there's nothing to do... */ +- if (!blocks && fake) ++ if (!new_block_bytes && fake) + return 0; + + iinfo = UDF_I(inode); +@@ -517,13 +519,12 @@ static int udf_do_extend_file(struct inode *inode, + /* Can we merge with the previous extent? */ + if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == + EXT_NOT_RECORDED_NOT_ALLOCATED) { +- add = ((1 << 30) - sb->s_blocksize - +- (last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) >> +- sb->s_blocksize_bits; +- if (add > blocks) +- add = blocks; +- blocks -= add; +- last_ext->extLength += add << sb->s_blocksize_bits; ++ add = (1 << 30) - sb->s_blocksize - ++ (last_ext->extLength & UDF_EXTENT_LENGTH_MASK); ++ if (add > new_block_bytes) ++ add = new_block_bytes; ++ new_block_bytes -= add; ++ last_ext->extLength += add; + } + + if (fake) { +@@ -544,28 +545,27 @@ static int udf_do_extend_file(struct inode *inode, + } + + /* Managed to do everything necessary? */ +- if (!blocks) ++ if (!new_block_bytes) + goto out; + + /* All further extents will be NOT_RECORDED_NOT_ALLOCATED */ + last_ext->extLocation.logicalBlockNum = 0; + last_ext->extLocation.partitionReferenceNum = 0; +- add = (1 << (30-sb->s_blocksize_bits)) - 1; +- last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | +- (add << sb->s_blocksize_bits); ++ add = (1 << 30) - sb->s_blocksize; ++ last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | add; + + /* Create enough extents to cover the whole hole */ +- while (blocks > add) { +- blocks -= add; ++ while (new_block_bytes > add) { ++ new_block_bytes -= add; + err = udf_add_aext(inode, last_pos, &last_ext->extLocation, + last_ext->extLength, 1); + if (err) + return err; + count++; + } +- if (blocks) { ++ if (new_block_bytes) { + last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | +- (blocks << sb->s_blocksize_bits); ++ new_block_bytes; + err = udf_add_aext(inode, last_pos, &last_ext->extLocation, + last_ext->extLength, 1); + if (err) +@@ -596,6 +596,24 @@ out: + return count; + } + ++/* Extend the final block of the file to final_block_len bytes */ ++static void udf_do_extend_final_block(struct inode *inode, ++ struct extent_position *last_pos, ++ struct kernel_long_ad *last_ext, ++ uint32_t final_block_len) ++{ ++ struct super_block *sb = inode->i_sb; ++ uint32_t added_bytes; ++ ++ added_bytes = final_block_len - ++ (last_ext->extLength & (sb->s_blocksize - 1)); ++ last_ext->extLength += added_bytes; ++ UDF_I(inode)->i_lenExtents += added_bytes; ++ ++ udf_write_aext(inode, last_pos, &last_ext->extLocation, ++ last_ext->extLength, 1); ++} ++ + static int udf_extend_file(struct inode *inode, loff_t newsize) + { + +@@ -605,10 +623,12 @@ static int udf_extend_file(struct inode *inode, loff_t newsize) + int8_t etype; + struct super_block *sb = inode->i_sb; + sector_t first_block = newsize >> sb->s_blocksize_bits, offset; ++ unsigned long partial_final_block; + int adsize; + struct udf_inode_info *iinfo = UDF_I(inode); + struct kernel_long_ad extent; +- int err; ++ int err = 0; ++ int within_final_block; + + if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT) + adsize = sizeof(struct short_ad); +@@ -618,18 +638,8 @@ static int udf_extend_file(struct inode *inode, loff_t newsize) + BUG(); + + etype = inode_bmap(inode, first_block, &epos, &eloc, &elen, &offset); ++ within_final_block = (etype != -1); + +- /* File has extent covering the new size (could happen when extending +- * inside a block)? */ +- if (etype != -1) +- return 0; +- if (newsize & (sb->s_blocksize - 1)) +- offset++; +- /* Extended file just to the boundary of the last file block? */ +- if (offset == 0) +- return 0; +- +- /* Truncate is extending the file by 'offset' blocks */ + if ((!epos.bh && epos.offset == udf_file_entry_alloc_offset(inode)) || + (epos.bh && epos.offset == sizeof(struct allocExtDesc))) { + /* File has no extents at all or has empty last +@@ -643,7 +653,22 @@ static int udf_extend_file(struct inode *inode, loff_t newsize) + &extent.extLength, 0); + extent.extLength |= etype << 30; + } +- err = udf_do_extend_file(inode, &epos, &extent, offset); ++ ++ partial_final_block = newsize & (sb->s_blocksize - 1); ++ ++ /* File has extent covering the new size (could happen when extending ++ * inside a block)? ++ */ ++ if (within_final_block) { ++ /* Extending file within the last file block */ ++ udf_do_extend_final_block(inode, &epos, &extent, ++ partial_final_block); ++ } else { ++ loff_t add = ((loff_t)offset << sb->s_blocksize_bits) | ++ partial_final_block; ++ err = udf_do_extend_file(inode, &epos, &extent, add); ++ } ++ + if (err < 0) + goto out; + err = 0; +@@ -745,6 +770,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block, + /* Are we beyond EOF? */ + if (etype == -1) { + int ret; ++ loff_t hole_len; + isBeyondEOF = true; + if (count) { + if (c) +@@ -760,7 +786,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block, + startnum = (offset > 0); + } + /* Create extents for the hole between EOF and offset */ +- ret = udf_do_extend_file(inode, &prev_epos, laarr, offset); ++ hole_len = (loff_t)offset << inode->i_blkbits; ++ ret = udf_do_extend_file(inode, &prev_epos, laarr, hole_len); + if (ret < 0) { + *err = ret; + newblock = 0; +diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h +index 6376e2dcb0b7..0c78ad0cc515 100644 +--- a/include/linux/cpuhotplug.h ++++ b/include/linux/cpuhotplug.h +@@ -163,6 +163,7 @@ enum cpuhp_state { + CPUHP_AP_PERF_POWERPC_THREAD_IMC_ONLINE, + CPUHP_AP_WORKQUEUE_ONLINE, + CPUHP_AP_RCUTREE_ONLINE, ++ CPUHP_AP_BASE_CACHEINFO_ONLINE, + CPUHP_AP_ONLINE_DYN, + CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30, + CPUHP_AP_X86_HPET_ONLINE, +diff --git a/include/linux/kernel.h b/include/linux/kernel.h +index 1c5469adaa85..bb7baecef002 100644 +--- a/include/linux/kernel.h ++++ b/include/linux/kernel.h +@@ -101,7 +101,8 @@ + #define DIV_ROUND_DOWN_ULL(ll, d) \ + ({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; }) + +-#define DIV_ROUND_UP_ULL(ll, d) DIV_ROUND_DOWN_ULL((ll) + (d) - 1, (d)) ++#define DIV_ROUND_UP_ULL(ll, d) \ ++ DIV_ROUND_DOWN_ULL((unsigned long long)(ll) + (d) - 1, (d)) + + #if BITS_PER_LONG == 32 + # define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d) +diff --git a/include/linux/vmw_vmci_defs.h b/include/linux/vmw_vmci_defs.h +index b724ef7005de..53c5e40a2a8f 100644 +--- a/include/linux/vmw_vmci_defs.h ++++ b/include/linux/vmw_vmci_defs.h +@@ -68,9 +68,18 @@ enum { + + /* + * A single VMCI device has an upper limit of 128MB on the amount of +- * memory that can be used for queue pairs. ++ * memory that can be used for queue pairs. Since each queue pair ++ * consists of at least two pages, the memory limit also dictates the ++ * number of queue pairs a guest can create. + */ + #define VMCI_MAX_GUEST_QP_MEMORY (128 * 1024 * 1024) ++#define VMCI_MAX_GUEST_QP_COUNT (VMCI_MAX_GUEST_QP_MEMORY / PAGE_SIZE / 2) ++ ++/* ++ * There can be at most PAGE_SIZE doorbells since there is one doorbell ++ * per byte in the doorbell bitmap page. ++ */ ++#define VMCI_MAX_GUEST_DOORBELL_COUNT PAGE_SIZE + + /* + * Queues with pre-mapped data pages must be small, so that we don't pin +diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h +index d66f70f63734..3b0e3cdee1c3 100644 +--- a/include/net/ip6_tunnel.h ++++ b/include/net/ip6_tunnel.h +@@ -152,9 +152,12 @@ static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb, + memset(skb->cb, 0, sizeof(struct inet6_skb_parm)); + pkt_len = skb->len - skb_inner_network_offset(skb); + err = ip6_local_out(dev_net(skb_dst(skb)->dev), sk, skb); +- if (unlikely(net_xmit_eval(err))) +- pkt_len = -1; +- iptunnel_xmit_stats(dev, pkt_len); ++ ++ if (dev) { ++ if (unlikely(net_xmit_eval(err))) ++ pkt_len = -1; ++ iptunnel_xmit_stats(dev, pkt_len); ++ } + } + #endif + #endif +diff --git a/include/uapi/linux/nilfs2_ondisk.h b/include/uapi/linux/nilfs2_ondisk.h +index a7e66ab11d1d..c23f91ae5fe8 100644 +--- a/include/uapi/linux/nilfs2_ondisk.h ++++ b/include/uapi/linux/nilfs2_ondisk.h +@@ -29,7 +29,7 @@ + + #include <linux/types.h> + #include <linux/magic.h> +- ++#include <asm/byteorder.h> + + #define NILFS_INODE_BMAP_SIZE 7 + +@@ -533,19 +533,19 @@ enum { + static inline void \ + nilfs_checkpoint_set_##name(struct nilfs_checkpoint *cp) \ + { \ +- cp->cp_flags = cpu_to_le32(le32_to_cpu(cp->cp_flags) | \ +- (1UL << NILFS_CHECKPOINT_##flag)); \ ++ cp->cp_flags = __cpu_to_le32(__le32_to_cpu(cp->cp_flags) | \ ++ (1UL << NILFS_CHECKPOINT_##flag)); \ + } \ + static inline void \ + nilfs_checkpoint_clear_##name(struct nilfs_checkpoint *cp) \ + { \ +- cp->cp_flags = cpu_to_le32(le32_to_cpu(cp->cp_flags) & \ ++ cp->cp_flags = __cpu_to_le32(__le32_to_cpu(cp->cp_flags) & \ + ~(1UL << NILFS_CHECKPOINT_##flag)); \ + } \ + static inline int \ + nilfs_checkpoint_##name(const struct nilfs_checkpoint *cp) \ + { \ +- return !!(le32_to_cpu(cp->cp_flags) & \ ++ return !!(__le32_to_cpu(cp->cp_flags) & \ + (1UL << NILFS_CHECKPOINT_##flag)); \ + } + +@@ -595,20 +595,20 @@ enum { + static inline void \ + nilfs_segment_usage_set_##name(struct nilfs_segment_usage *su) \ + { \ +- su->su_flags = cpu_to_le32(le32_to_cpu(su->su_flags) | \ ++ su->su_flags = __cpu_to_le32(__le32_to_cpu(su->su_flags) | \ + (1UL << NILFS_SEGMENT_USAGE_##flag));\ + } \ + static inline void \ + nilfs_segment_usage_clear_##name(struct nilfs_segment_usage *su) \ + { \ + su->su_flags = \ +- cpu_to_le32(le32_to_cpu(su->su_flags) & \ ++ __cpu_to_le32(__le32_to_cpu(su->su_flags) & \ + ~(1UL << NILFS_SEGMENT_USAGE_##flag)); \ + } \ + static inline int \ + nilfs_segment_usage_##name(const struct nilfs_segment_usage *su) \ + { \ +- return !!(le32_to_cpu(su->su_flags) & \ ++ return !!(__le32_to_cpu(su->su_flags) & \ + (1UL << NILFS_SEGMENT_USAGE_##flag)); \ + } + +@@ -619,15 +619,15 @@ NILFS_SEGMENT_USAGE_FNS(ERROR, error) + static inline void + nilfs_segment_usage_set_clean(struct nilfs_segment_usage *su) + { +- su->su_lastmod = cpu_to_le64(0); +- su->su_nblocks = cpu_to_le32(0); +- su->su_flags = cpu_to_le32(0); ++ su->su_lastmod = __cpu_to_le64(0); ++ su->su_nblocks = __cpu_to_le32(0); ++ su->su_flags = __cpu_to_le32(0); + } + + static inline int + nilfs_segment_usage_clean(const struct nilfs_segment_usage *su) + { +- return !le32_to_cpu(su->su_flags); ++ return !__le32_to_cpu(su->su_flags); + } + + /** +diff --git a/kernel/cpu.c b/kernel/cpu.c +index f370a0f43005..d768e15bef83 100644 +--- a/kernel/cpu.c ++++ b/kernel/cpu.c +@@ -1944,6 +1944,9 @@ static ssize_t write_cpuhp_fail(struct device *dev, + if (ret) + return ret; + ++ if (fail < CPUHP_OFFLINE || fail > CPUHP_ONLINE) ++ return -EINVAL; ++ + /* + * Cannot fail STARTING/DYING callbacks. + */ +diff --git a/kernel/events/core.c b/kernel/events/core.c +index 580616e6fcee..3d4eb6f840eb 100644 +--- a/kernel/events/core.c ++++ b/kernel/events/core.c +@@ -5630,7 +5630,7 @@ static void perf_sample_regs_user(struct perf_regs *regs_user, + if (user_mode(regs)) { + regs_user->abi = perf_reg_abi(current); + regs_user->regs = regs; +- } else if (current->mm) { ++ } else if (!(current->flags & PF_KTHREAD)) { + perf_get_regs_user(regs_user, regs, regs_user_copy); + } else { + regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE; +diff --git a/net/can/af_can.c b/net/can/af_can.c +index 9de9678fa7d0..46c85731d16f 100644 +--- a/net/can/af_can.c ++++ b/net/can/af_can.c +@@ -959,6 +959,8 @@ static struct pernet_operations can_pernet_ops __read_mostly = { + + static __init int can_init(void) + { ++ int err; ++ + /* check for correct padding to be able to use the structs similarly */ + BUILD_BUG_ON(offsetof(struct can_frame, can_dlc) != + offsetof(struct canfd_frame, len) || +@@ -972,15 +974,31 @@ static __init int can_init(void) + if (!rcv_cache) + return -ENOMEM; + +- register_pernet_subsys(&can_pernet_ops); ++ err = register_pernet_subsys(&can_pernet_ops); ++ if (err) ++ goto out_pernet; + + /* protocol register */ +- sock_register(&can_family_ops); +- register_netdevice_notifier(&can_netdev_notifier); ++ err = sock_register(&can_family_ops); ++ if (err) ++ goto out_sock; ++ err = register_netdevice_notifier(&can_netdev_notifier); ++ if (err) ++ goto out_notifier; ++ + dev_add_pack(&can_packet); + dev_add_pack(&canfd_packet); + + return 0; ++ ++out_notifier: ++ sock_unregister(PF_CAN); ++out_sock: ++ unregister_pernet_subsys(&can_pernet_ops); ++out_pernet: ++ kmem_cache_destroy(rcv_cache); ++ ++ return err; + } + + static __exit void can_exit(void) +diff --git a/net/core/skbuff.c b/net/core/skbuff.c +index 2b3b0307dd89..6d9fd7d4bdfa 100644 +--- a/net/core/skbuff.c ++++ b/net/core/skbuff.c +@@ -2299,6 +2299,7 @@ do_frag_list: + kv.iov_base = skb->data + offset; + kv.iov_len = slen; + memset(&msg, 0, sizeof(msg)); ++ msg.msg_flags = MSG_DONTWAIT; + + ret = kernel_sendmsg_locked(sk, &msg, &kv, 1, slen); + if (ret <= 0) +diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c +index cb1b4772dac0..35d5a76867d0 100644 +--- a/net/ipv6/netfilter/nf_conntrack_reasm.c ++++ b/net/ipv6/netfilter/nf_conntrack_reasm.c +@@ -265,8 +265,14 @@ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb, + + prev = fq->q.fragments_tail; + err = inet_frag_queue_insert(&fq->q, skb, offset, end); +- if (err) ++ if (err) { ++ if (err == IPFRAG_DUP) { ++ /* No error for duplicates, pretend they got queued. */ ++ kfree_skb(skb); ++ return -EINPROGRESS; ++ } + goto insert_error; ++ } + + if (dev) + fq->iif = dev->ifindex; +@@ -293,15 +299,17 @@ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb, + skb->_skb_refdst = 0UL; + err = nf_ct_frag6_reasm(fq, skb, prev, dev); + skb->_skb_refdst = orefdst; +- return err; ++ ++ /* After queue has assumed skb ownership, only 0 or ++ * -EINPROGRESS must be returned. ++ */ ++ return err ? -EINPROGRESS : 0; + } + + skb_dst_drop(skb); + return -EINPROGRESS; + + insert_error: +- if (err == IPFRAG_DUP) +- goto err; + inet_frag_kill(&fq->q); + err: + skb_dst_drop(skb); +@@ -481,12 +489,6 @@ int nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user) + ret = 0; + } + +- /* after queue has assumed skb ownership, only 0 or -EINPROGRESS +- * must be returned. +- */ +- if (ret) +- ret = -EINPROGRESS; +- + spin_unlock_bh(&fq->q.lock); + inet_frag_put(&fq->q); + return ret; +diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h +index a133acb43eb1..0e209a88d88a 100644 +--- a/net/mac80211/ieee80211_i.h ++++ b/net/mac80211/ieee80211_i.h +@@ -1405,7 +1405,7 @@ ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + +- if (WARN_ON(!chanctx_conf)) { ++ if (WARN_ON_ONCE(!chanctx_conf)) { + rcu_read_unlock(); + return NULL; + } +diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c +index 96e57d7c2872..c6edae051e9b 100644 +--- a/net/mac80211/mesh.c ++++ b/net/mac80211/mesh.c +@@ -922,6 +922,7 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata) + + /* flush STAs and mpaths on this iface */ + sta_info_flush(sdata); ++ ieee80211_free_keys(sdata, true); + mesh_path_flush_by_iface(sdata); + + /* stop the beacon */ +@@ -1209,7 +1210,8 @@ int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata) + ifmsh->chsw_ttl = 0; + + /* Remove the CSA and MCSP elements from the beacon */ +- tmp_csa_settings = rcu_dereference(ifmsh->csa); ++ tmp_csa_settings = rcu_dereference_protected(ifmsh->csa, ++ lockdep_is_held(&sdata->wdev.mtx)); + RCU_INIT_POINTER(ifmsh->csa, NULL); + if (tmp_csa_settings) + kfree_rcu(tmp_csa_settings, rcu_head); +@@ -1231,6 +1233,8 @@ int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, + struct mesh_csa_settings *tmp_csa_settings; + int ret = 0; + ++ lockdep_assert_held(&sdata->wdev.mtx); ++ + tmp_csa_settings = kmalloc(sizeof(*tmp_csa_settings), + GFP_ATOMIC); + if (!tmp_csa_settings) +diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c +index 6d118357d9dc..9259529e0412 100644 +--- a/net/sunrpc/clnt.c ++++ b/net/sunrpc/clnt.c +@@ -2706,6 +2706,7 @@ int rpc_clnt_add_xprt(struct rpc_clnt *clnt, + xprt = xprt_iter_xprt(&clnt->cl_xpi); + if (xps == NULL || xprt == NULL) { + rcu_read_unlock(); ++ xprt_switch_put(xps); + return -EAGAIN; + } + resvport = xprt->resvport; +diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c +index 2325d7ad76df..e8e8b756dc52 100644 +--- a/samples/bpf/bpf_load.c ++++ b/samples/bpf/bpf_load.c +@@ -613,7 +613,7 @@ void read_trace_pipe(void) + static char buf[4096]; + ssize_t sz; + +- sz = read(trace_fd, buf, sizeof(buf)); ++ sz = read(trace_fd, buf, sizeof(buf) - 1); + if (sz > 0) { + buf[sz] = 0; + puts(buf); +diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c +index 3552b4b1f902..20914a33ca5d 100644 +--- a/sound/pci/hda/patch_realtek.c ++++ b/sound/pci/hda/patch_realtek.c +@@ -3114,6 +3114,7 @@ static void alc256_init(struct hda_codec *codec) + alc_update_coefex_idx(codec, 0x57, 0x04, 0x0007, 0x4); /* Hight power */ + alc_update_coefex_idx(codec, 0x53, 0x02, 0x8000, 1 << 15); /* Clear bit */ + alc_update_coefex_idx(codec, 0x53, 0x02, 0x8000, 0 << 15); ++ alc_update_coef_idx(codec, 0x36, 1 << 13, 1 << 5); /* Switch pcbeep path to Line in path*/ + } + + static void alc256_shutup(struct hda_codec *codec) +@@ -7218,7 +7219,6 @@ static int patch_alc269(struct hda_codec *codec) + spec->shutup = alc256_shutup; + spec->init_hook = alc256_init; + spec->gen.mixer_nid = 0; /* ALC256 does not have any loopback mixer path */ +- alc_update_coef_idx(codec, 0x36, 1 << 13, 1 << 5); /* Switch pcbeep path to Line in path*/ + break; + case 0x10ec0257: + spec->codec_variant = ALC269_TYPE_ALC257; +diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c +index dc06f5e40041..526d808ecbbd 100644 +--- a/virt/kvm/arm/vgic/vgic-its.c ++++ b/virt/kvm/arm/vgic/vgic-its.c +@@ -1677,6 +1677,7 @@ static void vgic_its_destroy(struct kvm_device *kvm_dev) + mutex_unlock(&its->its_lock); + + kfree(its); ++ kfree(kvm_dev);/* alloc by kvm_ioctl_create_device, free by .destroy */ + } + + int vgic_its_has_attr_regs(struct kvm_device *dev,
