diff options
| author | Michael Grzeschik <m.grzeschik@pengutronix.de> | 2023-01-27 02:14:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-31 11:40:42 +0300 |
| commit | 8ecb17a86c0fbb86ea9fb4fa26e742600e945794 (patch) | |
| tree | c4b2923d9a52e4615f2d8d4e64289307cba791a5 | |
| parent | 466be4c9a6f0b7810991b4ac6c3e55345ea63954 (diff) | |
| download | linux-8ecb17a86c0fbb86ea9fb4fa26e742600e945794.tar.xz | |
usb: uvc: make uvc_format_desc table const
Since the uvc_fmts array can not be modified we declare it const and
change every user of the uvc_format_by_guid function aswell.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Tested-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20230126231456.3402323-5-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/media/common/uvc.c | 4 | ||||
| -rw-r--r-- | drivers/media/usb/uvc/uvc_driver.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/uvc_v4l2.c | 8 | ||||
| -rw-r--r-- | include/linux/usb/uvc.h | 2 |
4 files changed, 8 insertions, 8 deletions
diff --git a/drivers/media/common/uvc.c b/drivers/media/common/uvc.c index bb96d9e26d80..2b4df3e8f48a 100644 --- a/drivers/media/common/uvc.c +++ b/drivers/media/common/uvc.c @@ -11,7 +11,7 @@ * Video formats */ -static struct uvc_format_desc uvc_fmts[] = { +static const struct uvc_format_desc uvc_fmts[] = { { .name = "YUV 4:2:2 (YUYV)", .guid = UVC_GUID_FORMAT_YUY2, @@ -204,7 +204,7 @@ static struct uvc_format_desc uvc_fmts[] = { }, }; -struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16]) +const struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16]) { unsigned int len = ARRAY_SIZE(uvc_fmts); unsigned int i; diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index edf8c4a201a8..7aefa76a42b3 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -225,7 +225,7 @@ static int uvc_parse_format(struct uvc_device *dev, { struct usb_interface *intf = streaming->intf; struct usb_host_interface *alts = intf->cur_altsetting; - struct uvc_format_desc *fmtdesc; + const struct uvc_format_desc *fmtdesc; struct uvc_frame *frame; const unsigned char *start = buffer; unsigned int width_multiplier = 1; diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c index 7435df0cf2a8..21e573e628f4 100644 --- a/drivers/usb/gadget/function/uvc_v4l2.c +++ b/drivers/usb/gadget/function/uvc_v4l2.c @@ -27,10 +27,10 @@ #include "uvc_v4l2.h" #include "uvc_configfs.h" -static struct uvc_format_desc *to_uvc_format(struct uvcg_format *uformat) +static const struct uvc_format_desc *to_uvc_format(struct uvcg_format *uformat) { char guid[16] = UVC_GUID_FORMAT_MJPEG; - struct uvc_format_desc *format; + const struct uvc_format_desc *format; struct uvcg_uncompressed *unc; if (uformat->type == UVCG_UNCOMPRESSED) { @@ -119,7 +119,7 @@ static struct uvcg_format *find_format_by_pix(struct uvc_device *uvc, struct uvcg_format *uformat = NULL; list_for_each_entry(format, &uvc->header->formats, entry) { - struct uvc_format_desc *fmtdesc = to_uvc_format(format->fmt); + const struct uvc_format_desc *fmtdesc = to_uvc_format(format->fmt); if (fmtdesc->fcc == pixelformat) { uformat = format->fmt; @@ -364,7 +364,7 @@ uvc_v4l2_enum_format(struct file *file, void *fh, struct v4l2_fmtdesc *f) { struct video_device *vdev = video_devdata(file); struct uvc_device *uvc = video_get_drvdata(vdev); - struct uvc_format_desc *fmtdesc; + const struct uvc_format_desc *fmtdesc; struct uvcg_format *uformat; if (f->index >= uvc->header->num_fmt) diff --git a/include/linux/usb/uvc.h b/include/linux/usb/uvc.h index 8cebb46602a1..b0210c5c5406 100644 --- a/include/linux/usb/uvc.h +++ b/include/linux/usb/uvc.h @@ -154,6 +154,6 @@ struct uvc_format_desc { u32 fcc; }; -struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16]); +const struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16]); #endif /* __LINUX_V4L2_UVC_H */ |