[PATCH v2 24/26] media: venus: venc: Make explicit the range of us_per_frame

[Ricardo Ribalda]

Unless the fps is smaller than 0.000232829 fps, this fits in a 32 bit
number. Make that explicit.

Found with cocci:
drivers/media/platform/qcom/venus/venc.c:418:1-7: WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead.

Signed-off-by: Ricardo Ribalda <ribalda at chromium.org>
---
 drivers/media/platform/qcom/venus/venc.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 3ec2fb8d9fab..f87e33a34610 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -393,7 +393,7 @@ static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
 	struct venus_inst *inst = to_inst(file);
 	struct v4l2_outputparm *out = &a->parm.output;
 	struct v4l2_fract *timeperframe = &out->timeperframe;
-	u64 us_per_frame, fps;
+	u64 us_per_frame;
 
 	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
 	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
@@ -414,11 +414,8 @@ static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
 	if (!us_per_frame)
 		return -EINVAL;
 
-	fps = (u64)USEC_PER_SEC;
-	do_div(fps, us_per_frame);
-
+	inst->fps = USEC_PER_SEC / (u32)us_per_frame;
 	inst->timeperframe = *timeperframe;
-	inst->fps = fps;
 
 	return 0;
 }

-- 
2.44.0.769.g3c40516874-goog