On Thu, Jan 18, 2018 at 10:43:18AM +0100, Jiri Olsa wrote:
> On Wed, Jan 17, 2018 at 12:48:12AM +0800, Wang YanQing wrote:
> > On Mon, Jan 15, 2018 at 11:06:11AM +0100, Jiri Olsa wrote:
> > > On Mon, Jan 15, 2018 at 12:47:32PM +0800, Wang YanQing wrote:
> > > > So that beautifiers wanting to resolv
On Wed, Jan 17, 2018 at 12:21:49PM -0800, Matthew Wilcox wrote:
> From: Matthew Wilcox
>
> The reada_lock in struct btrfs_device was only initialised, and not
> actually used. That's good because there's another lock also called
> reada_lock in the btrfs_fs_info that was quite heavily used. Rem
> +static int hclge_set_led_status_phy(struct phy_device *phydev, int value)
> +{
> + int ret, cur_page;
> +
> + mutex_lock(&phydev->lock);
> +
> + ret = phy_read(phydev, HCLGE_PHY_PAGE_REG);
> + if (ret < 0)
> + goto out;
> + else
> + cur_page = ret;
> +
Hi Robin,
On 01/18/2018 08:27 PM, Robin Murphy wrote:
Is it worth using the clk_bulk_*() APIs for this? At a glance, most of
the code being added here appears to duplicate what those functions
already do (but I'm no clk API expert, for sure).
right, i think it's doable, the clk_bulk APIs are
On 18/01/18 14:21, Dave Martin wrote:
On Thu, Jan 18, 2018 at 12:08:43PM +, Robin Murphy wrote:
On 18/01/18 12:00, Robin Murphy wrote:
[...]
+struct enable_arg {
+ int (*enable)(struct arm64_cpu_capabilities const *);
+ struct arm64_cpu_capabilities const *cap;
+};
+
+static int __ena
On Thu, Jan 18, 2018 at 11:14:23AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Thu, Jan 18, 2018 at 02:59:48PM +0100, Jiri Olsa escreveu:
> > On Thu, Jan 18, 2018 at 10:41:39AM -0300, Arnaldo Carvalho de Melo wrote:
> > > Shouldn't libopencsd be treated like libbabeltrace was before
> > > the req
On Thu, Jan 18, 2018 at 6:07 PM, Maxime Ripard
wrote:
> Hi!
>
> On Mon, Jan 15, 2018 at 12:07:34PM +0200, Stefan Mavrodiev wrote:
>> > > +/dts-v1/;
>> > > +#include "sun7i-a20.dtsi"
>> > > +#include "sunxi-common-regulators.dtsi"
>> > > +
>> > > +
>> > > +#include
>> > > +#include
>> > > +#inclu
Thu, Jan 18, 2018 at 03:19:14PM CET, a...@arndb.de wrote:
>On Thu, Jan 18, 2018 at 2:49 PM, Jiri Pirko wrote:
>> Thu, Jan 18, 2018 at 02:17:28PM CET, a...@arndb.de wrote:
>>>gcc has identified a code path in which we pass uninitialized
>>>data into tc_dump_tfilter():
>>>
>>>net/sched/cls_api.c: In
On Thu, Jan 18, 2018 at 04:12:10PM +0300, Kirill A. Shutemov wrote:
> On Thu, Jan 18, 2018 at 03:25:50PM +0300, Kirill A. Shutemov wrote:
> > On Thu, Jan 18, 2018 at 05:12:45PM +0900, Tetsuo Handa wrote:
> > > Tetsuo Handa wrote:
> > > > OK. I missed the mark. I overlooked that 4.11 already has thi
From: Patrice Chotard
stm32f746 embeds ARM_PL180 sdio IP, adds SDIO controller
nodes to allow MMC support.
Signed-off-by: Patrice Chotard
---
v3: _ none
v2: _ none
arch/arm/boot/dts/stm32f746.dtsi | 22 ++
1 file changed, 22 insertions(+)
diff --git a/arch/arm/boot/dts/
From: Patrice Chotard
This patch prepares for supporting STM32 variant which doesn't
have opendrain bit in MMCIPOWER register.
ST others variant (u300, nomadik and ux500) uses MCI_OD bit whereas
others variants uses MCI_ROD bit.
Signed-off-by: Patrice Chotard
---
v3: _ use variant->opendrain i
From: Patrice Chotard
STM32F769 has 2 SDMMC port, add clock entry for the second one.
Signed-off-by: Alexandre TORGUE
Signed-off-by: Patrice Chotard
Acked-by: Stephen Boyd
---
v3: _ none
v2: _ Add Acked-by
drivers/clk/clk-stm32f4.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
From: Patrice Chotard
This patch prepares for supporting the STM32 variant that
has no such bit in the status register.
Signed-off-by: Andrea Merello
Signed-off-by: Patrice Chotard
---
v3: _ none
v2: _ replace start_err bool type by u32
drivers/mmc/host/mmci.c | 16 ++--
1 fil
From: Patrice Chotard
Enable MMC_ARMMCI support to add SDIO support for
STM32F4 and STM32F7 SoCs family
Signed-off-by: Patrice Chotard
---
v3: _ none
v2: _ none
arch/arm/configs/stm32_defconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/configs/stm32_defconfig b/arch/ar
From: Patrice Chotard
Enable EXT3_FS support to be able to read rootfs from MMC partition
formatted in EXT2/3/4 .
Signed-off-by: Patrice Chotard
---
v3: _ none
v2: _ none
arch/arm/configs/stm32_defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/configs/stm32_defconfig b
From: Patrice Chotard
This series reworks patches submitted one year ago by Andrea Merello [1]
but without succeed to merged it.
STM32F4 and STM32F7 SoCs families embeds a variant of the ARM PrimeCell
PL18x SD host controller, for which the mmci driver exists.
This series adds support for the
On 01/18/2018 05:12 AM, Kirill A. Shutemov wrote:
> - if (pte_page(*pvmw->pte) - pvmw->page >=
> - hpage_nr_pages(pvmw->page)) {
Is ->pte guaranteed to map a page which is within the same section as
pvmw->page? Otherwise, with sparsemem (non-vmemmap), the p
From: Patrice Chotard
If variant hasn't the control bit to switch pads in opendrain mode,
we can achieve the same result by asking to the pinmux driver to
configure pins for us.
This patch make the mmci driver able to do this whenever needed.
Signed-off-by: Andrea Merello
Signed-off-by: Patric
-Original Message-
From: Arnd Bergmann [mailto:a...@arndb.de]
Sent: Wednesday, January 17, 2018 8:19 PM
To: Kashyap Desai; Sumit Saxena; Shivasharan S; James E.J. Bottomley;
Martin K. Petersen
Cc: Arnd Bergmann; Tomas Henzl; Hannes Reinecke;
megaraidlinux@broadcom.com; linux-s...@vger.k
From: Patrice Chotard
As both STM32F4 and STM32F7 SoCs embeds an AMBA PL180 mmci IP,
we need to enable AMBA support in mach-stm32.
Signed-off-by: Patrice Chotard
---
v3: _ none
v2: _ none
arch/arm/mach-stm32/Kconfig | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-stm32/
From: Patrice Chotard
Two mask registers are used in order to select which events have to
actually generate an interrupt on each IRQ line.
It seems that in the single-IRQ case it's assumed that the IRQs lines
are simply OR-ed, while the two mask registers are still present. The
driver still prog
From: Andrea Merello
This patch adds the pin configuration for SDIO controller on
stm32f4.
Signed-off-by: Andrea Merello
Signed-off-by: Patrice Chotard
---
v3: _ none
v2: _ none
arch/arm/boot/dts/stm32f4-pinctrl.dtsi | 31 +++
1 file changed, 31 insertions(+)
From: Patrice Chotard
This patch adds SDIO related DT nodes for stm32429i-eval board.
Signed-off-by: Patrice Chotard
---
v3: _ none
v2: _ none
arch/arm/boot/dts/stm32429i-eval.dts | 19 +++
1 file changed, 19 insertions(+)
diff --git a/arch/arm/boot/dts/stm32429i-eval.dts
From: Patrice Chotard
stm32f429 embeds ARM_PL180 sdi IP, adds SDIO controller
node to allow MMC support.
Signed-off-by: Andrea Merello
Signed-off-by: Patrice Chotard
---
v3: _ none
v2: _ none
arch/arm/boot/dts/stm32f429.dtsi | 11 +++
1 file changed, 11 insertions(+)
diff --git a
From: Patrice Chotard
STM32F4 and STM32F7 MCUs has a SDIO controller that looks like
an ARM PL810.
This patch adds the STM32 variant so that mmci driver supports it.
Signed-off-by: Andrea Merello
Signed-off-by: Patrice Chotard
Reviewed-by: Linus Walleij
---
v3: _ none
v2: _ Replace "pl180"
From: Andrea Merello
This patch adds SDIO-related DT nodes required by stm32f469 board
There is a hardware issue on these boards, it misses a pullup on
the GPIO line used as card detect to allow correct SD card
detection. To allow correct card detection "broken-cd" property
is used.
Signed-off-
From: Santiago Esteban
The compatible string is incorrect. Add atmel,sama5d3-pinctrl since
it's the appropriate compatible string. Remove the
atmel,at91rm9200-pinctrl compatible string, this fallback is
useless, there are too many changes.
Signed-off-by: Santiago Esteban
Signed-off-by: Ludovic
On Wed, Jan 17, 2018 at 02:28:08PM +0100, Joerg Roedel wrote:
> On Wed, Jan 03, 2018 at 02:09:20PM +0800, Jeffy Chen wrote:
> > The for_each_matching_node_and_match() would return every matching
> > nodes including unavailable ones.
> >
> > It's pointless to init unavailable IOMMUs, so add a sanit
On 01/18/2018 04:25 AM, Kirill A. Shutemov wrote:
> [ 10.084024] diff: -858690919
> [ 10.084258] hpage_nr_pages: 1
> [ 10.084386] check1: 0
> [ 10.084478] check2: 0
...
> diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c
> index d22b84310f6d..57b4397f1ea5 100644
> --- a/mm/page_vma_m
On Thu, Jan 18, 2018 at 06:38:10AM -0800, Dave Hansen wrote:
> On 01/18/2018 05:12 AM, Kirill A. Shutemov wrote:
> > - if (pte_page(*pvmw->pte) - pvmw->page >=
> > - hpage_nr_pages(pvmw->page)) {
>
> Is ->pte guaranteed to map a page which is within the same sec
On 01/18/2018 02:10 PM, Dmitry Vyukov wrote:
> On Wed, Jan 17, 2018 at 12:09 PM, Dmitry Vyukov wrote:
>> On Wed, Jan 17, 2018 at 10:49 AM, Daniel Borkmann
>> wrote:
>>> Don't know if there's such a possibility, but it would be nice if we could
>>> target fuzzing for specific subsystems in relate
On Thu, Jan 18, 2018 at 02:19:58PM +0100, Arnd Bergmann wrote:
> The newly introduced calibrate function has a variable
> that has never been used and needs to be removed to avoid
> this harmless warning:
>
> drivers/phy/broadcom/phy-brcm-sata.c: In function 'brcm_stb_sata_calibrate':
> drivers/ph
From: Gabriel Fernandez
This patch-set adds the dsi clock for stm32f469 board.
Gabriel Fernandez (2):
clk: stm32: END_PRIMARY_CLK should be declare after CLK_SYSCLK
clk: stm32: Add DSI clock for STM32F469 Board
drivers/clk/clk-stm32f4.c | 11 ++-
include/dt-bindings
From: Gabriel Fernandez
This patch adds DSI clock for STM32F469 board
Signed-off-by: Gabriel Fernandez
---
drivers/clk/clk-stm32f4.c | 11 ++-
include/dt-bindings/clock/stm32fx-clock.h | 3 ++-
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/clk
From: Hayes Wang
Date: Thu, 18 Jan 2018 03:04:08 +
> [...]
>> > r8153 on Dell TB15/16 dock corrupts rx packets.
>> >
>> > This change is suggested by Realtek. They guess that the XHCI
>> > controller doesn't have enough buffer, and their guesswork is correct,
>> > once the RX aggregation gets
From: Gabriel Fernandez
Update of END_PRIMARY_CLK was missed, it should be after CLK_SYSCLK
hsi and sysclk are overwritten by gpioa and gpiob.
Signed-off-by: Gabriel Fernandez
---
include/dt-bindings/clock/stm32fx-clock.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git
Den 18.01.2018 13.07, skrev Meghana Madhyastha:
On Tue, Jan 16, 2018 at 06:08:53PM +0100, Noralf Trønnes wrote:
Den 16.01.2018 11.36, skrev Meghana Madhyastha:
Replace of_find_backlight_by_node and of the code around it
with of_find_backlight helper to avoid repetition of code.
Signed-off-by:
On 01/18/2018 06:45 AM, Kirill A. Shutemov wrote:
> On Thu, Jan 18, 2018 at 06:38:10AM -0800, Dave Hansen wrote:
>> On 01/18/2018 05:12 AM, Kirill A. Shutemov wrote:
>>> - if (pte_page(*pvmw->pte) - pvmw->page >=
>>> - hpage_nr_pages(pvmw->page)) {
>> Is ->pte gu
ase
Downloads and links:
The latest version of the test-suite contains 3000+ tests for the Linux
and can be downloaded at:
https://github.com/linux-test-project/ltp/releases/tag/20180118
The project pages as well as GIT repository are hosted on GitHub:
https://github.com/linux-t
On Thu, Jan 18, 2018 at 4:43 AM, Sudeep Holla wrote:
> We need to call of_node_put() for device nodes obtained with
> of_find_node_by_path().
>
> Fixes: 3aa0582fdb82 ("of: platform: populate /firmware/ node from
> of_platform_default_populate_init()")
> Reported-by: Loys Ollivier
> Cc: Rob Herri
From: Thomas Gleixner
[peterz: added native_rdmsrl]
Signed-off-by: Thomas Gleixner
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/microcode.h | 14 --
arch/x86/include/asm/msr.h | 18 ++
2 files changed, 18 insertions(+), 14 deletions(-)
On Thu, Jan 18, 2018 at 06:45:00AM -0800, Dave Hansen wrote:
> On 01/18/2018 04:25 AM, Kirill A. Shutemov wrote:
> > [ 10.084024] diff: -858690919
> > [ 10.084258] hpage_nr_pages: 1
> > [ 10.084386] check1: 0
> > [ 10.084478] check2: 0
> ...
> > diff --git a/mm/page_vma_mapped.c b/mm/page_v
Use an enum for the special_alt entries instead of a collection of
booleans.
Signed-off-by: Peter Zijlstra (Intel)
---
tools/objtool/check.c | 14 +++---
tools/objtool/special.c | 14 +++---
tools/objtool/special.h | 10 --
3 files changed, 26 insertions(+), 12 de
From: Thomas Gleixner
Signed-off-by: Thomas Gleixner
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/cpufeatures.h |4 +++-
arch/x86/include/asm/msr-index.h |3 +++
arch/x86/include/asm/nospec-branch.h |9 +
arch/x86/kernel/cpu/bugs.c |2 +
From: Thomas Gleixner
[peterz: comment]
Signed-off-by: Thomas Gleixner
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/mm/tlb.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -6,13 +6,14 @@
#include
#include
#inclu
On Tue, Jan 9, 2018 at 4:05 PM, Dongsu Park wrote:
> Hi,
>
> On Mon, Dec 25, 2017 at 8:05 AM, Eric W. Biederman
> wrote:
>> Dongsu Park writes:
>>
>>> This patchset v5 is based on work by Seth Forshee and Eric Biederman.
>>> The latest patchset was v4:
>>> https://www.mail-archive.com/linux-kern
Hi Will,
Thanks for your reply.
On 01/18/2018 10:41 PM, Will Deacon wrote:
>
>Makes sense to me, but I'd like to have an OK from Robin or Will (added
>to Cc) before applying this.
I don't think this patch makes a lot of sense in isolation: the SMMU drivers
themselves will likely still probe, a
When using something like:
-#define sched_feat(x) (static_branch_##x(&sched_feat_keys[__SCHED_FEAT_##x]))
+#define sched_feat(x) (static_branch_##x(&sched_feat_keys[__SCHED_FEAT_##x])
&& \
+ (arch_static_assert(), true))
we get an objtool assertion fail like:
kernel/sc
From: Tim Chen
CPUs can expose a MSR to control speculation. The initial function of this
MSR is to control Indirect Branch Speculation, which is required to
mitigate the Spectre_V2 attack on certain CPU generations.
If CPUID(7).RDX[26] is set then MSR_IA32_SPEC_CTRL (0x48) is available and
bit
On 18.01.2018 09:27, Tung Vuong Nguyen wrote:
On Tue, Jan 16, 2018 at 9:50 PM, Mathias Nyman
wrote:
Hi, Sorry about the delay
On 04.01.2018 07:17, Thang Q. Nguyen wrote:
Hi,
On Sat, Dec 16, 2017 at 10:45 AM, Thang Q. Nguyen wrote:
From: Tung Nguyen
Currently, hcd->shared_hcd always c
Since we want to rely on static branches to avoid speculation, remove
any possible fallback code for static_cpu_has.
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/Kconfig | 11 ---
arch/x86/include/asm/cpufeature.h |8
2 files changed, 19 deletions(-)
Implement the static (branch) assertion. It simply emits the address
of the next instruction into a special section which objtool will read
and validate against either __jump_table or .altinstructions.
Use like:
if (static_branch_likely(_key)) {
arch_static_assert();
From: Thomas Gleixner
Add the minimal infrastructure to control the speculation control feature.
- Integrate it into the spectre_v2 coammand line parser and the mitigation
selector function. The conditional selector function is a placeholder
right now, which needs to be expanded with CPU
From: Ashok Raj
Add some helper macros to save/restore MSR_IA32_SPEC_CTRL.
stop_indirect_branch_speculation_and_save() - saves the current
state and enables IBRS.
restore_indirect_branch_speculation() - restores the previously
saved IBRS state.
[peterz: renaming and folding
From: Ashok Raj
Add MSR passthrough for MSR_IA32_PRED_CMD and place branch predictor
barriers on switching between VMs to avoid inter VM specte-v2 attacks.
[peterz: rebase and changelog rewrite]
Cc: Asit Mallick
Cc: Dave Hansen
Cc: Arjan Van De Ven
Cc: Tim Chen
Cc: Linus Torvalds
Cc: Andre
From: Ashok Raj
Add direct access to MSR_IA32_SPEC_CTRL from a guest. Also save/restore
IBRS values during exits and guest resume path.
[peterz: rebased]
Cc: Asit Mallick
Cc: Arjan Van De Ven
Cc: Dave Hansen
Cc: Andi Kleen
Cc: Andrea Arcangeli
Cc: Linus Torvalds
Cc: Tim Chen
Cc: Thomas G
These sites must not end up under dynamic conditions because then it
could be speculated across. Ensure objtools verifies this.
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/nospec-branch.h | 19 +++
1 file changed, 15 insertions(+), 4 deletions(-)
--- a/arch/
The objtool retpoline validation found this indirect jump. Seeing how
its on CPU bringup before we run userspace it should be safe, annotate
it.
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/kernel/head_64.S |2 ++
1 file changed, 2 insertions(+)
--- a/arch/x86/kernel/head_64.S
+++ b/a
Unlike the jump_label bits, static_cpu_has is implemented with
alternatives. We use the new type field to distinguish them from any
other alternatives
Like jump_labels, make static_cpu_has set static_jump_dest on the
instructions after the static branch such that we can assert on it.
Cc: Thomas G
On Thu, Jan 18, 2018 at 02:15:54PM +0100, Arnd Bergmann wrote:
> It was a nice idea to split out the PCI host and endpoint mode configuration
> into separate options. Unfortunately it doesn't build:
>
> drivers/pci/dwc/pci-dra7xx.c:229:11: error: 'pci_irqd_intx_xlate' undeclared
> here (not in a
Lots of patches..
They include:
- objtool validation of jump_label/static_cpu_has
Allows asserting that the code block following a jump_label/static_cpu_has
is indeed unconditional. Ensures GCC doesn't generate particularly stupid
code which would re-insert a dynamic test.
- objtool
Because its daft..
Cc: Josh Poimboeuf
Cc: Thomas Gleixner
Reviewed-by: Borislav Petkov
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/cpufeature.h | 78 +++---
1 file changed, 39 insertions(+), 39 deletions(-)
--- a/arch/x86/include/asm/cpufe
I've observed GCC transform:
f()
{
if (!static_branch_unlikely())
return;
static_assert();
A;
}
g()
{
f();
}
Into:
f()
{
static_assert();
A;
}
g()
{
if (static_branch_unlikely())
Implement a jump_label assertion that asserts that the code location
is indeed only reachable through a static_branch. Because if GCC is
absolutely retaded it could generate code like:
xor rax,rax
NOP/JMP 1f
mov $1, rax
1:
test rax,rax
jz 2f
2:
ins
Use the existing global variables instead of passing them around and
creating duplicate global variables.
Signed-off-by: Peter Zijlstra (Intel)
---
tools/objtool/builtin-check.c |2 +-
tools/objtool/builtin-orc.c |6 +-
tools/objtool/builtin.h |5 +
tools/objtool/chec
On Thu, Jan 18, 2018 at 10:02:25AM +0100, Thomas Gleixner wrote:
> > > 2) We can do a cond_resched() if not in atomic context and interrupts
> > > are
> > > enabled.
> >
> > I did try this before I went with touching softlockup watchdog approach. The
> > problem is in_atomic() can't tell i
For some reason these were missing, I've not observed this patch
making a difference in the few code locations I checked, but this
makes sense.
Cc: Jason Baron
Signed-off-by: Peter Zijlstra (Intel)
---
include/linux/jump_label.h |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
---
I've observed GCC generate:
sym:
NOP/JMP 1f (static_branch)
JMP 2f
1: /* crud */
JMP 3f
2: /* other crud */
3: RETQ
This means we need to follow unconditional jumps; be conservative and
only follow if its a unique jump.
(I've not yet figured out which CONFIG option is re
Paravirt emits indirect calls which get flagged by objtool retpoline
checks, annotate it away because all these indirect calls will be
patched out before we start userspace.
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/paravirt.h | 22 ++
arch/x86/in
David requested a objtool validation pass for RETPOLINE enabled
builds, where it validates no unannotated indirect jumps or calls are
left.
Add an additional .discard.retpoline_safe section to allow annotating
the few indirect sites that are required and safe.
Requested-by: David Woodhouse
Sign
Requested-by: Josh Poimboeuf
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/cpufeature.h |9 +
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -153,7 +153,7 @@ static __always_inline
Annotate the indirect calls/jumps in the CALL_NOSPEC/JUMP_NOSPEC
alternatives.
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/nospec-branch.h | 20
1 file changed, 16 insertions(+), 4 deletions(-)
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/i
The whole of ttwu_stat() is guarded by a single schedstat_enabled(),
there is absolutely no point in then issuing another static_branch for
every single schedstat_inc() in there.
Signed-off-by: Peter Zijlstra (Intel)
---
kernel/sched/core.c | 16
kernel/sched/stats.h |2 +
On Thu, Jan 18, 2018 at 10:06:17PM +0800, Jia-Ju Bai wrote:
> In the rt8169 driver, the function "rtl_tx" uses "smp_mb" to sync the
> writing operation with rtl8169_start_xmit:
> if (tp->dirty_tx != dirty_tx) {
> tp->dirty_tx = dirty_tx;
> smp_mb();
> ...
> }
> The f
Add a type field to the alternative description. For now this will be
used to annotate static_cpu_has() but possible future uses include
using it to implement alternative alignment and special NOP handling.
Suggested-by: Borislav Petkov
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include
Hi Russell,
On Tue, Jan 16, 2018 at 03:12:45PM +, Russell King - ARM Linux wrote:
>
> As I've already said, we need to make sure things are done in a similar
> way for all netdev DT drivers that are hoping to switch to phylink.
> The mvneta patches are now in net-next for this.
>
> What I ca
Fixes the following sparse warning:
mm/memcontrol.c:1097:14: warning:
symbol 'memcg1_stats' was not declared. Should it be static?
Signed-off-by: Christopher Díaz Riveros
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
In order to recognise static_cpu_has() alternatives from any other
alternative without dodgy heuristics, we need to explicitly mark them.
Use the new type field for this.
Signed-off-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/alternative.h |1 +
arch/x86/include/asm/cpufeature.h |
From: Tim Chen
Create macros to control Indirect Branch Speculation.
Name them so they reflect what they are actually doing. The Intel supplied
names are suggesting that they 'enable' something while in reality they
disable.
[ tglx: Changed macro names and rewrote changelog ]
Signed-off-by: Ti
From: Thomas Gleixner
Signed-off-by: Thomas Gleixner
---
arch/x86/include/asm/nospec-branch.h | 12
1 file changed, 12 insertions(+)
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -6,6 +6,7 @@
#include
#include
#include
+#include
From: Tim Chen
Stop Indirect Branch Speculation on every user space to kernel space
transition and reenable it when returning to user space.
The NMI interrupt save/restore of IBRS state was based on Andrea
Arcangeli's implementation. Here's an explanation by Dave Hansen on why we
save IBRS stat
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