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| author | Arnd Bergmann <arnd@arndb.de> | 2019-12-16 17:15:06 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-01-03 17:53:46 +0300 |
| commit | 342027c5de4494d14657b64ead536a5671768672 (patch) | |
| tree | 548711357b63c6fb2ff568069133111bd261ee9d /drivers/media/usb/dvb-usb | |
| parent | 9983b2daf1ca4602c32e38a4ef98a6a2b1156b90 (diff) | |
| download | linux-342027c5de4494d14657b64ead536a5671768672.tar.xz | |
media: v4l2-core: fix compat v4l2_buffer handling for time64 ABI
Add support for the four new variants of ioctl commands for 64-bit time_t
in v4l2_buffer.
The existing v4l2_buffer32 structure for the traditional format gets
changed to match the new v4l2_buffer format, and the old layout is
now called v4l2_buffer32_time32. Neither of these matches the native
64-bit architecture format of v4l2_buffer, so both require special
handling in compat code.
Duplicating the existing handlers for the new types is a safe conversion
for now, but unfortunately this may turn into a maintenance burden
later. A larger-scale rework of the compat code might be a better
alternative, but is out of scope of the y2038 work.
Note: x32 support for v4l2_buffer32 has always been broken and remains
so after this change, fixing it would have required even more duplication,
and apparently nobody has cared so far.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: remove spurious newline]
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/usb/dvb-usb')
0 files changed, 0 insertions, 0 deletions