> -----Original Message-----
> From: Dan Carpenter [mailto:erro...@gmail.com]
> Sent: Thursday, October 21, 2010 9:24 PM
> To: Mauro Carvalho Chehab
> Cc: Kyungmin Park; Sylwester Nawrocki; Pawel Osciak; Marek Szyprowski;
> linux-media@vger.kernel.org; kernel-janit...@vger.kernel.org
> Subject: [patch 3/3] V4L/DVB: s5p-fimc: dubious one-bit signed
> bitfields
>
> These are signed so instead of being 1 and 0 as intended they are -1
> and
> 0. It doesn't cause a bug in the current code but Sparse warns about
> it:
>
> drivers/media/video/s5p-fimc/fimc-core.h:226:28:
> error: dubious one-bit signed bitfield
>
> Signed-off-by: Dan Carpenter <erro...@gmail.com>
>
> diff --git a/drivers/media/video/s5p-fimc/fimc-core.h
> b/drivers/media/video/s5p-fimc/fimc-core.h
> index e3a7c6a..7665a3f 100644
> --- a/drivers/media/video/s5p-fimc/fimc-core.h
> +++ b/drivers/media/video/s5p-fimc/fimc-core.h
> @@ -222,10 +223,10 @@ struct fimc_effect {
> * @real_height: source pixel (height - offset)
> */
> struct fimc_scaler {
> - int scaleup_h:1;
> - int scaleup_v:1;
> - int copy_mode:1;
> - int enabled:1;
> + unsigned int scaleup_h:1;
> + unsigned int caleup_v:1;
> + unsigned int copy_mode:1;
> + unsigned int enabled:1;
> u32 hfactor;
> u32 vfactor;
> u32 pre_hratio;
In general I agree, however this patch would change scaleup_v:1
to caleup_v, so it cannot be applied in current form.
Here is the corrected patch:
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h
b/drivers/media/video/s5p-fimc/fimc-core.h
index e3a7c6a..3e10785 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.h
+++ b/drivers/media/video/s5p-fimc/fimc-core.h
@@ -222,10 +222,10 @@ struct fimc_effect {
* @real_height: source pixel (height - offset)
*/
struct fimc_scaler {
- int scaleup_h:1;
- int scaleup_v:1;
- int copy_mode:1;
- int enabled:1;
+ unsigned int scaleup_h:1;
+ unsigned int scaleup_v:1;
+ unsigned int copy_mode:1;
+ unsigned int enabled:1;
u32 hfactor;
u32 vfactor;
u32 pre_hratio;
Signed-off-by: Sylwester Nawrocki <s.nawro...@samsung.com>
--
Sylwester Nawrocki
Linux Platform Group
Samsung Poland R&D Center
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