From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: Ricardo Ribalda <ribalda@chromium.org>,
Martin Tuma <martin.tuma@digiteqautomotive.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Hugues Fruchet <hugues.fruchet@foss.st.com>,
Alain Volmat <alain.volmat@foss.st.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Samuel Holland <samuel@sholland.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Sowjanya Komatineni <skomatineni@nvidia.com>,
Luca Ceresoli <luca.ceresoli@bootlin.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Hans Verkuil <hverkuil@xs4all.nl>, Sergey Kozlov <serjk@netup.ru>,
Abylay Ospan <aospan@netup.ru>,
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
Dmitry Osipenko <digetx@gmail.com>,
Benjamin Mugnier <benjamin.mugnier@foss.st.com>,
Sylvain Petinot <sylvain.petinot@foss.st.com>,
Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
Vikash Garodia <quic_vgarodia@quicinc.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>
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
Subject: Re: [PATCH v2 24/26] media: venus: venc: Make explicit the range of us_per_frame
Date: Sat, 20 Apr 2024 23:47:33 +0100 [thread overview]
Message-ID: <6b1627ff-5135-4685-be35-adf74a456469@linaro.org> (raw)
In-Reply-To: <20240419-fix-cocci-v2-24-2119e692309c@chromium.org>
On 19/04/2024 10:48, Ricardo Ribalda wrote:
> 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@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;
> }
>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
next prev parent reply other threads:[~2024-04-20 22:47 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-19 9:47 [PATCH v2 00/26] media: Fix coccinelle warning/errors Ricardo Ribalda
2024-04-19 9:47 ` [PATCH v2 01/26] media: pci: mgb4: Refactor struct resources Ricardo Ribalda
2024-04-20 23:00 ` Bryan O'Donoghue
2024-04-19 9:47 ` [PATCH v2 02/26] media: stb0899: Simplify check Ricardo Ribalda
2024-04-20 23:07 ` Bryan O'Donoghue
2024-04-19 9:47 ` [PATCH v2 03/26] media: uvcvideo: Refactor iterators Ricardo Ribalda
2024-04-19 10:01 ` Laurent Pinchart
2024-04-19 9:47 ` [PATCH v2 04/26] media: uvcvideo: Use max() macro Ricardo Ribalda
2024-04-19 9:47 ` [PATCH v2 05/26] media: go7007: Use min and max macros Ricardo Ribalda
2024-04-20 23:11 ` Bryan O'Donoghue
2024-04-19 9:47 ` [PATCH v2 06/26] media: stm32-dcmipp: Remove redundant printk Ricardo Ribalda
2024-04-20 23:15 ` Bryan O'Donoghue
2024-04-22 6:52 ` Ricardo Ribalda
2024-04-19 9:47 ` [PATCH v2 07/26] media: staging: sun6i-isp: " Ricardo Ribalda
2024-04-19 9:47 ` [PATCH v2 08/26] media: dvb-frontends: tda18271c2dd: Remove casting during div Ricardo Ribalda
2024-04-19 9:47 ` [PATCH v2 09/26] media: v4l: async: refactor v4l2_async_create_ancillary_links Ricardo Ribalda
2024-04-20 23:23 ` Bryan O'Donoghue
2024-04-24 10:55 ` Hans Verkuil
2024-04-24 18:17 ` Sakari Ailus
2024-04-24 18:46 ` Laurent Pinchart
2024-04-29 10:51 ` Ricardo Ribalda
2024-05-04 8:25 ` Hans Verkuil
2024-04-19 9:47 ` [PATCH v2 10/26] staging: media: tegra-video: Use swap macro Ricardo Ribalda
2024-04-19 9:47 ` [PATCH v2 11/26] media: s2255: Use refcount_t instead of atomic_t for num_channels Ricardo Ribalda
2024-04-19 9:47 ` [PATCH v2 12/26] media: platform: mtk-mdp3: Use refcount_t for job_count Ricardo Ribalda
2024-04-19 9:47 ` [PATCH v2 13/26] media: common: saa7146: Use min macro Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 14/26] media: dvb-frontends: drx39xyj: " Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 15/26] media: netup_unidvb: " Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 16/26] media: au0828: " Ricardo Ribalda
2024-04-24 11:03 ` Hans Verkuil
2024-04-19 9:48 ` [PATCH v2 17/26] media: flexcop-usb: " Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 18/26] media: gspca: cpia1: " Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 19/26] media: stk1160: " Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 20/26] media: tegra-vde: Refactor timeout handling Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 21/26] media: i2c: st-mipid02: Use the correct div function Ricardo Ribalda
2024-04-24 18:22 ` Sakari Ailus
2024-04-19 9:48 ` [PATCH v2 22/26] media: tc358746: Use the correct div_ function Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 23/26] media: venus: vdec: Make explicit the range of us_per_frame Ricardo Ribalda
2024-04-20 22:47 ` Bryan O'Donoghue
2024-04-21 13:20 ` Markus Elfring
2024-04-19 9:48 ` [PATCH v2 24/26] media: venus: venc: " Ricardo Ribalda
2024-04-20 22:47 ` Bryan O'Donoghue [this message]
2024-04-21 13:25 ` Markus Elfring
2024-04-21 13:48 ` Greg Kroah-Hartman
2024-04-19 9:48 ` [PATCH v2 25/26] media: dvb-frontends: tda10048: Fix integer overflow Ricardo Ribalda
2024-04-19 9:48 ` [PATCH v2 26/26] media: dvb-frontends: tda10048: Make explicit the range of z Ricardo Ribalda
2024-04-21 14:07 ` Markus Elfring
2024-04-24 11:11 ` [PATCH v2 00/26] media: Fix coccinelle warning/errors Hans Verkuil
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