[media] v4l: removal of old, obsolete ioctls

Some ioctl's were defined wrong on 2.6.2 and 2.6.6, using the wrong
type of R/W arguments. They were fixed, but the old ioctl names are
still there, maintained to avoid breaking binary compatibility:

There's no sense on preserving those forever, as it is very doubtful
that someone would try to use a such old binary with a modern kernel.
Removing them will allow us to remove some magic done at the V4L ioctl
handler.

Note that any application compiled with a videodev2.h from 2.6.7 or later
will be using the correct ioctls.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 08e0df1..61fb823 100644 (file)
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -97,27 +97,6 @@ Who: Pavel Machek <pavel@ucw.cz>
 
 ---------------------------
 
-What:  Video4Linux: Remove obsolete ioctl's
-When:  kernel 2.6.39
-Files: include/media/videodev2.h
-Why:   Some ioctl's were defined wrong on 2.6.2 and 2.6.6, using the wrong
-       type of R/W arguments. They were fixed, but the old ioctl names are
-       still there, maintained to avoid breaking binary compatibility:
-         #define VIDIOC_OVERLAY_OLD    _IOWR('V', 14, int)
-         #define VIDIOC_S_PARM_OLD     _IOW('V', 22, struct v4l2_streamparm)
-         #define VIDIOC_S_CTRL_OLD     _IOW('V', 28, struct v4l2_control)
-         #define VIDIOC_G_AUDIO_OLD    _IOWR('V', 33, struct v4l2_audio)
-         #define VIDIOC_G_AUDOUT_OLD   _IOWR('V', 49, struct v4l2_audioout)
-         #define VIDIOC_CROPCAP_OLD    _IOR('V', 58, struct v4l2_cropcap)
-       There's no sense on preserving those forever, as it is very doubtful
-       that someone would try to use a such old binary with a modern kernel.
-       Removing them will allow us to remove some magic done at the V4L ioctl
-       handler.
-
-Who:   Mauro Carvalho Chehab <mchehab@infradead.org>
-
----------------------------
-
 What:  sys_sysctl
 When:  September 2010
 Option: CONFIG_SYSCTL_SYSCALL

diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 810eef4..940b5db 100644 (file)
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -59,7 +59,6 @@
 #include <asm/pgtable.h>
 #include <asm/io.h>
 #include <asm/div64.h>
-#define __OLD_VIDIOC_ /* To allow fixing old calls*/
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>

diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
index c19208a..7c26947 100644 (file)
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -14,7 +14,6 @@
  */
 
 #include <linux/compat.h>
-#define __OLD_VIDIOC_ /* To allow fixing old calls*/
 #include <linux/videodev2.h>
 #include <linux/module.h>
 #include <media/v4l2-ioctl.h>
@@ -678,9 +677,6 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
 #define VIDIOC_TRY_EXT_CTRLS32  _IOWR('V', 73, struct v4l2_ext_controls32)
 
 #define VIDIOC_OVERLAY32       _IOW ('V', 14, s32)
-#ifdef __OLD_VIDIOC_
-#define VIDIOC_OVERLAY32_OLD   _IOWR('V', 14, s32)
-#endif
 #define VIDIOC_STREAMON32      _IOW ('V', 18, s32)
 #define VIDIOC_STREAMOFF32     _IOW ('V', 19, s32)
 #define VIDIOC_G_INPUT32       _IOR ('V', 38, s32)
@@ -720,9 +716,6 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
        case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
        case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
        case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
-#ifdef __OLD_VIDIOC_
-       case VIDIOC_OVERLAY32_OLD: cmd = VIDIOC_OVERLAY; break;
-#endif
        case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
        case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
        case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
@@ -856,14 +849,6 @@ long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
                return ret;
 
        switch (cmd) {
-#ifdef __OLD_VIDIOC_
-       case VIDIOC_OVERLAY32_OLD:
-       case VIDIOC_S_PARM_OLD:
-       case VIDIOC_S_CTRL_OLD:
-       case VIDIOC_G_AUDIO_OLD:
-       case VIDIOC_G_AUDOUT_OLD:
-       case VIDIOC_CROPCAP_OLD:
-#endif
        case VIDIOC_QUERYCAP:
        case VIDIOC_RESERVED:
        case VIDIOC_ENUM_FMT:

diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 8360ed2..7a72074 100644 (file)
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -17,7 +17,6 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 
-#define __OLD_VIDIOC_ /* To allow fixing old calls */
 #include <linux/videodev2.h>
 
 #include <media/v4l2-common.h>
@@ -297,37 +296,6 @@ EXPORT_SYMBOL(v4l_printk_ioctl);
 
 /*
  * helper function -- handles userspace copying for ioctl arguments
- */
-
-#ifdef __OLD_VIDIOC_
-static unsigned int
-video_fix_command(unsigned int cmd)
-{
-       switch (cmd) {
-       case VIDIOC_OVERLAY_OLD:
-               cmd = VIDIOC_OVERLAY;
-               break;
-       case VIDIOC_S_PARM_OLD:
-               cmd = VIDIOC_S_PARM;
-               break;
-       case VIDIOC_S_CTRL_OLD:
-               cmd = VIDIOC_S_CTRL;
-               break;
-       case VIDIOC_G_AUDIO_OLD:
-               cmd = VIDIOC_G_AUDIO;
-               break;
-       case VIDIOC_G_AUDOUT_OLD:
-               cmd = VIDIOC_G_AUDOUT;
-               break;
-       case VIDIOC_CROPCAP_OLD:
-               cmd = VIDIOC_CROPCAP;
-               break;
-       }
-       return cmd;
-}
-#endif
-
-/*
  * Obsolete usercopy function - Should be removed soon
  */
 long
@@ -342,9 +310,6 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
        size_t  ctrls_size = 0;
        void __user *user_ptr = NULL;
 
-#ifdef __OLD_VIDIOC_
-       cmd = video_fix_command(cmd);
-#endif
        is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS ||
                       cmd == VIDIOC_TRY_EXT_CTRLS);
 
@@ -2379,9 +2344,6 @@ long video_ioctl2(struct file *file,
        void __user *user_ptr = NULL;
        void    **kernel_ptr = NULL;
 
-#ifdef __OLD_VIDIOC_
-       cmd = video_fix_command(cmd);
-#endif
        /*  Copy arguments into temp kernel buffer  */
        if (_IOC_DIR(cmd) != _IOC_NONE) {
                if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {

diff --git a/drivers/staging/easycap/easycap_ioctl.c b/drivers/staging/easycap/easycap_ioctl.c
index 447953a..7ac43da 100644 (file)
--- a/drivers/staging/easycap/easycap_ioctl.c
+++ b/drivers/staging/easycap/easycap_ioctl.c
@@ -1399,11 +1399,6 @@ case VIDIOC_G_CTRL: {
        break;
 }
 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-#if defined(VIDIOC_S_CTRL_OLD)
-case VIDIOC_S_CTRL_OLD: {
-       JOM(8, "VIDIOC_S_CTRL_OLD required at least for xawtv\n");
-}
-#endif /*VIDIOC_S_CTRL_OLD*/
 case VIDIOC_S_CTRL:
        {
        struct v4l2_control v4l2_control;

diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 5122b26..a94c4d5 100644 (file)
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -1935,16 +1935,6 @@ struct v4l2_dbg_chip_ident {
 /* Reminder: when adding new ioctls please add support for them to
    drivers/media/video/v4l2-compat-ioctl32.c as well! */
 
-#ifdef __OLD_VIDIOC_
-/* for compatibility, will go away some day */
-#define VIDIOC_OVERLAY_OLD             _IOWR('V', 14, int)
-#define VIDIOC_S_PARM_OLD               _IOW('V', 22, struct v4l2_streamparm)
-#define VIDIOC_S_CTRL_OLD               _IOW('V', 28, struct v4l2_control)
-#define VIDIOC_G_AUDIO_OLD             _IOWR('V', 33, struct v4l2_audio)
-#define VIDIOC_G_AUDOUT_OLD            _IOWR('V', 49, struct v4l2_audioout)
-#define VIDIOC_CROPCAP_OLD              _IOR('V', 58, struct v4l2_cropcap)
-#endif
-
 #define BASE_VIDIOC_PRIVATE    192             /* 192-255 are private */
 
 #endif /* __LINUX_VIDEODEV2_H */