[PATCH 2/2] pinctrl: qcom: Add sdm845 pinctrl driver

From: Rajendra Nayak This adds the pinctrl definitions for the TLMM of SDM845. Signed-off-by: Rajendra Nayak [bjorn: consolidated functions] Signed-off-by: Bjorn Andersson --- drivers/pinctrl/qcom/Kconfig |

[PATCH 1/2] dt-bindings: pinctrl: Add Qualcomm SDM845 TLMM binding

This adds the DeviceTree binding for the Qualcomm SDM845 TLMM block. Signed-off-by: Bjorn Andersson --- .../bindings/pinctrl/qcom,sdm845-pinctrl.txt | 176 + 1 file changed, 176 insertions(+) create mode 100644

Re: [BISECTED] v4.15-rc: Boot regression on x86_64/AMD

Hi, On Fri, Jan 05, 2018 at 04:00:25PM -0800, Linus Torvalds wrote: > On Fri, Jan 5, 2018 at 2:04 PM, Aaro Koskinen wrote: > > After v4.14, I've been unable to boot my AMD compilation box with the > > v4.15-rc mainline Linux. It just ends up in a silent reboot loop. > > > >

[PATCH v2 5/8] x86/idle: Disable IBRS entering idle and enable it on wakeup

Clear IBRS on idle entry and set it on idle exit into kernel on mwait. When we are in mwait, we are not running but if we leave IBRS on, it will affect the performance on the sibling hardware thread. So we disable IBRS and reenable it when we wake up. Signed-off-by: Tim Chen

[PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature

From: Tim Chen From: Andrea Arcangeli There are 2 ways to control IBRS 1. At boot time noibrs kernel boot parameter will disable IBRS usage Otherwise if the above parameters are not specified, the system will enable ibrs and ibpb usage if

[PATCH v2 6/8] x86/microcode: Recheck IBRS features on microcode reload

On new microcode write, check whether IBRS is present by rescanning IBRS feature. Signed-off-by: Tim Chen --- arch/x86/include/asm/spec_ctrl.h | 1 + arch/x86/kernel/cpu/microcode/core.c | 4 arch/x86/kernel/cpu/spec_ctrl.c | 18 ++ 3

[PATCH v2 3/8] x86/enter: Use IBRS on syscall and interrupts

From: Andrea Arcangeli Set IBRS upon kernel entrance via syscall and interrupts. Clear it upon exit. IBRS protects against unsafe indirect branching predictions in the kernel. The NMI interrupt save/restore of IBRS state was based on Andrea Arcangeli's implementation.

Re: [PATCH v4] gpio: winbond: add driver

On 05.01.2018 14:35, Andy Shevchenko wrote: > On Thu, 2018-01-04 at 22:46 +0100, Maciej S. Szmigiero wrote: >> This commit adds GPIO driver for Winbond Super I/Os. >> >> Currently, only W83627UHG model (also known as Nuvoton NCT6627UD) is >> supported but in the future a support for other Winbond

Re: [PATCH v2 05/13] pinctrl: Add Microsemi Ocelot SoC driver

On 13/12/2017 at 09:15:20 +0100, Linus Walleij wrote: > You need to add some comment on what is happening here and how the > bits are used because just reading these two lines is pretty hard. > > I guess f = 0, 1, 2 31 or so. > > pin->pin is also 0, 1, 2 ... 31? > > BIT(pin->pin) is pretty

[PATCH v5] gpio: winbond: add driver

This commit adds GPIO driver for Winbond Super I/Os. Currently, only W83627UHG model (also known as Nuvoton NCT6627UD) is supported but in the future a support for other Winbond models, too, can be added to the driver. A module parameter "gpios" sets a bitmask of GPIO ports to enable (bit 0 is

[PATCH v2 4/8] remoteproc: Merge rproc_ops and rproc_fw_ops

There are currently a few different schemes used for overriding fw_ops or parts of fw_ops. Merge fw_ops into rproc_ops and expose the default ELF-loader symbols so that they can be assigned by the drivers. To keep backwards compatibility with the "default" case, a driver not specifying the "load"

[PATCH v2 5/8] remoteproc: Don't handle empty resource table

Allow a NULL table_ptr to have the same meaning as a table with 0 entries, allowing a subsequent patch to skip the assignment step. A few other places in the implementation does dereference table_ptr, but they are currently all coming from rproc_handle_resources(). Signed-off-by: Bjorn Andersson

[PATCH v2 0/8] Remoteproc cleanups

The first patch removes code that became unnecessary when the recovery flow was redesigned. The following patches moves the assignment of cached_table to the resource table loader, rather than core code, which allows this to made optional and finally drops the various dummy resource tables

[PATCH v2 8/8] remoteproc: Reset table_ptr on stop

The installed resource table is no longer accessible after stopping the remote, so update table_ptr to point to the local copy. Signed-off-by: Bjorn Andersson --- Changes since v1: - None drivers/remoteproc/remoteproc_core.c | 3 +++ 1 file changed, 3 insertions(+)

[PATCH v2 7/8] remoteproc: Drop dangling find_rsc_table dummies

As the core now deals with the lack of a resource table, remove the dangling custom dummy implementations of find_rsc_table from drivers. Signed-off-by: Bjorn Andersson --- Changes since v1: - None drivers/remoteproc/qcom_adsp_pil.c | 1 -

[PATCH v2 6/8] remoteproc: Move resource table load logic to find

Extend the previous operation of finding the resource table in the ELF with the extra step of populating the rproc struct with a copy and the size. This allows drivers to override the mechanism used for acquiring the resource table, or omit it for firmware that is known not to have a resource

Re: [PATCH] ARM64: dts: meson-gxl: add internal ethernet PHY irq

Jerome Brunet writes: > Add the interrupt of the internal ethernet PHY > > Signed-off-by: Jerome Brunet > --- > Hi Kevin, > > This changes depends on the net-next changes adding interrupt support [0]. > It is really important that this change is not

Re: Bricked x86 CPU with software?

> Hi! > > On Thu 2018-01-04 17:21:36, Tim Mouraveiko wrote: > > > On Thu 2018-01-04 14:13:56, Tim Mouraveiko wrote: > > > > > > As I mentioned before, I repeatedly and fully power-cycled the > > > > > > motherboard and reset BIOS > > > > > > and etc. It made no difference. I can see that the

[PATCH 13/18] ipv6: prevent bounds-check bypass via speculative execution

Static analysis reports that 'offset' may be a user controlled value that is used as a data dependency reading from a raw6_frag_vec buffer. In order to avoid potential leaks of kernel memory values, block speculative execution of the instruction stream that could issue further reads based on an

[PATCH 04/18] arm: implement nospec_ptr()

From: Mark Rutland This patch implements nospec_ptr() for arm, following the recommended architectural sequences for the arm and thumb instruction sets. Signed-off-by: Mark Rutland Signed-off-by: Dan Williams ---

[PATCH] docs: add index entry for networking/msg_zerocopy

Currently msg_zerocopy is not included in any toctree. Sphinx emits a build warning to this effect. The other three rst files in Documentation/networking are all indexed. We can add msg_zerocopy to the toctree to enable navigation of the document via HTML kernel docs. Add msg_zerocopy to the

RE: [Intel-wired-lan] [PATCH 22/27] ixgbe: Use timecounter_reset interface

> From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Sagar Arun Kamble > Sent: Thursday, December 14, 2017 11:39 PM > To: linux-kernel@vger.kernel.org > Cc: intel-wired-...@lists.osuosl.org; Richard Cochran > ; Kamble, Sagar A >

RE: [Intel-wired-lan] [PATCH 08/27] e1000e: Use timecounter_initialize interface

> From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Sagar Arun Kamble > Sent: Thursday, December 14, 2017 11:38 PM > To: linux-kernel@vger.kernel.org > Cc: intel-wired-...@lists.osuosl.org; Richard Cochran > ; Kamble, Sagar A >

RE: [Intel-wired-lan] [PATCH 21/27] igb: Use timecounter_reset interface

> From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Sagar Arun Kamble > Sent: Thursday, December 14, 2017 11:39 PM > To: linux-kernel@vger.kernel.org > Cc: intel-wired-...@lists.osuosl.org; Richard Cochran > ; Kamble, Sagar A >

RE: [Intel-wired-lan] [PATCH 22/27] ixgbe: Use timecounter_reset interface

> -Original Message- > From: Brown, Aaron F > Sent: Friday, January 5, 2018 8:34 PM > To: 'Sagar Arun Kamble' ; linux- > ker...@vger.kernel.org > Cc: intel-wired-...@lists.osuosl.org; Richard Cochran > ; Kamble, Sagar A >

Re: [PATCH 06/18] x86, barrier: stop speculation for failed access_ok

On Fri, Jan 5, 2018 at 6:52 PM, Linus Torvalds wrote: > On Fri, Jan 5, 2018 at 5:10 PM, Dan Williams wrote: >> From: Andi Kleen >> >> When access_ok fails we should always stop speculating. >> Add the required

Re: [PATCH v4 01/13] x86/retpoline: Add initial retpoline support

On 01/04/18 18:00, David Woodhouse wrote: > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index d4fc98c..1009d1a 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -429,6 +429,19 @@ config GOLDFISH > def_bool y > depends on X86_GOLDFISH > > +config RETPOLINE >

[PATCH] f2fs: allow quota to use reserved blocks

This patch allows quota to use reserved blocks all the time. Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 9 ++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index e5554b851fd8..827549077b81 100644 ---

[PATCH 0/2] fix kernel-docs for struct iio_trigger

This set is a re-spin of [PATCH] iio: add kernel-doc '@owner' Patch 1 is the original patch. Adds a kernel-doc description for field @owner clearing a sphinx build warning when building kernel documentation. Patch 2 adds field identifier for @use_count. Currently this field has a

Re: [PATCH] ACPI / WMI: Call acpi_wmi_init() later

On Sat, Jan 06, 2018 at 12:30:23AM +0100, Rafael J. Wysocki wrote: > On Wed, Jan 3, 2018 at 12:49 PM, Rafael J. Wysocki wrote: > > From: Rafael J. Wysocki > > > > Calling acpi_wmi_init() at the subsys_initcall() level causes ordering > > issues to

Re: [PATCH 4.4 00/37] 4.4.110-stable review

Hi Hugh, Thank you very much for your very thoughtful input. I quiet positive this problem is PTI regression, because exactly the same problem I see with kernel 4.1 to which I back-ported all the necessary PTI patches from 4.4.110. I will provide this thread with more information as I

[PATCH 01/18] asm-generic/barrier: add generic nospec helpers

From: Mark Rutland Under speculation, CPUs may mis-predict branches in bounds checks. Thus, memory accesses under a bounds check may be speculated even if the bounds check fails, providing a primitive for building a side channel. This patch adds helpers which can be used

[PATCH 03/18] arm64: implement nospec_ptr()

From: Mark Rutland This patch implements nospec_ptr() for arm64, following the recommended architectural sequence. Signed-off-by: Mark Rutland Signed-off-by: Will Deacon Cc: Dan Williams Cc: Peter

[PATCH 2/2 RESEND] iio: add field identifier for @use_count kernel-doc

Kernel-doc for @use_count does not currently have a field identifier. All the rest of the fields do. @use_count is used internally and should not be accessed directly by the driver so it should be marked as so. Add [INTERN] identifier to @use_count field. Signed-off-by: Tobin C. Harding

[PATCH 0/2 RESEND] fix kernel-docs for struct iio_trigger

This set is a re-spin of [PATCH] iio: add kernel-doc '@owner' Patch 1 is the original patch. Adds a kernel-doc description for field @owner clearing a sphinx build warning when building kernel documentation. Patch 2 adds field identifier for @use_count. Currently this field has a

[PATCH 1/2 RESEND] iio: add kernel-doc for field @owner

When building kernel documentation sphinx emits the following warning warning: No description found for parameter 'owner' Add description for struct member 'owner'. Signed-off-by: Tobin C. Harding --- include/linux/iio/trigger.h | 1 + 1 file changed, 1 insertion(+)

Re: [PATCH 12/18] Thermal/int340x: prevent bounds-check bypass via speculative execution

On Fri, 2018-01-05 at 17:10 -0800, Dan Williams wrote: > Static analysis reports that 'trip' may be a user controlled value > that > is used as a data dependency to read '*temp' from the 'd->aux_trips' > array.  In order to avoid potential leaks of kernel memory values, > block > speculative

[PATCH] USB: ohci: da8xx: remove clk con_id

The ohci-da8xx device only has one clock, so a con_id is not needed, so remove it. This way we don't have to add an unnecessary property to the device tree bindings for the clock. Signed-off-by: David Lechner --- drivers/usb/host/ohci-da8xx.c | 2 +- 1 file changed, 1

[PATCH 0/7] Initial Allwinner H6 support

This patchset adds initial support for the Allwinner H6 SoC. It's quite different from earlier Allwinner SoCs. For example, the memory map is refactored, and the CCU is rearranged. It's also the first Allwinner SoC with PCI Express interface, and the second one with USB 3.0 (the first one is

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Re: [PATCH 05/23] x86, kaiser: unmap kernel from userspace page tables (core patch)

Hi Jiri, Thanks for the fix, comments inline. On 2018/1/6 2:19, Jiri Kosina wrote: > > [ adding Hugh ] > > On Thu, 4 Jan 2018, Dave Hansen wrote: > >>> BTW, we have just reported a bug caused by kaiser[1], which looks like >>> caused by SMEP. Could you please help to have a look? >>> >>> [1]

RE: [Intel-wired-lan] [PATCH 09/27] igb: Use timecounter_initialize interface

> From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Sagar Arun Kamble > Sent: Thursday, December 14, 2017 11:38 PM > To: linux-kernel@vger.kernel.org > Cc: intel-wired-...@lists.osuosl.org; Richard Cochran > ; Kamble, Sagar A >

Re: [PATCH 01/18] asm-generic/barrier: add generic nospec helpers

On Fri, Jan 5, 2018 at 6:55 PM, Linus Torvalds wrote: > On Fri, Jan 5, 2018 at 5:09 PM, Dan Williams wrote: >> +#ifndef nospec_ptr >> +#define nospec_ptr(ptr, lo, hi) >>\ > > Do we actually

Re: [alsa-devel] [PATCH v6 07/14] regmap: Add SoundWire bus support

On Fri, Jan 05, 2018 at 11:22:15AM -0600, Pierre-Louis Bossart wrote: > On 1/5/18 11:04 AM, Mark Brown wrote: > >On Thu, Dec 14, 2017 at 11:19:38AM +0530, Vinod Koul wrote: > > > >>+ /* SoundWire register address are contiguous */ > >>+ if (config->reg_stride != 0) > >>+ return

Re: [alsa-devel] [PATCH v6 07/14] regmap: Add SoundWire bus support

On Fri, Jan 05, 2018 at 05:05:52PM +, Mark Brown wrote: > On Thu, Dec 14, 2017 at 11:19:38AM +0530, Vinod Koul wrote: > > SoundWire bus provides sdw_read() and sdw_write() APIs for Slave > > devices to program the registers. Provide support in regmap for > > SoundWire bus. > > I can't apply

Re: [PATCH v2 5/6] clocksource: Add a new timer-ingenic driver

Hi Rob, Le sam. 6 janv. 2018 à 0:27, Rob Herring a écrit : On Wed, Jan 3, 2018 at 3:56 PM, Paul Cercueil wrote: Hi, Le mer. 3 janv. 2018 à 22:08, Rob Herring a écrit : On Mon, Jan 01, 2018 at 03:33:43PM +0100, Paul Cercueil

[PATCH v2 3/8] remoteproc: Clone rproc_ops in rproc_alloc()

In order to allow rproc_alloc() to, in a future patch, update entries in the "ops" struct we need to make a local copy of it. Signed-off-by: Bjorn Andersson --- Changes since v1: - None drivers/remoteproc/remoteproc_core.c | 9 - include/linux/remoteproc.h

Re: [BISECTED] v4.15-rc: Boot regression on x86_64/AMD

On Fri, Jan 5, 2018 at 2:04 PM, Aaro Koskinen wrote: > > After v4.14, I've been unable to boot my AMD compilation box with the > v4.15-rc mainline Linux. It just ends up in a silent reboot loop. > > I bisected this to: > > commit fa564ad9636651fd11ec2c79c48dee844066f73a >

[PATCH v2 1/8] remoteproc: Remove depricated crash completion

The crash handling now happens in a single execution context, so there's no longer a need for a completion to synchronize this. Signed-off-by: Bjorn Andersson --- Changes since v1: - None drivers/remoteproc/remoteproc_core.c | 10 --

[PATCH v2 1/5] ARM64: dts: meson: uart: fix address space range

The address space range is actually 0x18, fixed here. Signed-off-by: Yixun Lan --- arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 4 ++-- arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 10 +- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git

[PATCH v2 3/5] ARM64: dts: meson-axg: uart: Add the pinctrl info description

Describe the pinctrl info for the UART controller which is found in the Meson-AXG SoCs. Signed-off-by: Yixun Lan --- arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 97 ++ 1 file changed, 97 insertions(+) diff --git

[PATCH v2 4/5] ARM64: dts: meson-axg: complete the pinctrl info for UART_AO_A

Explictly request the pinctrl info for the UART_AO_A controller, otherwise we may need to rely on bootloader for the initialization. Acked-by: Jerome Brunet Signed-off-by: Yixun Lan --- arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 2 ++ 1 file

[PATCH v2 2/5] ARM64: dts: meson-axg: uart: drop legacy compatible name from EE UART

When update the clock info for the UART controller in the EE domain, the driver explicitly require 'pclk' in order to work properly. With current logic of the code, the driver will go for the legacy clock probe routine[1] if it find current compatible string match to 'amlogic,meson-uart', which

[PATCH v2 0/5] ARM64: dts: meson-axg: UART DT updates

HI Kevin These are the UART DT updates for the Meson-AXG platform. The patch 1 is a general fix. Other patches are about adding clock & pinctrl info, then using them. Last patch enable UART_A which connect to a BT module on the S400 board. Note: This series depend on previous UART_AO clock

Re: [PATCH] leaking_addresses: add files to skip

On Fri, Jan 5, 2018 at 2:59 PM, Tobin C. Harding wrote: > Script currently times out when parsing the following files: > > /proc/kallsyms > /proc/sched_debug > /proc/PID/smaps Seems like kallsyms would be one to absolutely scan... it shouldn't cause hangs

[PATCH v2 5/5] ARM64: dts: meson-axg: enable the UART_A controller

The UART_A is connected to a BT module on the S400 board. Acked-by: Jerome Brunet Signed-off-by: Yixun Lan --- arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 7 +++ 1 file changed, 7 insertions(+) diff --git

[PATCH] xtensa: fix futex_atomic_cmpxchg_inatomic

Return 0 if the operation was successful, not the userspace memory value. Check that userspace value equals passed oldval, not itself. Don't update *uval if the value wasn't read from userspace memory. This fixes process hang due to infinite loop in futex_lock_pi. It also fixes a bunch of glibc

Re: [PATCH 12/18] Thermal/int340x: prevent bounds-check bypass via speculative execution

On Fri, Jan 5, 2018 at 5:53 PM, Srinivas Pandruvada wrote: > On Fri, 2018-01-05 at 17:10 -0800, Dan Williams wrote: >> Static analysis reports that 'trip' may be a user controlled value >> that >> is used as a data dependency to read '*temp' from the

Re: [PATCH 00/18] prevent bounds-check bypass via speculative execution

Dan Williams writes: > Quoting Mark's original RFC: > > "Recently, Google Project Zero discovered several classes of attack > against speculative execution. One of these, known as variant-1, allows > explicit bounds checks to be bypassed under speculation, providing an

Re: [PATCH] selftests: seccomp: fix compile error seccomp_bpf

On 5 January 2018 at 22:01, Anders Roxell wrote: > aarch64-linux-gnu-gcc -Wl,-no-as-needed -Wall > -lpthread seccomp_bpf.c -o seccomp_bpf > seccomp_bpf.c: In function 'tracer_ptrace': > seccomp_bpf.c:1720:12: error: '__NR_open' undeclared > (first use in this

RE: [Intel-wired-lan] [PATCH 1/1] timecounter: Make cyclecounter struct part of timecounter struct

> From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Jeff Kirsher > Sent: Wednesday, December 6, 2017 8:25 AM > To: Kamble, Sagar A ; linux- > ker...@vger.kernel.org > Cc: alsa-de...@alsa-project.org; linux-r...@vger.kernel.org; >

[PATCH 3/7] pinctrl: sunxi: add support for the Allwinner H6 main pin controller

The Allwinner H6 SoC has two pin controllers, one main controller (called CPUX-PORT in user manual) and one controller in CPUs power domain (called CPUS-PORT in user manual). This commit introduces support for the main pin controller on H6. The pin bank A and B are not wired out and hidden from

RE: [Intel-wired-lan] [PATCH 20/27] e1000e: Use timecounter_reset interface

> From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Sagar Arun Kamble > Sent: Thursday, December 14, 2017 11:39 PM > To: linux-kernel@vger.kernel.org > Cc: intel-wired-...@lists.osuosl.org; Richard Cochran > ; Kamble, Sagar A >

[PATCH v2 2/8] remoteproc: Cache resource table size

We don't re-read the resource table during a recovery, so it is possible in the recovery path that the resource table has a different size than cached_table. Store the original size of cached_table to avoid these getting out of sync. Signed-off-by: Bjorn Andersson ---

Re: [RFP] iio: Support of gesture sensor as a standard IIO sensor

> >From an IIO sensor point of view A Gesture sensor: > Outputs > A pre defined activity type > WAKE > TILT > GLANCE > PICK_UP >  & >  more > > A user defined activity type as "string" > > Inputs >

Re: Bricked x86 CPU with software?

> On Thu, Jan 4, 2018 at 4:00 PM, Tim Mouraveiko wrote: > > Pavel, > > > > As I mentioned before, I repeatedly and fully power-cycled the motherboard > > and reset BIOS > > and etc. It made no difference. I can see that the processor was not > > drawing any power. The > >

[PATCH 5/7] clk: sunxi-ng: add support for the Allwinner H6 CCU

The Allwinner H6 SoC has a CCU which has been largely rearranged. Add support for it in the sunxi-ng CCU framework. Signed-off-by: Icenowy Zheng --- .../devicetree/bindings/clock/sunxi-ccu.txt|1 + drivers/clk/sunxi-ng/Kconfig |5 +

[PATCH 6/7] arm64: allwinner: h6: add the basical Allwinner H6 DTSI file

Allwinner H6 is a new SoC with Cortex-A53 cores from Allwinner, with its memory map fully reworked and some high-speed peripherals (PCIe, USB 3.0) introduced. This commit adds the basical DTSI file of it, including the clock support and UART support. Signed-off-by: Icenowy Zheng

Re: [Ocfs2-devel] [PATCH v2] ocfs2: try a blocking lock before return AOP_TRUNCATED_PAGE

Hi Andrew, >>> Andrew Morton 01/06/18 4:50 AM >>> On Thu, 04 Jan 2018 23:31:12 -0700 "Gang He" wrote: > Happy new year. > Could you help to pick up this patch, which is used to fix a old patch > 1cce4df04f37. > If we have not this patch, some

Re: [PATCH 06/18] x86, barrier: stop speculation for failed access_ok

On Fri, Jan 5, 2018 at 5:10 PM, Dan Williams wrote: > From: Andi Kleen > > When access_ok fails we should always stop speculating. > Add the required barriers to the x86 access_ok macro. Honestly, this seems completely bogus. The description is

Re: [PATCH 01/18] asm-generic/barrier: add generic nospec helpers

On Fri, Jan 5, 2018 at 5:09 PM, Dan Williams wrote: > +#ifndef nospec_ptr > +#define nospec_ptr(ptr, lo, hi) > \ Do we actually want this horrible interface? It just causes the compiler - or inline asm - to generate worse

Re: [PATCH 4.4 00/37] 4.4.110-stable review

On Fri, 2018-01-05 at 15:28 -0800, Hugh Dickins wrote: > On Fri, Jan 5, 2018 at 6:03 AM, Mike Galbraith wrote: > > On Fri, 2018-01-05 at 14:34 +0100, Greg Kroah-Hartman wrote: > >> > >> Ok, we found two patches that were missing in 4.4-stable that were in > >> the SLES12 tree

[PATCH V2 1/2] ARM: dts: imx6ul: add 696MHz operating point

Add 696MHz operating point according to datasheet (Rev. 0, 12/2015). Signed-off-by: Anson Huang --- arch/arm/boot/dts/imx6ul.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi index d5181f8..963e169

[PATCH V2 2/2] cpufreq: imx6q: add 696MHz operating point for i.mx6ul

Add 696MHz operating point for i.MX6UL, only for those parts with speed grading fuse set to 2b'10 supports 696MHz operating point, so, speed grading check is also added for i.MX6UL in this patch, the clock tree for each operating point are as below: 696MHz: pll1

RE: [PATCH 2/2] cpufreq: imx6q: add 696MHz operating point for i.mx6ul

Hi, Rafael Best Regards! Anson Huang > -Original Message- > From: rjwyso...@gmail.com [mailto:rjwyso...@gmail.com] On Behalf Of Rafael > J. Wysocki > Sent: 2018-01-05 8:21 PM > To: Anson Huang > Cc: linux-arm-ker...@lists.infradead.org; devicet...@vger.kernel.org;

Re: [PATCH 06/18] x86, barrier: stop speculation for failed access_ok

On Fri, Jan 5, 2018 at 6:52 PM, Linus Torvalds wrote: > > The fact is, we have to stop speculating when access_ok() does *not* > fail - because that's when we'll actually do the access. And it's that > access that needs to be non-speculative. I also suspect we

Re: [PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature

On 01/05/2018 06:12 PM, Tim Chen wrote: > .macro ENABLE_IBRS > - ALTERNATIVE "jmp .Lskip_\@", "", X86_FEATURE_SPEC_CTRL > + testl $1, dynamic_ibrs > + jz .Lskip_\@ There was an earlier suggestion to use STATIC_JUMP_IF_... here. That's a good suggestion, but we encountered

[PATCH] mm: ratelimit end_swap_bio_write() error

Use the ratelimited printk() version for swap-device write error reporting. We can use ZRAM as a swap-device, and the tricky part here is that zsmalloc() stores compressed objects in memory, thus it has to allocates pages during swap-out. If the system is short on memory, then we begin to flood

[PATCH 4/7] clk: sunxi-ng: Support fixed post-dividers on NKMP style clocks

On the new Allwinner H6 SoC, multiple PLL's are NMP style clocks (modelled as NKMP with no K) and have fixed post-dividers. Add fixed post divider support to the NKMP style clocks. Signed-off-by: Icenowy Zheng --- drivers/clk/sunxi-ng/ccu_nkmp.c | 20 +---

[git pull] Input updates for v4.15-rc6

Hi Linus, Please pull from: git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git for-linus to receive updates for the input subsystem. Just a few driver fixups, nothing exciting. Changelog: - Aaron Ma (1): Input: elantech - add new icbody type 15 Anthony Kim

[PATCH v3 1/4] remoteproc: Add remote processor coredump support

From: Sarangdhar Joshi As the remoteproc framework restarts the remote processor after a fatal event, it's useful to be able to acquire a coredump of the remote processor's state, for post mortem debugging. This patch introduces a mechanism for extracting the memory

[PATCH v3 0/4] Remoteproc core dump support

Picking up Sarangdhar's original patches for adding core dump support to remoteproc. Based on the recently proposed "load resources" hook this registers segments of the Qualcomm MDT file as dump segments which are used to build an ELF file representing the various memory segments in the case of a

[PATCH v3] pinctrl: Add Microsemi Ocelot SoC driver

The Microsemi Ocelot SoC has a few pins that can be used as GPIOs or take multiple other functions. Add a driver for the pinmuxing and the GPIOs. There is currently no support for interrupts. Signed-off-by: Alexandre Belloni --- - use

[PATCH v3 3/4] soc: qcom: mdt-loader: Return relocation base

In order to implement support for grabbing core dumps in remoteproc it's necessary to know the relocated base of the image, as the offsets from the virtual memory base might not be based on the physical address. Return the adjusted physical base address to the caller. Signed-off-by: Bjorn

[RFP] iio: Support of gesture sensor as a standard IIO sensor

Hi Jonathan and Everyone, The Intel Integrated sensor hub (ISH) on some platforms have ability to identify gestures. This is available on some Android platforms. We want to bring in this capability to other Linux flavors also.  This algorithm for gesture recognition executes in ISH as this is a

[PATCH v3 4/4] remoteproc: qcom: Register segments for core dump

From: Sarangdhar Joshi Register MDT segments with the remoteproc core dump functionality in order to include them in a core dump, in case of a recovery of the remote processor. Signed-off-by: Sarangdhar Joshi Signed-off-by: Bjorn Andersson

[PATCH v3 2/4] remoteproc: Rename "load_rsc_table" to "parse_fw"

The resource table is just one possible source of information that can be extracted from the firmware file. Generalize this interface to allow drivers to override this with parsers of other types of information. Signed-off-by: Bjorn Andersson --- Changes since v2: -

[PATCH 3/3] arm64: tegra: remove tegra132 norrin's nonstandard 'backlight-boot-off'

This was used out-of-tree as a hack for resolving issues where some systems expect the backlight to turn on automatically at boot, while others expect to manage the backlight status via a DRM/panel driver. Those issues have since been fixed upstream in pwm_bl.c without device tree hacks, and so

[PATCH 1/3] ARM: dts: rockchip: drop veyron's nonstandard 'backlight-boot-off'

This was used out-of-tree as a hack for resolving issues where some systems expect the backlight to turn on automatically at boot, while others expect to manage the backlight status via a DRM/panel driver. Those issues have since been fixed upstream in pwm_bl.c without device tree hacks, and so

[PATCH 10/18] qla2xxx: prevent bounds-check bypass via speculative execution

Static analysis reports that 'handle' may be a user controlled value that is used as a data dependency to read 'sp' from the 'req->outstanding_cmds' array. In order to avoid potential leaks of kernel memory values, block speculative execution of the instruction stream that could issue reads based

[PATCH 14/18] ipv4: prevent bounds-check bypass via speculative execution

Static analysis reports that 'offset' may be a user controlled value that is used as a data dependency reading from a raw_frag_vec buffer. In order to avoid potential leaks of kernel memory values, block speculative execution of the instruction stream that could issue further reads based on an

[PATCH 05/18] x86: implement nospec_barrier()

The new speculative execution barrier, nospec_barrier(), ensures that any userspace controllable speculation doesn't cross the boundary. Any user observable speculative activity on this CPU thread before this point either completes, reaches a state it can no longer cause an observable activity,

[PATCH 08/18] carl9170: prevent bounds-check bypass via speculative execution

Static analysis reports that 'queue' may be a user controlled value that is used as a data dependency to read from the 'ar9170_qmap' array. In order to avoid potential leaks of kernel memory values, block speculative execution of the instruction stream that could issue reads based on an invalid

[PATCH 06/18] x86, barrier: stop speculation for failed access_ok

From: Andi Kleen When access_ok fails we should always stop speculating. Add the required barriers to the x86 access_ok macro. Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: Arnd Bergmann

[PATCH 09/18] p54: prevent bounds-check bypass via speculative execution

Static analysis reports that 'queue' may be a user controlled value that is used as a data dependency to read from the 'priv->qos_params' array. In order to avoid potential leaks of kernel memory values, block speculative execution of the instruction stream that could issue reads based on an

[PATCH 07/18] [media] uvcvideo: prevent bounds-check bypass via speculative execution

Static analysis reports that 'index' may be a user controlled value that is used as a data dependency to read 'pin' from the 'selector->baSourceID' array. In order to avoid potential leaks of kernel memory values, block speculative execution of the instruction stream that could issue reads based

[PATCH 02/18] Documentation: document nospec helpers

From: Mark Rutland Document the rationale and usage of the new nospec*() helpers. Signed-off-by: Mark Rutland Signed-off-by: Will Deacon Cc: Dan Williams Cc: Jonathan Corbet Cc: Peter

[PATCH 00/18] prevent bounds-check bypass via speculative execution

Quoting Mark's original RFC: "Recently, Google Project Zero discovered several classes of attack against speculative execution. One of these, known as variant-1, allows explicit bounds checks to be bypassed under speculation, providing an arbitrary read gadget. Further details can be found on the

[PATCH 18/18] userns: prevent bounds-check bypass via speculative execution

Static analysis reports that 'pos' may be a user controlled value that is used as a data dependency determining which extent to return out of 'map'. In order to avoid potential leaks of kernel memory values, block speculative execution of the instruction stream that could issue further reads based

[PATCH 12/18] Thermal/int340x: prevent bounds-check bypass via speculative execution

Static analysis reports that 'trip' may be a user controlled value that is used as a data dependency to read '*temp' from the 'd->aux_trips' array. In order to avoid potential leaks of kernel memory values, block speculative execution of the instruction stream that could issue reads based on an

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