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| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-22 17:06:32 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-26 20:08:50 +0300 |
| commit | cce8ccca80d8388982133192d0a6d9dc2e8ed712 (patch) | |
| tree | 4e37956f86eba2c619fe2a4d56af0b5c993411ae /drivers/media/pci/ivtv | |
| parent | 093347abc7a4e0490e3c962ecbde2dc272a8f708 (diff) | |
| download | linux-cce8ccca80d8388982133192d0a6d9dc2e8ed712.tar.xz | |
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 'drivers/media/pci/ivtv')
| -rw-r--r-- | drivers/media/pci/ivtv/ivtv-irq.h | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-irq.h b/drivers/media/pci/ivtv/ivtv-irq.h index 7d2f45e2b83c..b8b0703a1c82 100644 --- a/drivers/media/pci/ivtv/ivtv-irq.h +++ b/drivers/media/pci/ivtv/ivtv-irq.h @@ -10,20 +10,20 @@ #ifndef IVTV_IRQ_H #define IVTV_IRQ_H -#define IVTV_IRQ_ENC_START_CAP (0x1 << 31) -#define IVTV_IRQ_ENC_EOS (0x1 << 30) -#define IVTV_IRQ_ENC_VBI_CAP (0x1 << 29) -#define IVTV_IRQ_ENC_VIM_RST (0x1 << 28) -#define IVTV_IRQ_ENC_DMA_COMPLETE (0x1 << 27) -#define IVTV_IRQ_ENC_PIO_COMPLETE (0x1 << 25) -#define IVTV_IRQ_DEC_AUD_MODE_CHG (0x1 << 24) -#define IVTV_IRQ_DEC_DATA_REQ (0x1 << 22) -#define IVTV_IRQ_DEC_DMA_COMPLETE (0x1 << 20) -#define IVTV_IRQ_DEC_VBI_RE_INSERT (0x1 << 19) -#define IVTV_IRQ_DMA_ERR (0x1 << 18) -#define IVTV_IRQ_DMA_WRITE (0x1 << 17) -#define IVTV_IRQ_DMA_READ (0x1 << 16) -#define IVTV_IRQ_DEC_VSYNC (0x1 << 10) +#define IVTV_IRQ_ENC_START_CAP BIT(31) +#define IVTV_IRQ_ENC_EOS BIT(30) +#define IVTV_IRQ_ENC_VBI_CAP BIT(29) +#define IVTV_IRQ_ENC_VIM_RST BIT(28) +#define IVTV_IRQ_ENC_DMA_COMPLETE BIT(27) +#define IVTV_IRQ_ENC_PIO_COMPLETE BIT(25) +#define IVTV_IRQ_DEC_AUD_MODE_CHG BIT(24) +#define IVTV_IRQ_DEC_DATA_REQ BIT(22) +#define IVTV_IRQ_DEC_DMA_COMPLETE BIT(20) +#define IVTV_IRQ_DEC_VBI_RE_INSERT BIT(19) +#define IVTV_IRQ_DMA_ERR BIT(18) +#define IVTV_IRQ_DMA_WRITE BIT(17) +#define IVTV_IRQ_DMA_READ BIT(16) +#define IVTV_IRQ_DEC_VSYNC BIT(10) /* IRQ Masks */ #define IVTV_IRQ_MASK_INIT (IVTV_IRQ_DMA_ERR|IVTV_IRQ_ENC_DMA_COMPLETE|\ |