On 9/6/19 6:05 AM, SeongJae Park wrote:
kunit fails to run with '--build_dir' option because the option is not
properly sent to kernel running procedure. This commit fixes the
problem.
Can you please include the failure you are seeing in the commit log
thanks,
-- Shuah
On Tue, Sep 3, 2019 at 12:03 PM Krzysztof Kozlowski wrote:
>
> On Tue, 3 Sep 2019 at 10:25, Rob Herring wrote:
> >
> > On Tue, Sep 3, 2019 at 8:58 AM Krzysztof Kozlowski wrote:
> > >
> > > On Mon, 26 Aug 2019 at 13:54, Rob Herring wrote:
> > > >
> > > > On Fri, Aug 23, 2019 at 9:54 AM
* Viresh Kumar [190906 03:05]:
> On 05-09-19, 07:32, Tony Lindgren wrote:
> > Acked-by: Tony Lindgren
>
> Do you want to pick the series instead as this has lots of DT changes
> ?
It unlikely these dts changes will conflict with anything so I
have no problem acking them for you for the next
Without the frame pointer enabled, return_address() is an inline
function and does not need to be exported, as shown by this warning:
WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL
Move the EXPORT_SYMBOL_GPL() into the #ifdef as well.
Signed-off-by: Arnd Bergmann
---
* H. Nikolaus Schaller [190906 07:53]:
> > Am 05.09.2019 um 16:27 schrieb Tony Lindgren :
> > compatible = "ti,omap3-ldp", "ti,omap3430", "ti,omap34xx", "ti,omap3";
>
> After thinking a little about the whole topic the main rule of this change
> must be:
>
> * do not break any existing in-tree
The change to use the generic int_pow instead of the private version
caused a number of build issues on 32-bit architectures and makes
it generally less efficient because of the 64-bit math:
drivers/iio/common/hid-sensors/hid-sensor-attributes.o: In function
`hid_sensor_write_samp_freq_value':
On Fri, Sep 06, 2019, Borislav Petkov wrote:
> On Fri, Sep 06, 2019 at 07:40:39AM -0700, Johannes Erdfelt wrote:
> > I ask because we have successfully used late microcode loading on tens
> > of thousands of hosts.
>
> How do you deal with all the mitigations microcode loaded late?
We developed
From: Long Li Sent: Thursday, September 5, 2019 8:35 PM
> >>
> >> Changes:
> >> v2: rely on default upper layer function to map queues. (suggested by
> >> Ming Lei
> >> )
> >> v3: use num_present_cpus() instead of num_online_cpus(). Hyper-v
> >> doesn't support hot-add CPUs. (suggested by Michael
On some 32-bit architectures, size_t is defined as 'int' rather
than 'long', causing a harmless warning:
drivers/infiniband/core/umem_odp.c:220:7: error: comparison of distinct pointer
types ('typeof (umem_odp->umem.address) *' (aka 'unsigned long *') and 'typeof
(umem_odp->umem.length) *' (aka
On Fri, Sep 6, 2019 at 11:17 AM James Morse wrote:
>
> Hi Pavel,
>
> On 21/08/2019 19:31, Pavel Tatashin wrote:
> > create_safe_exec_page() allocates a safe page and maps it at a
> > specific location, also this function returns the physical address
> > of newly allocated page.
> >
> > The
From: Colin Ian King
Don't populate the array pwr_info_offset on the stack but instead make it
static const. Makes the object code smaller by 207 bytes.
Before:
textdata bss dec hex filename
260663000 64 2913071ca drivers/ssb/pci.o
After:
textdata
On 9/6/19 9:32 AM, Arnd Bergmann wrote:
> The locked_vm member of struct user_struct is guarded by an #ifdef,
> which breaks building the new watch_queue driver when all the other
> subsystems that need it are disabled:
>
> drivers/misc/watch_queue.c:315:38: error: no member named 'locked_vm' in
HYPERVISOR_platform_op() is an inline function and should not
be exported. Since commit 15bfc2348d54 ("modpost: check for
static EXPORT_SYMBOL* functions"), this causes a warning:
WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL
Remove the extraneous export.
Fixes:
On 9/6/19 9:27 AM, Arnd Bergmann wrote:
The vprintk_emit() function is not available when CONFIG_PRINTK
is disabled:
kunit/test.c:22:9: error: implicit declaration of function 'vprintk_emit'
[-Werror,-Wimplicit-function-declaration]
I suppose without printk(), there is not much use in kunit
On 9/6/19 1:51 PM, Miroslav Benes wrote:
Now, I don't think that replacing .ko on disk is a good idea. We've
already discussed it. It would lead to a maintenance/packaging problem,
because you never know which version of the module is loaded in the
system. The state space grows rather rapidly
kbuild warns for exported static symbols. This one seems to
be meant as an external API but does not have any in-kernel
users:
WARNING: "LZ4HC_setExternalDict" [vmlinux] is a static EXPORT_SYMBOL
I suppose the function should not just get removed since it would
be nice to stay close to the
Hi Rafael,
Please pull the following update for Linux 5.4-rc1 or 5.4-rc2 depending
on your pull request schedule for Linus.
This cpupower update for Linux 5.4-rc1 consists of bug fixes and
German translation updates from Benjamin Weis.
diff is attached.
thanks,
-- Shuah
Building in a separate object directory causes a compilation
failure for a missing header:
samples/watch_queue/watch_test.c:23:10: fatal error: linux/watch_queue.h: No
such file or directory
I could not figure out why this does not work and applied this
patch locally. It would be good to fix
The locked_vm member of struct user_struct is guarded by an #ifdef,
which breaks building the new watch_queue driver when all the other
subsystems that need it are disabled:
drivers/misc/watch_queue.c:315:38: error: no member named 'locked_vm' in
'struct user_struct'; did you mean 'locked_shm'?
On Fri, Sep 06, 2019 at 02:58:07PM +0100, Colin King wrote:
> From: Colin Ian King
>
> Don't populate the array 'token' on the stack but instead make it
> static const. Makes the object code smaller by 234 bytes.
>
> Before:
>text data bss dec hex filename
>5371
On Fri 2019-09-06 12:39:00, Sergey Senozhatsky wrote:
> On (09/05/19 13:23), Steven Rostedt wrote:
> > > I think we can queue significantly much less irq_work-s from printk().
> > >
> > > Petr, Steven, what do you think?
>
> [..]
> > I mean, really, do we need to keep calling wake up if it
> >
Minor spelling nit..
> -Original Message-
> From: Arnd Bergmann
>
> The vprintk_emit() function is not available when CONFIG_PRINTK
> is disabled:
>
> kunit/test.c:22:9: error: implicit declaration of function 'vprintk_emit' [-
> Werror,-Wimplicit-function-declaration]
>
> I suppose
The vprintk_emit() function is not available when CONFIG_PRINTK
is disabled:
kunit/test.c:22:9: error: implicit declaration of function 'vprintk_emit'
[-Werror,-Wimplicit-function-declaration]
I suppose without printk(), there is not much use in kunit
either, so add a Kconfig depenedency here.
On Fri, Sep 06, 2019 at 08:21:44AM -0700, Paul E. McKenney wrote:
> On Fri, Sep 06, 2019 at 11:08:06AM -0400, Joel Fernandes wrote:
> > On Thu, Sep 05, 2019 at 08:01:37PM -0400, Joel Fernandes wrote:
> > [snip]
> > > > > > @@ -3004,7 +3007,7 @@ static int rcu_pending(void)
> > > > > >
Test propagation of noexec mount points or file executability through
files open with or without O_MAYEXEC.
Changes since v1:
* move tests from yama to exec
* fix _GNU_SOURCE in kselftest_harness.h
* add a new test sysctl_access_write to check if CAP_MAC_ADMIN is taken
into account
* test
An LSM doesn't get path information related to an access request to open
an inode. This new (internal) MAY_EXECMOUNT flag enables an LSM to
check if the underlying mount point of an inode is marked as executable.
This is useful to implement a security policy taking advantage of the
noexec mount
Changes since v1:
* move from LSM/Yama to sysctl/fs
Signed-off-by: Mickaël Salaün
Reviewed-by: Philippe Trébuchet
Reviewed-by: Thibaut Sautereau
Cc: Jonathan Corbet
Cc: Kees Cook
Cc: Mickaël Salaün
---
Documentation/admin-guide/sysctl/fs.rst | 43 +
1 file changed,
Enable to either propagate the mount options from the underlying VFS
mount to prevent execution, or to propagate the file execute permission.
This may allow a script interpreter to check execution permissions
before reading commands from a file.
The main goal is to be able to protect the kernel
When the O_MAYEXEC flag is passed, sys_open() may be subject to
additional restrictions depending on a security policy implemented by an
LSM through the inode_permission hook.
The underlying idea is to be able to restrict scripts interpretation
according to a policy defined by the system
Hi,
The goal of this patch series is to control script interpretation. A
new O_MAYEXEC flag used by sys_open() is added to enable userspace
script interpreter to delegate to the kernel (and thus the system
security policy) the permission to interpret/execute scripts or other
files containing
The intel_pin_to_gpio() function is only called by the
PM support functions and causes a warning when those are disabled:
drivers/pinctrl/intel/pinctrl-intel.c:841:12: error: unused function
'intel_pin_to_gpio' [-Werror,-Wunused-function]
As we cannot change the PM functions themselves to use
On Fri, Sep 6, 2019 at 8:23 AM Michael S. Tsirkin wrote:
>
> On Fri, Sep 06, 2019 at 07:53:21AM -0700, Alexander Duyck wrote:
> > This series provides an asynchronous means of reporting to a hypervisor
> > that a guest page is no longer in use and can have the data associated
> > with it dropped.
The meson_vrtc_set_wakeup_time() function is only used by
the PM functions and causes a warning when they are disabled:
drivers/rtc/rtc-meson-vrtc.c:32:13: error: unused function
'meson_vrtc_set_wakeup_time' [-Werror,-Wunused-function]
Remove the #ifdef around the callers and add a
On Fri, Sep 06, 2019 at 07:53:21AM -0700, Alexander Duyck wrote:
> This series provides an asynchronous means of reporting to a hypervisor
> that a guest page is no longer in use and can have the data associated
> with it dropped. To do this I have implemented functionality that allows
> for what
On Fri, Sep 06, 2019 at 11:08:06AM -0400, Joel Fernandes wrote:
> On Thu, Sep 05, 2019 at 08:01:37PM -0400, Joel Fernandes wrote:
> [snip]
> > > > > @@ -3004,7 +3007,7 @@ static int rcu_pending(void)
> > > > > return 0;
> > > > >
> > > > > /* Is the RCU core waiting for a
On Mon, Sep 02, 2019 at 12:36:56PM -0500, Eric W. Biederman wrote:
> Russell King - ARM Linux admin writes:
>
> > On Fri, Aug 30, 2019 at 04:02:48PM -0500, Eric W. Biederman wrote:
> >> Russell King - ARM Linux admin writes:
> >>
> >> > On Fri, Aug 30, 2019 at 02:45:36PM -0500, Eric W.
Hi Pavel,
On 21/08/2019 19:31, Pavel Tatashin wrote:
> Now, that we abstracted the required functions move them to a new home.
> Later, we will generalize these function in order to be useful outside
> of hibernation.
> diff --git a/arch/arm64/mm/trans_pgd.c b/arch/arm64/mm/trans_pgd.c
> new
On Fri, Sep 06, 2019 at 07:40:39AM -0700, Johannes Erdfelt wrote:
> You say that switching of CPU feature bits is problematic, but adding
> new features should result only in a warning ("x86/CPU: CPU features
> have changed after loading microcode, but might not take effect.").
That's the only
From: Tudor Ambarus
Adopt the SPDX license identifiers to ease license compliance
management.
Signed-off-by: Tudor Ambarus
---
drivers/memory/atmel-ebi.c | 5 +
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/memory/atmel-ebi.c b/drivers/memory/atmel-ebi.c
index
Hi Linus,
The following changes since commit a55aa89aab90fae7c815b0551b07be37db359d76:
Linux 5.3-rc6 (2019-08-25 12:01:23 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
tags/iommu-fixes-v5.3-rc7
for you to fetch changes up to
This function lost its only call site as part of
earlier dead code removal, so remove it as well:
drivers/video/fbdev/sa1100fb.c:975:21: error: unused function
'sa1100fb_min_dma_period' [-Werror,-Wunused-function]
Fixes: 390e5de11284 ("fbdev/sa1100fb: Remove dead code")
Signed-off-by: Arnd
On architectures such as ARM that have a list of symbols exported from
assembler in a separate C file, we get a lot of new warnings:
WARNING: "__ashrdi3" [vmlinux] is a static (unknown)
WARNING: "__lshrdi3" [vmlinux] is a static (unknown)
WARNING: "__aeabi_llsr" [vmlinux] is a static (unknown)
The nft_offload_ctx structure is much too large to put on the
stack:
net/netfilter/nf_tables_offload.c:31:23: error: stack frame size of 1200 bytes
in function 'nft_flow_rule_create' [-Werror,-Wframe-larger-than=]
Use dynamic allocation here, as we do elsewhere in the same
function.
Fixes:
It's generally not ok to put a 512 byte buffer on the stack, as kernel
stack is a scarce resource:
drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c:660:13: error: stack
frame size of 1032 bytes in function 'mlx5_fw_tracer_handle_traces'
[-Werror,-Wframe-larger-than=]
This is done in a
On kernels without CONFIG_MMU, we get a link error for the siw
driver:
drivers/infiniband/sw/siw/siw_mem.o: In function `siw_umem_get':
siw_mem.c:(.text+0x4c8): undefined reference to `can_do_mlock'
I don't know whether this driver is able to work at all without
an MMU, but it's easy to avoid
On Thu, Sep 05, 2019 at 08:01:37PM -0400, Joel Fernandes wrote:
[snip]
> > > > @@ -3004,7 +3007,7 @@ static int rcu_pending(void)
> > > > return 0;
> > > >
> > > > /* Is the RCU core waiting for a quiescent state from this CPU?
> > > > */
> > > > - if
D'oh, I hit reply while still editing... Sorry for the noise, a better
answer will come later when ready.
--
Jean Delvare
SUSE L3 Support
time_t suffers from overflow problems and should not be used.
In exfat, it is currently used in two open-coded time64_to_tm()
implementations. Changes those to use the existing function instead.
Signed-off-by: Arnd Bergmann
---
drivers/staging/exfat/exfat_super.c | 164
On Fri, 6 Sep 2019 14:15:10 +0200, Greg Kroah-Hartman wrote:
> On Fri, Sep 06, 2019 at 01:02:21PM +0200, Jean Delvare wrote:
> > I've been bitten recently by mcelog not working on machines started in
> > secure boot mode. mcelog tries to read DMI information from /dev/mem
> > and fails to open it.
From: Colin Ian King
Don't populate the array 'registers' on the stack but instead make it
static const. Makes the object code smaller by 10 bytes.
Before:
textdata bss dec hex filename
201385196 128 254626376 staging/media/imx/imx7-mipi-csis.o
After:
text
When CONFIG_VFAT_FS is disabled, the reference to CONFIG_FAT_DEFAULT_IOCHARSET
causes a link failure:
drivers/staging/exfat/exfat_super.c:46:41: error: use of undeclared identifier
'CONFIG_FAT_DEFAULT_IOCHARSET'
static char exfat_default_iocharset[] = CONFIG_FAT_DEFAULT_IOCHARSET;
I could not
On Fri, 2019-09-06 at 07:50 -0700, Srinivas Pandruvada wrote:
> On Fri, 2019-09-06 at 16:46 +0300, Andy Shevchenko wrote:
> > On Fri, Sep 06, 2019 at 05:39:54AM -0400, Prarit Bhargava wrote:
> > > On 9/5/19 7:37 PM, Srinivas Pandruvada wrote:
> > > > Read the bucket and core count relationship via
From: Tudor Ambarus
The total number of EBI CS lines is described by the EBI controller
and not by the Matrix. Move the definition for the number of CS
inside EBI driver.
Signed-off-by: Tudor Ambarus
---
drivers/memory/atmel-ebi.c | 6 --
Sorry for the repost, I relized I stupidly got Greg's email adress wrong
first time around.
> > On Tue, Aug 27, 2019 at 12:00:14PM +0100, Mark Brown wrote:
> > > On Sun, Aug 25, 2019 at 09:35:15PM -0400, Sasha Levin wrote:
> > > > On Wed, Aug 14, 2019 at 10:22:13AM +0100, Mark Brown wrote:
> >
On Fri, Sep 06, 2019 at 09:57:47PM +0800, Jia He wrote:
>* This really shouldn't fail, because the page is there
>* in the page tables. But it might just be unreadable,
>* in which case we just give up and fill the result with
> - *
On Thu 2019-09-05 20:32:08, Sergey Senozhatsky wrote:
> On (09/04/19 16:42), Qian Cai wrote:
> > > Let me think more.
> >
> > To summary, those look to me are all good long-term improvement that would
> > reduce the likelihood of this kind of livelock in general especially for
> > other
> >
From: Alexander Duyck
Add a bit for the page reporting feature provided by virtio-balloon.
This patch should be replaced once the feature is added to the Linux kernel
and the bit is backported into this exported kernel header.
Signed-off-by: Alexander Duyck
---
From: Alexander Duyck
We need to make certain to advertise support for page poison tracking if
we want to actually get data on if the guest will be poisoning pages. So
if free page hinting is active we should add page poisoning support and
let the guest disable it if it isn't using it.
Page
From: Alexander Duyck
Add support for what I am referring to as "unused page reporting".
Basically the idea is to function very similar to how the balloon works
in that we basically end up madvising the page as not being used. However
we don't really need to bother with any deflate type logic
From: Alexander Duyck
Add support for the page reporting feature provided by virtio-balloon.
Reporting differs from the regular balloon functionality in that is is
much less durable than a standard memory balloon. Instead of creating a
list of pages that cannot be accessed the pages are only
From: Alexander Duyck
Currently the page poisoning setting wasn't being enabled unless free page
hinting was enabled. However we will need the page poisoning tracking logic
as well for unused page reporting. As such pull it out and make it a
separate bit of config in the probe function.
In
From: Alexander Duyck
In order to pave the way for free page reporting in virtualized
environments we will need a way to get pages out of the free lists and
identify those pages after they have been returned. To accomplish this,
this patch adds the concept of a Reported Buddy, which is
From: Alexander Duyck
In order to enable the use of the zone from the list manipulator functions
I will need access to the zone pointer. As it turns out most of the
accessors were always just being directly passed >free_area[order]
anyway so it would make sense to just fold that into the
From: Alexander Duyck
Change the logic used to generate randomness in the suffle path so that we
can avoid cache line bouncing. The previous logic was sharing the offset
and entropy word between all CPUs. As such this can result in cache line
bouncing and will ultimately hurt performance when
From: Alexander Duyck
In order to support page reporting it will be necessary to store and
retrieve the migratetype of a page. To enable that I am moving the set and
get operations for pcppage_migratetype into the mm/internal.h header so
that they can be used outside of the page_alloc.c file.
From: Alexander Duyck
Move the head/tail adding logic out of the shuffle code and into the
__free_one_page function since ultimately that is where it is really
needed anyway. By doing this we should be able to reduce the overhead
and can consolidate all of the list addition bits in one spot.
This series provides an asynchronous means of reporting to a hypervisor
that a guest page is no longer in use and can have the data associated
with it dropped. To do this I have implemented functionality that allows
for what I am referring to as unused page reporting
The functionality for this is
On Fri, 2019-09-06 at 16:46 +0300, Andy Shevchenko wrote:
> On Fri, Sep 06, 2019 at 05:39:54AM -0400, Prarit Bhargava wrote:
> > On 9/5/19 7:37 PM, Srinivas Pandruvada wrote:
> > > Read the bucket and core count relationship via MSR and display
> > > when displaying turbo ratio limits.
> > > + ret
Hi Greg,
On Wed, 4 Sep 2019 09:57:29 +0200, Greg Kroah-Hartman wrote:
> On Mon, Sep 02, 2019 at 10:48:38AM +0200, Jean Delvare wrote:
> > Time has come to get rid of the old eeprom driver. The at24 driver
> > should be used instead. So mark the eeprom driver as deprecated and
> > give users some
On Fri, Sep 06, 2019, Thomas Gleixner wrote:
> What your customers are asking for is a receipe for disaster. They can
> check the safety of late loading forever, it will not magically become safe
> because they do so.
>
> If you want late loading, then the whole approach needs to be reworked
On Tue, Sep 03, 2019 at 08:50:39PM -0500, Jason L Tibbitts III wrote:
> I asked the XFS folks who mentioned that the issues with 64 bit inodes
> are old, constrained to larger filesystems than what I'm using, not an
> issue with nfsv4, and not present on anything but 32bit clients with old
>
From: Colin King
Date: Thu, 5 Sep 2019 15:01:35 +0100
> From: Colin Ian King
>
> The variable rx_process_result is being initialized with a value that
> is never read and is being re-assigned immediately afterwards. The
> assignment is redundant, so replace it with the return from function
>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: YueHaibing
---
drivers/perf/arm-cci.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c
index 8f8606b..1b8e337
On Fri, 6 Sep 2019 10:22:47 +0100
Will Deacon wrote:
> > If there's some value to having an entry in the mailmap file, then
> > obviously it should be added. I didn't resist so much as engage in a
> > little muttering under my breath as I applied the patch...
>
> Ok, just wanted to make sure
On Fri, Sep 06, 2019 at 03:53:19PM +0800, Biwen Li wrote:
> From: Chuanhua Han
>
> Enable NXP i2c controller to boot with ACPI
>
> Signed-off-by: Meenakshi Aggarwal
> Signed-off-by: Udit Kumar
> Signed-off-by: Chuanhua Han
> Signed-off-by: Biwen Li
for i2c-imx.c:
Acked-by: Oleksij Rempel
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: YueHaibing
---
drivers/perf/arm-ccn.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c
index 6fc0273..fee5cb2
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: YueHaibing
---
drivers/perf/arm_smmuv3_pmu.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: YueHaibing
---
drivers/perf/xgene_pmu.c | 14 --
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index
This optimization reduces the probability threads will be shuffled between
the main and secondary queues when the secondary queue is empty.
It is helpful when the lock is only lightly contended.
Signed-off-by: Alex Kogan
Reviewed-by: Steve Sistare
---
kernel/locking/qspinlock_cna.h | 20
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: YueHaibing
---
drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 5 +
drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 4 +---
drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 4 +---
Move some of the code manipulating the spin lock into separate functions.
This would allow easier integration of alternative ways to manipulate
that lock.
Signed-off-by: Alex Kogan
Reviewed-by: Steve Sistare
---
kernel/locking/qspinlock.c | 38 --
1 file
The new macro should accept the value to be stored into the lock argument
as another argument. This allows using the same macro in cases where the
value to be stored when passing the lock is different from 1.
Signed-off-by: Alex Kogan
Reviewed-by: Steve Sistare
---
Changes from v3:
- Store encoded pointer in @locked, as suggested by Longman.
As a result, mcs_node size is now intact.
- Add a new kernel boot command-line option "numa_spinlock=on/off/auto",
which may override the selection of the NUMA-aware spinlock during boot,
as requested
In CNA, spinning threads are organized in two queues, a main queue for
threads running on the same node as the current lock holder, and a
secondary queue for threads running on other nodes. At the unlock time,
the lock holder scans the main queue looking for a thread running on
the same node. If
Choose the next lock holder among spinning threads running on the same
node with high probability rather than always. With small probability,
hand the lock to the first thread in the secondary queue or, if that
queue is empty, to the immediate successor of the current lock holder
in the main
From: Andrew Lunn
Date: Sep/06/2019, 15:24:46 (UTC+00:00)
> On Fri, Sep 06, 2019 at 01:31:14PM +, Jose Abreu wrote:
> > From: Voon Weifeng
> > Date: Sep/05/2019, 13:05:30 (UTC+00:00)
> >
> > > DW EQoS v5.xx controllers added capability for interrupt generation
> > > when MDIO interface is
The Ugoos AM6 is based on the Amlogic W400 (G12B) reference design using the
S922X chipset. Hardware specifications:
- 2GB LPDDR4 RAM
- 16GB eMMC storage
- 10/100/1000 Base-T Ethernet using External RGMII PHY
- 802.11 a/b/g/b/ac + BT 5.0 sdio wireless (Ampak 6398S)
- HDMI 2.0 (4k@60p) video
-
The Ugoos AM6 is based on the Amlogic W400 (G12B) reference design using the
S922X chipset.
Acked-by: Rob Herring
Signed-off-by: Christian Hewitt
---
Documentation/devicetree/bindings/arm/amlogic.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git
Ugoos Industrial Co., Ltd. are a manufacturer of ARM based TV Boxes/Dongles,
Digital Signage and Advertisement Solutions [0].
[0] (https://ugoos.com)
Acked-by: Rob Herring
Signed-off-by: Christian Hewitt
---
Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
1 file changed, 2
This patchset adds support for the Ugoos AM6, an Android STB based on
the Amlogic W400 reference design with the S922X chipset.
v2: correction of minor nits
v3: address regulator and GPIO corrections from Neil Armstrong (using
schematic excerpts from Ugoos) and related v2 comments from Martin
On Fri, 6 Sep 2019 at 16:13, Valentin Schneider
wrote:
>
> On 06/09/2019 13:45, Parth Shah wrote:>
> > I guess there is some usecase in case of thermal throttling.
> > If a task is heating up the core then in ideal scenarios POWER systems
> > throttle
> > down to rated frequency.
> > In such
On Tue 2019-09-03 14:02:20, Sergey Senozhatsky wrote:
> On (09/02/19 11:18), James Byrne wrote:
> > Commit 5aa068ea4082 ("printk: remove games with previous record flags")
> > abolished the practice of setting the log flag to 'c' for the first
> > continuation line and '+' for subsequent lines.
--
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From: Colin Ian King
Don't populate the array 'values' on the stack but instead make it
static const. Makes the object code smaller by 111 bytes.
Before:
textdata bss dec hex filename
108612 11169 512 120293 1d5e5 mm/shmem.o
After:
textdata bss dec
On Fri, Sep 06, 2019 at 09:48:21AM +0800, Ming Lei wrote:
> When one IRQ flood happens on one CPU:
>
> 1) softirq handling on this CPU can't make progress
>
> 2) kernel thread bound to this CPU can't make progress
>
> For example, network may require softirq to xmit packets, or another irq
>
On Fri, Sep 06, 2019 at 01:31:14PM +, Jose Abreu wrote:
> From: Voon Weifeng
> Date: Sep/05/2019, 13:05:30 (UTC+00:00)
>
> > DW EQoS v5.xx controllers added capability for interrupt generation
> > when MDIO interface is done (GMII Busy bit is cleared).
> > This patch adds support for this
On Fri, Sep 06, 2019 at 10:17:22AM +0800, Peter Xu wrote:
> The PLE window tracepoint triggers even if the window is not changed,
> and the wording can be a bit confusing too. One example line:
>
> kvm_ple_window: vcpu 0: ple_window 4096 (shrink 4096)
>
> It easily let people think of "the
On Fri, Sep 06, 2019 at 04:01:26PM +0200, Peter Zijlstra wrote:
> On Fri, Sep 06, 2019 at 02:42:11PM +0200, Petr Mladek wrote:
> > 7. People would complain when continuous lines become less
> >reliable. It might be most visible when mixing backtraces
> >from all CPUs. Simple sorting by
On 06/09/2019 14:55, Andrey Konovalov wrote:
> On Fri, Sep 6, 2019 at 3:51 PM Will Deacon wrote:
>>
>> On Wed, Sep 04, 2019 at 06:41:00PM +0200, Andrey Konovalov wrote:
>>> tags_test.c relies on PR_SET_TAGGED_ADDR_CTRL/PR_TAGGED_ADDR_ENABLE being
>>> present in system headers. When this is not
On Fri, Sep 06, 2019 at 10:17:21AM +0800, Peter Xu wrote:
> The VMX ple_window is 32 bits wide, so logically it can overflow with
> an int. The module parameter is declared as unsigned int which is
> good, however the dynamic variable is not. Switching all the
> ple_window references to use
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