linux-toradex.git/drivers/dma-buf/sync_file.c, branch v5.11-rc5

dma-buf: use krealloc_array()

2020-12-15T20:13:37+00:00

Use the helper that checks for overflows internally instead of manually
calculating the size of the new array.

Link: https://lkml.kernel.org/r/20201109110654.12547-10-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski 
Acked-by: Christian König 
Cc: Alexander Shishkin 
Cc: Andy Shevchenko 
Cc: Borislav Petkov 
Cc: Borislav Petkov 
Cc: Christoph Lameter 
Cc: Daniel Vetter 
Cc: Daniel Vetter 
Cc: David Airlie 
Cc: David Rientjes 
Cc: Gustavo Padovan 
Cc: James Morse 
Cc: Jaroslav Kysela 
Cc: Jason Wang 
Cc: Joonsoo Kim 
Cc: Linus Walleij 
Cc: Maarten Lankhorst 
Cc: Mauro Carvalho Chehab 
Cc: Maxime Ripard 
Cc: "Michael S . Tsirkin" 
Cc: Pekka Enberg 
Cc: Robert Richter 
Cc: Sumit Semwal 
Cc: Takashi Iwai 
Cc: Takashi Iwai 
Cc: Thomas Zimmermann 
Cc: Tony Luck 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge tag 'drm-misc-fixes-2019-11-25' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2019-12-09T07:13:19+00:00

 - A fix for a memory leak in the dma-buf support
 - One in mcde DSI support that leads to a pointer dereference

Signed-off-by: Dave Airlie 

From: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20191125094336.GA14723@gilmour.lan

dma-buf: Fix memory leak in sync_file_merge()

2019-11-25T09:21:33+00:00

In the implementation of sync_file_merge() the allocated sync_file is
leaked if number of fences overflows. Release sync_file by goto err.

Fixes: a02b9dc90d84 ("dma-buf/sync_file: refactor fence storage in struct sync_file")
Signed-off-by: Navid Emamdoost 
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20191122220957.30427-1-navid.emamdoost@gmail.com

compat_ioctl: move more drivers to compat_ptr_ioctl

2019-10-23T15:23:44+00:00

The .ioctl and .compat_ioctl file operations have the same prototype so
they can both point to the same function, which works great almost all
the time when all the commands are compatible.

One exception is the s390 architecture, where a compat pointer is only
31 bit wide, and converting it into a 64-bit pointer requires calling
compat_ptr(). Most drivers here will never run in s390, but since we now
have a generic helper for it, it's easy enough to use it consistently.

I double-checked all these drivers to ensure that all ioctl arguments
are used as pointers or are ignored, but are not interpreted as integer
values.

Acked-by: Jason Gunthorpe 
Acked-by: Daniel Vetter 
Acked-by: Mauro Carvalho Chehab 
Acked-by: Greg Kroah-Hartman 
Acked-by: David Sterba 
Acked-by: Darren Hart (VMware) 
Acked-by: Jonathan Cameron 
Acked-by: Bjorn Andersson 
Acked-by: Dan Williams 
Signed-off-by: Arnd Bergmann

dma-fence: Report the composite sync_file status

2019-08-12T09:37:52+00:00

Same as for the individual fences, we want to report the actual status
of the fence when queried.

Reported-by: Petri Latvala 
Signed-off-by: Chris Wilson 
Cc: Sumit Semwal 
Cc: Gustavo Padovan 
Cc: Petri Latvala 
Reviewed-by: Matthew Auld 
Link: https://patchwork.freedesktop.org/patch/msgid/20190812091203.29871-1-chris@chris-wilson.co.uk

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282

2019-06-05T15:36:37+00:00

Based on 1 normalized pattern(s):

  this software is licensed under the terms of the gnu general public
  license version 2 as published by the free software foundation and
  may be copied distributed and modified under those terms this
  program is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 285 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Alexios Zavras 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de
Signed-off-by: Greg Kroah-Hartman

dma-buf: explicitely note that dma-fence-chains use 64bit seqno

2019-04-16T12:49:10+00:00

Instead of checking the upper values of the sequence number use an explicit
field in the dma_fence_ops structure to note if a sequence should be 32bit
or 64bit.

Signed-off-by: Christian König 
Reviewed-by: Lionel Landwerlin 
Link: https://patchwork.freedesktop.org/patch/299655/

dma-buf: make fence sequence numbers 64 bit v2

2018-12-07T11:44:16+00:00

For a lot of use cases we need 64bit sequence numbers. Currently drivers
overload the dma_fence structure to store the additional bits.

Stop doing that and make the sequence number in the dma_fence always
64bit.

For compatibility with hardware which can do only 32bit sequences the
comparisons in __dma_fence_is_later only takes the lower 32bits as significant
when the upper 32bits are all zero.

v2: change the logic in __dma_fence_is_later

Signed-off-by: Christian König 
Reviewed-by: Chunming Zhou 
Link: https://patchwork.freedesktop.org/patch/266927/

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11T22:34:03+00:00

This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:

    for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
        L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
        for f in $L; do sed -i "-es/^\([^\"]*\)\(\\)/\\1E\\2/" $f; done
    done

with de-mangling cleanups yet to come.

NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do.  But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.

The next patch from Al will sort out the final differences, and we
should be all done.

Scripted-by: Al Viro 
Signed-off-by: Linus Torvalds

the rest of drivers/*: annotate ->poll() instances

2017-11-28T16:06:58+00:00

Signed-off-by: Al Viro