Re: [PATCH] iommu/amd: Fix event counter availability check

Dear Alexander, Thank you very much for the patch. Am 31.05.20 um 09:22 schrieb Alexander Monakov: Adding Shuah Khan to Cc: I've noticed you've seen this issue on Ryzen 2400GE; can you have a look at the patch? Would be nice to know if it fixes the problem for you too. On Fri, 29 May

Re: [PATCH v3 07/18] nitro_enclaves: Init misc device providing the ioctl interface

On Tue, 2020-05-26 at 08:51 +0200, Greg KH wrote: > > And get them to sign off on it too, showing they agree with the design > decisions here :) Isn't it generally frowned upon to publish a patch with internal sign- off's on it already ? Or do you mean for us to publicly sign off once we have

[GIT PULL] Crypto Update for 5.8

Hi Linus: API: - Introduce crypto_shash_tfm_digest() and use it wherever possible. - Fix use-after-free and race in crypto_spawn_alg. - Add support for parallel and batch requests to crypto_engine. Algorithms: - Update jitter RNG for SP800-90B compliance. - Always use jitter RNG as seed in

Re: [PATCH] irqchip/gic-v3-its: Don't try to move a disabled irq

On Sun, 2020-05-31 at 12:09 +0100, Marc Zyngier wrote: > > > > Not great indeed. But this is not, as far as I can tell, a GIC > > driver problem. > > > > The semantic of activate/deactivate (which maps to started/shutdown > > in the IRQ code) is that the HW resources for a given interrupt are >

Re: [PATCH v6] support gce on mt6779 platform

Hi Jassi, Thanks for your comment On Sat, 2020-05-30 at 15:34 -0500, Jassi Brar wrote: > On Thu, May 28, 2020 at 12:05 PM Dennis YC Hsieh > wrote: > > > > This patch support gce on mt6779 platform. > > > > Change since v5: > > - spearate address shift code in client helper and mailbox

Re: [PATCH v9 2/8] tpm: tpm_tis: Fix expected bit handling and send all bytes in one shot without last byte in exception

On Tue, May 26, 2020 at 05:16:52PM +0300, amirmi...@gmail.com wrote: > From: Amir Mizinski > > Incorrect implementation of send message was detected. We polled only > TPM_STS.stsValid bit and then we single-checked the TPM_STS.expect bit > value. > TPM_STS.expected bit should be checked at the

Re: [PATCH 25/30] KVM: nSVM: leave guest mode when clearing EFER.SVME

On 5/29/20 8:39 AM, Paolo Bonzini wrote: According to the AMD manual, the effect of turning off EFER.SVME while a guest is running is undefined. We make it leave guest mode immediately, similar to the effect of clearing the VMX bit in MSR_IA32_FEAT_CTL. I see that svm_set_efer() is called

Re: [PATCH v9 1/8] tpm: tpm_tis: Make implementation of read16, read32 and write32 optional

Plese, write the short summary as tpm: Make read{16, 32}() and write32() in tpm_tis_phy_ops optional On Tue, May 26, 2020 at 05:16:51PM +0300, amirmi...@gmail.com wrote: > From: Amir Mizinski > > Only tpm_tis can use memory-mapped I/O, which is truly mapped into > the kernel's memory space.

Re: [PATCH] crypto: hisilicon/qm - allow smaller reads in debugfs

Hi Dan & Zhou, On 2020/5/28 20:37, Dan Carpenter wrote: > Originally this code rejected any read less than 256 bytes. There > is no need for this artificial limit. > > Also I have changed the snprintf() functions to scnprintf(). The > difference is that snprintf() returns the number of bytes

[PATCH 3/3] arm64: dts: imx8qxp: Add ethernet alias

From: Peng Fan Add ethernet alias, so bootloader code can use this to find the primary ethernet device, and set the MAC address. Signed-off-by: Peng Fan --- arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git

[PATCH 2/3] arm64: dts: imx8qxp: add i2c aliases

From: Peng Fan The devices could be enumerated properly with aliases. Signed-off-by: Peng Fan --- arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 4 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi index

[PATCH 1/3] arm64: dts: imx8qxp: add alias for lsio MU

From: Peng Fan Add lsio mu alias for all lsio MUs that could communicate with SCU, imx_scu_enable_general_irq_channel will parse the alias to get the mu resource id, if using other MU, not MU1, the `mu_resource_id` is not what we expect, so add alias to fix this issue. Signed-off-by: Peng Fan

[PATCH 0/3] arm64: dts: imx8qxp: dtb aliases fix/update

From: Peng Fan Minor patchset to fix and update alias for i.MX8QXP Peng Fan (3): arm64: dts: imx8qxp: add alias for lsio MU arm64: dts: imx8qxp: add i2c aliases arm64: dts: imx8qxp: Add ethernet alias arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 10 ++ 1 file changed, 10

Re: [PATCH v4 1/4] KEYS: trusted: Add generic trusted keys framework

On Wed, May 06, 2020 at 03:10:14PM +0530, Sumit Garg wrote: > Current trusted keys framework is tightly coupled to use TPM device as > an underlying implementation which makes it difficult for implementations > like Trusted Execution Environment (TEE) etc. to provide trusked keys > support in case

Re: [PATCH] input: tablet: aiptek: fix possible buffer overflow caused by bad DMA value in aiptek_irq()

Hi Jia-Ju, Thank you for the patch! Yet something to improve: [auto build test ERROR on input/next] [also build test ERROR on v5.7 next-20200529] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to

[GIT PULL] hwmon updates for v5.8

Hi Linus, Please pull hwmon updates for Linux v5.8 from signed tag: git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-for-v5.8 Thanks, Guenter -- The following changes since commit b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce: Linux 5.7-rc6 (2020-05-17

Re: [PATCH v4 1/4] KEYS: trusted: Add generic trusted keys framework

On Wed, May 06, 2020 at 03:10:14PM +0530, Sumit Garg wrote: > Current trusted keys framework is tightly coupled to use TPM device as > an underlying implementation which makes it difficult for implementations > like Trusted Execution Environment (TEE) etc. to provide trusked keys > support in case

Re: [PATCH RFC] seccomp: Implement syscall isolation based on memory areas

> On May 31, 2020, at 4:50 PM, Brendan Shanks wrote: > >  >> On May 31, 2020, at 11:57 AM, Andy Lutomirski wrote: >> >> Using SECCOMP_RET_USER_NOTIF is likely to be considerably more >> expensive than my scheme. On a non-PTI system, my approach will add a >> few tens of ns to each

My Dear in the lord

My Dear in the lord My name is Mrs. Mina A. Brunel I am a Norway Citizen who is living in Burkina Faso, I am married to Mr. Brunel Patrice, a politician who owns a small gold company in Burkina Faso; He died of Leprosy and Radesyge, in the year February 2010, During his lifetime he

Re: [PATCHv5 1/3] optee: do drivers initialization before and after tee-supplicant run

On Fri, May 29, 2020 at 11:26:59AM +0300, Maxim Uvarov wrote: > Some drivers (like ftpm) can operate only after tee-supplicant > runs because of tee-supplicant provides things like storage > services.  This patch splits probe of non tee-supplicant dependable > drivers to the early stage, and after

Re: [PATCH] tpm_tis_spi: Don't send anything during flow control

On Thu, May 28, 2020 at 03:19:30PM -0700, Douglas Anderson wrote: > During flow control we are just reading from the TPM, yet our spi_xfer > has the tx_buf and rx_buf both non-NULL which means we're requesting a > full duplex transfer. > > SPI is always somewhat of a full duplex protocol anyway

Re: [PATCH] staging: kpc2000: kpc_dma: Convert get_user_pages() --> pin_user_pages()

On 2020-05-31 10:51, Souptick Joarder wrote: In 2019, we introduced pin_user_pages*() and now we are converting get_user_pages*() to the new API as appropriate. [1] & [2] could be referred for more information. When pin_user_pages() returns numbers of partially mapped pages, those pages were

[PATCH v31 11/21] x86/sgx: Linux Enclave Driver

Intel Software Guard eXtensions (SGX) is a set of CPU instructions that can be used by applications to set aside private regions of code and data. The code outside the SGX hosted software entity is disallowed to access the memory inside the enclave enforced by the CPU. We call these entities as

[PATCH net-next v4] hinic: add set_channels ethtool_ops support

add support to change TX/RX queue number with ethtool -L ethx combined Signed-off-by: Luo bin --- .../net/ethernet/huawei/hinic/hinic_ethtool.c | 40 +++ .../net/ethernet/huawei/hinic/hinic_main.c| 2 +- drivers/net/ethernet/huawei/hinic/hinic_tx.c | 5 +++ 3 files

RE: [PATCH v10 00/10] exynos-ufs: Add support for UFS HCI

> -Original Message- > From: Alim Akhtar > Sent: 28 May 2020 06:47 > To: r...@kernel.org > Cc: devicet...@vger.kernel.org; linux-s...@vger.kernel.org; k...@kernel.org; > avri.alt...@wdc.com; martin.peter...@oracle.com; > kwmad@samsung.com; stanley@mediatek.com; >

[PATCH v31 13/21] x86/sgx: Add a page reclaimer

There is a limited amount of EPC available. Therefore, some of it must be copied to the regular memory, and only subset kept in the SGX reserved memory. While kernel cannot directly access enclave memory, SGX provides a set of ENCLS leaf functions to perform reclaiming. This commits implements a

RE: [PATCH v10 10/10] arm64: dts: Add node for ufs exynos7

> -Original Message- > From: Krzysztof Kozlowski > Sent: 29 May 2020 13:36 > To: Alim Akhtar > Cc: r...@kernel.org; devicet...@vger.kernel.org; linux-s...@vger.kernel.org; > avri.alt...@wdc.com; martin.peter...@oracle.com; > kwmad@samsung.com; stanley@mediatek.com; >

[PATCH 2/2] nbd: remove unused 'NBD_MAGIC'

Remove 'NBD_MAGIC' as it is not used since commit 5ea8d10802ec ("nbd: separate out the config information"). Signed-off-by: Dongli Zhang --- drivers/block/nbd.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 74c1363702f5..83435ce141a8 100644

[PATCH 0/2] nbd: two cleanup

This is just cleanup without functional change. Thank you very much! Dongli Zhang

[PATCH 1/2] nbd: append module param and description following corresponding variables

A lot of drivers append the module parameter and its description following the corresponding variables (e.g., 'g_submit_queues' in null or 'admin_timeout' in nvme). This patch would do the same for 'nbds_max' and 'max_part' in nbd driver. This makes it much more friendly to cscope when reading

Re: [V6 PATCH 2/2] ASoC: max98390: Added Amplifier Driver

On Fri, May 29, 2020 at 6:35 PM Mark Brown wrote: > > On Fri, May 29, 2020 at 05:04:36PM +0900, Steve Lee wrote: > > On Thu, May 28, 2020 at 8:54 PM Mark Brown wrote: > > > > > Reported-by: kbuild test robot > > > > Don't think the lkp bot asked for this driver! :P > > > Thanks, I will send

[PATCH v31 21/21] x86/sgx: Update MAINTAINERS

Add the maintainer information for the SGX subsystem. Cc: Thomas Gleixner Cc: Borislav Petkov Signed-off-by: Jarkko Sakkinen --- MAINTAINERS | 11 +++ 1 file changed, 11 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 091ec22c1a23..cdebc57f9901 100644 --- a/MAINTAINERS +++

[PATCH v31 20/21] docs: x86/sgx: Document SGX micro architecture and kernel internals

Document the Intel SGX kernel architecture. The fine-grained micro architecture details can be looked up from Intel SDM Volume 3D. Cc: linux-...@vger.kernel.org Acked-by: Randy Dunlap Co-developed-by: Sean Christopherson Signed-off-by: Sean Christopherson Signed-off-by: Jarkko Sakkinen ---

[PATCH v31 19/21] selftests/x86: Add a selftest for SGX

Add a selftest for SGX. It is a trivial test where a simple enclave copies one 64-bit word of memory between two memory locations. Cc: linux-kselft...@vger.kernel.org Signed-off-by: Jarkko Sakkinen --- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/sgx/.gitignore

[PATCH v31 16/21] x86/fault: Add helper function to sanitize error code

From: Sean Christopherson Add helper function to sanitize error code to prepare for vDSO exception fixup, which will expose the error code to userspace and runs before set_signal_archinfo(), i.e. suppresses the signal when fixup is successful. Acked-by: Jethro Beekman Signed-off-by: Sean

[PATCH v31 15/21] x86/vdso: Add support for exception fixup in vDSO functions

From: Sean Christopherson The basic concept and implementation is very similar to the kernel's exception fixup mechanism. The key differences are that the kernel handler is hardcoded and the fixup entry addresses are relative to the overall table as opposed to individual entries. Hardcoding

[PATCH v31 18/21] x86/vdso: Implement a vDSO for Intel SGX enclave call

From: Sean Christopherson An SGX runtime must be aware of the exceptions, which happen inside an enclave. Introduce a vDSO call that wraps EENTER/ERESUME cycle and returns the CPU exception back to the caller exactly when it happens. Kernel fixups the exception information to RDI, RSI and RDX.

[PATCH v31 17/21] x86/traps: Attempt to fixup exceptions in vDSO before signaling

From: Sean Christopherson vDSO functions can now leverage an exception fixup mechanism similar to kernel exception fixup. For vDSO exception fixup, the initial user is Intel's Software Guard Extensions (SGX), which will wrap the low-level transitions to/from the enclave, i.e. EENTER and ERESUME

[PATCH v31 14/21] x86/sgx: ptrace() support for the SGX driver

Add VMA callbacks for ptrace() that can be used with debug enclaves. With debug enclaves data can be read and write the memory word at a time by using ENCLS(EDBGRD) and ENCLS(EDBGWR) leaf instructions. Acked-by: Jethro Beekman Signed-off-by: Jarkko Sakkinen --- arch/x86/kernel/cpu/sgx/encl.c |

[PATCH v31 10/21] mm: Introduce vm_ops->may_mprotect()

From: Sean Christopherson Add vm_ops()->may_mprotect() to check additional constraints. SGX uses this callback to add two constraints: 1. Verify that the address range does not have holes: for each page address, there is an actual enclave page created. 2. Mapped permissions do not surpass

[PATCH v31 12/21] x86/sgx: Add provisioning

In order to provide a mechanism for devilering provisoning rights: 1. Add a new device file /dev/sgx/provision that works as a token for allowing an enclave to have the provisioning privileges. 2. Add a new ioctl called SGX_IOC_ENCLAVE_SET_ATTRIBUTE that accepts the following data

[PATCH v31 05/21] x86/sgx: Add wrappers for ENCLS leaf functions

ENCLS is a ring 0 instruction, which contains a set of leaf functions for managing an enclave. Enclaves are measured and signed software entities, which are protected by asserting the outside memory accesses and memory encryption. Add a two-layer macro system along with an encoding scheme to

[PATCH v31 09/21] x86/sgx: Add __sgx_alloc_epc_page() and sgx_free_epc_page()

Add __sgx_alloc_epc_page(), which iterates through EPC sections and borrows a page structure that is not used by anyone else. When a page is no longer needed it must be released with sgx_free_epc_page(). This function implicitly calls ENCLS[EREMOVE], which will return the page to the uninitialized

[PATCH v31 06/21] x86/cpu/intel: Detect SGX support

From: Sean Christopherson Configure SGX as part of feature control MSR initialization and update the associated X86_FEATURE flags accordingly. Because the kernel will require the LE hash MSRs to be writable when running native enclaves, disable X86_FEATURE_SGX (and all derivatives) if SGX

[PATCH v31 04/21] x86/sgx: Add SGX microarchitectural data structures

Define the SGX microarchitectural data structures used by various SGX opcodes. This is not an exhaustive representation of all SGX data structures but only those needed by the kernel. The data structures are described in: Intel SDM: 37.6 INTEL® SGX DATA STRUCTURES OVERVIEW Acked-by: Jethro

[PATCH v31 07/21] x86/cpu/intel: Add nosgx kernel parameter

Add kernel parameter to disable Intel SGX kernel support. Tested-by: Sean Christopherson Reviewed-by: Sean Christopherson Signed-off-by: Jarkko Sakkinen --- Documentation/admin-guide/kernel-parameters.txt | 2 ++ arch/x86/kernel/cpu/feat_ctl.c | 9 + 2 files changed,

[PATCH v31 08/21] x86/sgx: Initialize metadata for Enclave Page Cache (EPC) sections

From: Sean Christopherson Enumerate Enclave Page Cache (EPC) sections via CPUID and add the data structures necessary to track EPC pages so that they can be easily borrowed for different uses. Embed section index to the first eight bits of the EPC page descriptor. Existing client hardware

[PATCH v31 02/21] x86/cpufeatures: x86/msr: Add Intel SGX Launch Control hardware bits

From: Sean Christopherson Add X86_FEATURE_SGX_LC, which informs whether or not the CPU supports SGX Launch Control. Add MSR_IA32_SGXLEPUBKEYHASH{0, 1, 2, 3}, which when combined contain a SHA256 hash of a 3072-bit RSA public key. SGX backed software packages, so called enclaves, are always

[PATCH v31 01/21] x86/cpufeatures: x86/msr: Add Intel SGX hardware bits

From: Sean Christopherson Add X86_FEATURE_SGX from CPUID.(EAX=7, ECX=1), which informs whether the CPU has SGX. Add X86_FEATURE_SGX1 and X86_FEATURE_SGX2 from CPUID.(EAX=12H, ECX=0), which describe the level of SGX support available [1]. Add IA32_FEATURE_CONTROL_SGX_ENABLE. BIOS can use this

[PATCH v31 00/21] Intel SGX foundations

Intel(R) SGX is a set of CPU instructions that can be used by applications to set aside private regions of code and data. The code outside the enclave is disallowed to access the memory inside the enclave by the CPU access control. There is a new hardware unit in the processor called Memory

[PATCH v31 03/21] x86/mm: x86/sgx: Signal SIGSEGV with PF_SGX

From: Sean Christopherson Include SGX bit to the PF error codes and throw SIGSEGV with PF_SGX when a #PF with SGX set happens. CPU throws a #PF with the SGX bit in the event of Enclave Page Cache Map (EPCM) conflict. The EPCM is a CPU-internal table, which describes the properties for a enclave

Re: [PATCH v5 03/14] PCI: cadence: Convert all r/w accessors to perform only 32-bit accesses

Hi Rob, On 5/28/2020 3:36 AM, Kishon Vijay Abraham I wrote: > Hi Rob, > > On 5/27/2020 10:07 PM, Rob Herring wrote: >> On Wed, May 27, 2020 at 4:49 AM Kishon Vijay Abraham I wrote: >>> >>> Hi Rob, >>> >>> On 5/26/2020 8:42 PM, Rob Herring wrote: On Sun, May 24, 2020 at 9:30 PM Kishon Vijay

Re: [PATCH RESEND v8 1/2] ACPI / APEI: Add support to notify the vendor specific HW errors

Hi Shiju, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on pci/next] [also build test WARNING on linus/master v5.7-rc7] [cannot apply to pm/linux-next next-20200529] [if your patch is applied to the wrong git tree, please drop us a note to help improve the

[PATCH] zswap: docs/vm: Fix typo accept_threshold_percent in zswap.rst

Recently, I switched over from swap-file to zramswap. When reading the Documentation/vm/zswap.rst file I fell over this typo. The parameter is called accept_threshold_percent not accept_threhsold_percent in /sys/module/zswap/parameters/ directory. Fixes: 45190f01dd402 ("mm/zswap.c: add

[PATCH] staging: gasket: replace symbolic permissions

WARNING: Symbolic permissions 'S_IRUGO' are not preferred. Consider using octal permissions '0444'. + .attr = __ATTR(_name, S_IRUGO, _show_function, NULL), \ warning detected by checkpatch.pl Signed-off-by: Rodolfo C. Villordo --- drivers/staging/gasket/gasket_sysfs.h |

[PATCH 2/2] MM: Discard NR_UNSTABLE_NFS, use NR_WRITEBACK instead.

After an NFS page has been written it is considered "unstable" until a COMMIT request succeeds. If the COMMIT fails, the page will be re-written. These "unstable" pages are currently accounted as "reclaimable", either in WB_RECLAIMABLE, or in NR_UNSTABLE_NFS which is included in a 'reclaimable'

[PATCH 1/2] MM: replace PF_LESS_THROTTLE with PF_LOCAL_THROTTLE

PF_LESS_THROTTLE exists for loop-back nfsd (and a similar need in the loop block driver and callers of prctl(PR_SET_IO_FLUSHER)), where a daemon needs to write to one bdi (the final bdi) in order to free up writes queued to another bdi (the client bdi). The daemon sets PF_LESS_THROTTLE and gets

[PATCH 1/2] iommu/vt-d: Make Intel SVM code 64-bit only

Current Intel SVM is designed by setting the pgd_t of the processor page table to FLPTR field of the PASID entry. The first level translation only supports 4 and 5 level paging structures, hence it's infeasible for the IOMMU to share a processor's page table when it's running in 32-bit mode. Let's

[PATCH 2/2] iommu/vt-d: Set U/S bit in first level page table by default

When using first-level translation for IOVA, currently the U/S bit in the page table is cleared which implies DMA requests with user privilege are blocked. As the result, following error messages might be observed when passing through a device to user level: DMAR: DRHD: handling fault status reg

Writeback fixes for NFS

Hi Andrew, could you please queue these two patches (following). I think they have sufficient review and no remaining complaints. Thanks, NeilBrown signature.asc Description: PGP signature

[PATCH 0/2] iommu/vt-d: Two fixes for v5.8

Hi Joerg, This encloses two fixes for v5.8. - Make Intel SVM code 64-bit only - Set U/S bit to make IOVA over first level compatible with 2nd level translations. Best regards, baolu Lu Baolu (2): iommu/vt-d: Make Intel SVM code 64-bit only iommu/vt-d: Set U/S bit in first level page table

Linux 5.7

So we had a fairly calm last week, with nothing really screaming "let's delay one more rc". Knock wood - let's hope we don't have anything silly lurking this time, like the last-minute wifi regression we had in 5.6.. But embarrassing regressions last time notwithstanding, it all looks fine. And

Re: [PATCH ghak124 v2] audit: log nftables configuration change events

a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Richard-Guy-Briggs/audit-log-nftables-configuration-change-events/20200531

Re: [PATCH v7 1/4] bitops: Introduce the the for_each_set_clump macro

On Mon, Jun 1, 2020 at 4:07 AM Rikard Falkeborn wrote: > > + Emil who was working on a patch for this > > On Sun, May 31, 2020 at 02:00:45PM +0300, Andy Shevchenko wrote: > > On Sun, May 31, 2020 at 4:11 AM Syed Nayyar Waris > > wrote: > > > On Sat, May 30, 2020 at 2:50 PM Andy Shevchenko > > >

Re: [PATCH stable-4.19.y] net: phy: reschedule state machine if AN has not completed in PHY_AN state

On Mon, Jun 01, 2020 at 12:00:16AM +0300, Vladimir Oltean wrote: > On Sun, 31 May 2020 at 03:19, Russell King - ARM Linux admin > wrote: > > > > On Sun, May 31, 2020 at 12:43:15AM +0300, Vladimir Oltean wrote: > > > From: Vladimir Oltean > > > > > > In kernel 4.19 (and probably earlier too)

Re: [PATCH] drm/vkms: Optimize compute_crc(), blend()

Hi, First of all, thanks a lot for all your patch. And thanks Emil for your feedback. I have a suggestion here: Emil: Could you give me your Acked-by or maybe Reviewed-by for the writeback series? With that, I can finally apply the series. Sidong: Secondly, after applying the writeback series,

Re: [PATCH 8/8] macintosh/adb-iop: Implement SRQ autopolling

On Sun, 31 May 2020, Geert Uytterhoeven wrote: > Hi Finn, > > On Sun, May 31, 2020 at 1:20 AM Finn Thain wrote: > > The adb_driver.autopoll method is needed during ADB bus scan and device > > address assignment. Implement this method so that the IOP's list of > > device addresses can be

Re: [PATCH] irqchip/gic-v3-its: Don't try to move a disabled irq

Marc, > On May 31, 2020, at 6:10 AM, Marc Zyngier wrote: >> Not great indeed. But this is not, as far as I can tell, a GIC >> driver problem. >> >> The semantic of activate/deactivate (which maps to started/shutdown >> in the IRQ code) is that the HW resources for a given interrupt are >> only

Re: [PATCH] perf libdw: Fix off-by 1 relative directory includes

On Sun, May 31, 2020 at 7:29 AM Namhyung Kim wrote: > > Hi Ian, > > On Sat, May 30, 2020 at 7:53 AM Ian Rogers wrote: > > > > This is currently working due to extra include paths in the build. > > > > Before: > > $ cd tools/perf/arch/arm64/util > > $ ls -la ../../util/unwind-libdw.h > > ls:

Re: [PATCH] perf stat: Ensure group is defined on top of the same cpu mask

On Sun, May 31, 2020 at 9:22 AM Jiri Olsa wrote: > > Jin Yao reported the issue (and posted first versions of this change) > with groups being defined over events with different cpu mask. > > This causes assert aborts in get_group_fd, like: > > # perf stat -M "C2_Pkg_Residency" -a -- sleep 1 >

Re: [PATCH 0/4] Mac IOP driver fixes

On Sun, 31 May 2020, Geert Uytterhoeven wrote: > Hi Finn, > > On Sun, May 31, 2020 at 1:16 AM Finn Thain wrote: > > > This patch series has several bug fixes for the IOP driver and some > > improvements to the debug level log messages. > > Thanks for your series! > Thanks for your review

Re: Re: [PATCH 09/14] fs: don't change the address limit for ->write_iter in __kernel_write

On 2020-05-29 6:32 a.m., Christoph Hellwig wrote: > On Thu, May 28, 2020 at 11:43:13AM -0700, Linus Torvalds wrote: >> On Wed, May 27, 2020 at 10:41 PM Christoph Hellwig wrote: >>> >>> -ssize_t __kernel_write(struct file *file, const void *buf, size_t count, >>> loff_t *pos) >>> +ssize_t

[PATCH v2 2/2] mm/gup: frame_vector: convert get_user_pages() --> pin_user_pages()

This code was using get_user_pages*(), and all of the callers so far were in a "Case 2" scenario (DMA/RDMA), using the categorization from [1]. That means that it's time to convert the get_user_pages*() + put_page() calls to pin_user_pages*() + unpin_user_pages() calls. There is some helpful

[PATCH v2 1/2] mm/gup: introduce pin_user_pages_locked()

Introduce pin_user_pages_locked(), which is nearly identical to get_user_pages_locked() except that it sets FOLL_PIN and rejects FOLL_GET. As with other pairs of get_user_pages*() and pin_user_pages() API calls, it's prudent to assert that FOLL_PIN is *not* set in the get_user_pages*() call, so

[PATCH v2 0/2] mm/gup: introduce pin_user_pages_locked(), use it in frame_vector.c

Hi, Changes since v1: * added an assert-and-return to the corresponding get_user_pages_locked() call, to keep out any externally set FOLL_PIN flag, thanks to Souptick Joarder's review for spotting that. * Added Acked-by and Reviewed by tags from David and Pakaj John Hubbard (2): mm/gup:

[tip:x86/entry 19/19] arch/x86/kernel/idt.c:177:43: error: expected ';' before ')' token

tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/entry head: 5980d208e5ef28455e9e8b08f6250b443a2f0893 commit: 5980d208e5ef28455e9e8b08f6250b443a2f0893 [19/19] x86/idt: Consolidate idt functionality config: i386-randconfig-c001-20200529 (attached as .config) compiler:

Re: [PATCH RFC] seccomp: Implement syscall isolation based on memory areas

> On May 31, 2020, at 11:57 AM, Andy Lutomirski wrote: > > Using SECCOMP_RET_USER_NOTIF is likely to be considerably more > expensive than my scheme. On a non-PTI system, my approach will add a > few tens of ns to each syscall. On a PTI system, it will be worse. > But using any kind of

[PATCH] mm/zswap.c: Fix typo accept_threshold_percent in Documentation/vm/zswap.rst

Recently, I switched over from swap-file to zramswap. When reading the Documentation/vm/zswap.rst file I fell over this typo. The parameter is called accept_threshold_percent not accept_threhsold_percent in /sys/module/zswap/parameters/ directory. Fixes: 45190f01dd402 ("mm/zswap.c: add

Re: [PATCH RESEND v8 2/2] PCI: hip: Add handling of HiSilicon HIP PCIe controller errors

Hi Shiju, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on pci/next] [also build test WARNING on linus/master v5.7-rc7] [cannot apply to pm/linux-next linux/master next-20200529] [if your patch is applied to the wrong git tree, please drop us a note to help

Re: [PATCH v30 09/20] mm: Introduce vm_ops->may_mprotect()

On Fri, May 29, 2020 at 11:28:56AM -0700, Dave Hansen wrote: > On 5/14/20 5:43 PM, Jarkko Sakkinen wrote: > > From: Sean Christopherson > > > > Add vm_ops()->may_mprotect() to check additional constrains set by a > > subsystem for a mprotect() call. > > This changelog needs some more detail

Re: [PATCH 20/30] KVM: SVM: preserve VGIF across VMCB switch

On 5/29/20 8:39 AM, Paolo Bonzini wrote: There is only one GIF flag for the whole processor, so make sure it is not clobbered when switching to L2 (in which case we also have to include the V_GIF_ENABLE_MASK, lest we confuse enable_gif/disable_gif/gif_set). When going back, L1 could in

[PATCH v2] drivers: optee: allow op-tee to access devices on the i2c bus

Some secure elements like NXP's SE050 sit on I2C buses. For OP-TEE to control this type of cryptographic devices it needs coordinated access to the bus, so collisions and RUNTIME_PM dont get in the way. This trampoline driver allow OP-TEE to access them. Signed-off-by: Jorge Ramirez-Ortiz ---

[PATCH v2 1/2] mm/gup: introduce pin_user_pages_unlocked

Introduce pin_user_pages_unlocked(), which is nearly identical to the get_user_pages_unlocked() that it wraps, except that it sets FOLL_PIN and rejects FOLL_GET. As with other pairs of get_user_pages*() and pin_user_pages() API calls, it's prudent to assert that FOLL_PIN is *not* set in the

[PATCH v2 2/2] ivtv: convert get_user_pages() --> pin_user_pages()

This code was using get_user_pages*(), in a "Case 2" scenario (DMA/RDMA), using the categorization from [1]. That means that it's time to convert the get_user_pages*() + put_page() calls to pin_user_pages*() + unpin_user_pages() calls. There is some helpful background in [2]: basically, this is a

[PATCH v2 0/2] mm/gup, media/ivtv: introduce pin_user_pages_unlocked

Hi, Here is a v2 that includes a small change that follows from Souptick's review of another very similar patchset (that added pin_user_pages_locked()) [1]. This applies on top of today's linux.git (5.7-rc7+). Changes since v1: added an assert-and-return to the corresponding

Re: [PATCH v7 1/4] bitops: Introduce the the for_each_set_clump macro

+ Emil who was working on a patch for this On Sun, May 31, 2020 at 02:00:45PM +0300, Andy Shevchenko wrote: > On Sun, May 31, 2020 at 4:11 AM Syed Nayyar Waris > wrote: > > On Sat, May 30, 2020 at 2:50 PM Andy Shevchenko > > wrote: > > > On Sat, May 30, 2020 at 11:45 AM Syed Nayyar Waris > >

Re: [PATCH] kernel: power: swap: mark a function as __init to save some memory

(adding Dan Carpenter) On Sun, 2020-05-31 at 23:00 +0200, Christophe JAILLET wrote: > 'swsusp_header_init()' is only called via 'core_initcall'. > It can be marked as __init to save a few bytes of memory. Hey Dan smatch has a full function calling tree right? Can smatch find unmarked functions

Re: [PATCH 0/2] video: fbdev: fix error handling, convert to pin_user_pages*()

On 2020-05-31 14:11, Andy Shevchenko wrote: ... JFYI, we have history.git starting from v0.01. OK, thanks for that note. According to that history.git [1], then: drivers/video/pvr2fb.c had get_user_pages_fast() support added to pvr2fb_write() back in 2004, but only for CONFIG_SH_DMA, as

RE: [RFC/RFT][PATCH] cpufreq: intel_pstate: Accept passive mode with HWP enabled

On 2020.05.31 12:29 Srinivas Pandruvada wrote: > On Sun, 2020-05-31 at 11:59 -0700, Srinivas Pandruvada wrote: >> On Sun, 2020-05-31 at 11:06 -0700, Doug Smythies wrote: >> > Hi Srinivas, >> > >> > Thanks you for your quick reply. >> > >> > On 2020.05.31 09:54 Srinivas Pandruvada wrote >> > > On

Re: [PATCH v3] fpga: dfl: afu: convert get_user_pages() --> pin_user_pages()

On Wed, May 27, 2020 at 12:10:21AM +, Wu, Hao wrote: > > -Original Message- > > From: John Hubbard > > Sent: Tuesday, May 26, 2020 6:18 AM > > To: LKML > > Cc: John Hubbard ; Xu, Yilun ; > > Wu, Hao ; Moritz Fischer ; linux- > > f...@vger.kernel.org > > Subject: [PATCH v3] fpga: dfl:

Re: [PATCH] drm/nouveau/clk/gm20b: Fix memory leak in gm20b_clk_new

On Sat, 30 May 2020 at 19:42, Dinghao Liu wrote: > > When gk20a_clk_ctor() returns an error code, pointer "clk" > should be released. It's the same when gm20b_clk_new() > returns from elsewhere following this call. This shouldn't be necessary. If a subdev constructor fails, and returns a

[PATCH] openrisc: Fix issue with argument clobbering for clone/fork

Working on the OpenRISC glibc port I found that sometimes clone was working strange. That the tls data argument sent in r7 was always wrong. Further investigation revealed that the arguments were getting clobbered in the entry code. This patch removes the code that writes to the argument

Re: [PATCH AUTOSEL 4.19 10/19] gfs2: don't call quota_unhold if quotas are not locked

Hi! > [ Upstream commit c9cb9e381985bbbe8acd2695bbe6bd24bf06b81c ] > > Before this patch, function gfs2_quota_unlock checked if quotas are > turned off, and if so, it branched to label out, which called > gfs2_quota_unhold. With the new system of gfs2_qa_get and put, we > no longer want to call

Re: [PATCH AUTOSEL 5.4 07/26] net sched: fix reporting the first-time use timestamp

Hi! > From: Roman Mashak > > [ Upstream commit b15e62631c5f19fea9895f7632dae9c1b27fe0cd ] > > When a new action is installed, firstuse field of 'tcf_t' is explicitly set > to 0. Value of zero means "new action, not yet used"; as a packet hits the > action, 'firstuse' is stamped with the

Re: [PATCH v2] devres: keep both device name and resource name in pretty name

On Mon, 1 Jun 2020 at 00:05, Andy Shevchenko wrote: > > > > On Sunday, May 31, 2020, Vladimir Oltean wrote: >> >> From: Vladimir Oltean >> >> Sometimes debugging a device is easiest using devmem on its register >> map, and that can be seen with /proc/iomem. But some device drivers have >> many

Re: [PATCH 0/2] video: fbdev: fix error handling, convert to pin_user_pages*()

On 2020-05-31 13:58, Sam Ravnborg wrote: ... Thanks, patches are now applied to drm-misc-next. They will hit -next soon, but you will have to wait until next (not the upcoming) merge window before they hit mainline linux. Sam Great! That will work out just fine. thanks, -- John

Re: [PATCH v4 2/2] clk: Allow COMPILE_TEST for subdir hisilicon in Makefile

/linux.git clk-next config: openrisc-randconfig-r021-20200531 (attached as .config) compiler: or1k-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross

Re: [PATCH RFC] seccomp: Implement syscall isolation based on memory areas

On Sun, May 31, 2020 at 11:57 AM Andy Lutomirski wrote: > > > What if there was a special filter type that ran a BPF program on each > syscall, and the program was allowed to access user memory to make its > decisions, e.g. to look at some list of memory addresses. But this > would explicitly

[PATCH] kernel: power: swap: mark a function as __init to save some memory

'swsusp_header_init()' is only called via 'core_initcall'. It can be marked as __init to save a few bytes of memory. Signed-off-by: Christophe JAILLET --- kernel/power/swap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/power/swap.c b/kernel/power/swap.c index

Re: [PATCH] staging: fbtft: fb_st7789v: make HSD20_IPS numeric and not a string

Hi Colin/Greg. On Thu, May 21, 2020 at 02:50:38PM +0100, Colin King wrote: > From: Colin Ian King > > Currently HSD20_IPS is defined as "true" and will always result in a > non-zero result even if it is defined as "false" because it is an array > and that will never be zero. Fix this by

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