On 11/07/2016 07:45 PM, Will Deacon wrote:
> I figured this was a reasonable post to piggy-back on for the LPC minutes
> relating to guest MSIs on arm64.
Thanks for this Will. I'm still digging out post-LPC and SC16, but the
summary was much appreciated, and I'm glad the conversation is helping.
On November 19, 2016 5:52:57 PM PST, Andy Lutomirski wrote:
>This is a question for the old-timers here, since I can't find
>anything resembling an answer in the SDM.
>
>Suppose an exception happens (#UD in this case, but I assume it
>doesn't really matter). We're not in long mode, and the IDT is
On 19/11/16 19:22, Quentin Lambert wrote:
> Most error branches following the call to kmalloc contain
> a call to kfree. This patch add these calls where they are
> missing.
>
> This issue was found with Hector.
>
> Signed-off-by: Quentin Lambert
Nice catch. I think this will need some more wor
2016-11-18 17:46 GMT+09:00 Arnd Bergmann :
> Maybe add a paragraph about the specific problem:
>
> "On s3c24xx, the PWM counter is only 16 bit wide, and with the
> typical 12MHz input clock that overflows every 5.5ms. This works
> with HZ=200 or higher but not with HZ=100 which needs a 10ms
> inter
Current DMA implementation was not handling the continuous selection
format viz. SPI chip select would be deasserted even between sequential
serial transfers. Use the cs_change variable and correctly set or
reset the CONT bit accordingly for case where peripherals require
the chip select to be asse
Code cleanup for improving code readability and error path fixes
and cleanup removing use of devm_kfree.
Signed-off-by: Sanchayan Maity
---
drivers/spi/spi-fsl-dspi.c | 22 --
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/
Hello,
The following set of patches have fixes for Vybrid SPI DMA
implementation along with some minor clean ups requested
at time when v3 version of SPI DMA support patch was accepted.
This series of patches is based on top of branch topic/fsl-dspi.
http://git.kernel.org/cgit/linux/kernel/git/br
Currently dmaengine_prep_slave_single was being called with length
set to the complete DMA buffer size. This resulted in unwanted bytes
being transferred to the SPI register leading to clock and MOSI lines
having unwanted data even after chip select got deasserted and the
required bytes having been
Current DMA implementation had a bug where the DMA transfer would
exit the loop in dspi_transfer_one_message after the completion of
a single transfer. This results in a multi message transfer submitted
with SPI_IOC_MESSAGE to terminate incorrectly without an error.
Signed-off-by: Sanchayan Maity
Hi Laxman,
[auto build test ERROR on tegra/for-next]
[also build test ERROR on v4.9-rc6 next-20161117]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Laxman-Dewangan/pinctrl-tegra-Add-support-fo
Semaphore sem in iwpm_nlmsg_request is used as completion, so
convert it to a struct completion type. Semaphores are going
away in the future.
Signed-off-by: Binoy Jayan
---
drivers/infiniband/core/iwpm_msg.c | 8
drivers/infiniband/core/iwpm_util.c | 7 +++
drivers/infiniband/core
Hi,
These are a set of patches [v5] which removes semaphores from infiniband.
These are part of a bigger effort to eliminate all semaphores from the
linux kernel.
v4 --> v5
-
IB/isert: Replace semaphore sem with completion
- Modified changelog to support use of completion
IB/mlx5: Simp
Adds cpumask attribute to be used by each IMA pmu. Only one cpu (any
online CPU) from each chip for nest PMUs is designated to read counters.
On CPU hotplug, dying CPU is checked to see whether it is one of the
designated cpus, if yes, next online cpu from the same chip (for nest
units) is designa
Remove semaphore umr_common:sem used to limit concurrent access to umr qp
and introduce an atomic value 'users' to keep track of the same. Use a
wait_event to block when the limit is reached.
Signed-off-by: Binoy Jayan
---
drivers/infiniband/hw/mlx5/main.c| 6 +-
drivers/infiniband/hw/ml
The semaphore 'poll_sem' is a simple mutex, so it should be written as one.
Semaphores are going away in the future. So replace it with a mutex. Also,
remove mutex_[un]lock from mthca_cmd_use_events and mthca_cmd_use_polling
respectively.
Signed-off-by: Binoy Jayan
---
drivers/infiniband/hw/hns/
Power 9 has In-Memory-Accumulation (IMA) infrastructure which contains
various Performance Monitoring Units (PMUs) at Nest level (these are
on-chip but off-core). These Nest PMU counters are handled by a Nest
IMA microcode. This microcode runs in the OCC (On-Chip Controller)
complex and its purpose
Counting semaphores are going away in the future, so replace the semaphore
mthca_cmd::event_sem with a conditional wait_event.
Signed-off-by: Binoy Jayan
---
drivers/infiniband/hw/hns/hns_roce_cmd.c| 46 -
drivers/infiniband/hw/hns/hns_roce_device.h | 2 +-
2 fil
Counting semaphores are going away in the future, so replace the semaphore
mthca_cmd::event_sem with a conditional wait_event.
Signed-off-by: Binoy Jayan
---
drivers/infiniband/hw/mthca/mthca_cmd.c | 47 ++---
drivers/infiniband/hw/mthca/mthca_dev.h | 3 ++-
2 files
Clean up the following common code (to post a list of work requests to the
send queue of the specified QP) at various places and add a helper function
'mlx5_ib_post_send_wait' to implement the same.
- Initialize 'mlx5_ib_umr_context' on stack
- Assign "mlx5_umr_wr:wr:wr_cqe to umr_context.cqe
-
Since, the IMA counters' data are periodically fed to a memory location,
the functions to read/update, start/stop, add/del can be generic and can
be used by all IMA PMU units.
This patch adds a set of generic ima pmu related event functions to be
used by each ima pmu unit. Add code to setup forma
Parse device tree to detect IMA units. Traverse through each IMA unit
node to find supported events and corresponding unit/scale files (if any).
Right now, only nest IMA units are supported.
The nest IMA unit event node from device tree will contain the offset in
the reserved memory region to get
Create new header file "ima-pmu.h" to add the data structures
and macros needed for IMA pmu support.
Cc: Madhavan Srinivasan
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Anton Blanchard
Cc: Sukadev Bhattiprolu
Cc: Michael Neuling
Cc: Stewart Smith
Cc: Stephane Er
This patch does three things :
- Enables "opal.c" to create a platform device for the IMA interface
according to the appropriate compatibility string.
- Find the reserved-memory region details from the system device tree
and get the base address of HOMER region address for each chip.
- We
On Sun, 20 Nov 2016 19:12:57 +
Russell King - ARM Linux wrote:
> On Sun, Nov 20, 2016 at 10:32:50AM -0800, Linus Torvalds wrote:
> > On Sun, Nov 20, 2016 at 5:21 AM, Russell King - ARM Linux
> > wrote:
> > > On Tue, Oct 25, 2016 at 07:32:00PM +1100, Nicholas Piggin wrote:
> > >>
> > >> M
Hi Mark,
On 19 November 2016 at 02:49, Mark Rutland wrote:
> On Wed, Nov 16, 2016 at 09:48:57PM +0800, fu@linaro.org wrote:
>> From: Fu Wei
>>
>> Rename some enums and defines, to unify the format of enums and defines
>> in arm_arch_timer.h, also update all the users of these enums and defin
Device tree IMA driver code parses the IMA units and their events. It
passes the information to IMA pmu code which is placed in powerpc/perf
as "ima-pmu.c".
This patch creates only event attributes and attribute groups for the
IMA pmus.
Cc: Madhavan Srinivasan
Cc: Michael Ellerman
Cc: Benjamin
The semaphore 'poll_sem' is a simple mutex, so it should be written as one.
Semaphores are going away in the future. So replace it with a mutex. Also,
remove mutex_[un]lock from mthca_cmd_use_events and mthca_cmd_use_polling
respectively.
Signed-off-by: Binoy Jayan
---
drivers/infiniband/hw/mthc
The semaphore 'sem' in isert_device is used as completion, but in a
counting fashion as isert_connected_handler could be called multiple times
during which it allows for that number of waiters (isert_accept_np) to
continue without blocking, each consuming one node out from the list
isert_np-pending
The semaphore 'sm_sem' is used for an exclusive ownership of the device
so model the same as an atomic variable with an associated wait_event.
Semaphores are going away in the future.
Signed-off-by: Binoy Jayan
---
drivers/infiniband/core/user_mad.c | 20 ++--
1 file changed, 14
Capability header next field is an offset relative to the start of
the INFO buffer. tmp->next is assigned the proper value but iterations
implemented in vfio_info_cap_add and vfio_info_cap_shift use next
as an offset between the headers. When coping with multiple capabilities
this leads to an Oops.
On 18 November 2016 at 21:14, kbuild test robot wrote:
> Hi Baolin,
>
> [auto build test ERROR on next-20161117]
> [cannot apply to balbi-usb/next usb/usb-testing v4.9-rc5 v4.9-rc4 v4.9-rc3
> v4.9-rc5]
> [if your patch is applied to the wrong git tree, please drop us a note to
> help improve the
On Thu, Nov 18, 2016 at 07:00 PM +, Krzeminski, Marcin (Nokia - PL/Wroclaw)
wrote:
> > -Original Message-
> > From: Yao Yuan [mailto:yao.y...@nxp.com]
> > Sent: Friday, November 18, 2016 5:20 AM
> > To: Krzeminski, Marcin (Nokia - PL/Wroclaw)
> > ; Han Xu
> > Cc: David Woodhouse ; lin
For some mobile devices with strict power management, we also want to suspend
the host when the slave is detached for power saving. Thus we add the host
suspend/resume functions to support this requirement.
Signed-off-by: Baolin Wang
---
Changes since v1:
- Add pm_runtime.h head file to avoid kb
Enable the xhci plat runtime PM for parent device to suspend/resume xhci.
Signed-off-by: Baolin Wang
---
Changes since v1:
- No updates.
---
drivers/usb/host/xhci-plat.c | 37 -
1 file changed, 32 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/host
Hi,
I forgot about the set of issues below. Michael had a suggested powerpc
fix for 3, but it it would be nice to fix the perf bugs in 1 and 2.
Anton
--
> Updating to mainline as of last night, I started seeing the following
> error when running the perf report TUI:
>
> 0x46068 [0x8]: failed to
Please pull this fix for 4.9.
>From JJ: "This is a fix for a policy replacement bug that is fairly
serious for apache mod_apparmor users, as it results in the wrong policy
being applied on an network facing service."
The following changes since commit 9c763584b7c8911106bb77af7e648bef09af9d80:
Nicholas Piggin wrote:
> Architectures will need to have an include/asm/asm-prototypes.h that
> defines or #include<>s C-style prototypes for exported asm functions.
> We can do an asm-generic version for the common ones like memset so
> there's not a lot of pointless duplication there.
Signed-off
On 11/18/2016 11:48 PM, Jérôme Glisse wrote:
> Only usefull for arch where we support ZONE_DEVICE and where we want to
A small nit s/usefull/useful/
> also support un-addressable device memory. We need struct page for such
> un-addressable memory. But we should avoid populating the kernel linear
A quick cleanup that passes scripts/checkpatch.pl -f .
Signed-off-by: Nick Desaulniers
---
arch/x86/kernel/acpi/cstate.c | 20 ++--
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index af15f44..ed52aec
FYI, we noticed the following commit:
https://github.com/0day-ci/linux
Ding-Tianhong/rcu-fix-the-OOM-problem-of-huge-IP-abnormal-packet-traffic/20161118-204521
commit 83ee00c6cf5eaa85f74094d6800732edf7114ef9 ("rcu: fix the OOM problem of
huge IP abnormal packet traffic")
in testcase: boot
on
On 11/21/2016 10:23 AM, Jerome Glisse wrote:
> On Mon, Nov 21, 2016 at 11:44:36AM +1100, Balbir Singh wrote:
>>
>>
>> On 19/11/16 05:18, Jérôme Glisse wrote:
>>> Only usefull for arch where we support ZONE_DEVICE and where we want to
>>> also support un-addressable device memory. We need struct pag
On Fri, 18 Nov 2016 15:47:02 +0100
Frederic Weisbecker wrote:
> On Fri, Nov 18, 2016 at 01:08:46PM +0100, Martin Schwidefsky wrote:
> > On Thu, 17 Nov 2016 19:08:07 +0100
> > Frederic Weisbecker wrote:
> >
> > > I'm sorry for the patchbomb, especially as I usually complain about
> > > these mys
Odroid-xu3/4 didn't need to use the cd-gpios for detecting card.
Because Host controller has the CDETECT register through SDx_CDN line.
Host controller can know whether card is inserted or not with this
register.
When i have checked the Odroid-xu3/4, they are using CDETECT register.
(Not using ext
On Mon, Nov 21, 2016 at 11:43:10AM +0800, Zhang Rui wrote:
> On Thu, 2016-11-17 at 11:42 -0800, Jacob Pan wrote:
> > On Tue, 15 Nov 2016 08:03:32 +0100
> > Greg Kroah-Hartman wrote:
> >
> > >
> > > On Mon, Nov 14, 2016 at 11:08:45AM -0800, Jacob Pan wrote:
> > > >
> > > > Commit 3105f234e0aba43
On Sun, Nov 20, 2016 at 08:09:40AM -0800, Davidlohr Bueso wrote:
> Hi Greg!
>
> On Sun, 20 Nov 2016, Greg KH wrote:
>
> > On Sat, Nov 19, 2016 at 11:54:25AM -0800, Davidlohr Bueso wrote:
> > > With the new standardized functions, we can replace all ACCESS_ONCE()
> > > calls across relevant driver
* Peter Zijlstra wrote:
> On Fri, Nov 18, 2016 at 02:34:07PM -0500, David Miller wrote:
> > From: Babu Moger
> > Date: Tue, 27 Sep 2016 12:33:26 -0700
> >
> > > These patches limit the static allocations for lockdep data structures
> > > used for debugging locking correctness. For sparc, all t
Hi Adam,
Thanks. I'd suggest doing x86: or x86/kbuild: prefix for the patch. Also
possibly consider describing what the patch does at a higher level in your
subject line, e.g.:
x86/kbuild: enable modversions for symbols exported from asm
Also, it wouldn't hurt to add a little changelog of your
* Andy Lutomirski wrote:
> On Sat, Nov 19, 2016 at 6:11 PM, Brian Gerst wrote:
> > On Sat, Nov 19, 2016 at 8:52 PM, Andy Lutomirski wrote:
> >> This is a question for the old-timers here, since I can't find
> >> anything resembling an answer in the SDM.
> >>
> >> Suppose an exception happens (
On Fri, Nov 11, 2016 at 10:17:55AM +0100, Daniel Vetter wrote:
> On Thu, Nov 10, 2016 at 03:56:30PM +0100, Maxime Ripard wrote:
> > Hi Daniel,
> >
> > On Tue, Nov 08, 2016 at 09:59:27AM +0100, Daniel Vetter wrote:
> > > On Tue, Oct 18, 2016 at 10:29:38AM +0200, Maxime Ripard wrote:
> > > > Create
Hi Mark,
On 19 November 2016 at 02:52, Mark Rutland wrote:
> On Wed, Nov 16, 2016 at 09:48:58PM +0800, fu@linaro.org wrote:
>> From: Fu Wei
>>
>> The patch fix a potential bug about arch_timer_uses_ppi in
>> arch_timer_register.
>> On ARM64, we don't use ARCH_TIMER_PHYS_SECURE_PPI in Linux,
Quentin Lambert writes:
> Most error branches following the call to class_find_device contain
> a call to put_device. This patch add calls to put_device where
> they are missing.
>
> This issue was found with Hector.
>
> Signed-off-by: Quentin Lambert
>
> ---
> drivers/hwtracing/stm/core.c |
Hi Sean,
Thanks for taking the time to review this.
On Wed, Nov 16, 2016 at 12:12:53PM -0500, Sean Paul wrote:
> On Tue, Oct 18, 2016 at 4:29 AM, Maxime Ripard
> wrote:
> > Rewrite the command line parser in order to get away from the state machine
> > parsing the video mode lines.
> >
> > Hopef
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c
b/drivers/infiniband/ulp/isert/ib_isert.c
index 6dd43f6..de80f56 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -619,7 +619,7 @@
mutex_unlock(&isert_np->mutex);
isert_inf
+++ Paul Gortmaker [14/11/16 21:00 -0500]:
We have the case where module_param_named() in file "foo.c" for
parameter myparam translates that into the bootarg for the
non-modular use case as "foo.myparam=..."
The problem exists where the use case with the filename and the
dot prefix is establishe
Hi Baolin,
[auto build test ERROR on next-20161117]
[cannot apply to balbi-usb/next usb/usb-testing v4.9-rc6 v4.9-rc5 v4.9-rc4
v4.9-rc6]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Baolin-Wa
Hi Sean,
On Wed, Nov 16, 2016 at 12:21:42PM -0500, Sean Paul wrote:
> On Tue, Oct 18, 2016 at 4:29 AM, Maxime Ripard
> wrote:
> > The drm subsystem also uses the video= kernel parameter, and in the
> > documentation refers to the fbdev documentation for that parameter.
> >
> > However, that docum
* Boqun Feng wrote:
> > It also fails to decrement in the underflow case (which is fine, but not
> > obvious from the comment). Same thing below.
> >
>
> Maybe a table in the comment like the following helps?
>
> /*
> * T: return true, F: return fasle
> * W: trigger WARNING
> * N: no effec
Hi Mathias,
On 17 October 2016 at 22:30, Rafał Miłecki wrote:
> From: Rafał Miłecki
>
> Broadcom's Northstar XHCI controllers seem to need a special start
> procedure to work correctly. There isn't any official documentation of
> this, the problem is that controller doesn't detect any connected
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