1 files changed, 18 insertions, 6 deletions

diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 0bef03add796..e6ba25b3d7c8 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -271,26 +271,38 @@ extern const char *v4l2_field_names[];
 extern const char *v4l2_type_names[];
 
 /*  Compatibility layer interface  --  v4l1-compat module */
-typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
+typedef int (*v4l2_kioctl)(struct file *file,
                            unsigned int cmd, void *arg);
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
-int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
+int v4l_compat_translate_ioctl(struct file *file,
                                int cmd, void *arg, v4l2_kioctl driver_ioctl);
 #else
-#define v4l_compat_translate_ioctl(inode, file, cmd, arg, ioctl) (-EINVAL)
+#define v4l_compat_translate_ioctl(file, cmd, arg, ioctl) (-EINVAL)
 #endif
 
 /* 32 Bits compatibility layer for 64 bits processors */
 extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
                                 unsigned long arg);
 
-extern int video_ioctl2(struct inode *inode, struct file *file,
-                          unsigned int cmd, unsigned long arg);
-
 /* Include support for obsoleted stuff */
 extern int video_usercopy(struct inode *inode, struct file *file,
                           unsigned int cmd, unsigned long arg,
                           int (*func)(struct inode *inode, struct file *file,
                                       unsigned int cmd, void *arg));
 
+/* Standard handlers for V4L ioctl's */
+
+/* This prototype is used on fops.unlocked_ioctl */
+extern int __video_ioctl2(struct file *file,
+                        unsigned int cmd, unsigned long arg);
+
+/* This prototype is used on fops.ioctl
+ * Since fops.ioctl enables Kernel Big Lock, it is preferred
+ * to use __video_ioctl2 instead.
+ * It should be noticed that there's no lock code inside
+ * video_ioctl2().
+ */
+extern int video_ioctl2(struct inode *inode, struct file *file,
+                        unsigned int cmd, unsigned long arg);
+
 #endif /* _V4L2_IOCTL_H */