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author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-22 11:06:32 -0300 |
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committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-26 14:08:50 -0300 |
commit | cce8ccca80d8388982133192d0a6d9dc2e8ed712 (patch) | |
tree | 4e37956f86eba2c619fe2a4d56af0b5c993411ae /Kconfig | |
parent | 093347abc7a4e0490e3c962ecbde2dc272a8f708 (diff) |
media: use the BIT() macro
As warned by cppcheck:
[drivers/media/dvb-frontends/cx24123.c:434]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
[drivers/media/pci/bt8xx/bttv-input.c:87]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
[drivers/media/pci/bt8xx/bttv-input.c:98]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
...
[drivers/media/v4l2-core/v4l2-ioctl.c:1391]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
There are lots of places where we're doing 1 << 31. That's bad,
as, depending on the architecture, this has an undefined behavior.
The BIT() macro is already prepared to handle this, so, let's
just switch all "1 << number" macros by BIT(number) at the header files
with has 1 << 31.
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> # exynos4-is and s3c-camif
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # omap3isp, vsp1, xilinx, wl128x and ipu3
Reviewed-by: Benoit Parrot <bparrot@ti.com> # am437x and ti-vpe
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions