V4L (926_2): Moves compat32 functions from fs to v4l subsystem

This moves the 32 bit ioctl compatibility handlers for
Video4Linux into a new file and adds explicit calls to them
to each v4l device driver.

Unfortunately, there does not seem to be any code handling
the v4l2 ioctls, so quite often the code goes through two
separate conversions, first from 32 bit v4l to 64 bit v4l,
and from there to 64 bit v4l2. My patch does not change
that, so there is still much room for improvement.

Also, some drivers have additional ioctl numbers, for
which the conversion should be handled internally to
that driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

drivers/media/radio/miropcm20-radio.c

@@ -220,6 +220,7 @@ static struct file_operations pcm20_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= pcm20_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-aimslab.c

@@ -299,6 +299,7 @@ static struct file_operations rtrack_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl	        = rt_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-aztech.c

@@ -256,6 +256,7 @@ static struct file_operations aztech_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= az_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-cadet.c

@@ -490,6 +490,7 @@ static struct file_operations cadet_fops = {
 	.release       	= cadet_release,
 	.read		= cadet_read,
 	.ioctl		= cadet_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-gemtek-pci.c

@@ -301,6 +301,7 @@ static struct file_operations gemtek_pci_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= gemtek_pci_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-gemtek.c

@@ -233,6 +233,7 @@ static struct file_operations gemtek_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= gemtek_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-maestro.c

@@ -72,6 +72,7 @@ static struct file_operations maestro_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= radio_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-maxiradio.c

@@ -80,6 +80,7 @@ static struct file_operations maxiradio_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl	        = radio_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 static struct video_device maxiradio_radio =

drivers/media/radio/radio-rtrack2.c

@@ -199,6 +199,7 @@ static struct file_operations rtrack2_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= rt_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-sf16fmi.c

@@ -225,6 +225,7 @@ static struct file_operations fmi_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= fmi_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-sf16fmr2.c

@@ -356,6 +356,7 @@ static struct file_operations fmr2_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl          = fmr2_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-terratec.c

@@ -276,6 +276,7 @@ static struct file_operations terratec_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= tt_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-trust.c

@@ -255,6 +255,7 @@ static struct file_operations trust_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= tr_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-typhoon.c

@@ -261,6 +261,7 @@ static struct file_operations typhoon_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= typhoon_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/radio/radio-zoltrix.c

@@ -313,6 +313,7 @@ static struct file_operations zoltrix_fops =
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl		= zol_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek         = no_llseek,
 };
 

drivers/media/video/Makefile

@@ -8,7 +8,8 @@ zoran-objs      :=	zr36120.o zr36120_i2c.o zr36120_mem.o
 zr36067-objs	:=	zoran_procfs.o zoran_device.o \
 			zoran_driver.o zoran_card.o
 tuner-objs	:=	tuner-core.o tuner-simple.o mt20xx.o tda8290.o tea5767.o
-obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o v4l1-compat.o
+
+obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o v4l1-compat.o compat_ioctl32.o
 
 obj-$(CONFIG_VIDEO_BT848) += bttv.o msp3400.o tvaudio.o \
 	tda7432.o tda9875.o ir-kbd-i2c.o ir-kbd-gpio.o

drivers/media/video/arv.c

@@ -749,6 +749,7 @@ static struct file_operations ar_fops = {
 	.release	= video_exclusive_release,
 	.read		= ar_read,
 	.ioctl		= ar_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek		= no_llseek,
 };
 

drivers/media/video/bttv-driver.c

@@ -3120,6 +3120,7 @@ static struct file_operations bttv_fops =
 	.open	  = bttv_open,
 	.release  = bttv_release,
 	.ioctl	  = bttv_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek	  = no_llseek,
 	.read	  = bttv_read,
 	.mmap	  = bttv_mmap,

drivers/media/video/bw-qcam.c

@@ -875,6 +875,7 @@ static struct file_operations qcam_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl          = qcam_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.read		= qcam_read,
 	.llseek         = no_llseek,
 };

drivers/media/video/c-qcam.c

@@ -687,6 +687,7 @@ static struct file_operations qcam_fops = {
 	.open           = video_exclusive_open,
 	.release        = video_exclusive_release,
 	.ioctl          = qcam_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.read		= qcam_read,
 	.llseek         = no_llseek,
 };