[PATCH v2 02/17] compat_ioctl: move drivers to generic_compat_ioctl_ptrarg
From: Arnd Bergmann <arnd@arndb.de>
Date: 2018-09-12 15:01:03
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. Signed-off-by: Arnd Bergmann <arnd@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..c38a62457cf0 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 = generic_compat_ioctl_ptrarg, .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 87a0ce47f201..a170f5ca7416 100644
--- a/drivers/char/tpm/tpm_vtpm_proxy.c
+++ b/drivers/char/tpm/tpm_vtpm_proxy.c@@ -678,20 +678,10 @@ 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 = generic_compat_ioctl_ptrarg, .llseek = noop_llseek, };
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index d8e185582642..2acc0c9ddf94 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 = generic_compat_ioctl_ptrarg, };
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 23872d08308c..73a168f97024 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c@@ -845,13 +845,6 @@ 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,
@@ -861,9 +854,7 @@ 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 = generic_compat_ioctl_ptrarg, .llseek = noop_llseek, };
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index 10bcb5d73f90..3f5cbb948781 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c@@ -651,23 +651,13 @@ 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 = generic_compat_ioctl_ptrarg, .llseek = no_llseek, };
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 4d77a6ae183a..a26b645e432f 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 = generic_compat_ioctl_ptrarg, .open = mei_open, .release = mei_release, .write = mei_write,
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 22547d7a84ea..2aad1da86acc 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c@@ -1061,36 +1061,6 @@ 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,
@@ -1101,7 +1071,7 @@ 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 = generic_compat_ioctl_ptrarg, }; /* UBI character device operations */
@@ -1109,13 +1079,13 @@ 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 = generic_compat_ioctl_ptrarg, }; /* 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 = generic_compat_ioctl_ptrarg, .llseek = no_llseek, };
diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index f0f7cd977667..720deb07f2b4 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c@@ -1124,14 +1124,6 @@ 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,
@@ -1141,9 +1133,7 @@ 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 = generic_compat_ioctl_ptrarg, }; static int tap_sendmsg(struct socket *sock, struct msghdr *m,
diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index c85a805a1243..9e4caf7ad384 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c@@ -945,16 +945,6 @@ 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)
@@ -1111,7 +1101,7 @@ static const struct file_operations pi433_fops = { .write = pi433_write, .read = pi433_read, .unlocked_ioctl = pi433_ioctl, - .compat_ioctl = pi433_compat_ioctl, + .compat_ioctl = generic_compat_ioctl_ptrarg, .open = pi433_open, .release = pi433_release, .llseek = no_llseek,
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 6ce77b33da61..269e0befba2d 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c@@ -2553,18 +2553,6 @@ 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)
@@ -2588,9 +2576,7 @@ 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 = generic_compat_ioctl_ptrarg, .mmap = usbdev_mmap, .open = usbdev_open, .release = usbdev_release,
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 64833879f75d..79f08a99602d 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 = generic_compat_ioctl_ptrarg, .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 = generic_compat_ioctl_ptrarg, .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 = generic_compat_ioctl_ptrarg, .mmap = vfio_device_fops_mmap, };
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 4e656f89cb22..e9624350f6a5 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c@@ -1535,14 +1535,6 @@ 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;
@@ -1578,9 +1570,7 @@ 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 = generic_compat_ioctl_ptrarg, .open = vhost_net_open, .llseek = noop_llseek, };
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index c24bb690680b..9180d38de353 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c@@ -1495,21 +1495,11 @@ 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 = generic_compat_ioctl_ptrarg, .open = vhost_scsi_open, .llseek = noop_llseek, };
diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
index 40589850eb33..0b185b4712fb 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 = generic_compat_ioctl_ptrarg, .open = vhost_test_open, .llseek = noop_llseek, };
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 34bc3ab40c6d..83c60f3a9c09 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c@@ -699,23 +699,13 @@ 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 = generic_compat_ioctl_ptrarg, }; static struct miscdevice vhost_vsock_misc = {
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 4f3d72fb1e60..c52c9e9ca36b 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 = generic_compat_ioctl_ptrarg, .fsync = fat_file_fsync, .splice_read = generic_file_splice_read, .fallocate = fat_fallocate,
--
2.18.0
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