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From: Ricardo Ribalda <ribalda@chromium.org>
Date: Mon, 15 Apr 2024 19:34:42 +0000
Subject: [PATCH 25/35] media: venus: Use the correct div_ function
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To: Martin Tuma <martin.tuma@digiteqautomotive.com>, 
 Mauro Carvalho Chehab <mchehab@kernel.org>, 
 Laurent Pinchart <laurent.pinchart@ideasonboard.com>, 
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 Samuel Holland <samuel@sholland.org>, 
 Sakari Ailus <sakari.ailus@linux.intel.com>, 
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 Bryan O'Donoghue <bryan.odonoghue@linaro.org>, 
 Bjorn Andersson <andersson@kernel.org>, 
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 Benjamin Mugnier <benjamin.mugnier@foss.st.com>, 
 Sylvain Petinot <sylvain.petinot@foss.st.com>, 
 Jacopo Mondi <jacopo+renesas@jmondi.org>, 
 Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>, 
 Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>, 
 =?utf-8?q?Niklas_S=C3=B6derlund?= <niklas.soderlund+renesas@ragnatech.se>, 
 Pavel Machek <pavel@ucw.cz>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, 
 linux-stm32@st-md-mailman.stormreply.com, 
 linux-arm-kernel@lists.infradead.org, linux-staging@lists.linux.dev, 
 linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, 
 linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, 
 Ricardo Ribalda <ribalda@chromium.org>

us_per_frame does not fit in u32

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@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..de06e1712d09 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 = div64_u64(USEC_PER_SEC, us_per_frame);
 	inst->timeperframe = *timeperframe;
-	inst->fps = fps;
 
 	return 0;
 }

-- 
2.44.0.683.g7961c838ac-goog