Re: [PATCH v2 05/17] compat_ioctl: move more drivers to generic_compat_ioctl_ptrarg

Daniel Vetter
2018-09-12T15:58:49Z

On Wed, Sep 12, 2018 at 5:08 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> The .ioctl and .compat_ioctl file operations have the same prototype so
> they can both point to the same function, which works great almost all
> the time when all the commands are compatible.
>
> One exception is the s390 architecture, where a compat pointer is only
> 31 bit wide, and converting it into a 64-bit pointer requires calling
> compat_ptr(). Most drivers here will ever run in s390, but since we now
> have a generic helper for it, it's easy enough to use it consistently.
>
> I double-checked all these drivers to ensure that all ioctl arguments
> are used as pointers or are ignored, but are not interpreted as integer
> values.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

At least for the drm and dma-buf bits.
-Daniel

> ---
> drivers/android/binder.c | 2 +-
> drivers/crypto/qat/qat_common/adf_ctl_drv.c | 2 +-
> drivers/dma-buf/dma-buf.c | 4 +---
> drivers/dma-buf/sw_sync.c | 2 +-
> drivers/dma-buf/sync_file.c | 2 +-
> drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 +-
> drivers/hid/hidraw.c | 4 +---
> drivers/iio/industrialio-core.c | 2 +-
> drivers/infiniband/core/uverbs_main.c | 4 ++--
> drivers/media/rc/lirc_dev.c | 4 +---
> drivers/mfd/cros_ec_dev.c | 4 +---
> drivers/misc/vmw_vmci/vmci_host.c | 2 +-
> drivers/nvdimm/bus.c | 4 ++--
> drivers/nvme/host/core.c | 2 +-
> drivers/pci/switch/switchtec.c | 2 +-
> drivers/platform/x86/wmi.c | 2 +-
> drivers/rpmsg/rpmsg_char.c | 4 ++--
> drivers/sbus/char/display7seg.c | 2 +-
> drivers/sbus/char/envctrl.c | 4 +---
> drivers/scsi/3w-xxxx.c | 4 +---
> drivers/scsi/cxlflash/main.c | 2 +-
> drivers/scsi/esas2r/esas2r_main.c | 2 +-
> drivers/scsi/pmcraid.c | 4 +---
> drivers/staging/android/ion/ion.c | 4 +---
> drivers/staging/vme/devices/vme_user.c | 2 +-
> drivers/tee/tee_core.c | 2 +-
> drivers/usb/class/cdc-wdm.c | 2 +-
> drivers/usb/class/usbtmc.c | 4 +---
> drivers/video/fbdev/ps3fb.c | 2 +-
> drivers/virt/fsl_hypervisor.c | 2 +-
> fs/btrfs/super.c | 2 +-
> fs/ceph/dir.c | 2 +-
> fs/ceph/file.c | 2 +-
> fs/fuse/dev.c | 2 +-
> fs/notify/fanotify/fanotify_user.c | 2 +-
> fs/userfaultfd.c | 2 +-
> net/rfkill/core.c | 2 +-
> 37 files changed, 40 insertions(+), 58 deletions(-)
>
> diff --git a/drivers/android/binder.c b/drivers/android/binder.c
> index d58763b6b009..d2464f5759f8 100644
> --- a/drivers/android/binder.c
> +++ b/drivers/android/binder.c
> @@ -5576,7 +5576,7 @@ static const struct file_operations binder_fops = {
> .owner = THIS_MODULE,
> .poll = binder_poll,
> .unlocked_ioctl = binder_ioctl,
> - .compat_ioctl = binder_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .mmap = binder_mmap,
> .open = binder_open,
> .flush = binder_flush,
> diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
> index abc7a7f64d64..8ff77a70addc 100644
> --- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
> +++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
> @@ -68,7 +68,7 @@ static long adf_ctl_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
> static const struct file_operations adf_ctl_ops = {
> .owner = THIS_MODULE,
> .unlocked_ioctl = adf_ctl_ioctl,
> - .compat_ioctl = adf_ctl_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> struct adf_ctl_drv_info {
> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> index 13884474d158..a6d7dc4cf7e9 100644
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -325,9 +325,7 @@ static const struct file_operations dma_buf_fops = {
> .llseek = dma_buf_llseek,
> .poll = dma_buf_poll,
> .unlocked_ioctl = dma_buf_ioctl,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = dma_buf_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> /*
> diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c
> index 53c1d6d36a64..bc810506d487 100644
> --- a/drivers/dma-buf/sw_sync.c
> +++ b/drivers/dma-buf/sw_sync.c
> @@ -419,5 +419,5 @@ const struct file_operations sw_sync_debugfs_fops = {
> .open = sw_sync_debugfs_open,
> .release = sw_sync_debugfs_release,
> .unlocked_ioctl = sw_sync_ioctl,
> - .compat_ioctl = sw_sync_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
> diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c
> index 35dd06479867..1c64ed60c658 100644
> --- a/drivers/dma-buf/sync_file.c
> +++ b/drivers/dma-buf/sync_file.c
> @@ -488,5 +488,5 @@ static const struct file_operations sync_file_fops = {
> .release = sync_file_release,
> .poll = sync_file_poll,
> .unlocked_ioctl = sync_file_ioctl,
> - .compat_ioctl = sync_file_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> index 297b36c26a05..1d7b1e3c3ebe 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> @@ -47,7 +47,7 @@ static const char kfd_dev_name[] = "kfd";
> static const struct file_operations kfd_fops = {
> .owner = THIS_MODULE,
> .unlocked_ioctl = kfd_ioctl,
> - .compat_ioctl = kfd_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .open = kfd_open,
> .mmap = kfd_mmap,
> };
> diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
> index 4a44e48e08b2..e44b64812850 100644
> --- a/drivers/hid/hidraw.c
> +++ b/drivers/hid/hidraw.c
> @@ -476,9 +476,7 @@ static const struct file_operations hidraw_ops = {
> .release = hidraw_release,
> .unlocked_ioctl = hidraw_ioctl,
> .fasync = hidraw_fasync,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = hidraw_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .llseek = noop_llseek,
> };
>
> diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
> index a062cfddc5af..22844b94b0e9 100644
> --- a/drivers/iio/industrialio-core.c
> +++ b/drivers/iio/industrialio-core.c
> @@ -1630,7 +1630,7 @@ static const struct file_operations iio_buffer_fileops = {
> .owner = THIS_MODULE,
> .llseek = noop_llseek,
> .unlocked_ioctl = iio_ioctl,
> - .compat_ioctl = iio_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static int iio_check_unique_scan_index(struct iio_dev *indio_dev)
> diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
> index 823beca448e1..f4755c1c9cfa 100644
> --- a/drivers/infiniband/core/uverbs_main.c
> +++ b/drivers/infiniband/core/uverbs_main.c
> @@ -930,7 +930,7 @@ static const struct file_operations uverbs_fops = {
> .release = ib_uverbs_close,
> .llseek = no_llseek,
> .unlocked_ioctl = ib_uverbs_ioctl,
> - .compat_ioctl = ib_uverbs_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static const struct file_operations uverbs_mmap_fops = {
> @@ -941,7 +941,7 @@ static const struct file_operations uverbs_mmap_fops = {
> .release = ib_uverbs_close,
> .llseek = no_llseek,
> .unlocked_ioctl = ib_uverbs_ioctl,
> - .compat_ioctl = ib_uverbs_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static struct ib_client uverbs_client = {
> diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
> index f862f1b7f996..077209f414ed 100644
> --- a/drivers/media/rc/lirc_dev.c
> +++ b/drivers/media/rc/lirc_dev.c
> @@ -730,9 +730,7 @@ static const struct file_operations lirc_fops = {
> .owner = THIS_MODULE,
> .write = ir_lirc_transmit_ir,
> .unlocked_ioctl = ir_lirc_ioctl,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = ir_lirc_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .read = ir_lirc_read,
> .poll = ir_lirc_poll,
> .open = ir_lirc_open,
> diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
> index 999dac752bcc..35a04bcf55da 100644
> --- a/drivers/mfd/cros_ec_dev.c
> +++ b/drivers/mfd/cros_ec_dev.c
> @@ -258,9 +258,7 @@ static const struct file_operations fops = {
> .release = ec_device_release,
> .read = ec_device_read,
> .unlocked_ioctl = ec_device_ioctl,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = ec_device_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static void cros_ec_sensors_register(struct cros_ec_dev *ec)
> diff --git a/drivers/misc/vmw_vmci/vmci_host.c b/drivers/misc/vmw_vmci/vmci_host.c
> index 83e0c95d20a4..1308f889e53b 100644
> --- a/drivers/misc/vmw_vmci/vmci_host.c
> +++ b/drivers/misc/vmw_vmci/vmci_host.c
> @@ -983,7 +983,7 @@ static const struct file_operations vmuser_fops = {
> .release = vmci_host_close,
> .poll = vmci_host_poll,
> .unlocked_ioctl = vmci_host_unlocked_ioctl,
> - .compat_ioctl = vmci_host_unlocked_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static struct miscdevice vmci_host_miscdev = {
> diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
> index 8aae6dcc839f..7449cbc55df7 100644
> --- a/drivers/nvdimm/bus.c
> +++ b/drivers/nvdimm/bus.c
> @@ -1133,7 +1133,7 @@ static const struct file_operations nvdimm_bus_fops = {
> .owner = THIS_MODULE,
> .open = nd_open,
> .unlocked_ioctl = nd_ioctl,
> - .compat_ioctl = nd_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .llseek = noop_llseek,
> };
>
> @@ -1141,7 +1141,7 @@ static const struct file_operations nvdimm_fops = {
> .owner = THIS_MODULE,
> .open = nd_open,
> .unlocked_ioctl = nvdimm_ioctl,
> - .compat_ioctl = nvdimm_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .llseek = noop_llseek,
> };
>
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index dd8ec1dd9219..2d986f573a29 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -2579,7 +2579,7 @@ static const struct file_operations nvme_dev_fops = {
> .owner = THIS_MODULE,
> .open = nvme_dev_open,
> .unlocked_ioctl = nvme_dev_ioctl,
> - .compat_ioctl = nvme_dev_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static ssize_t nvme_sysfs_reset(struct device *dev,
> diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
> index 9940cc70f38b..4296919c784e 100644
> --- a/drivers/pci/switch/switchtec.c
> +++ b/drivers/pci/switch/switchtec.c
> @@ -967,7 +967,7 @@ static const struct file_operations switchtec_fops = {
> .read = switchtec_dev_read,
> .poll = switchtec_dev_poll,
> .unlocked_ioctl = switchtec_dev_ioctl,
> - .compat_ioctl = switchtec_dev_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static void link_event_work(struct work_struct *work)
> diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
> index 04791ea5d97b..e4d0697e07d6 100644
> --- a/drivers/platform/x86/wmi.c
> +++ b/drivers/platform/x86/wmi.c
> @@ -886,7 +886,7 @@ static const struct file_operations wmi_fops = {
> .read = wmi_char_read,
> .open = wmi_char_open,
> .unlocked_ioctl = wmi_ioctl,
> - .compat_ioctl = wmi_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static int wmi_dev_probe(struct device *dev)
> diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c
> index a76b963a7e50..02aefb2b2d47 100644
> --- a/drivers/rpmsg/rpmsg_char.c
> +++ b/drivers/rpmsg/rpmsg_char.c
> @@ -285,7 +285,7 @@ static const struct file_operations rpmsg_eptdev_fops = {
> .write = rpmsg_eptdev_write,
> .poll = rpmsg_eptdev_poll,
> .unlocked_ioctl = rpmsg_eptdev_ioctl,
> - .compat_ioctl = rpmsg_eptdev_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static ssize_t name_show(struct device *dev, struct device_attribute *attr,
> @@ -446,7 +446,7 @@ static const struct file_operations rpmsg_ctrldev_fops = {
> .open = rpmsg_ctrldev_open,
> .release = rpmsg_ctrldev_release,
> .unlocked_ioctl = rpmsg_ctrldev_ioctl,
> - .compat_ioctl = rpmsg_ctrldev_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static void rpmsg_ctrldev_release_device(struct device *dev)
> diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
> index 5c8ed7350a04..064fe7247eb2 100644
> --- a/drivers/sbus/char/display7seg.c
> +++ b/drivers/sbus/char/display7seg.c
> @@ -155,7 +155,7 @@ static long d7s_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
> static const struct file_operations d7s_fops = {
> .owner = THIS_MODULE,
> .unlocked_ioctl = d7s_ioctl,
> - .compat_ioctl = d7s_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .open = d7s_open,
> .release = d7s_release,
> .llseek = noop_llseek,
> diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
> index 56e962a01493..a26665ccea56 100644
> --- a/drivers/sbus/char/envctrl.c
> +++ b/drivers/sbus/char/envctrl.c
> @@ -714,9 +714,7 @@ static const struct file_operations envctrl_fops = {
> .owner = THIS_MODULE,
> .read = envctrl_read,
> .unlocked_ioctl = envctrl_ioctl,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = envctrl_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .open = envctrl_open,
> .release = envctrl_release,
> .llseek = noop_llseek,
> diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
> index 471366945bd4..86c9f22a152f 100644
> --- a/drivers/scsi/3w-xxxx.c
> +++ b/drivers/scsi/3w-xxxx.c
> @@ -1047,9 +1047,7 @@ static int tw_chrdev_open(struct inode *inode, struct file *file)
> static const struct file_operations tw_fops = {
> .owner = THIS_MODULE,
> .unlocked_ioctl = tw_chrdev_ioctl,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = tw_chrdev_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .open = tw_chrdev_open,
> .release = NULL,
> .llseek = noop_llseek,
> diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
> index 6637116529aa..d968efeb50e8 100644
> --- a/drivers/scsi/cxlflash/main.c
> +++ b/drivers/scsi/cxlflash/main.c
> @@ -3596,7 +3596,7 @@ static const struct file_operations cxlflash_chr_fops = {
> .owner = THIS_MODULE,
> .open = cxlflash_chr_open,
> .unlocked_ioctl = cxlflash_chr_ioctl,
> - .compat_ioctl = cxlflash_chr_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> /**
> diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
> index c07118617d89..95142292e702 100644
> --- a/drivers/scsi/esas2r/esas2r_main.c
> +++ b/drivers/scsi/esas2r/esas2r_main.c
> @@ -614,7 +614,7 @@ static int __init esas2r_init(void)
>
> /* Handle ioctl calls to "/proc/scsi/esas2r/ATTOnode" */
> static const struct file_operations esas2r_proc_fops = {
> - .compat_ioctl = esas2r_proc_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .unlocked_ioctl = esas2r_proc_ioctl,
> };
>
> diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
> index 4e86994e10e8..8a8c73d3bdad 100644
> --- a/drivers/scsi/pmcraid.c
> +++ b/drivers/scsi/pmcraid.c
> @@ -3999,9 +3999,7 @@ static const struct file_operations pmcraid_fops = {
> .open = pmcraid_chr_open,
> .fasync = pmcraid_chr_fasync,
> .unlocked_ioctl = pmcraid_chr_ioctl,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = pmcraid_chr_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .llseek = noop_llseek,
> };
>
> diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
> index 99073325b0c0..ef727c235392 100644
> --- a/drivers/staging/android/ion/ion.c
> +++ b/drivers/staging/android/ion/ion.c
> @@ -484,9 +484,7 @@ int ion_query_heaps(struct ion_heap_query *query)
> static const struct file_operations ion_fops = {
> .owner = THIS_MODULE,
> .unlocked_ioctl = ion_ioctl,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = ion_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static int debug_shrink_set(void *data, u64 val)
> diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
> index 6a33aaa1a49f..568700ffd2f2 100644
> --- a/drivers/staging/vme/devices/vme_user.c
> +++ b/drivers/staging/vme/devices/vme_user.c
> @@ -494,7 +494,7 @@ static const struct file_operations vme_user_fops = {
> .write = vme_user_write,
> .llseek = vme_user_llseek,
> .unlocked_ioctl = vme_user_unlocked_ioctl,
> - .compat_ioctl = vme_user_unlocked_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .mmap = vme_user_mmap,
> };
>
> diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
> index dd46b758852a..cb79f28be894 100644
> --- a/drivers/tee/tee_core.c
> +++ b/drivers/tee/tee_core.c
> @@ -670,7 +670,7 @@ static const struct file_operations tee_fops = {
> .open = tee_open,
> .release = tee_release,
> .unlocked_ioctl = tee_ioctl,
> - .compat_ioctl = tee_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static void tee_release_device(struct device *dev)
> diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
> index bec581fb7c63..6e4998c8e64f 100644
> --- a/drivers/usb/class/cdc-wdm.c
> +++ b/drivers/usb/class/cdc-wdm.c
> @@ -724,7 +724,7 @@ static const struct file_operations wdm_fops = {
> .release = wdm_release,
> .poll = wdm_poll,
> .unlocked_ioctl = wdm_ioctl,
> - .compat_ioctl = wdm_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .llseek = noop_llseek,
> };
>
> diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
> index 83ffa5a14c3d..d5da47c4c462 100644
> --- a/drivers/usb/class/usbtmc.c
> +++ b/drivers/usb/class/usbtmc.c
> @@ -1460,9 +1460,7 @@ static const struct file_operations fops = {
> .open = usbtmc_open,
> .release = usbtmc_release,
> .unlocked_ioctl = usbtmc_ioctl,
> -#ifdef CONFIG_COMPAT
> - .compat_ioctl = usbtmc_ioctl,
> -#endif
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .fasync = usbtmc_fasync,
> .poll = usbtmc_poll,
> .llseek = default_llseek,
> diff --git a/drivers/video/fbdev/ps3fb.c b/drivers/video/fbdev/ps3fb.c
> index 5ed2db39d823..f9f8ffaf1c4a 100644
> --- a/drivers/video/fbdev/ps3fb.c
> +++ b/drivers/video/fbdev/ps3fb.c
> @@ -949,7 +949,7 @@ static struct fb_ops ps3fb_ops = {
> .fb_mmap = ps3fb_mmap,
> .fb_blank = ps3fb_blank,
> .fb_ioctl = ps3fb_ioctl,
> - .fb_compat_ioctl = ps3fb_ioctl
> + .fb_compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static const struct fb_fix_screeninfo ps3fb_fix = {
> diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c
> index 8ba726e600e9..406b7e492214 100644
> --- a/drivers/virt/fsl_hypervisor.c
> +++ b/drivers/virt/fsl_hypervisor.c
> @@ -703,7 +703,7 @@ static const struct file_operations fsl_hv_fops = {
> .poll = fsl_hv_poll,
> .read = fsl_hv_read,
> .unlocked_ioctl = fsl_hv_ioctl,
> - .compat_ioctl = fsl_hv_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
>
> static struct miscdevice fsl_hv_misc_dev = {
> diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
> index 6601c9aa5e35..2b5a8ad86305 100644
> --- a/fs/btrfs/super.c
> +++ b/fs/btrfs/super.c
> @@ -2352,7 +2352,7 @@ static const struct super_operations btrfs_super_ops = {
> static const struct file_operations btrfs_ctl_fops = {
> .open = btrfs_control_open,
> .unlocked_ioctl = btrfs_control_ioctl,
> - .compat_ioctl = btrfs_control_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .owner = THIS_MODULE,
> .llseek = noop_llseek,
> };
> diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
> index da73f29d7faa..eb869fe6774d 100644
> --- a/fs/ceph/dir.c
> +++ b/fs/ceph/dir.c
> @@ -1489,7 +1489,7 @@ const struct file_operations ceph_dir_fops = {
> .open = ceph_open,
> .release = ceph_release,
> .unlocked_ioctl = ceph_ioctl,
> - .compat_ioctl = ceph_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .fsync = ceph_fsync,
> .lock = ceph_lock,
> .flock = ceph_flock,
> diff --git a/fs/ceph/file.c b/fs/ceph/file.c
> index 92ab20433682..85094042cfac 100644
> --- a/fs/ceph/file.c
> +++ b/fs/ceph/file.c
> @@ -1842,7 +1842,7 @@ const struct file_operations ceph_file_fops = {
> .splice_read = generic_file_splice_read,
> .splice_write = iter_file_splice_write,
> .unlocked_ioctl = ceph_ioctl,
> - .compat_ioctl = ceph_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .fallocate = ceph_fallocate,
> };
>
> diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
> index 11ea2c4a38ab..a6d4a24963ed 100644
> --- a/fs/fuse/dev.c
> +++ b/fs/fuse/dev.c
> @@ -2258,7 +2258,7 @@ const struct file_operations fuse_dev_operations = {
> .release = fuse_dev_release,
> .fasync = fuse_dev_fasync,
> .unlocked_ioctl = fuse_dev_ioctl,
> - .compat_ioctl = fuse_dev_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> };
> EXPORT_SYMBOL_GPL(fuse_dev_operations);
>
> diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
> index 69054886915b..fc4193b384cf 100644
> --- a/fs/notify/fanotify/fanotify_user.c
> +++ b/fs/notify/fanotify/fanotify_user.c
> @@ -447,7 +447,7 @@ static const struct file_operations fanotify_fops = {
> .fasync = NULL,
> .release = fanotify_release,
> .unlocked_ioctl = fanotify_ioctl,
> - .compat_ioctl = fanotify_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .llseek = noop_llseek,
> };
>
> diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
> index bfa0ec69f924..bc9118b58a8a 100644
> --- a/fs/userfaultfd.c
> +++ b/fs/userfaultfd.c
> @@ -1878,7 +1878,7 @@ static const struct file_operations userfaultfd_fops = {
> .poll = userfaultfd_poll,
> .read = userfaultfd_read,
> .unlocked_ioctl = userfaultfd_ioctl,
> - .compat_ioctl = userfaultfd_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> .llseek = noop_llseek,
> };
>
> diff --git a/net/rfkill/core.c b/net/rfkill/core.c
> index 1355f5ca8d22..ba68b53f58ab 100644
> --- a/net/rfkill/core.c
> +++ b/net/rfkill/core.c
> @@ -1323,7 +1323,7 @@ static const struct file_operations rfkill_fops = {
> .release = rfkill_fop_release,
> #ifdef CONFIG_RFKILL_INPUT
> .unlocked_ioctl = rfkill_fop_ioctl,
> - .compat_ioctl = rfkill_fop_ioctl,
> + .compat_ioctl = generic_compat_ioctl_ptrarg,
> #endif
> .llseek = no_llseek,
> };
> --
> 2.18.0
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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