Andrey Konovalov e275faf367 media/v4l2-core: untag user pointers in videobuf_dma_contig_user_get ...

This patch is a part of a series that extends kernel ABI to allow to pass
tagged user pointers (with the top byte set to something else other than
0x00) as syscall arguments.

videobuf_dma_contig_user_get() uses provided user pointers for vma
lookups, which can only by done with untagged pointers.

Untag the pointers in this function.

Link: http://lkml.kernel.org/r/100436d5f8e4349a78f27b0bbb27e4801fcb946b.1563904656.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Jens Wiklander <jens.wiklander@linaro.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2019-09-25 17:51:41 -07:00

..

Kconfig

media: v4l2-core: move i2c helpers out of v4l2-common.c

2019-08-26 10:50:48 -03:00

Makefile

media: v4l2-core: move i2c helpers out of v4l2-common.c

2019-08-26 10:50:48 -03:00

tuner-core.c

treewide: Add SPDX license identifier for more missed files

2019-05-21 10:50:45 +02:00

v4l2-async.c

media: v4l2-async: Safely clean up an uninitialised notifier

2019-07-25 11:00:06 -04:00

v4l2-clk.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19 17:09:55 +02:00

v4l2-common.c

media: v4l2-core: move i2c helpers out of v4l2-common.c

2019-08-26 10:50:48 -03:00

v4l2-compat-ioctl32.c

treewide: Add SPDX license identifier for missed files

2019-05-21 10:50:45 +02:00

v4l2-ctrls.c

media: uapi: h264: Add the concept of start code

2019-08-19 13:23:12 -03:00

v4l2-dev.c

media: v4l2-core: Module re-organization

2019-08-26 10:48:15 -03:00

v4l2-device.c

media: v4l2-core: introduce a helper to unregister a i2c subdev

2019-08-26 10:52:06 -03:00

v4l2-dv-timings.c

media: hdmi.h: rename ADOBE_RGB to OPRGB and ADOBE_YCC to OPYCC

2018-09-24 09:28:41 -04:00

v4l2-event.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30 11:26:41 -07:00

v4l2-fh.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30 11:26:41 -07:00

v4l2-flash-led-class.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19 17:09:55 +02:00

v4l2-fwnode.c

media: v4l2-async: Get fwnode reference when putting it to the notifier's list

2019-07-25 08:01:43 -04:00

v4l2-i2c.c

v4l2-core: fix coding style for the two new c files

2019-08-26 11:01:25 -03:00

v4l2-ioctl.c

media: don't do a 31 bit shift on a signed int

2019-08-26 14:11:10 -03:00

v4l2-mc.c

media: v4l2-mc: add print messages when media graph fails

2018-09-17 13:16:19 -04:00

v4l2-mem2mem.c

media: v4l2-mem2mem: reorder checks in v4l2_m2m_poll()

2019-07-23 08:46:12 -04:00

v4l2-spi.c

v4l2-core: fix coding style for the two new c files

2019-08-26 11:01:25 -03:00

v4l2-subdev.c

media: v4l: ctrls: Add debug messages

2019-07-25 06:26:49 -04:00

v4l2-trace.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

videobuf-core.c

media: videobuf-core.c: poll_wait needs a non-NULL buf pointer

2019-09-05 06:26:57 -03:00

videobuf-dma-contig.c

media/v4l2-core: untag user pointers in videobuf_dma_contig_user_get

2019-09-25 17:51:41 -07:00

videobuf-dma-sg.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237

2019-06-19 17:09:07 +02:00

videobuf-vmalloc.c

Merge tag 'media/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2019-07-09 09:47:22 -07:00