AIO operation and CMSG

Hi, I am working on the user space library providing a wrapper to the AF_ALG user space interface [1]. The AF_ALG interface supports asynchronous operation which is utilized with the io_* system calls, including io_submit. All works as expected. The syscall io_submit sends data to the kernel a

Re: [PATCHv2 5/7] printk: allow kmsg to be encrypted using public key encryption

On Sun, Jan 14, 2018 at 10:48:01AM +0900, Sergey Senozhatsky wrote: > Ccing Kees, Peter, Andrew, Steven > > On (01/13/18 23:34), Dan Aloni wrote: > > This commit enables the kernel to encrypt the free-form text that > > is generated by printk() before it is brought up to `dmesg` in > > userspace.

Re: [PATCH] e1000e: Fix e1000_check_for_copper_link_ich8lan return value.

On Wed, Jan 10, 2018 at 10:34:43AM +0900, Benjamin Poirier wrote: > On 2018/01/10 01:29, rwar...@gmx.de wrote: > > hallo > > > > any chance to get this patch into stable and 4.15 ? > > > > https://marc.info/?l=linux-kernel&m=151297726823919&w=2 > > > > It was part of the last network pull reque

Re: [PATCH v2] Coccinelle: kzalloc-simple: Rename kzalloc-simple to zalloc-simple

On Sun, 14 Jan 2018, Himanshu Jha wrote: > Rename kzalloc-simple to zalloc-simple since now the rule is not > specific to kzalloc function only, but also to many other zero memory > allocating functions specified in the rule. > > Suggested-by: SF Markus Elfring > Signed-off-by: Himanshu Jha A

Re: [PATCH] nvme-pci: calculate iod and avg_seg_size just before use them

The calculation of iod and avg_seg_size maybe meaningless if nvme_pci_use_sgls returns before uses them. So calculate just before use them. The compiler will do the right thing here, but I see what you mean. I think Christoph has some SGL improvements coming, though, that will obviate this.

[PATCH net-next v3] xfrm: Add ESN support for IPSec HW offload

From: Yossef Efraim This patch adds ESN support to IPsec device offload. Adding new xfrm device operation to synchronize device ESN. Signed-off-by: Yossef Efraim --- Changes from v1: - Added documentation Changes from v2: - Due to Shannon Nelson's request, xfrm_dev_state_add() fails if ESN i

Re: [PATCH] net/mlx4_en: ensure rx_desc updating reaches HW before prod db updating

Thanks Jianchao for your patch. And Thank you guys for your reviews, much appreciated. I was off-work on Friday and Saturday. On 14/01/2018 4:40 AM, jianchao.wang wrote: Dear all Thanks for the kindly response and reviewing. That's really appreciated. On 01/13/2018 12:46 AM, Eric Dumazet wrot

Re: [PATCH 0/2] PM / core: genpd fix and pm_runtime_force_suspend|resume() rework

Hi Rafael, On Sat, Jan 13, 2018 at 1:38 AM, Rafael J. Wysocki wrote: > On Friday, January 12, 2018 3:31:09 PM CET Geert Uytterhoeven wrote: >> On Fri, Jan 12, 2018 at 2:00 PM, Rafael J. Wysocki >> wrote: >> > This comes from the recent discussion/testing effort that ensued after my >> > pm_runt

Re: [PATCH V3 1/2] nvme: split resetting state into reset_prepate and resetting

Currently, the ctrl->state will be changed to NVME_CTRL_RESETTING before queue the reset work. This is not so strict. There could be a big gap before the reset_work callback is invoked. In addition, there is some disable work in the reset_work callback, strictly speaking, not part of reset work,

Re: [PATCH V3 2/2] nvme-pci: fix the timeout case when reset is ongoing

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index e477c35..0530432 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -1212,19 +1212,26 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) } /* -* Shutdown

[PATCH] kconfig: Document SYMBOL_OPTIONAL logic

Not obvious, especially if you don't already know how choices are implemented. No functional changes. Only comments added. Signed-off-by: Ulf Magnusson --- scripts/kconfig/menu.c | 9 + 1 file changed, 9 insertions(+) diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index 9

[tip:x86/pti] x86/pti: Fix !PCID and sanitize defines

Commit-ID: f10ee3dcc9f0aba92a5c4c064628be5200765dc2 Gitweb: https://git.kernel.org/tip/f10ee3dcc9f0aba92a5c4c064628be5200765dc2 Author: Thomas Gleixner AuthorDate: Sun, 14 Jan 2018 00:23:57 +0100 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 10:45:53 +0100 x86/pti: Fix !PCID

[PATCH] x86,perf: Disable intel_bts when PTI

The intel_bts driver does not use the 'normal' BTS buffer we allocated space for in the cpu_entry_area but instead uses the memory allocated for the perf AUX buffer. This obviously comes apart when using PTI because then the kernel mapping; which includes that AUX buffer memory; disappears. For

Re: [PATCH] drviers/nvme/target: fix max dup length for kstrndup

Looks good, Reviewed-by: Sagi Grimberg

Re: [PATCH v2] iio: accel: bmc150: Check for a second ACPI device for BOSC0200

On Tue, 9 Jan 2018 21:24:01 + Jeremy Cline wrote: > On 12/10/2017 12:21 PM, Jonathan Cameron wrote: > > On Wed, 6 Dec 2017 17:52:34 + > > Jeremy Cline wrote: > > > >> Some BOSC0200 acpi_device-s describe two accelerometers in a single ACPI > >> device. Check for a companion device and

[tip:x86/pti] security/Kconfig: Correct the Documentation reference for PTI

Commit-ID: a237f762681e2a394ca67f21df2feb2b76a3609b Gitweb: https://git.kernel.org/tip/a237f762681e2a394ca67f21df2feb2b76a3609b Author: W. Trevor King AuthorDate: Fri, 12 Jan 2018 15:24:59 -0800 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 11:42:10 +0100 security/Kconfig: Co

Re: [PATCH 12/14] iio: adc: at91-sama5d2_adc: support for position and pressure channels

On Mon, 8 Jan 2018 15:12:52 +0100 Ludovic Desroches wrote: > Hi Jonathan, Eugen, > > On Sat, Jan 06, 2018 at 03:05:37PM +, Jonathan Cameron wrote: > > On Thu, 4 Jan 2018 17:17:54 +0200 > > Eugen Hristev wrote: > > > > > On 29.12.2017 19:02, Jonathan Cameron wrote: > > > > On Fri, 22 De

Re: [PATCH 5/8] DT/arm,gic-v3: add save-suspend-state property

On Fri, 12 Jan 2018 21:24:19 +, Derek Basehore wrote: > > This adds documentation for the new save-suspend-state property. This > property enables saving and restoring the GIC for when it loses state > in system suspend. > > Signed-off-by: Derek Basehore Please CC the DT maintainers for all

Re: [PATCH] x86,perf: Disable intel_bts when PTI

On Sun, Jan 14, 2018 at 11:27:13AM +0100, Peter Zijlstra wrote: > > The intel_bts driver does not use the 'normal' BTS buffer we allocated > space for in the cpu_entry_area but instead uses the memory allocated > for the perf AUX buffer. > > This obviously comes apart when using PTI because then

Re: [PATCH v2] iio: adc: max9611: fix module auto-loading

On Wed, 10 Jan 2018 12:01:07 +0100 Javier Martinez Canillas wrote: > Hello Jonathan, > > On Mon, Jan 1, 2018 at 10:53 AM, Jonathan Cameron wrote: > > [snip] > > > > > I may well be missing some subtle detail of course having spent only a few > > minute looking at this! > > > > Your underst

[tip:x86/pti] x86,perf: Disable intel_bts when PTI

Commit-ID: 99a9dc98ba52267ce5e062b52de88ea1f1b2a7d8 Gitweb: https://git.kernel.org/tip/99a9dc98ba52267ce5e062b52de88ea1f1b2a7d8 Author: Peter Zijlstra AuthorDate: Sun, 14 Jan 2018 11:27:13 +0100 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 11:42:10 +0100 x86,perf: Disable in

Re: [PATCH] x86,perf: Disable intel_bts when PTI

On Sun, 14 Jan 2018, Greg KH wrote: > On Sun, Jan 14, 2018 at 11:27:13AM +0100, Peter Zijlstra wrote: > > > > The intel_bts driver does not use the 'normal' BTS buffer we allocated > > space for in the cpu_entry_area but instead uses the memory allocated > > for the perf AUX buffer. > > > > This

Re: [PATCH 6/8] irqchip/gic-v3-its: add ability to resend MAPC on resume

On Fri, 12 Jan 2018 21:24:20 +, Derek Basehore wrote: > > This adds a DT-binding to resend the MAPC command to an ITS node on This isn't a DT binding. That's the driver implementation. The binding is what you put in Documentation/device-tree... > resume. If the ITS is powered down during sus

Re: [PATCH] iio: adc: aspeed: Fix error handling path

On Mon, 8 Jan 2018 07:47:36 +0100 Christophe JAILLET wrote: > The labels and branching order of the error path of 'aspeed_adc_probe()' > are broken. > Re-order the labels and goto statements. > > Signed-off-by: Christophe JAILLET Applied to the fixes-togreg-post-rc1 branch of iio.git. The pa

Re: [PATCH 8/8] irqchip/gic-v3: add power down/up sequence

On Fri, 12 Jan 2018 21:24:22 +, Derek Basehore wrote: > > This adds the implementation specific power down/up sequence for the > GIC-500 and the GIC-600 (which are implementations of the GIC-v3 > specification). This allows the LPI pending information to be properly > flushed on suspend if the

Re: [PATCH v2] iio: adc: driver for ti adc081s/adc101s/adc121s

On Sat, 13 Jan 2018 20:29:12 +0100 Milan Stevanovic wrote: > From fab687d20ba46d78439b6cdaf0d40b78ae68222c Mon Sep 17 00:00:00 2001 > From: Milan Stevanovic > Date: Sun, 7 Jan 2018 21:44:33 +0100 > Subject: [PATCH v2] iio: adc: driver for ti adc081s/adc101s/adc121s > > Add Linux device dr

[PATCH] kernel:bpf Remove structure passing and assignment to save stack and no coping structures

>> Use pointers to structure as arguments to function instead of coping >> structures and less stack size. Also transfer TNUM(_v, _m) to >> tnum.h file to be used in differnet files for creating anonymous structures >> statically. >> >> Signed-off-by: Karim Eshapa ... >> +/* Statically tnum consta

Re: [PATCH v7 2/4] i2c-acpi : exclude ARA address for smbus device

On Sat, 13 Jan 2018 14:37:03 +0100 Marc CAPDEVILLE wrote: > Somme ACPI enumerated devices are known to support smbus alert protocol. > Theses devices may be miss-enumerated with the reserved smbus ARA address. > > This is the case on Asus T100 tablet where cm3218 ambiant light sensor > expose tw

[PATCH 0/2] kconfig: 'if' and automatic submenu creation documentation

These together should make the automatic submenu logic a lot clearer. Ulf Magnusson (2): kconfig: Document 'if' flattening logic kconfig: Improve auto. menu documentation accuracy scripts/kconfig/menu.c | 33 + 1 file changed, 29 insertions(+), 4 deletions(-)

Re: [REGRESSION][v4.14.y][v4.15] x86/intel_rdt/cqm: Improve limbo list processing

On Fri, 12 Jan 2018, Joseph Salisbury wrote: > Hi Vikas, > > A kernel bug report was opened against Ubuntu [0].  After a kernel > bisect, it was found that reverting the following commit resolved this bug: > > commit 24247aeeabe99eab13b798c2dec066dd6f07 > Author: Vikas Shivappa > Date:   Tu

[PATCH 1/2] kconfig: Document 'if' flattening logic

It is not obvious that this refers to an 'if', making the code pretty cryptic: if (menu->list && (!menu->prompt || !menu->prompt->text)) { Kconfig keeps the 'if' menu nodes even after flattening. Reflect that in the example to be accurate. No functional changes. Only comments added. Sig

[PATCH 1/2] kconfig: Document 'if' flattening logic

It is not obvious that this refers to an 'if', making the code pretty cryptic: if (menu->list && (!menu->prompt || !menu->prompt->text)) { Kconfig keeps the 'if' menu nodes even after flattening. Reflect that in the example to be accurate. No functional changes. Only comments added. Sig

[PATCH 2/2] kconfig: Improve auto. menu documentation accuracy

An 'if', 'menu', or 'choice' that depends on a preceding symbol will also generate a submenu. No functional changes. Only comments updated. Signed-off-by: Ulf Magnusson --- scripts/kconfig/menu.c | 9 + 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/scripts/kconfig/menu.c

Re: [PATCH] x86/retpoline: Fill RSB on context switch for affected CPUs

On Fri, 12 Jan 2018, David Woodhouse wrote: > +/* Check for Skylake-like CPUs (for RSB handling) */ > +static bool __init is_skylake_era(void) > +{ > + if (boot_cpu_data.x86 == 6) { This wants a checkfor vendor = intel > + switch (boot_cpu_data.x86_model) { > + case I

[tip:x86/urgent] x86/tsc: Future-proof native_calibrate_tsc()

Commit-ID: da4ae6c4a0b8dee5a5377a385545d2250fa8cddb Gitweb: https://git.kernel.org/tip/da4ae6c4a0b8dee5a5377a385545d2250fa8cddb Author: Len Brown AuthorDate: Fri, 22 Dec 2017 00:27:54 -0500 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 12:14:50 +0100 x86/tsc: Future-proof nat

[tip:x86/urgent] x86/tsc: Fix erroneous TSC rate on Skylake Xeon

Commit-ID: b511203093489eb1829cb4de86e8214752205ac6 Gitweb: https://git.kernel.org/tip/b511203093489eb1829cb4de86e8214752205ac6 Author: Len Brown AuthorDate: Fri, 22 Dec 2017 00:27:55 -0500 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 12:14:50 +0100 x86/tsc: Fix erroneous TS

[tip:x86/urgent] x86/mm/pkeys: Fix fill_sig_info_pkey

Commit-ID: beacd6f7ed5e2915959442245b3b2480c2e37490 Gitweb: https://git.kernel.org/tip/beacd6f7ed5e2915959442245b3b2480c2e37490 Author: Eric W. Biederman AuthorDate: Fri, 12 Jan 2018 14:31:35 -0600 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 12:14:51 +0100 x86/mm/pkeys: Fix

[tip:x86/urgent] x86/tsc: Print tsc_khz, when it differs from cpu_khz

Commit-ID: 4b5b2127238e689ee18aa6752959751dd61c4c73 Gitweb: https://git.kernel.org/tip/4b5b2127238e689ee18aa6752959751dd61c4c73 Author: Len Brown AuthorDate: Fri, 22 Dec 2017 00:27:56 -0500 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 12:14:50 +0100 x86/tsc: Print tsc_khz, w

Re: [PATCH v7 1/4] i2c-smbus : Add client discovered ARA support

On Sat, 13 Jan 2018 14:37:02 +0100 Marc CAPDEVILLE wrote: > This is from rfc by Alan Cox : https://patchwork.ozlabs.org/patch/381773 > > The idea is as follows (extract from above rfc) : > - If an adapter knows about its ARA and smbus alerts then the adapter > creates its own interrupt handler

Re: [PATCH v7 3/4] iio : Add cm3218 smbus ARA and ACPI support

On Sat, 13 Jan 2018 14:37:04 +0100 Marc CAPDEVILLE wrote: > On asus T100, Capella cm3218 chip is implemented as ambiant light > sensor. This chip expose an smbus ARA protocol device on standard > address 0x0c. The chip is not functional before all alerts are > acknowledged. > > The driver call i

Re: [PATCH] x86: mce: fix type mismatch warning

On Wed, 10 Jan 2018, Arnd Bergmann wrote: > The printed symbol is a 64-bit address, so we get a warning when > building this code for 32-bit kernels: > > arch/x86/kernel/cpu/mcheck/mce.c: In function '__print_mce': > arch/x86/kernel/cpu/mcheck/mce.c:237:21: error: cast to pointer from integer

Re: [PATCH] x86/alternatives: fixup alternative_call_2

On Mon, 25 Dec 2017, Alexey Dobriyan wrote: > The following pattern fails to compile while the same pattern > with alternative_call() does. > > if (...) > alternative_call_2(...); > else > alternative_call_2(...); Sigh. Can we get an explanation WHY it fai

Re: [mm 4.15-rc7] Random oopses under memory pressure.

This memory corruption bug occurs even on CONFIG_SMP=n CONFIG_PREEMPT_NONE=y kernel. This bug highly depends on timing and thus too difficult to bisect. This bug seems to exist at least since Linux 4.8 (judging from the traces, though the cause might be different). None of debugging configuration

Re: [PATCH] iio: accel: use strlcpy() instead of strncpy()

On Fri, 12 Jan 2018 15:45:38 +0800 Xiongfeng Wang wrote: > From: Xiongfeng Wang > > gcc-8 reports > > drivers/iio/accel/st_accel_i2c.c: In function 'st_accel_i2c_probe': > ./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified > bound 20 equals destination size [-Wstringop-trun

[PATCH v2] x86/alternatives: fixup alternative_call_2

The following pattern fails to compile while the same pattern with alternative_call() does: if (...) alternative_call_2(...); else alternative_call_2(...); as it expands into if (...) { }; <=== else {

[tip:x86/mm] x86/kasan: Panic if there is not enough memory to boot

Commit-ID: 74b61d1fb59bed3a6608161b05f2c0f5cb71acf6 Gitweb: https://git.kernel.org/tip/74b61d1fb59bed3a6608161b05f2c0f5cb71acf6 Author: Andrey Ryabinin AuthorDate: Wed, 10 Jan 2018 18:36:02 +0300 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 12:59:51 +0100 x86/kasan: Panic if

Re: [PATCH] x86/centaur: Mark TSC invariant

On Wed, 10 Jan 2018, TimGuo wrote: Please be more careful when sending patches. The subject line of you mail was empty Also this patch was copy pasted or whatever into the mail and got white space damaged by your mail client, so it does not apply. See Documentation/process/email-clients.txt

Re: [PATCH] IIO: ADC: stm32-dfsdm: avoid unused-variable warning

On Thu, 11 Jan 2018 18:38:49 +0100 Arnaud Pouliquen wrote: > On 01/11/2018 03:27 PM, Robin Murphy wrote: > > On 11/01/18 10:34, Arnd Bergmann wrote: > >> Building with CONFIG_OF disabled produces a compiler warning: > >> > >> drivers/iio/adc/stm32-dfsdm-core.c: In function 'stm32_dfsdm_probe':

Re: [PATCH v7 2/3] fs: fat: Add volume label entry method function

ChenGuanqiao writes: > Signed-off-by: ChenGuanqiao > --- > fs/fat/dir.c | 53 + > 1 file changed, 53 insertions(+) > > diff --git a/fs/fat/dir.c b/fs/fat/dir.c > index 8e100c3bf72c..53f36c03760e 100644 > --- a/fs/fat/dir.c > +++ b/fs/fat/dir.c

Re: [PATCH] x86,perf: Disable intel_bts when PTI

* Greg KH wrote: > On Sun, Jan 14, 2018 at 11:27:13AM +0100, Peter Zijlstra wrote: > > > > The intel_bts driver does not use the 'normal' BTS buffer we allocated > > space for in the cpu_entry_area but instead uses the memory allocated > > for the perf AUX buffer. > > > > This obviously comes

Re: [tip:x86/mm] x86/kasan: Panic if there is not enough memory to boot

* tip-bot for Andrey Ryabinin wrote: > Commit-ID: 74b61d1fb59bed3a6608161b05f2c0f5cb71acf6 > Gitweb: > https://git.kernel.org/tip/74b61d1fb59bed3a6608161b05f2c0f5cb71acf6 > Author: Andrey Ryabinin > AuthorDate: Wed, 10 Jan 2018 18:36:02 +0300 > Committer: Thomas Gleixner > CommitDat

Re: [PATCH v7 3/3] fs: fat: add ioctl method in fat filesystem driver

ChenGuanqiao writes: > +static int fat_check_d_characters(char *label, unsigned long len) > +{ > + int i; > + > + for (i = 0; i < len; ++i) { > + switch (label[i]) { > + case '0' ... '9': > + case 'A' ... 'Z': > + case '_': > + c

Re: [PATCH v7 1/3] fs: fat: Add fat filesystem partition volume label in local structure

ChenGuanqiao writes: > Signed-off-by: ChenGuanqiao > --- > fs/fat/fat.h | 6 ++ > fs/fat/inode.c| 15 --- > include/uapi/linux/msdos_fs.h | 2 ++ > 3 files changed, 20 insertions(+), 3 deletions(-) > > diff --git a/fs/fat/fat.h b/fs/fat/fat.h >

Re: [PATCH] x86,perf: Disable intel_bts when PTI

On Sun, Jan 14, 2018 at 01:54:44PM +0100, Ingo Molnar wrote: > > * Greg KH wrote: > > > On Sun, Jan 14, 2018 at 11:27:13AM +0100, Peter Zijlstra wrote: > > > > > > The intel_bts driver does not use the 'normal' BTS buffer we allocated > > > space for in the cpu_entry_area but instead uses the m

[RESEND PATCH 0/2] selftests: ftrace: Fix multiple-kprobe testcase

Hi, These patches are fixing a bug and improve testcase to ensure adding 256 kprobe events for test. I've just updated to the latest kselftest/master branch. Thank you, --- Masami Hiramatsu (2): [BUGFIX] selftest: ftrace: Fix to pick text symbols for kprobes selftest: ftrace: Fix t

[RESEND PATCH 1/2] [BUGFIX] selftest: ftrace: Fix to pick text symbols for kprobes

Fix to pick text symbols for multiple kprobe testcase. kallsyms shows text symbols with " t " or " T " but current testcase picks all symbols including "t", so it picks data symbols if it includes 't' (e.g. "str"). This fixes it to find symbol lines with " t " or " T " (including spaces). Signed-

[RESEND PATCH 2/2] selftest: ftrace: Fix to add 256 kprobe events correctly

Current multiple-kprobe testcase only tries to add kprobe events on first 256 text symbols. However kprobes fails to probe on some text symbols (like blacklisted symbols). Thus in the worst case, the test can not add any kprobe events. To avoid that, continue to try adding kprobe events until 256

Re: [PATCH v2 00/16] add support for AXP813 ADC and battery power supply

On Tue, 9 Jan 2018 10:33:31 +0100 Quentin Schulz wrote: > The AXP813 PMIC is relatively close to the already supported AXP20X and > AXP22X. It provides three different power outputs: battery, AC and USB, and > measures a few different things: temperature, power supply status, current > current a

Re: [PATCH] mtd: onenand: samsung: remove incorrect __iomem annotation

On Sat, 13 Jan 2018 17:56:16 +0100 Christophe JAILLET wrote: > 'page_buf' and 'oob_buf' are allocated with 'devm_kzalloc()' and should not > have __iommem decoration. ^ __iomem No need to send a new version, I'll fix it when applying. > > Remove these decorations and some useless cast

[PATCH] kconfig: Clarify choice dependency propagation

It's easy to miss that choices are special-cased to pass on their mode as the parent dependency. No functional changes. Only comments added. Signed-off-by: Ulf Magnusson --- scripts/kconfig/menu.c | 7 +++ 1 file changed, 7 insertions(+) diff --git a/scripts/kconfig/menu.c b/scripts/kconfi

[PATCH v1 3/6] x86/boot: Add MMIO byte accessors

readb() and writeb() would help to access serial device via MMIO address space. Signed-off-by: Andy Shevchenko --- arch/x86/boot/boot.h | 12 1 file changed, 12 insertions(+) diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h index 7e6ac187275c..09f6829f2778 100644 --- a/arch

[PATCH v1 5/6] x86/boot: Allow longer parameter list for earlyprintk

Allow longer parameter list for earlyprintk to support new coming parameters. No functional change intended. Signed-off-by: Andy Shevchenko --- arch/x86/boot/early_serial_console.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/boot/early_serial_console.c b/arch/x

[PATCH v1 1/6] x86/boot: Convert early_serial_base to unsigned long

As a preparatory of adding flexible serial I/O accessors, convert early_serial_base to unsigned long to cover all possible bus addresses on the system. No functional change intended. Signed-off-by: Andy Shevchenko --- arch/x86/boot/boot.h| 2 +- arch/x86/boot/compres

[PATCH v1 6/6] x86/boot: Support nocfg parameter for earlyprintk

If by BIOS or by other means serial port is configured user might want to skip reconfiguration in the boot code. Add support of 'nocfg' parameter to earlyprintk. Signed-off-by: Andy Shevchenko --- arch/x86/boot/early_serial_console.c | 31 +-- 1 file changed, 21 inse

[PATCH v1 4/6] x86/boot: Assume MMIO if serial base address supplied via earlyprintk

If user supplied serial base address via kernel command line and value is higher than IO space limit (64k boundary), assume for now that MMIO byte access is required. Later we might expand or modify this if needed. Signed-off-by: Andy Shevchenko --- arch/x86/boot/early_serial_console.c | 22 +++

[PATCH v1 2/6] x86/boot: Introduce helpers for serial I/O

As preparatory to enable earlyprintk on non-standard ports on x86, introduce serial_in() and serial_out() helpers to perform serial I/O. No functional change intended. Signed-off-by: Andy Shevchenko --- arch/x86/boot/boot.h| 2 + arch/x86/boot/compressed/early_seria

Re: [tip:x86/mm] x86/kasan: Panic if there is not enough memory to boot

On Sun, 14 Jan 2018, Ingo Molnar wrote: > > * tip-bot for Andrey Ryabinin wrote: > > > Commit-ID: 74b61d1fb59bed3a6608161b05f2c0f5cb71acf6 > > Gitweb: > > https://git.kernel.org/tip/74b61d1fb59bed3a6608161b05f2c0f5cb71acf6 > > Author: Andrey Ryabinin > > AuthorDate: Wed, 10 Jan 2018

Re: [PATCH v7 3/4] iio : Add cm3218 smbus ARA and ACPI support

> On Sat, 13 Jan 2018 14:37:04 +0100 > Marc CAPDEVILLE wrote: > >> On asus T100, Capella cm3218 chip is implemented as ambiant light >> sensor. This chip expose an smbus ARA protocol device on standard >> address 0x0c. The chip is not functional before all alerts are >> acknowledged. >> >> The dr

[tip:x86/pti] x86/kasan: Panic if there is not enough memory to boot

Commit-ID: def0e7b54d63bae120302a4957c272107563ad04 Gitweb: https://git.kernel.org/tip/def0e7b54d63bae120302a4957c272107563ad04 Author: Andrey Ryabinin AuthorDate: Wed, 10 Jan 2018 18:36:02 +0300 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 15:41:32 +0100 x86/kasan: Panic if

[PATCH v2 1/2] kconfig: Document 'if' flattening logic

It is not obvious that this might refer to an 'if', making the code pretty cryptic: if (menu->list && (!menu->prompt || !menu->prompt->text)) { Kconfig keeps the 'if' menu nodes even after flattening. Reflect that in the example to be accurate. No functional changes. Only comments added.

Re: [tip:x86/pti] x86/retpoline: Fill return stack buffer on vmexit

On Fri, Jan 12, 2018 at 03:37:49AM -0800, tip-bot for David Woodhouse wrote: > Commit-ID: 117cc7a908c83697b0b737d15ae1eb5943afe35b > Gitweb: > https://git.kernel.org/tip/117cc7a908c83697b0b737d15ae1eb5943afe35b > Author: David Woodhouse > AuthorDate: Fri, 12 Jan 2018 11:11:27 + > Com

Re: [PATCH v7 2/4] i2c-acpi : exclude ARA address for smbus device

> On Sat, 13 Jan 2018 14:37:03 +0100 > Marc CAPDEVILLE wrote: >> Somme ACPI enumerated devices are known to support smbus alert protocol. >> Theses devices may be miss-enumerated with the reserved smbus ARA address. >> This is the case on Asus T100 tablet where cm3218 ambiant light sensor expose t

Re: [PATCH v8 03/12] x86/retpoline: Add initial retpoline support

On Thu, Jan 11, 2018 at 09:46:25PM +, David Woodhouse wrote: > +/* > + * This should be used immediately before a retpoline alternative. It tells > + * objtool where the retpolines are so that it can make sense of the control > + * flow by just reading the original instruction(s) and ignoring

Re: [PATCH] vfs: remove unused argument in iterate_bdevs

/commits/Rakesh-Pandit/vfs-remove-unused-argument-in-iterate_bdevs/20180114-215207 config: i386-randconfig-x071-201802 (attached as .config) compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new

[PATCH 1/2] extcon: axp288: Constify the axp288_pwr_up_down_info array

Make the axp288_pwr_up_down_info array const char * const, this leads to the following section size changes: .text 0x674 -> 0x664 .data 0x148 -> 0x0f0 .rodata 0x0b4 -> 0x114 Signed-off-by: Hans de Goede --- drivers/extcon/extcon-axp288.c | 4 ++-- 1 file changed, 2 insertions(+), 2 de

[PATCH 2/2] extcon: axp288: Only reschedule charger-detection at boot when a SDP is detected

The only misdetection which can happen at boot due to data-lines mux issues is detecting a non SDP as SDP, so we only need to retry if we detect a SDP on our first detection. Note Vbus misdetection is not a problem, as soon as the drivers controlling the Vbus path set it correctly we will get an i

Re: [PATCHSET v5] blk-mq: reimplement timeout handling

On 01/13/2018 05:19 AM, Bart Van Assche wrote: > Sorry but I only retrieved the blk-mq debugfs several minutes after the hang > started so I'm not sure the state information is relevant. Anyway, I have > attached > it to this e-mail. The most remarkable part is the following: > > ./9ddf

Re: [PATCH] mtd: mtk-nor: modify functions' name more generally

Le 18/12/2017 à 02:47, Guochun Mao a écrit : > Since more and more Mediatek's SoC can use this driver to > control spi-nor flash, functions' name with "mt8173_" is > no longer properly. Replacing "mt8173_" with "mtk_" will > be more accurate to describe these functions' usable scope. > > Signed-of

[GIT pull] x86/pti updates for 4.15

Linus, please pull the latest x86-pti-for-linus git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-pti-for-linus This update contains: - A PTI bugfix to avoid setting reserved CR3 bits when PCID is disabled. This seems to cause issues on a virtual machine at l

Re: [tip:x86/pti] x86/retpoline: Fill return stack buffer on vmexit

On Sun, 14 Jan 2018, Borislav Petkov wrote: > On Fri, Jan 12, 2018 at 03:37:49AM -0800, tip-bot for David Woodhouse wrote: > > Commit-ID: 117cc7a908c83697b0b737d15ae1eb5943afe35b > > Gitweb: > > https://git.kernel.org/tip/117cc7a908c83697b0b737d15ae1eb5943afe35b > > Author: David Woodhou

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Re: [tip:x86/pti] x86/retpoline: Fill return stack buffer on vmexit

On Fri, Jan 12, 2018 at 03:37:49AM -0800, tip-bot for David Woodhouse wrote: > Commit-ID: 117cc7a908c83697b0b737d15ae1eb5943afe35b > Gitweb: > https://git.kernel.org/tip/117cc7a908c83697b0b737d15ae1eb5943afe35b > Author: David Woodhouse > AuthorDate: Fri, 12 Jan 2018 11:11:27 + > Com

Re: [PATCH v2] x86/retpoline: Add LFENCE to the retpoline/RSB filling RSB macros

On Sat, Jan 13, 2018 at 05:27:30PM -0600, Tom Lendacky wrote: > The PAUSE instruction is currently used in the retpoline and RSB filling > macros as a speculation trap. The use of PAUSE was originally suggested > because it showed a very, very small difference in the amount of > cycles/time used t

Re: [PATCHSET v5] blk-mq: reimplement timeout handling

On Sun, Jan 14, 2018 at 11:12 PM, jianchao.wang wrote: > > > On 01/13/2018 05:19 AM, Bart Van Assche wrote: >> Sorry but I only retrieved the blk-mq debugfs several minutes after the hang >> started so I'm not sure the state information is relevant. Anyway, I have >> attached >> it to this e-mail

Re: [PATCH v8 03/12] x86/retpoline: Add initial retpoline support

On Sun, Jan 14, 2018 at 04:02:19PM +0100, Borislav Petkov wrote: > On Thu, Jan 11, 2018 at 09:46:25PM +, David Woodhouse wrote: > > +/* > > + * This should be used immediately before a retpoline alternative. It > > tells > > + * objtool where the retpolines are so that it can make sense of th

Re: [PATCH v8 03/12] x86/retpoline: Add initial retpoline support

On Sun, Jan 14, 2018 at 09:53:45AM -0600, Josh Poimboeuf wrote: > Yeah, that idea came after this patch was already written. I haven't > implemented it yet. Oh ok. I guess that's fine for the current situation. When you do, you can simply kill the macro so all good. Thx. -- Regards/Gruss,

Re: divide error in ___bpf_prog_run

From: Daniel Borkmann Date: Sun, 14 Jan 2018 01:16:17 +0100 > Will get them in as soon as DaveM pulled the current batch into net. This is now done.

Re: [PATCH] vfs: remove unused argument in iterate_bdevs

-ci/linux/commits/Rakesh-Pandit/vfs-remove-unused-argument-in-iterate_bdevs/20180114-215207 config: i386-randconfig-a1-01142254 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new

Re: [PATCH] [net-next] net: netsec: use dma_addr_t for storing dma address

From: Arnd Bergmann Date: Sat, 13 Jan 2018 22:13:44 +0100 > On targets that have different sizes for phys_addr_t and dma_addr_t, > we get a type mismatch error: > > drivers/net/ethernet/socionext/netsec.c: In function 'netsec_alloc_dring': > drivers/net/ethernet/socionext/netsec.c:970:9: error:

[tip:x86/pti] x86/retpoline: Fill RSB on context switch for affected CPUs

Commit-ID: a0ab15c0fb68e202bebd9b17fa49fd7ec48975b3 Gitweb: https://git.kernel.org/tip/a0ab15c0fb68e202bebd9b17fa49fd7ec48975b3 Author: David Woodhouse AuthorDate: Fri, 12 Jan 2018 17:49:25 + Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 16:41:39 +0100 x86/retpoline: Fill

Re: [PATCH v2] x86/retpoline: Add LFENCE to the retpoline/RSB filling RSB macros

On Sun, 2018-01-14 at 16:41 +0100, Borislav Petkov wrote: > On Sat, Jan 13, 2018 at 05:27:30PM -0600, Tom Lendacky wrote: > > > > The PAUSE instruction is currently used in the retpoline and RSB filling > > macros as a speculation trap.  The use of PAUSE was originally suggested > > because it sho

Re: [PATCH] kernel:bpf Remove structure passing and assignment to save stack and no coping structures

On Sun, Jan 14, 2018 at 01:18:35PM +0200, Karim Eshapa wrote: > >> Use pointers to structure as arguments to function instead of coping > >> structures and less stack size. Also transfer TNUM(_v, _m) to > >> tnum.h file to be used in differnet files for creating anonymous structures > >> statically

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[tip:x86/pti] x86/retpoline: Add LFENCE to the retpoline/RSB filling RSB macros

Commit-ID: 607d93a2658a0075047e87e47fde5bcc626a1918 Gitweb: https://git.kernel.org/tip/607d93a2658a0075047e87e47fde5bcc626a1918 Author: Tom Lendacky AuthorDate: Sat, 13 Jan 2018 17:27:30 -0600 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 18:22:15 +0100 x86/retpoline: Add LFE

[PATCH] nl80211: take RCU read lock when calling ieee80211_bss_get_ie()

As ieee80211_bss_get_ie() derefences an RCU, it needs to be called with rcu_read_lock held. Fixes: 44905265bc15 ("nl80211: don't expose wdev->ssid for most interfaces") Signed-off-by: Dominik Brodowski --- This patch fixes the regression I reported in the last couple of weeks for various v4.15-r

[tip:locking/urgent] futex: Prevent overflow by strengthen input validation

Commit-ID: fbe0e839d1e22d88810f3ee3e2f1479be4c0aa4a Gitweb: https://git.kernel.org/tip/fbe0e839d1e22d88810f3ee3e2f1479be4c0aa4a Author: Li Jinyue AuthorDate: Thu, 14 Dec 2017 17:04:54 +0800 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 18:55:03 +0100 futex: Prevent overflow b

[tip:locking/urgent] futex: Avoid violating the 10th rule of futex

Commit-ID: c1e2f0eaf015fb7076d51a339011f2383e6dd389 Gitweb: https://git.kernel.org/tip/c1e2f0eaf015fb7076d51a339011f2383e6dd389 Author: Peter Zijlstra AuthorDate: Fri, 8 Dec 2017 13:49:39 +0100 Committer: Thomas Gleixner CommitDate: Sun, 14 Jan 2018 18:49:16 +0100 futex: Avoid violatin

Re: [PATCH 2/6] x86/xen: Mark pv stub assembler symbol visible

On Thu, 21 Dec 2017, Andi Kleen wrote: > From: Andi Kleen > > With LTO any external assembler symbol has to be marked __visible. > Mark the generated asm PV stubs __visible to prevent a linker error. > > Signed-off-by: Andi Kleen Lacks cc of the Xen folks

Re: [PATCH 3/6] locking/spinlocks: Mark spinlocks noinline when inline spinlocks are disabled

On Thu, 21 Dec 2017, Andi Kleen wrote: > From: Andi Kleen > > Otherwise LTO will inline them anyways and cause a large > kernel text increase. > > Since the explicit intention here is to not inline them marking > them noinline is good documentation even for the non LTO case. > > Signed-off-by:

Re: [PATCH 4/6] x86/kvm: Make steal_time visible

On Thu, 21 Dec 2017, Andi Kleen wrote: > From: Andi Kleen > > This per cpu variable is accessed from assembler code, so needs > to be visible. > > Signed-off-by: Andi Kleen > --- > arch/x86/kernel/kvm.c | 2 +- KVM has maintainers ... > 1 file changed, 1 insertion(+), 1 deletion(-) > > dif

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