| Message ID | 20250111-fix-cocci-v6-6-1aa7842006cc@chromium.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | media: Fix coccinelle warning/errors | expand |
On 11/01/2025 09:55, Ricardo Ribalda wrote: > Fps bigger than 0.000232829 fps, this fits in a 32 bit us_per_frame. > There is no need to do a 64 bit division here. > Also, the driver only works with whole fps. > > Found by cocci: > drivers/media/platform/qcom/venus/vdec.c:488:1-7: WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead. > > Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> > Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> > --- > drivers/media/platform/qcom/venus/vdec.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c > index e160a5508154..aa9ba38186b8 100644 > --- a/drivers/media/platform/qcom/venus/vdec.c > +++ b/drivers/media/platform/qcom/venus/vdec.c > @@ -484,8 +484,7 @@ static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) > do_div(us_per_frame, timeperframe->denominator); > > us_per_frame = max(USEC_PER_SEC, us_per_frame); > - fps = (u64)USEC_PER_SEC; > - do_div(fps, us_per_frame); > + fps = USEC_PER_SEC / (u32)us_per_frame; > fps = min(VENUS_MAX_FPS, fps); > > inst->fps = fps; > Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # qrb5615-rb5 Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c index e160a5508154..aa9ba38186b8 100644 --- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -484,8 +484,7 @@ static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) do_div(us_per_frame, timeperframe->denominator); us_per_frame = max(USEC_PER_SEC, us_per_frame); - fps = (u64)USEC_PER_SEC; - do_div(fps, us_per_frame); + fps = USEC_PER_SEC / (u32)us_per_frame; fps = min(VENUS_MAX_FPS, fps); inst->fps = fps;