Arnd Bergmann
2019-Apr-16 20:19 UTC
[PATCH v3 09/26] compat_ioctl: move drivers to compat_ptr_ioctl
Each of these drivers has a copy of the same trivial helper function to
convert the pointer argument and then call the native ioctl handler.
We now have a generic implementation of that, so use it.
Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen at linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg at mellanox.com>
Signed-off-by: Arnd Bergmann <arnd at arndb.de>
---
drivers/char/ppdev.c | 12 +---------
drivers/char/tpm/tpm_vtpm_proxy.c | 12 +---------
drivers/firewire/core-cdev.c | 12 +---------
drivers/hid/usbhid/hiddev.c | 11 +--------
drivers/hwtracing/stm/core.c | 12 +---------
drivers/misc/mei/main.c | 22 +----------------
drivers/mtd/ubi/cdev.c | 36 +++-------------------------
drivers/net/tap.c | 12 +---------
drivers/staging/pi433/pi433_if.c | 12 +---------
drivers/usb/core/devio.c | 16 +------------
drivers/vfio/vfio.c | 39 +++----------------------------
drivers/vhost/net.c | 12 +---------
drivers/vhost/scsi.c | 12 +---------
drivers/vhost/test.c | 12 +---------
drivers/vhost/vsock.c | 12 +---------
fs/fat/file.c | 13 +----------
16 files changed, 20 insertions(+), 237 deletions(-)
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index 1ae77b41050a..e96c8d9623e0 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -674,14 +674,6 @@ static long pp_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
return ret;
}
-#ifdef CONFIG_COMPAT
-static long pp_compat_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static int pp_open(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
@@ -790,9 +782,7 @@ static const struct file_operations pp_fops = {
.write = pp_write,
.poll = pp_poll,
.unlocked_ioctl = pp_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = pp_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.open = pp_open,
.release = pp_release,
};
diff --git a/drivers/char/tpm/tpm_vtpm_proxy.c
b/drivers/char/tpm/tpm_vtpm_proxy.c
index d74f3de74ae6..fb845f0a430b 100644
--- a/drivers/char/tpm/tpm_vtpm_proxy.c
+++ b/drivers/char/tpm/tpm_vtpm_proxy.c
@@ -675,20 +675,10 @@ static long vtpmx_fops_ioctl(struct file *f, unsigned int
ioctl,
}
}
-#ifdef CONFIG_COMPAT
-static long vtpmx_fops_compat_ioctl(struct file *f, unsigned int ioctl,
- unsigned long arg)
-{
- return vtpmx_fops_ioctl(f, ioctl, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static const struct file_operations vtpmx_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = vtpmx_fops_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = vtpmx_fops_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.llseek = noop_llseek,
};
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 16a7045736a9..fb934680fdd3 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -1659,14 +1659,6 @@ static long fw_device_op_ioctl(struct file *file,
return dispatch_ioctl(file->private_data, cmd, (void __user *)arg);
}
-#ifdef CONFIG_COMPAT
-static long fw_device_op_compat_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return dispatch_ioctl(file->private_data, cmd, compat_ptr(arg));
-}
-#endif
-
static int fw_device_op_mmap(struct file *file, struct vm_area_struct *vma)
{
struct client *client = file->private_data;
@@ -1808,7 +1800,5 @@ const struct file_operations fw_device_ops = {
.mmap = fw_device_op_mmap,
.release = fw_device_op_release,
.poll = fw_device_op_poll,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = fw_device_op_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
};
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index a746017fac17..ef4a1cd389d6 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -855,13 +855,6 @@ static long hiddev_ioctl(struct file *file, unsigned int
cmd, unsigned long arg)
return r;
}
-#ifdef CONFIG_COMPAT
-static long hiddev_compat_ioctl(struct file *file, unsigned int cmd, unsigned
long arg)
-{
- return hiddev_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static const struct file_operations hiddev_fops = {
.owner = THIS_MODULE,
.read = hiddev_read,
@@ -871,9 +864,7 @@ static const struct file_operations hiddev_fops = {
.release = hiddev_release,
.unlocked_ioctl = hiddev_ioctl,
.fasync = hiddev_fasync,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = hiddev_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.llseek = noop_llseek,
};
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index c7ba8acfd4d5..454da259f144 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -840,23 +840,13 @@ stm_char_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
return err;
}
-#ifdef CONFIG_COMPAT
-static long
-stm_char_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- return stm_char_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
-}
-#else
-#define stm_char_compat_ioctl NULL
-#endif
-
static const struct file_operations stm_fops = {
.open = stm_char_open,
.release = stm_char_release,
.write = stm_char_write,
.mmap = stm_char_mmap,
.unlocked_ioctl = stm_char_ioctl,
- .compat_ioctl = stm_char_compat_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
.llseek = no_llseek,
};
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 87281b3695e6..cc6af92cdef0 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -535,24 +535,6 @@ static long mei_ioctl(struct file *file, unsigned int cmd,
unsigned long data)
return rets;
}
-/**
- * mei_compat_ioctl - the compat IOCTL function
- *
- * @file: pointer to file structure
- * @cmd: ioctl command
- * @data: pointer to mei message structure
- *
- * Return: 0 on success , <0 on error
- */
-#ifdef CONFIG_COMPAT
-static long mei_compat_ioctl(struct file *file,
- unsigned int cmd, unsigned long data)
-{
- return mei_ioctl(file, cmd, (unsigned long)compat_ptr(data));
-}
-#endif
-
-
/**
* mei_poll - the poll function
*
@@ -855,9 +837,7 @@ static const struct file_operations mei_fops = {
.owner = THIS_MODULE,
.read = mei_read,
.unlocked_ioctl = mei_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = mei_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.open = mei_open,
.release = mei_release,
.write = mei_write,
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 947a8adbc799..265d34fa3efa 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -1091,36 +1091,6 @@ static long ctrl_cdev_ioctl(struct file *file, unsigned
int cmd,
return err;
}
-#ifdef CONFIG_COMPAT
-static long vol_cdev_compat_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- unsigned long translated_arg = (unsigned long)compat_ptr(arg);
-
- return vol_cdev_ioctl(file, cmd, translated_arg);
-}
-
-static long ubi_cdev_compat_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- unsigned long translated_arg = (unsigned long)compat_ptr(arg);
-
- return ubi_cdev_ioctl(file, cmd, translated_arg);
-}
-
-static long ctrl_cdev_compat_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- unsigned long translated_arg = (unsigned long)compat_ptr(arg);
-
- return ctrl_cdev_ioctl(file, cmd, translated_arg);
-}
-#else
-#define vol_cdev_compat_ioctl NULL
-#define ubi_cdev_compat_ioctl NULL
-#define ctrl_cdev_compat_ioctl NULL
-#endif
-
/* UBI volume character device operations */
const struct file_operations ubi_vol_cdev_operations = {
.owner = THIS_MODULE,
@@ -1131,7 +1101,7 @@ const struct file_operations ubi_vol_cdev_operations = {
.write = vol_cdev_write,
.fsync = vol_cdev_fsync,
.unlocked_ioctl = vol_cdev_ioctl,
- .compat_ioctl = vol_cdev_compat_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
};
/* UBI character device operations */
@@ -1139,13 +1109,13 @@ const struct file_operations ubi_cdev_operations = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.unlocked_ioctl = ubi_cdev_ioctl,
- .compat_ioctl = ubi_cdev_compat_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
};
/* UBI control character device operations */
const struct file_operations ubi_ctrl_cdev_operations = {
.owner = THIS_MODULE,
.unlocked_ioctl = ctrl_cdev_ioctl,
- .compat_ioctl = ctrl_cdev_compat_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
.llseek = no_llseek,
};
diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index 2ea9b4976f4a..ebe425e65992 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c
@@ -1123,14 +1123,6 @@ static long tap_ioctl(struct file *file, unsigned int
cmd,
}
}
-#ifdef CONFIG_COMPAT
-static long tap_compat_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- return tap_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static const struct file_operations tap_fops = {
.owner = THIS_MODULE,
.open = tap_open,
@@ -1140,9 +1132,7 @@ static const struct file_operations tap_fops = {
.poll = tap_poll,
.llseek = no_llseek,
.unlocked_ioctl = tap_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = tap_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
};
static int tap_get_user_xdp(struct tap_queue *q, struct xdp_buff *xdp)
diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index b2314636dc89..ab7dfc7c2917 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -935,16 +935,6 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned
long arg)
return retval;
}
-#ifdef CONFIG_COMPAT
-static long
-pi433_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- return pi433_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
-}
-#else
-#define pi433_compat_ioctl NULL
-#endif /* CONFIG_COMPAT */
-
/*-------------------------------------------------------------------------*/
static int pi433_open(struct inode *inode, struct file *filp)
@@ -1101,7 +1091,7 @@ static const struct file_operations pi433_fops = {
.write = pi433_write,
.read = pi433_read,
.unlocked_ioctl = pi433_ioctl,
- .compat_ioctl = pi433_compat_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
.open = pi433_open,
.release = pi433_release,
.llseek = no_llseek,
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index fa783531ee88..d75052b36584 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -2568,18 +2568,6 @@ static long usbdev_ioctl(struct file *file, unsigned int
cmd,
return ret;
}
-#ifdef CONFIG_COMPAT
-static long usbdev_compat_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- int ret;
-
- ret = usbdev_do_ioctl(file, cmd, compat_ptr(arg));
-
- return ret;
-}
-#endif
-
/* No kernel lock - fine */
static __poll_t usbdev_poll(struct file *file,
struct poll_table_struct *wait)
@@ -2603,9 +2591,7 @@ const struct file_operations usbdev_file_operations = {
.read = usbdev_read,
.poll = usbdev_poll,
.unlocked_ioctl = usbdev_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = usbdev_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.mmap = usbdev_mmap,
.open = usbdev_open,
.release = usbdev_release,
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index a3030cdf3c18..a5efe82584a5 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1200,15 +1200,6 @@ static long vfio_fops_unl_ioctl(struct file *filep,
return ret;
}
-#ifdef CONFIG_COMPAT
-static long vfio_fops_compat_ioctl(struct file *filep,
- unsigned int cmd, unsigned long arg)
-{
- arg = (unsigned long)compat_ptr(arg);
- return vfio_fops_unl_ioctl(filep, cmd, arg);
-}
-#endif /* CONFIG_COMPAT */
-
static int vfio_fops_open(struct inode *inode, struct file *filep)
{
struct vfio_container *container;
@@ -1291,9 +1282,7 @@ static const struct file_operations vfio_fops = {
.read = vfio_fops_read,
.write = vfio_fops_write,
.unlocked_ioctl = vfio_fops_unl_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = vfio_fops_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.mmap = vfio_fops_mmap,
};
@@ -1572,15 +1561,6 @@ static long vfio_group_fops_unl_ioctl(struct file *filep,
return ret;
}
-#ifdef CONFIG_COMPAT
-static long vfio_group_fops_compat_ioctl(struct file *filep,
- unsigned int cmd, unsigned long arg)
-{
- arg = (unsigned long)compat_ptr(arg);
- return vfio_group_fops_unl_ioctl(filep, cmd, arg);
-}
-#endif /* CONFIG_COMPAT */
-
static int vfio_group_fops_open(struct inode *inode, struct file *filep)
{
struct vfio_group *group;
@@ -1636,9 +1616,7 @@ static int vfio_group_fops_release(struct inode *inode,
struct file *filep)
static const struct file_operations vfio_group_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = vfio_group_fops_unl_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = vfio_group_fops_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.open = vfio_group_fops_open,
.release = vfio_group_fops_release,
};
@@ -1703,24 +1681,13 @@ static int vfio_device_fops_mmap(struct file *filep,
struct vm_area_struct *vma)
return device->ops->mmap(device->device_data, vma);
}
-#ifdef CONFIG_COMPAT
-static long vfio_device_fops_compat_ioctl(struct file *filep,
- unsigned int cmd, unsigned long arg)
-{
- arg = (unsigned long)compat_ptr(arg);
- return vfio_device_fops_unl_ioctl(filep, cmd, arg);
-}
-#endif /* CONFIG_COMPAT */
-
static const struct file_operations vfio_device_fops = {
.owner = THIS_MODULE,
.release = vfio_device_fops_release,
.read = vfio_device_fops_read,
.write = vfio_device_fops_write,
.unlocked_ioctl = vfio_device_fops_unl_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = vfio_device_fops_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.mmap = vfio_device_fops_mmap,
};
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index df51a35cf537..1642b3573230 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -1765,14 +1765,6 @@ static long vhost_net_ioctl(struct file *f, unsigned int
ioctl,
}
}
-#ifdef CONFIG_COMPAT
-static long vhost_net_compat_ioctl(struct file *f, unsigned int ioctl,
- unsigned long arg)
-{
- return vhost_net_ioctl(f, ioctl, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static ssize_t vhost_net_chr_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
struct file *file = iocb->ki_filp;
@@ -1808,9 +1800,7 @@ static const struct file_operations vhost_net_fops = {
.write_iter = vhost_net_chr_write_iter,
.poll = vhost_net_chr_poll,
.unlocked_ioctl = vhost_net_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = vhost_net_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.open = vhost_net_open,
.llseek = noop_llseek,
};
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 618fb6461017..f9b14c39d89b 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -1721,21 +1721,11 @@ vhost_scsi_ioctl(struct file *f,
}
}
-#ifdef CONFIG_COMPAT
-static long vhost_scsi_compat_ioctl(struct file *f, unsigned int ioctl,
- unsigned long arg)
-{
- return vhost_scsi_ioctl(f, ioctl, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static const struct file_operations vhost_scsi_fops = {
.owner = THIS_MODULE,
.release = vhost_scsi_release,
.unlocked_ioctl = vhost_scsi_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = vhost_scsi_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.open = vhost_scsi_open,
.llseek = noop_llseek,
};
diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
index 40589850eb33..61d4d98c8f70 100644
--- a/drivers/vhost/test.c
+++ b/drivers/vhost/test.c
@@ -298,21 +298,11 @@ static long vhost_test_ioctl(struct file *f, unsigned int
ioctl,
}
}
-#ifdef CONFIG_COMPAT
-static long vhost_test_compat_ioctl(struct file *f, unsigned int ioctl,
- unsigned long arg)
-{
- return vhost_test_ioctl(f, ioctl, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static const struct file_operations vhost_test_fops = {
.owner = THIS_MODULE,
.release = vhost_test_release,
.unlocked_ioctl = vhost_test_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = vhost_test_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.open = vhost_test_open,
.llseek = noop_llseek,
};
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index bb5fc0e9fbc2..9a86202678b6 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -716,23 +716,13 @@ static long vhost_vsock_dev_ioctl(struct file *f, unsigned
int ioctl,
}
}
-#ifdef CONFIG_COMPAT
-static long vhost_vsock_dev_compat_ioctl(struct file *f, unsigned int ioctl,
- unsigned long arg)
-{
- return vhost_vsock_dev_ioctl(f, ioctl, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static const struct file_operations vhost_vsock_fops = {
.owner = THIS_MODULE,
.open = vhost_vsock_dev_open,
.release = vhost_vsock_dev_release,
.llseek = noop_llseek,
.unlocked_ioctl = vhost_vsock_dev_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = vhost_vsock_dev_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
};
static struct miscdevice vhost_vsock_misc = {
diff --git a/fs/fat/file.c b/fs/fat/file.c
index b3bed32946b1..f173d9261115 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -171,15 +171,6 @@ long fat_generic_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
}
}
-#ifdef CONFIG_COMPAT
-static long fat_generic_compat_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg)
-
-{
- return fat_generic_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
static int fat_file_release(struct inode *inode, struct file *filp)
{
if ((filp->f_mode & FMODE_WRITE) &&
@@ -209,9 +200,7 @@ const struct file_operations fat_file_operations = {
.mmap = generic_file_mmap,
.release = fat_file_release,
.unlocked_ioctl = fat_generic_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = fat_generic_compat_ioctl,
-#endif
+ .compat_ioctl = compat_ptr_ioctl,
.fsync = fat_file_fsync,
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
--
2.20.0
Jiri Kosina
2019-Apr-16 20:31 UTC
[PATCH v3 09/26] compat_ioctl: move drivers to compat_ptr_ioctl
On Tue, 16 Apr 2019, Arnd Bergmann wrote:> Each of these drivers has a copy of the same trivial helper function to > convert the pointer argument and then call the native ioctl handler. > > We now have a generic implementation of that, so use it. > > Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> > Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen at linux.intel.com> > Reviewed-by: Jason Gunthorpe <jgg at mellanox.com> > Signed-off-by: Arnd Bergmann <arnd at arndb.de> > --- > drivers/char/ppdev.c | 12 +--------- > drivers/char/tpm/tpm_vtpm_proxy.c | 12 +--------- > drivers/firewire/core-cdev.c | 12 +--------- > drivers/hid/usbhid/hiddev.c | 11 +--------For hiddev.c: Reviewed-by: Jiri Kosina <jkosina at suse.cz> -- Jiri Kosina SUSE Labs
Stefan Hajnoczi
2019-Apr-18 11:10 UTC
[PATCH v3 09/26] compat_ioctl: move drivers to compat_ptr_ioctl
On Tue, Apr 16, 2019 at 10:19:47PM +0200, Arnd Bergmann wrote:> Each of these drivers has a copy of the same trivial helper function to > convert the pointer argument and then call the native ioctl handler. > > We now have a generic implementation of that, so use it. > > Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> > Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen at linux.intel.com> > Reviewed-by: Jason Gunthorpe <jgg at mellanox.com> > Signed-off-by: Arnd Bergmann <arnd at arndb.de> > --- > drivers/char/ppdev.c | 12 +--------- > drivers/char/tpm/tpm_vtpm_proxy.c | 12 +--------- > drivers/firewire/core-cdev.c | 12 +--------- > drivers/hid/usbhid/hiddev.c | 11 +-------- > drivers/hwtracing/stm/core.c | 12 +--------- > drivers/misc/mei/main.c | 22 +---------------- > drivers/mtd/ubi/cdev.c | 36 +++------------------------- > drivers/net/tap.c | 12 +--------- > drivers/staging/pi433/pi433_if.c | 12 +--------- > drivers/usb/core/devio.c | 16 +------------ > drivers/vfio/vfio.c | 39 +++---------------------------- > drivers/vhost/net.c | 12 +--------- > drivers/vhost/scsi.c | 12 +--------- > drivers/vhost/test.c | 12 +--------- > drivers/vhost/vsock.c | 12 +--------- > fs/fat/file.c | 13 +---------- > 16 files changed, 20 insertions(+), 237 deletions(-)The vhost parts look good: Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 455 bytes Desc: not available URL: <http://lists.linuxfoundation.org/pipermail/virtualization/attachments/20190418/2b6aa9ed/attachment.sig>
Michael S. Tsirkin
2019-Apr-19 23:16 UTC
[PATCH v3 09/26] compat_ioctl: move drivers to compat_ptr_ioctl
On Tue, Apr 16, 2019 at 10:19:47PM +0200, Arnd Bergmann wrote:> Each of these drivers has a copy of the same trivial helper function to > convert the pointer argument and then call the native ioctl handler. > > We now have a generic implementation of that, so use it. > > Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> > Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen at linux.intel.com> > Reviewed-by: Jason Gunthorpe <jgg at mellanox.com> > Signed-off-by: Arnd Bergmann <arnd at arndb.de>Acked-by: Michael S. Tsirkin <mst at redhat.com>> --- > drivers/char/ppdev.c | 12 +--------- > drivers/char/tpm/tpm_vtpm_proxy.c | 12 +--------- > drivers/firewire/core-cdev.c | 12 +--------- > drivers/hid/usbhid/hiddev.c | 11 +-------- > drivers/hwtracing/stm/core.c | 12 +--------- > drivers/misc/mei/main.c | 22 +---------------- > drivers/mtd/ubi/cdev.c | 36 +++------------------------- > drivers/net/tap.c | 12 +--------- > drivers/staging/pi433/pi433_if.c | 12 +--------- > drivers/usb/core/devio.c | 16 +------------ > drivers/vfio/vfio.c | 39 +++---------------------------- > drivers/vhost/net.c | 12 +--------- > drivers/vhost/scsi.c | 12 +--------- > drivers/vhost/test.c | 12 +--------- > drivers/vhost/vsock.c | 12 +--------- > fs/fat/file.c | 13 +---------- > 16 files changed, 20 insertions(+), 237 deletions(-) > > diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c > index 1ae77b41050a..e96c8d9623e0 100644 > --- a/drivers/char/ppdev.c > +++ b/drivers/char/ppdev.c > @@ -674,14 +674,6 @@ static long pp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) > return ret; > } > > -#ifdef CONFIG_COMPAT > -static long pp_compat_ioctl(struct file *file, unsigned int cmd, > - unsigned long arg) > -{ > - return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static int pp_open(struct inode *inode, struct file *file) > { > unsigned int minor = iminor(inode); > @@ -790,9 +782,7 @@ static const struct file_operations pp_fops = { > .write = pp_write, > .poll = pp_poll, > .unlocked_ioctl = pp_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = pp_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .open = pp_open, > .release = pp_release, > }; > diff --git a/drivers/char/tpm/tpm_vtpm_proxy.c b/drivers/char/tpm/tpm_vtpm_proxy.c > index d74f3de74ae6..fb845f0a430b 100644 > --- a/drivers/char/tpm/tpm_vtpm_proxy.c > +++ b/drivers/char/tpm/tpm_vtpm_proxy.c > @@ -675,20 +675,10 @@ static long vtpmx_fops_ioctl(struct file *f, unsigned int ioctl, > } > } > > -#ifdef CONFIG_COMPAT > -static long vtpmx_fops_compat_ioctl(struct file *f, unsigned int ioctl, > - unsigned long arg) > -{ > - return vtpmx_fops_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static const struct file_operations vtpmx_fops = { > .owner = THIS_MODULE, > .unlocked_ioctl = vtpmx_fops_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = vtpmx_fops_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .llseek = noop_llseek, > }; > > diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c > index 16a7045736a9..fb934680fdd3 100644 > --- a/drivers/firewire/core-cdev.c > +++ b/drivers/firewire/core-cdev.c > @@ -1659,14 +1659,6 @@ static long fw_device_op_ioctl(struct file *file, > return dispatch_ioctl(file->private_data, cmd, (void __user *)arg); > } > > -#ifdef CONFIG_COMPAT > -static long fw_device_op_compat_ioctl(struct file *file, > - unsigned int cmd, unsigned long arg) > -{ > - return dispatch_ioctl(file->private_data, cmd, compat_ptr(arg)); > -} > -#endif > - > static int fw_device_op_mmap(struct file *file, struct vm_area_struct *vma) > { > struct client *client = file->private_data; > @@ -1808,7 +1800,5 @@ const struct file_operations fw_device_ops = { > .mmap = fw_device_op_mmap, > .release = fw_device_op_release, > .poll = fw_device_op_poll, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = fw_device_op_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > }; > diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c > index a746017fac17..ef4a1cd389d6 100644 > --- a/drivers/hid/usbhid/hiddev.c > +++ b/drivers/hid/usbhid/hiddev.c > @@ -855,13 +855,6 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) > return r; > } > > -#ifdef CONFIG_COMPAT > -static long hiddev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) > -{ > - return hiddev_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static const struct file_operations hiddev_fops = { > .owner = THIS_MODULE, > .read = hiddev_read, > @@ -871,9 +864,7 @@ static const struct file_operations hiddev_fops = { > .release = hiddev_release, > .unlocked_ioctl = hiddev_ioctl, > .fasync = hiddev_fasync, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = hiddev_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .llseek = noop_llseek, > }; > > diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c > index c7ba8acfd4d5..454da259f144 100644 > --- a/drivers/hwtracing/stm/core.c > +++ b/drivers/hwtracing/stm/core.c > @@ -840,23 +840,13 @@ stm_char_ioctl(struct file *file, unsigned int cmd, unsigned long arg) > return err; > } > > -#ifdef CONFIG_COMPAT > -static long > -stm_char_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) > -{ > - return stm_char_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > -} > -#else > -#define stm_char_compat_ioctl NULL > -#endif > - > static const struct file_operations stm_fops = { > .open = stm_char_open, > .release = stm_char_release, > .write = stm_char_write, > .mmap = stm_char_mmap, > .unlocked_ioctl = stm_char_ioctl, > - .compat_ioctl = stm_char_compat_ioctl, > + .compat_ioctl = compat_ptr_ioctl, > .llseek = no_llseek, > }; > > diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c > index 87281b3695e6..cc6af92cdef0 100644 > --- a/drivers/misc/mei/main.c > +++ b/drivers/misc/mei/main.c > @@ -535,24 +535,6 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data) > return rets; > } > > -/** > - * mei_compat_ioctl - the compat IOCTL function > - * > - * @file: pointer to file structure > - * @cmd: ioctl command > - * @data: pointer to mei message structure > - * > - * Return: 0 on success , <0 on error > - */ > -#ifdef CONFIG_COMPAT > -static long mei_compat_ioctl(struct file *file, > - unsigned int cmd, unsigned long data) > -{ > - return mei_ioctl(file, cmd, (unsigned long)compat_ptr(data)); > -} > -#endif > - > - > /** > * mei_poll - the poll function > * > @@ -855,9 +837,7 @@ static const struct file_operations mei_fops = { > .owner = THIS_MODULE, > .read = mei_read, > .unlocked_ioctl = mei_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = mei_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .open = mei_open, > .release = mei_release, > .write = mei_write, > diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c > index 947a8adbc799..265d34fa3efa 100644 > --- a/drivers/mtd/ubi/cdev.c > +++ b/drivers/mtd/ubi/cdev.c > @@ -1091,36 +1091,6 @@ static long ctrl_cdev_ioctl(struct file *file, unsigned int cmd, > return err; > } > > -#ifdef CONFIG_COMPAT > -static long vol_cdev_compat_ioctl(struct file *file, unsigned int cmd, > - unsigned long arg) > -{ > - unsigned long translated_arg = (unsigned long)compat_ptr(arg); > - > - return vol_cdev_ioctl(file, cmd, translated_arg); > -} > - > -static long ubi_cdev_compat_ioctl(struct file *file, unsigned int cmd, > - unsigned long arg) > -{ > - unsigned long translated_arg = (unsigned long)compat_ptr(arg); > - > - return ubi_cdev_ioctl(file, cmd, translated_arg); > -} > - > -static long ctrl_cdev_compat_ioctl(struct file *file, unsigned int cmd, > - unsigned long arg) > -{ > - unsigned long translated_arg = (unsigned long)compat_ptr(arg); > - > - return ctrl_cdev_ioctl(file, cmd, translated_arg); > -} > -#else > -#define vol_cdev_compat_ioctl NULL > -#define ubi_cdev_compat_ioctl NULL > -#define ctrl_cdev_compat_ioctl NULL > -#endif > - > /* UBI volume character device operations */ > const struct file_operations ubi_vol_cdev_operations = { > .owner = THIS_MODULE, > @@ -1131,7 +1101,7 @@ const struct file_operations ubi_vol_cdev_operations = { > .write = vol_cdev_write, > .fsync = vol_cdev_fsync, > .unlocked_ioctl = vol_cdev_ioctl, > - .compat_ioctl = vol_cdev_compat_ioctl, > + .compat_ioctl = compat_ptr_ioctl, > }; > > /* UBI character device operations */ > @@ -1139,13 +1109,13 @@ const struct file_operations ubi_cdev_operations = { > .owner = THIS_MODULE, > .llseek = no_llseek, > .unlocked_ioctl = ubi_cdev_ioctl, > - .compat_ioctl = ubi_cdev_compat_ioctl, > + .compat_ioctl = compat_ptr_ioctl, > }; > > /* UBI control character device operations */ > const struct file_operations ubi_ctrl_cdev_operations = { > .owner = THIS_MODULE, > .unlocked_ioctl = ctrl_cdev_ioctl, > - .compat_ioctl = ctrl_cdev_compat_ioctl, > + .compat_ioctl = compat_ptr_ioctl, > .llseek = no_llseek, > }; > diff --git a/drivers/net/tap.c b/drivers/net/tap.c > index 2ea9b4976f4a..ebe425e65992 100644 > --- a/drivers/net/tap.c > +++ b/drivers/net/tap.c > @@ -1123,14 +1123,6 @@ static long tap_ioctl(struct file *file, unsigned int cmd, > } > } > > -#ifdef CONFIG_COMPAT > -static long tap_compat_ioctl(struct file *file, unsigned int cmd, > - unsigned long arg) > -{ > - return tap_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static const struct file_operations tap_fops = { > .owner = THIS_MODULE, > .open = tap_open, > @@ -1140,9 +1132,7 @@ static const struct file_operations tap_fops = { > .poll = tap_poll, > .llseek = no_llseek, > .unlocked_ioctl = tap_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = tap_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > }; > > static int tap_get_user_xdp(struct tap_queue *q, struct xdp_buff *xdp) > diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c > index b2314636dc89..ab7dfc7c2917 100644 > --- a/drivers/staging/pi433/pi433_if.c > +++ b/drivers/staging/pi433/pi433_if.c > @@ -935,16 +935,6 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) > return retval; > } > > -#ifdef CONFIG_COMPAT > -static long > -pi433_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) > -{ > - return pi433_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); > -} > -#else > -#define pi433_compat_ioctl NULL > -#endif /* CONFIG_COMPAT */ > - > /*-------------------------------------------------------------------------*/ > > static int pi433_open(struct inode *inode, struct file *filp) > @@ -1101,7 +1091,7 @@ static const struct file_operations pi433_fops = { > .write = pi433_write, > .read = pi433_read, > .unlocked_ioctl = pi433_ioctl, > - .compat_ioctl = pi433_compat_ioctl, > + .compat_ioctl = compat_ptr_ioctl, > .open = pi433_open, > .release = pi433_release, > .llseek = no_llseek, > diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c > index fa783531ee88..d75052b36584 100644 > --- a/drivers/usb/core/devio.c > +++ b/drivers/usb/core/devio.c > @@ -2568,18 +2568,6 @@ static long usbdev_ioctl(struct file *file, unsigned int cmd, > return ret; > } > > -#ifdef CONFIG_COMPAT > -static long usbdev_compat_ioctl(struct file *file, unsigned int cmd, > - unsigned long arg) > -{ > - int ret; > - > - ret = usbdev_do_ioctl(file, cmd, compat_ptr(arg)); > - > - return ret; > -} > -#endif > - > /* No kernel lock - fine */ > static __poll_t usbdev_poll(struct file *file, > struct poll_table_struct *wait) > @@ -2603,9 +2591,7 @@ const struct file_operations usbdev_file_operations = { > .read = usbdev_read, > .poll = usbdev_poll, > .unlocked_ioctl = usbdev_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = usbdev_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .mmap = usbdev_mmap, > .open = usbdev_open, > .release = usbdev_release, > diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c > index a3030cdf3c18..a5efe82584a5 100644 > --- a/drivers/vfio/vfio.c > +++ b/drivers/vfio/vfio.c > @@ -1200,15 +1200,6 @@ static long vfio_fops_unl_ioctl(struct file *filep, > return ret; > } > > -#ifdef CONFIG_COMPAT > -static long vfio_fops_compat_ioctl(struct file *filep, > - unsigned int cmd, unsigned long arg) > -{ > - arg = (unsigned long)compat_ptr(arg); > - return vfio_fops_unl_ioctl(filep, cmd, arg); > -} > -#endif /* CONFIG_COMPAT */ > - > static int vfio_fops_open(struct inode *inode, struct file *filep) > { > struct vfio_container *container; > @@ -1291,9 +1282,7 @@ static const struct file_operations vfio_fops = { > .read = vfio_fops_read, > .write = vfio_fops_write, > .unlocked_ioctl = vfio_fops_unl_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = vfio_fops_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .mmap = vfio_fops_mmap, > }; > > @@ -1572,15 +1561,6 @@ static long vfio_group_fops_unl_ioctl(struct file *filep, > return ret; > } > > -#ifdef CONFIG_COMPAT > -static long vfio_group_fops_compat_ioctl(struct file *filep, > - unsigned int cmd, unsigned long arg) > -{ > - arg = (unsigned long)compat_ptr(arg); > - return vfio_group_fops_unl_ioctl(filep, cmd, arg); > -} > -#endif /* CONFIG_COMPAT */ > - > static int vfio_group_fops_open(struct inode *inode, struct file *filep) > { > struct vfio_group *group; > @@ -1636,9 +1616,7 @@ static int vfio_group_fops_release(struct inode *inode, struct file *filep) > static const struct file_operations vfio_group_fops = { > .owner = THIS_MODULE, > .unlocked_ioctl = vfio_group_fops_unl_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = vfio_group_fops_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .open = vfio_group_fops_open, > .release = vfio_group_fops_release, > }; > @@ -1703,24 +1681,13 @@ static int vfio_device_fops_mmap(struct file *filep, struct vm_area_struct *vma) > return device->ops->mmap(device->device_data, vma); > } > > -#ifdef CONFIG_COMPAT > -static long vfio_device_fops_compat_ioctl(struct file *filep, > - unsigned int cmd, unsigned long arg) > -{ > - arg = (unsigned long)compat_ptr(arg); > - return vfio_device_fops_unl_ioctl(filep, cmd, arg); > -} > -#endif /* CONFIG_COMPAT */ > - > static const struct file_operations vfio_device_fops = { > .owner = THIS_MODULE, > .release = vfio_device_fops_release, > .read = vfio_device_fops_read, > .write = vfio_device_fops_write, > .unlocked_ioctl = vfio_device_fops_unl_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = vfio_device_fops_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .mmap = vfio_device_fops_mmap, > }; > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index df51a35cf537..1642b3573230 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -1765,14 +1765,6 @@ static long vhost_net_ioctl(struct file *f, unsigned int ioctl, > } > } > > -#ifdef CONFIG_COMPAT > -static long vhost_net_compat_ioctl(struct file *f, unsigned int ioctl, > - unsigned long arg) > -{ > - return vhost_net_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static ssize_t vhost_net_chr_read_iter(struct kiocb *iocb, struct iov_iter *to) > { > struct file *file = iocb->ki_filp; > @@ -1808,9 +1800,7 @@ static const struct file_operations vhost_net_fops = { > .write_iter = vhost_net_chr_write_iter, > .poll = vhost_net_chr_poll, > .unlocked_ioctl = vhost_net_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = vhost_net_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .open = vhost_net_open, > .llseek = noop_llseek, > }; > diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c > index 618fb6461017..f9b14c39d89b 100644 > --- a/drivers/vhost/scsi.c > +++ b/drivers/vhost/scsi.c > @@ -1721,21 +1721,11 @@ vhost_scsi_ioctl(struct file *f, > } > } > > -#ifdef CONFIG_COMPAT > -static long vhost_scsi_compat_ioctl(struct file *f, unsigned int ioctl, > - unsigned long arg) > -{ > - return vhost_scsi_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static const struct file_operations vhost_scsi_fops = { > .owner = THIS_MODULE, > .release = vhost_scsi_release, > .unlocked_ioctl = vhost_scsi_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = vhost_scsi_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .open = vhost_scsi_open, > .llseek = noop_llseek, > }; > diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c > index 40589850eb33..61d4d98c8f70 100644 > --- a/drivers/vhost/test.c > +++ b/drivers/vhost/test.c > @@ -298,21 +298,11 @@ static long vhost_test_ioctl(struct file *f, unsigned int ioctl, > } > } > > -#ifdef CONFIG_COMPAT > -static long vhost_test_compat_ioctl(struct file *f, unsigned int ioctl, > - unsigned long arg) > -{ > - return vhost_test_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static const struct file_operations vhost_test_fops = { > .owner = THIS_MODULE, > .release = vhost_test_release, > .unlocked_ioctl = vhost_test_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = vhost_test_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .open = vhost_test_open, > .llseek = noop_llseek, > }; > diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c > index bb5fc0e9fbc2..9a86202678b6 100644 > --- a/drivers/vhost/vsock.c > +++ b/drivers/vhost/vsock.c > @@ -716,23 +716,13 @@ static long vhost_vsock_dev_ioctl(struct file *f, unsigned int ioctl, > } > } > > -#ifdef CONFIG_COMPAT > -static long vhost_vsock_dev_compat_ioctl(struct file *f, unsigned int ioctl, > - unsigned long arg) > -{ > - return vhost_vsock_dev_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static const struct file_operations vhost_vsock_fops = { > .owner = THIS_MODULE, > .open = vhost_vsock_dev_open, > .release = vhost_vsock_dev_release, > .llseek = noop_llseek, > .unlocked_ioctl = vhost_vsock_dev_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = vhost_vsock_dev_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > }; > > static struct miscdevice vhost_vsock_misc = { > diff --git a/fs/fat/file.c b/fs/fat/file.c > index b3bed32946b1..f173d9261115 100644 > --- a/fs/fat/file.c > +++ b/fs/fat/file.c > @@ -171,15 +171,6 @@ long fat_generic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) > } > } > > -#ifdef CONFIG_COMPAT > -static long fat_generic_compat_ioctl(struct file *filp, unsigned int cmd, > - unsigned long arg) > - > -{ > - return fat_generic_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static int fat_file_release(struct inode *inode, struct file *filp) > { > if ((filp->f_mode & FMODE_WRITE) && > @@ -209,9 +200,7 @@ const struct file_operations fat_file_operations = { > .mmap = generic_file_mmap, > .release = fat_file_release, > .unlocked_ioctl = fat_generic_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = fat_generic_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, > .fsync = fat_file_fsync, > .splice_read = generic_file_splice_read, > .splice_write = iter_file_splice_write, > -- > 2.20.0
Winkler, Tomas
2019-Apr-20 08:08 UTC
[PATCH v3 09/26] compat_ioctl: move drivers to compat_ptr_ioctl
> > On Tue, Apr 16, 2019 at 10:19:47PM +0200, Arnd Bergmann wrote: > > Each of these drivers has a copy of the same trivial helper function > > to convert the pointer argument and then call the native ioctl handler. > > > > We now have a generic implementation of that, so use it. > > > > Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> > > Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen at linux.intel.com> > > Reviewed-by: Jason Gunthorpe <jgg at mellanox.com> > > Signed-off-by: Arnd Bergmann <arnd at arndb.de> > > Acked-by: Michael S. Tsirkin <mst at redhat.com>Acked-by: Tomas Winkler <tomas.winkler at intel.com>> > > --- > > drivers/char/ppdev.c | 12 +--------- > > drivers/char/tpm/tpm_vtpm_proxy.c | 12 +--------- > > drivers/firewire/core-cdev.c | 12 +--------- > > drivers/hid/usbhid/hiddev.c | 11 +-------- > > drivers/hwtracing/stm/core.c | 12 +--------- > > drivers/misc/mei/main.c | 22 +---------------- > > drivers/mtd/ubi/cdev.c | 36 +++------------------------- > > drivers/net/tap.c | 12 +--------- > > drivers/staging/pi433/pi433_if.c | 12 +--------- > > drivers/usb/core/devio.c | 16 +------------ > > drivers/vfio/vfio.c | 39 +++---------------------------- > > drivers/vhost/net.c | 12 +--------- > > drivers/vhost/scsi.c | 12 +--------- > > drivers/vhost/test.c | 12 +--------- > > drivers/vhost/vsock.c | 12 +--------- > > fs/fat/file.c | 13 +---------- > > 16 files changed, 20 insertions(+), 237 deletions(-) > > > > diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c index > > 1ae77b41050a..e96c8d9623e0 100644 > > --- a/drivers/char/ppdev.c > > +++ b/drivers/char/ppdev.c > > @@ -674,14 +674,6 @@ static long pp_ioctl(struct file *file, unsigned int > cmd, unsigned long arg) > > return ret; > > } > > > > -#ifdef CONFIG_COMPAT > > -static long pp_compat_ioctl(struct file *file, unsigned int cmd, > > - unsigned long arg) > > -{ > > - return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static int pp_open(struct inode *inode, struct file *file) { > > unsigned int minor = iminor(inode); > > @@ -790,9 +782,7 @@ static const struct file_operations pp_fops = { > > .write = pp_write, > > .poll = pp_poll, > > .unlocked_ioctl = pp_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = pp_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .open = pp_open, > > .release = pp_release, > > }; > > diff --git a/drivers/char/tpm/tpm_vtpm_proxy.c > > b/drivers/char/tpm/tpm_vtpm_proxy.c > > index d74f3de74ae6..fb845f0a430b 100644 > > --- a/drivers/char/tpm/tpm_vtpm_proxy.c > > +++ b/drivers/char/tpm/tpm_vtpm_proxy.c > > @@ -675,20 +675,10 @@ static long vtpmx_fops_ioctl(struct file *f, unsigned > int ioctl, > > } > > } > > > > -#ifdef CONFIG_COMPAT > > -static long vtpmx_fops_compat_ioctl(struct file *f, unsigned int ioctl, > > - unsigned long arg) > > -{ > > - return vtpmx_fops_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static const struct file_operations vtpmx_fops = { > > .owner = THIS_MODULE, > > .unlocked_ioctl = vtpmx_fops_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = vtpmx_fops_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .llseek = noop_llseek, > > }; > > > > diff --git a/drivers/firewire/core-cdev.c > > b/drivers/firewire/core-cdev.c index 16a7045736a9..fb934680fdd3 100644 > > --- a/drivers/firewire/core-cdev.c > > +++ b/drivers/firewire/core-cdev.c > > @@ -1659,14 +1659,6 @@ static long fw_device_op_ioctl(struct file *file, > > return dispatch_ioctl(file->private_data, cmd, (void __user *)arg); > > } > > > > -#ifdef CONFIG_COMPAT > > -static long fw_device_op_compat_ioctl(struct file *file, > > - unsigned int cmd, unsigned long arg) > > -{ > > - return dispatch_ioctl(file->private_data, cmd, compat_ptr(arg)); > > -} > > -#endif > > - > > static int fw_device_op_mmap(struct file *file, struct vm_area_struct > > *vma) { > > struct client *client = file->private_data; @@ -1808,7 +1800,5 @@ > > const struct file_operations fw_device_ops = { > > .mmap = fw_device_op_mmap, > > .release = fw_device_op_release, > > .poll = fw_device_op_poll, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = fw_device_op_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > }; > > diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c > > index a746017fac17..ef4a1cd389d6 100644 > > --- a/drivers/hid/usbhid/hiddev.c > > +++ b/drivers/hid/usbhid/hiddev.c > > @@ -855,13 +855,6 @@ static long hiddev_ioctl(struct file *file, unsigned int > cmd, unsigned long arg) > > return r; > > } > > > > -#ifdef CONFIG_COMPAT > > -static long hiddev_compat_ioctl(struct file *file, unsigned int cmd, > > unsigned long arg) -{ > > - return hiddev_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static const struct file_operations hiddev_fops = { > > .owner = THIS_MODULE, > > .read = hiddev_read, > > @@ -871,9 +864,7 @@ static const struct file_operations hiddev_fops = { > > .release = hiddev_release, > > .unlocked_ioctl = hiddev_ioctl, > > .fasync = hiddev_fasync, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = hiddev_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .llseek = noop_llseek, > > }; > > > > diff --git a/drivers/hwtracing/stm/core.c > > b/drivers/hwtracing/stm/core.c index c7ba8acfd4d5..454da259f144 100644 > > --- a/drivers/hwtracing/stm/core.c > > +++ b/drivers/hwtracing/stm/core.c > > @@ -840,23 +840,13 @@ stm_char_ioctl(struct file *file, unsigned int cmd, > unsigned long arg) > > return err; > > } > > > > -#ifdef CONFIG_COMPAT > > -static long > > -stm_char_compat_ioctl(struct file *file, unsigned int cmd, unsigned > > long arg) -{ > > - return stm_char_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > > -} > > -#else > > -#define stm_char_compat_ioctl NULL > > -#endif > > - > > static const struct file_operations stm_fops = { > > .open = stm_char_open, > > .release = stm_char_release, > > .write = stm_char_write, > > .mmap = stm_char_mmap, > > .unlocked_ioctl = stm_char_ioctl, > > - .compat_ioctl = stm_char_compat_ioctl, > > + .compat_ioctl = compat_ptr_ioctl, > > .llseek = no_llseek, > > }; > > > > diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index > > 87281b3695e6..cc6af92cdef0 100644 > > --- a/drivers/misc/mei/main.c > > +++ b/drivers/misc/mei/main.c > > @@ -535,24 +535,6 @@ static long mei_ioctl(struct file *file, unsigned int > cmd, unsigned long data) > > return rets; > > } > > > > -/** > > - * mei_compat_ioctl - the compat IOCTL function > > - * > > - * @file: pointer to file structure > > - * @cmd: ioctl command > > - * @data: pointer to mei message structure > > - * > > - * Return: 0 on success , <0 on error > > - */ > > -#ifdef CONFIG_COMPAT > > -static long mei_compat_ioctl(struct file *file, > > - unsigned int cmd, unsigned long data) > > -{ > > - return mei_ioctl(file, cmd, (unsigned long)compat_ptr(data)); > > -} > > -#endif > > - > > - > > /** > > * mei_poll - the poll function > > * > > @@ -855,9 +837,7 @@ static const struct file_operations mei_fops = { > > .owner = THIS_MODULE, > > .read = mei_read, > > .unlocked_ioctl = mei_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = mei_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .open = mei_open, > > .release = mei_release, > > .write = mei_write, > > diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index > > 947a8adbc799..265d34fa3efa 100644 > > --- a/drivers/mtd/ubi/cdev.c > > +++ b/drivers/mtd/ubi/cdev.c > > @@ -1091,36 +1091,6 @@ static long ctrl_cdev_ioctl(struct file *file, > unsigned int cmd, > > return err; > > } > > > > -#ifdef CONFIG_COMPAT > > -static long vol_cdev_compat_ioctl(struct file *file, unsigned int cmd, > > - unsigned long arg) > > -{ > > - unsigned long translated_arg = (unsigned long)compat_ptr(arg); > > - > > - return vol_cdev_ioctl(file, cmd, translated_arg); > > -} > > - > > -static long ubi_cdev_compat_ioctl(struct file *file, unsigned int cmd, > > - unsigned long arg) > > -{ > > - unsigned long translated_arg = (unsigned long)compat_ptr(arg); > > - > > - return ubi_cdev_ioctl(file, cmd, translated_arg); > > -} > > - > > -static long ctrl_cdev_compat_ioctl(struct file *file, unsigned int cmd, > > - unsigned long arg) > > -{ > > - unsigned long translated_arg = (unsigned long)compat_ptr(arg); > > - > > - return ctrl_cdev_ioctl(file, cmd, translated_arg); > > -} > > -#else > > -#define vol_cdev_compat_ioctl NULL > > -#define ubi_cdev_compat_ioctl NULL > > -#define ctrl_cdev_compat_ioctl NULL > > -#endif > > - > > /* UBI volume character device operations */ const struct > > file_operations ubi_vol_cdev_operations = { > > .owner = THIS_MODULE, > > @@ -1131,7 +1101,7 @@ const struct file_operations > ubi_vol_cdev_operations = { > > .write = vol_cdev_write, > > .fsync = vol_cdev_fsync, > > .unlocked_ioctl = vol_cdev_ioctl, > > - .compat_ioctl = vol_cdev_compat_ioctl, > > + .compat_ioctl = compat_ptr_ioctl, > > }; > > > > /* UBI character device operations */ @@ -1139,13 +1109,13 @@ const > > struct file_operations ubi_cdev_operations = { > > .owner = THIS_MODULE, > > .llseek = no_llseek, > > .unlocked_ioctl = ubi_cdev_ioctl, > > - .compat_ioctl = ubi_cdev_compat_ioctl, > > + .compat_ioctl = compat_ptr_ioctl, > > }; > > > > /* UBI control character device operations */ const struct > > file_operations ubi_ctrl_cdev_operations = { > > .owner = THIS_MODULE, > > .unlocked_ioctl = ctrl_cdev_ioctl, > > - .compat_ioctl = ctrl_cdev_compat_ioctl, > > + .compat_ioctl = compat_ptr_ioctl, > > .llseek = no_llseek, > > }; > > diff --git a/drivers/net/tap.c b/drivers/net/tap.c index > > 2ea9b4976f4a..ebe425e65992 100644 > > --- a/drivers/net/tap.c > > +++ b/drivers/net/tap.c > > @@ -1123,14 +1123,6 @@ static long tap_ioctl(struct file *file, unsigned int > cmd, > > } > > } > > > > -#ifdef CONFIG_COMPAT > > -static long tap_compat_ioctl(struct file *file, unsigned int cmd, > > - unsigned long arg) > > -{ > > - return tap_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static const struct file_operations tap_fops = { > > .owner = THIS_MODULE, > > .open = tap_open, > > @@ -1140,9 +1132,7 @@ static const struct file_operations tap_fops = { > > .poll = tap_poll, > > .llseek = no_llseek, > > .unlocked_ioctl = tap_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = tap_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > }; > > > > static int tap_get_user_xdp(struct tap_queue *q, struct xdp_buff > > *xdp) diff --git a/drivers/staging/pi433/pi433_if.c > > b/drivers/staging/pi433/pi433_if.c > > index b2314636dc89..ab7dfc7c2917 100644 > > --- a/drivers/staging/pi433/pi433_if.c > > +++ b/drivers/staging/pi433/pi433_if.c > > @@ -935,16 +935,6 @@ pi433_ioctl(struct file *filp, unsigned int cmd, > unsigned long arg) > > return retval; > > } > > > > -#ifdef CONFIG_COMPAT > > -static long > > -pi433_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long > > arg) -{ > > - return pi433_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); > > -} > > -#else > > -#define pi433_compat_ioctl NULL > > -#endif /* CONFIG_COMPAT */ > > - > > > > /*-------------------------------------------------------------------- > > -----*/ > > > > static int pi433_open(struct inode *inode, struct file *filp) @@ > > -1101,7 +1091,7 @@ static const struct file_operations pi433_fops = { > > .write = pi433_write, > > .read = pi433_read, > > .unlocked_ioctl = pi433_ioctl, > > - .compat_ioctl = pi433_compat_ioctl, > > + .compat_ioctl = compat_ptr_ioctl, > > .open = pi433_open, > > .release = pi433_release, > > .llseek = no_llseek, > > diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index > > fa783531ee88..d75052b36584 100644 > > --- a/drivers/usb/core/devio.c > > +++ b/drivers/usb/core/devio.c > > @@ -2568,18 +2568,6 @@ static long usbdev_ioctl(struct file *file, unsigned > int cmd, > > return ret; > > } > > > > -#ifdef CONFIG_COMPAT > > -static long usbdev_compat_ioctl(struct file *file, unsigned int cmd, > > - unsigned long arg) > > -{ > > - int ret; > > - > > - ret = usbdev_do_ioctl(file, cmd, compat_ptr(arg)); > > - > > - return ret; > > -} > > -#endif > > - > > /* No kernel lock - fine */ > > static __poll_t usbdev_poll(struct file *file, > > struct poll_table_struct *wait) > > @@ -2603,9 +2591,7 @@ const struct file_operations usbdev_file_operations > = { > > .read = usbdev_read, > > .poll = usbdev_poll, > > .unlocked_ioctl = usbdev_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = usbdev_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .mmap = usbdev_mmap, > > .open = usbdev_open, > > .release = usbdev_release, > > diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index > > a3030cdf3c18..a5efe82584a5 100644 > > --- a/drivers/vfio/vfio.c > > +++ b/drivers/vfio/vfio.c > > @@ -1200,15 +1200,6 @@ static long vfio_fops_unl_ioctl(struct file *filep, > > return ret; > > } > > > > -#ifdef CONFIG_COMPAT > > -static long vfio_fops_compat_ioctl(struct file *filep, > > - unsigned int cmd, unsigned long arg) > > -{ > > - arg = (unsigned long)compat_ptr(arg); > > - return vfio_fops_unl_ioctl(filep, cmd, arg); > > -} > > -#endif /* CONFIG_COMPAT */ > > - > > static int vfio_fops_open(struct inode *inode, struct file *filep) { > > struct vfio_container *container; > > @@ -1291,9 +1282,7 @@ static const struct file_operations vfio_fops = { > > .read = vfio_fops_read, > > .write = vfio_fops_write, > > .unlocked_ioctl = vfio_fops_unl_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = vfio_fops_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .mmap = vfio_fops_mmap, > > }; > > > > @@ -1572,15 +1561,6 @@ static long vfio_group_fops_unl_ioctl(struct file > *filep, > > return ret; > > } > > > > -#ifdef CONFIG_COMPAT > > -static long vfio_group_fops_compat_ioctl(struct file *filep, > > - unsigned int cmd, unsigned long arg) > > -{ > > - arg = (unsigned long)compat_ptr(arg); > > - return vfio_group_fops_unl_ioctl(filep, cmd, arg); > > -} > > -#endif /* CONFIG_COMPAT */ > > - > > static int vfio_group_fops_open(struct inode *inode, struct file > > *filep) { > > struct vfio_group *group; > > @@ -1636,9 +1616,7 @@ static int vfio_group_fops_release(struct inode > > *inode, struct file *filep) static const struct file_operations vfio_group_fops > { > > .owner = THIS_MODULE, > > .unlocked_ioctl = vfio_group_fops_unl_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = vfio_group_fops_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .open = vfio_group_fops_open, > > .release = vfio_group_fops_release, > > }; > > @@ -1703,24 +1681,13 @@ static int vfio_device_fops_mmap(struct file > *filep, struct vm_area_struct *vma) > > return device->ops->mmap(device->device_data, vma); } > > > > -#ifdef CONFIG_COMPAT > > -static long vfio_device_fops_compat_ioctl(struct file *filep, > > - unsigned int cmd, unsigned long arg) > > -{ > > - arg = (unsigned long)compat_ptr(arg); > > - return vfio_device_fops_unl_ioctl(filep, cmd, arg); > > -} > > -#endif /* CONFIG_COMPAT */ > > - > > static const struct file_operations vfio_device_fops = { > > .owner = THIS_MODULE, > > .release = vfio_device_fops_release, > > .read = vfio_device_fops_read, > > .write = vfio_device_fops_write, > > .unlocked_ioctl = vfio_device_fops_unl_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = vfio_device_fops_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .mmap = vfio_device_fops_mmap, > > }; > > > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index > > df51a35cf537..1642b3573230 100644 > > --- a/drivers/vhost/net.c > > +++ b/drivers/vhost/net.c > > @@ -1765,14 +1765,6 @@ static long vhost_net_ioctl(struct file *f, unsigned > int ioctl, > > } > > } > > > > -#ifdef CONFIG_COMPAT > > -static long vhost_net_compat_ioctl(struct file *f, unsigned int ioctl, > > - unsigned long arg) > > -{ > > - return vhost_net_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static ssize_t vhost_net_chr_read_iter(struct kiocb *iocb, struct > > iov_iter *to) { > > struct file *file = iocb->ki_filp; > > @@ -1808,9 +1800,7 @@ static const struct file_operations vhost_net_fops > { > > .write_iter = vhost_net_chr_write_iter, > > .poll = vhost_net_chr_poll, > > .unlocked_ioctl = vhost_net_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = vhost_net_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .open = vhost_net_open, > > .llseek = noop_llseek, > > }; > > diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index > > 618fb6461017..f9b14c39d89b 100644 > > --- a/drivers/vhost/scsi.c > > +++ b/drivers/vhost/scsi.c > > @@ -1721,21 +1721,11 @@ vhost_scsi_ioctl(struct file *f, > > } > > } > > > > -#ifdef CONFIG_COMPAT > > -static long vhost_scsi_compat_ioctl(struct file *f, unsigned int ioctl, > > - unsigned long arg) > > -{ > > - return vhost_scsi_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static const struct file_operations vhost_scsi_fops = { > > .owner = THIS_MODULE, > > .release = vhost_scsi_release, > > .unlocked_ioctl = vhost_scsi_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = vhost_scsi_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .open = vhost_scsi_open, > > .llseek = noop_llseek, > > }; > > diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index > > 40589850eb33..61d4d98c8f70 100644 > > --- a/drivers/vhost/test.c > > +++ b/drivers/vhost/test.c > > @@ -298,21 +298,11 @@ static long vhost_test_ioctl(struct file *f, unsigned > int ioctl, > > } > > } > > > > -#ifdef CONFIG_COMPAT > > -static long vhost_test_compat_ioctl(struct file *f, unsigned int ioctl, > > - unsigned long arg) > > -{ > > - return vhost_test_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static const struct file_operations vhost_test_fops = { > > .owner = THIS_MODULE, > > .release = vhost_test_release, > > .unlocked_ioctl = vhost_test_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = vhost_test_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .open = vhost_test_open, > > .llseek = noop_llseek, > > }; > > diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index > > bb5fc0e9fbc2..9a86202678b6 100644 > > --- a/drivers/vhost/vsock.c > > +++ b/drivers/vhost/vsock.c > > @@ -716,23 +716,13 @@ static long vhost_vsock_dev_ioctl(struct file *f, > unsigned int ioctl, > > } > > } > > > > -#ifdef CONFIG_COMPAT > > -static long vhost_vsock_dev_compat_ioctl(struct file *f, unsigned int ioctl, > > - unsigned long arg) > > -{ > > - return vhost_vsock_dev_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static const struct file_operations vhost_vsock_fops = { > > .owner = THIS_MODULE, > > .open = vhost_vsock_dev_open, > > .release = vhost_vsock_dev_release, > > .llseek = noop_llseek, > > .unlocked_ioctl = vhost_vsock_dev_ioctl, -#ifdef CONFIG_COMPAT > > - .compat_ioctl = vhost_vsock_dev_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > }; > > > > static struct miscdevice vhost_vsock_misc = { diff --git > > a/fs/fat/file.c b/fs/fat/file.c index b3bed32946b1..f173d9261115 > > 100644 > > --- a/fs/fat/file.c > > +++ b/fs/fat/file.c > > @@ -171,15 +171,6 @@ long fat_generic_ioctl(struct file *filp, unsigned int > cmd, unsigned long arg) > > } > > } > > > > -#ifdef CONFIG_COMPAT > > -static long fat_generic_compat_ioctl(struct file *filp, unsigned int cmd, > > - unsigned long arg) > > - > > -{ > > - return fat_generic_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); > > -} > > -#endif > > - > > static int fat_file_release(struct inode *inode, struct file *filp) > > { > > if ((filp->f_mode & FMODE_WRITE) && > > @@ -209,9 +200,7 @@ const struct file_operations fat_file_operations = { > > .mmap = generic_file_mmap, > > .release = fat_file_release, > > .unlocked_ioctl = fat_generic_ioctl, > > -#ifdef CONFIG_COMPAT > > - .compat_ioctl = fat_generic_compat_ioctl, > > -#endif > > + .compat_ioctl = compat_ptr_ioctl, > > .fsync = fat_file_fsync, > > .splice_read = generic_file_splice_read, > > .splice_write = iter_file_splice_write, > > -- > > 2.20.0
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