Nathan Chancellor
6107a895e3
media: v4l2-device.h: Explicitly compare grp{id,mask} to zero in v4l2_device macros ...
[ Upstream commit afb34781620274236bd9fc9246e22f6963ef5262 ]
When building with Clang + -Wtautological-constant-compare, several of
the ivtv and cx18 drivers warn along the lines of:
drivers/media/pci/cx18/cx18-driver.c:1005:21: warning: converting the
result of '<<' to a boolean always evaluates to true
[-Wtautological-constant-compare]
cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL,
^
drivers/media/pci/cx18/cx18-cards.h:18:37: note: expanded from macro
'CX18_HW_GPIO_RESET_CTRL'
#define CX18_HW_GPIO_RESET_CTRL (1 << 6)
^
1 warning generated.
This warning happens because the shift operation is implicitly converted
to a boolean in v4l2_device_mask_call_all before being negated. This can
be solved by just comparing the mask result to 0 explicitly so that
there is no boolean conversion. The ultimate goal is to enable
-Wtautological-compare globally because there are several subwarnings
that would be helpful to have.
For visual consistency and avoidance of these warnings in the future,
all of the implicitly boolean conversions in the v4l2_device macros
are converted to explicit ones as well.
Link: https://github.com/ClangBuiltLinux/linux/issues/752
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:36:36 +01:00
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2019-07-25 06:30:00 -04:00
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2019-07-22 14:43:59 -04:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
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2020-02-01 09:34:47 +00:00
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2019-08-14 05:04:08 -03:00
media: docs: fix minor typos
2019-06-05 11:31:51 -04:00
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2019-08-19 13:24:04 -03:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
media: Media Device Allocator API
2019-04-22 11:18:26 -04:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
media: media requests: return EBADR instead of EACCES
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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285
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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
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2019-07-25 08:03:03 -04:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
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2019-08-26 10:52:06 -03:00
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2019-07-25 06:26:49 -04:00
media: v4l2-device.h: Explicitly compare grp{id,mask} to zero in v4l2_device macros
2020-02-24 08:36:36 +01:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
media: v4l: ctrls: Add debug messages
2019-07-25 06:26:49 -04:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Linux 5.2-rc4
2019-06-11 12:09:28 -04:00
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2020-02-11 04:35:14 -08:00
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2019-06-24 14:53:44 -04:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237
2019-06-19 17:09:07 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237
2019-06-19 17:09:07 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237
2019-06-19 17:09:07 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237
2019-06-19 17:09:07 +02:00
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2019-06-21 16:20:23 -04:00
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2019-03-18 17:24:14 +02:00
6107a895e3