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On 01/05/2018 11:36 AM, Chris Wilson wrote:
Quoting Laura Abbott (2018-01-05 19:14:08)
syzbot reported a warning from Ion:
WARNING: CPU: 1 PID: 3485 at mm/page_alloc.c:3926
...
__alloc_pages_nodemask+0x9fb/0xd80 mm/page_alloc.c:4252
alloc_pages_current+0xb6/0x1e0 mm/mempolicy.c:20
Quoting Laura Abbott (2018-01-05 19:14:08)
> syzbot reported a warning from Ion:
>
> WARNING: CPU: 1 PID: 3485 at mm/page_alloc.c:3926
>
> ...
>__alloc_pages_nodemask+0x9fb/0xd80 mm/page_alloc.c:4252
> alloc_pages_current+0xb6/0x1e0 mm/mempolicy.c:2036
> alloc_pages include/linux/gfp.
syzbot reported a warning from Ion:
WARNING: CPU: 1 PID: 3485 at mm/page_alloc.c:3926
...
__alloc_pages_nodemask+0x9fb/0xd80 mm/page_alloc.c:4252
alloc_pages_current+0xb6/0x1e0 mm/mempolicy.c:2036
alloc_pages include/linux/gfp.h:492 [inline]
ion_system_contig_heap_allocate+0x40/0x2c0
Syzbot reported a warning with Ion:
WARNING: CPU: 0 PID: 3502 at drivers/staging/android/ion/ion-ioctl.c:73
ion_ioctl+0x2db/0x380 drivers/staging/android/ion/ion-ioctl.c:73
Kernel panic - not syncing: panic_on_warn set ...
This is a warning that validation of the ioctl fields failed. This was
de
On 1/5/2018 6:04 AM, Ioana Radulescu wrote:
> All DPIO service API functions receive a dpaa2_io service pointer
> as parameter (NULL meaning any service will do) which indicates
> the hardware resource to be used to execute the specified command.
>
> There isn't however any available API for obtai
Use kcalloc for allocating an array instead of kzalloc with
multiply. kcalloc is the preferred API. Issue reported by
checkpatch.pl
Signed-off-by: Sumit Pundir
---
drivers/staging/lustre/lustre/obdclass/cl_object.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/stagi
Use seq_puts() for strings without format specifiers instead of
seq_printf(). Issue reported by checkpatch.pl
Signed-off-by: Sumit Pundir
---
drivers/staging/lustre/lustre/obdclass/cl_object.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/lustre/lustre
On Fri, Jan 5, 2018 at 1:20 PM, Greg KH wrote:
> Should this be a 4.15-final thing, as well as backported to any range of
> older kernels?
This was found by syzkaller and wouldn't be hit in normal code paths,
so I think it's not critical for 4.15. This code was introduced in
4.14, so it should be
On Fri, Jan 05, 2018 at 11:27:07AM +0100, Martijn Coenen wrote:
> binder_poll() passes the thread->wait waitqueue that
> can be slept on for work. When a thread that uses
> epoll explicitly exits using BINDER_THREAD_EXIT,
> the waitqueue is freed, but it is never removed
> from the corresponding ep
On 05.01.2018 12:43, Arnd Bergmann wrote:
> Without CONFIG_DMA_SHARED_BUFFER we run into a link error for the
> dma_buf_* APIs:
>
> ERROR: "dma_buf_map_attachment"
> [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
> ERROR: "dma_buf_attach" [drivers/staging/media/tegra-vde/tegra-vde.ko]
The first patch introduces a new DPIO API function allowing
the selection of a cpu-affine service. In the second patch,
the Ethernet driver uses this new API to map cpu-affine DPIO
services to channels.
This adds a significant performance boost on the frame dequeue
side (see numbers below), but, m
On Fri, Jan 5, 2018 at 4:14 PM, Shyam Saini wrote:
> Hi,
>
> Did you read this?
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/staging/irda/TODO
>
>
> Thanks,
> Shyam
Hi Shyam,
Thanks for the update. Totally forgot to read it.
Thanks,
Sumit
On Fri, Jan 5, 201
Use the newly added DPIO service API to map cpu-affine DPIO services
to channels.
The DPAA2 Ethernet driver already had mappings of frame queues and
channels to cpus, but had no control over the DPIOs used. We can
now ensure full affinity of hotpath hardware resources to cores,
which improves perf
All DPIO service API functions receive a dpaa2_io service pointer
as parameter (NULL meaning any service will do) which indicates
the hardware resource to be used to execute the specified command.
There isn't however any available API for obtaining such a service
reference that could be used furth
Hi,
Did you read this?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/staging/irda/TODO
Thanks,
Shyam
> This patch fixes the following checkpatch.pl issue at multiple lines:
>
> WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
>
> Signed-off-by: Sumit P
This patch fixes the following checkpatch.pl issue at multiple lines:
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
Signed-off-by: Sumit Pundir
---
drivers/staging/irda/drivers/act200l-sir.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/i
binder_poll() passes the thread->wait waitqueue that
can be slept on for work. When a thread that uses
epoll explicitly exits using BINDER_THREAD_EXIT,
the waitqueue is freed, but it is never removed
from the corresponding epoll data structure. When
the process subsequently exits, the epoll cleanup
Without CONFIG_DMA_SHARED_BUFFER we run into a link error for the
dma_buf_* APIs:
ERROR: "dma_buf_map_attachment" [drivers/staging/media/tegra-vde/tegra-vde.ko]
undefined!
ERROR: "dma_buf_attach" [drivers/staging/media/tegra-vde/tegra-vde.ko]
undefined!
ERROR: "dma_buf_get" [drivers/staging/medi
Oh.. Duh to me... I didn't even know pr_warn_once() existed. Cool.
regards,
dan carpenter
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