[PATCH v2 9/9] media: uvcvideo: Support granular power saving for compat syscalls

[Ricardo Ribalda]

Right now we cannot support granular power saving on compat syscalls
because the VIDIOC_*32 NRs defines are not accessible to drivers.

Use the v4l2_compat_translate_cmd  helper to convert the compat syscall
NRs into syscall NRs.

Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
 drivers/media/usb/uvc/uvc_v4l2.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 13388879091c46ff74582226146521b5b5eb3d10..8358ca54b248dd1cf7c984b206b8e550cd883e54 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -1237,15 +1237,13 @@ static long uvc_v4l2_pm_ioctl(struct file *file,
 static long uvc_v4l2_unlocked_ioctl(struct file *file,
 				    unsigned int cmd, unsigned long arg)
 {
-	/*
-	 * For now, we do not support granular power saving for compat
-	 * syscalls.
-	 */
+	unsigned int converted_cmd = cmd;
+
 	if (in_compat_syscall())
-		return uvc_v4l2_pm_ioctl(file, cmd, arg);
+		converted_cmd = v4l2_compat_translate_cmd(cmd);
 
 	/* The following IOCTLs do need to turn on the camera. */
-	switch (cmd) {
+	switch (converted_cmd) {
 	case UVCIOC_CTRL_QUERY:
 	case VIDIOC_G_CTRL:
 	case VIDIOC_G_EXT_CTRLS:

-- 
2.49.0.1266.g31b7d2e469-goog