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Message-Id: <20250802-media-private-data-v1-60-eb140ddd6a9d@ideasonboard.com>
Date: Sat, 02 Aug 2025 11:23:22 +0200
From: Jacopo Mondi <jacopo.mondi@...asonboard.com>
To: Mauro Carvalho Chehab <mchehab@...nel.org>,
Devarsh Thakkar <devarsht@...com>, Benoit Parrot <bparrot@...com>,
Hans Verkuil <hverkuil@...nel.org>, Mike Isely <isely@...ox.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Hans de Goede <hansg@...nel.org>,
Parthiban Veerasooran <parthiban.veerasooran@...rochip.com>,
Christian Gromm <christian.gromm@...rochip.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alex Shi <alexs@...nel.org>, Yanteng Si <si.yanteng@...ux.dev>,
Dongliang Mu <dzm91@...t.edu.cn>, Jonathan Corbet <corbet@....net>,
Tomasz Figa <tfiga@...omium.org>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Andy Walls <awalls@...metrocast.net>,
Michael Tretter <m.tretter@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Bin Liu <bin.liu@...iatek.com>, Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Dmitry Osipenko <digetx@...il.com>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Mirela Rabulea <mirela.rabulea@....com>, Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>, Fabio Estevam <festevam@...il.com>,
Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
Michal Simek <michal.simek@....com>, Ming Qian <ming.qian@....com>,
Zhou Peng <eagle.zhou@....com>,
Xavier Roumegue <xavier.roumegue@....nxp.com>,
Philipp Zabel <p.zabel@...gutronix.de>,
Vikash Garodia <quic_vgarodia@...cinc.com>,
Dikshita Agarwal <quic_dikshita@...cinc.com>,
Abhinav Kumar <abhinav.kumar@...ux.dev>,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
Sylwester Nawrocki <sylvester.nawrocki@...il.com>,
Jernej Skrabec <jernej.skrabec@...il.com>, Chen-Yu Tsai <wens@...e.org>,
Samuel Holland <samuel@...lland.org>,
Daniel Almeida <daniel.almeida@...labora.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>,
Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
Nas Chung <nas.chung@...psnmedia.com>,
Jackson Lee <jackson.lee@...psnmedia.com>,
Minghsiu Tsai <minghsiu.tsai@...iatek.com>,
Houlong Wei <houlong.wei@...iatek.com>,
Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
Tiffany Lin <tiffany.lin@...iatek.com>,
Yunfei Dong <yunfei.dong@...iatek.com>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Magnus Damm <magnus.damm@...il.com>,
Mikhail Ulyanov <mikhail.ulyanov@...entembedded.com>,
Jacob Chen <jacob-chen@...wrt.com>,
Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
Heiko Stuebner <heiko@...ech.de>,
Detlev Casanova <detlev.casanova@...labora.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Alim Akhtar <alim.akhtar@...sung.com>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
Łukasz Stelmach <l.stelmach@...sung.com>,
Andrzej Pietrasiewicz <andrzejtp2010@...il.com>,
Jacek Anaszewski <jacek.anaszewski@...il.com>,
Andrzej Hajda <andrzej.hajda@...el.com>,
Fabien Dessenne <fabien.dessenne@...s.st.com>,
Hugues Fruchet <hugues.fruchet@...s.st.com>,
Jean-Christophe Trotin <jean-christophe.trotin@...s.st.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Nicolas Dufresne <nicolas.dufresne@...labora.com>,
Benjamin Gaignard <benjamin.gaignard@...labora.com>,
Steve Longerbeam <slongerbeam@...il.com>,
Maxime Ripard <mripard@...nel.org>, Paul Kocialkowski <paulk@...-base.io>,
Niklas Söderlund <niklas.soderlund@...natech.se>,
Robert Foss <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
Corentin Labbe <clabbe@...libre.com>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Bingbu Cao <bingbu.cao@...el.com>, Tianshu Qiu <tian.shu.qiu@...el.com>,
Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-staging@...ts.linux.dev, linux-doc@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
linux-tegra@...r.kernel.org, imx@...ts.linux.dev,
linux-renesas-soc@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-samsung-soc@...r.kernel.org, linux-sunxi@...ts.linux.dev,
linux-usb@...r.kernel.org, linux-amlogic@...ts.infradead.org,
linux-rockchip@...ts.infradead.org,
linux-stm32@...md-mailman.stormreply.com, mjpeg-users@...ts.sourceforge.net,
Jacopo Mondi <jacopo.mondi@...asonboard.com>
Subject: [PATCH 60/65] media: usb: uvc: Access v4l2_fh from file
The v4l2_fh associated with an open file handle is now guaranteed
to be available in file->private_data, initialised by v4l2_fh_add().
Access the v4l2_fh, and from there the driver-specific structure,
from the file * in all ioctl handlers.
Signed-off-by: Jacopo Mondi <jacopo.mondi@...asonboard.com>
---
drivers/media/usb/uvc/uvc_v4l2.c | 36 ++++++++++++++++++------------------
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 09677ed639ae9252a57ce09cdbcfd567ad7aabc2..10196d62f287502b0dd472ac68ec6914ca4eb06b 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -391,7 +391,7 @@ static int uvc_v4l2_try_format(struct uvc_streaming *stream,
static int uvc_ioctl_g_fmt(struct file *file, void *fh,
struct v4l2_format *fmt)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
const struct uvc_format *format;
const struct uvc_frame *frame;
@@ -427,7 +427,7 @@ static int uvc_ioctl_g_fmt(struct file *file, void *fh,
static int uvc_ioctl_s_fmt(struct file *file, void *fh,
struct v4l2_format *fmt)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
struct uvc_streaming_control probe;
const struct uvc_format *format;
@@ -460,7 +460,7 @@ static int uvc_ioctl_g_parm(struct file *file, void *fh,
struct v4l2_streamparm *parm)
{
u32 numerator, denominator;
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
if (parm->type != stream->type)
@@ -496,7 +496,7 @@ static int uvc_ioctl_g_parm(struct file *file, void *fh,
static int uvc_ioctl_s_parm(struct file *file, void *fh,
struct v4l2_streamparm *parm)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
struct uvc_streaming_control probe;
struct v4l2_fract timeperframe;
@@ -641,7 +641,7 @@ static int uvc_ioctl_querycap(struct file *file, void *fh,
static int uvc_ioctl_enum_fmt(struct file *file, void *fh,
struct v4l2_fmtdesc *fmt)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
enum v4l2_buf_type type = fmt->type;
const struct uvc_format *format;
@@ -665,7 +665,7 @@ static int uvc_ioctl_enum_fmt(struct file *file, void *fh,
static int uvc_ioctl_try_fmt(struct file *file, void *fh,
struct v4l2_format *fmt)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
struct uvc_streaming_control probe;
@@ -675,7 +675,7 @@ static int uvc_ioctl_try_fmt(struct file *file, void *fh,
static int uvc_ioctl_enum_input(struct file *file, void *fh,
struct v4l2_input *input)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_video_chain *chain = handle->chain;
const struct uvc_entity *selector = chain->selector;
struct uvc_entity *iterm = NULL;
@@ -717,7 +717,7 @@ static int uvc_ioctl_enum_input(struct file *file, void *fh,
static int uvc_ioctl_g_input(struct file *file, void *fh, unsigned int *input)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_video_chain *chain = handle->chain;
u8 *buf;
int ret;
@@ -745,7 +745,7 @@ static int uvc_ioctl_g_input(struct file *file, void *fh, unsigned int *input)
static int uvc_ioctl_s_input(struct file *file, void *fh, unsigned int input)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
struct uvc_video_chain *chain = handle->chain;
u8 *buf;
@@ -780,7 +780,7 @@ static int uvc_ioctl_s_input(struct file *file, void *fh, unsigned int input)
static int uvc_ioctl_query_ext_ctrl(struct file *file, void *fh,
struct v4l2_query_ext_ctrl *qec)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_video_chain *chain = handle->chain;
return uvc_query_v4l2_ctrl(chain, qec);
@@ -808,7 +808,7 @@ static int uvc_ctrl_check_access(struct uvc_video_chain *chain,
static int uvc_ioctl_g_ext_ctrls(struct file *file, void *fh,
struct v4l2_ext_controls *ctrls)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_video_chain *chain = handle->chain;
struct v4l2_ext_control *ctrl = ctrls->controls;
unsigned int i;
@@ -892,7 +892,7 @@ static int uvc_ioctl_s_try_ext_ctrls(struct uvc_fh *handle,
static int uvc_ioctl_s_ext_ctrls(struct file *file, void *fh,
struct v4l2_ext_controls *ctrls)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
return uvc_ioctl_s_try_ext_ctrls(handle, ctrls, VIDIOC_S_EXT_CTRLS);
}
@@ -900,7 +900,7 @@ static int uvc_ioctl_s_ext_ctrls(struct file *file, void *fh,
static int uvc_ioctl_try_ext_ctrls(struct file *file, void *fh,
struct v4l2_ext_controls *ctrls)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
return uvc_ioctl_s_try_ext_ctrls(handle, ctrls, VIDIOC_TRY_EXT_CTRLS);
}
@@ -908,7 +908,7 @@ static int uvc_ioctl_try_ext_ctrls(struct file *file, void *fh,
static int uvc_ioctl_querymenu(struct file *file, void *fh,
struct v4l2_querymenu *qm)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_video_chain *chain = handle->chain;
return uvc_query_v4l2_menu(chain, qm);
@@ -917,7 +917,7 @@ static int uvc_ioctl_querymenu(struct file *file, void *fh,
static int uvc_ioctl_g_selection(struct file *file, void *fh,
struct v4l2_selection *sel)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
if (sel->type != stream->type)
@@ -951,7 +951,7 @@ static int uvc_ioctl_g_selection(struct file *file, void *fh,
static int uvc_ioctl_enum_framesizes(struct file *file, void *fh,
struct v4l2_frmsizeenum *fsize)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
const struct uvc_format *format = NULL;
const struct uvc_frame *frame = NULL;
@@ -991,7 +991,7 @@ static int uvc_ioctl_enum_framesizes(struct file *file, void *fh,
static int uvc_ioctl_enum_frameintervals(struct file *file, void *fh,
struct v4l2_frmivalenum *fival)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_streaming *stream = handle->stream;
const struct uvc_format *format = NULL;
const struct uvc_frame *frame = NULL;
@@ -1063,7 +1063,7 @@ static int uvc_ioctl_subscribe_event(struct v4l2_fh *fh,
static long uvc_ioctl_default(struct file *file, void *fh, bool valid_prio,
unsigned int cmd, void *arg)
{
- struct uvc_fh *handle = fh;
+ struct uvc_fh *handle = to_uvc_fh(file);
struct uvc_video_chain *chain = handle->chain;
switch (cmd) {
--
2.49.0
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