From: Arnd Bergmann Date: Tue, 11 Sep 2018 19:59:08 +0000 (+0200) Subject: compat_ioctl: move more drivers to compat_ptr_ioctl X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1832f2d8ff69138aa70d3cb3b4ea3c2058e73aea;p=linux.git compat_ioctl: move more drivers to compat_ptr_ioctl 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 never 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. Acked-by: Jason Gunthorpe Acked-by: Daniel Vetter Acked-by: Mauro Carvalho Chehab Acked-by: Greg Kroah-Hartman Acked-by: David Sterba Acked-by: Darren Hart (VMware) Acked-by: Jonathan Cameron Acked-by: Bjorn Andersson Acked-by: Dan Williams Signed-off-by: Arnd Bergmann --- diff --git a/drivers/android/binder.c b/drivers/android/binder.c index c0a491277acac..c7079f071e23f 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -6063,7 +6063,7 @@ const struct file_operations binder_fops = { .owner = THIS_MODULE, .poll = binder_poll, .unlocked_ioctl = binder_ioctl, - .compat_ioctl = binder_ioctl, + .compat_ioctl = compat_ptr_ioctl, .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 abc7a7f64d645..ef0e482ee04f0 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 = compat_ptr_ioctl, }; struct adf_ctl_drv_info { diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 433d91d710e4e..5b8797be80dfb 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -415,9 +415,7 @@ 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 = compat_ptr_ioctl, .show_fdinfo = dma_buf_show_fdinfo, }; diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c index 6713cfb1995c6..348b3a9170fa4 100644 --- a/drivers/dma-buf/sw_sync.c +++ b/drivers/dma-buf/sw_sync.c @@ -408,5 +408,5 @@ 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 = compat_ptr_ioctl, }; diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c index 25c5c071645bd..76fb072c22dc4 100644 --- a/drivers/dma-buf/sync_file.c +++ b/drivers/dma-buf/sync_file.c @@ -480,5 +480,5 @@ 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 = compat_ptr_ioctl, }; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 1d3cd5c50d5f2..6283944387d6f 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -49,7 +49,7 @@ 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 = compat_ptr_ioctl, .open = kfd_open, .mmap = kfd_mmap, }; diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index bbc6ec1aa5cb1..a925f9fa70118 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -468,9 +468,7 @@ 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 = compat_ptr_ioctl, .llseek = noop_llseek, }; diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 524a686077ca6..9dd687534035c 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -1610,7 +1610,7 @@ static const struct file_operations iio_buffer_fileops = { .owner = THIS_MODULE, .llseek = noop_llseek, .unlocked_ioctl = iio_ioctl, - .compat_ioctl = iio_ioctl, + .compat_ioctl = compat_ptr_ioctl, }; 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 db98111b47f42..c4c652e870444 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -1139,7 +1139,7 @@ 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 = compat_ptr_ioctl, }; static const struct file_operations uverbs_mmap_fops = { @@ -1150,7 +1150,7 @@ 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 = compat_ptr_ioctl, }; static int ib_uverbs_get_nl_info(struct ib_device *ibdev, void *client_data, diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index f078f8a3aec88..9a8c1cf54ac4a 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -720,9 +720,7 @@ 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 = compat_ptr_ioctl, .read = ir_lirc_read, .poll = ir_lirc_poll, .open = ir_lirc_open, diff --git a/drivers/misc/vmw_vmci/vmci_host.c b/drivers/misc/vmw_vmci/vmci_host.c index 833e2bd248a57..903e321e8e87f 100644 --- a/drivers/misc/vmw_vmci/vmci_host.c +++ b/drivers/misc/vmw_vmci/vmci_host.c @@ -961,7 +961,7 @@ 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 = compat_ptr_ioctl, }; static struct miscdevice vmci_host_miscdev = { diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index d47412dcdf38d..38d41bbf178ae 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -1227,7 +1227,7 @@ static const struct file_operations nvdimm_bus_fops = { .owner = THIS_MODULE, .open = nd_open, .unlocked_ioctl = bus_ioctl, - .compat_ioctl = bus_ioctl, + .compat_ioctl = compat_ptr_ioctl, .llseek = noop_llseek, }; @@ -1235,7 +1235,7 @@ static const struct file_operations nvdimm_fops = { .owner = THIS_MODULE, .open = nd_open, .unlocked_ioctl = dimm_ioctl, - .compat_ioctl = dimm_ioctl, + .compat_ioctl = compat_ptr_ioctl, .llseek = noop_llseek, }; diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index fd7dea36c3b68..522280eb41152 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2947,7 +2947,7 @@ 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 = compat_ptr_ioctl, }; static ssize_t nvme_sysfs_reset(struct device *dev, diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index 8c94cd3fd1f21..66610f04d76d8 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -1025,7 +1025,7 @@ 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 = compat_ptr_ioctl, }; static void link_event_work(struct work_struct *work) diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 59e9aa0f96436..dc2e966a5c254 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -911,7 +911,7 @@ 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 = compat_ptr_ioctl, }; static int wmi_dev_probe(struct device *dev) diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c index eea5ebbb5119a..507bfe1638835 100644 --- a/drivers/rpmsg/rpmsg_char.c +++ b/drivers/rpmsg/rpmsg_char.c @@ -290,7 +290,7 @@ static const struct file_operations rpmsg_eptdev_fops = { .write_iter = rpmsg_eptdev_write_iter, .poll = rpmsg_eptdev_poll, .unlocked_ioctl = rpmsg_eptdev_ioctl, - .compat_ioctl = rpmsg_eptdev_ioctl, + .compat_ioctl = compat_ptr_ioctl, }; static ssize_t name_show(struct device *dev, struct device_attribute *attr, @@ -451,7 +451,7 @@ 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 = compat_ptr_ioctl, }; static void rpmsg_ctrldev_release_device(struct device *dev) diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c index 971fe074d7c9a..fad936eb845fc 100644 --- a/drivers/sbus/char/display7seg.c +++ b/drivers/sbus/char/display7seg.c @@ -156,7 +156,7 @@ 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 = compat_ptr_ioctl, .open = d7s_open, .release = d7s_release, .llseek = noop_llseek, diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c index a63d5e402ff21..12d66aa61ede5 100644 --- a/drivers/sbus/char/envctrl.c +++ b/drivers/sbus/char/envctrl.c @@ -715,9 +715,7 @@ 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 = compat_ptr_ioctl, .open = envctrl_open, .release = envctrl_release, .llseek = noop_llseek, diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 2b1e0d5030201..fb6444d0409cf 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -1049,9 +1049,7 @@ 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 = compat_ptr_ioctl, .open = tw_chrdev_open, .release = NULL, .llseek = noop_llseek, diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index 93ef97af22df4..2dbf35f827872 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -3593,7 +3593,7 @@ 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 = compat_ptr_ioctl, }; /** diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index fdbda5c05aa03..80c5a235d193c 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -613,7 +613,7 @@ 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 = compat_ptr_ioctl, .unlocked_ioctl = esas2r_proc_ioctl, }; diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index 398d2af60832c..7eb88fe1eb0bc 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -3973,9 +3973,7 @@ 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 = compat_ptr_ioctl, .llseek = noop_llseek, }; diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index e6b1ca141b930..c394686a8e7de 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -533,9 +533,7 @@ static long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) static const struct file_operations ion_fops = { .owner = THIS_MODULE, .unlocked_ioctl = ion_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = ion_ioctl, -#endif + .compat_ioctl = compat_ptr_ioctl, }; 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 6a33aaa1a49fb..fd0ea4dbcb915 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 = compat_ptr_ioctl, .mmap = vme_user_mmap, }; diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c index 0f16d9ffd8d12..37d22e39fd8d2 100644 --- a/drivers/tee/tee_core.c +++ b/drivers/tee/tee_core.c @@ -675,7 +675,7 @@ static const struct file_operations tee_fops = { .open = tee_open, .release = tee_release, .unlocked_ioctl = tee_ioctl, - .compat_ioctl = tee_ioctl, + .compat_ioctl = compat_ptr_ioctl, }; 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 70afb2ca1eabd..e3db6fbeadef8 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -734,7 +734,7 @@ static const struct file_operations wdm_fops = { .release = wdm_release, .poll = wdm_poll, .unlocked_ioctl = wdm_ioctl, - .compat_ioctl = wdm_ioctl, + .compat_ioctl = compat_ptr_ioctl, .llseek = noop_llseek, }; diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index dcd7066ffba22..ffc9c6fdd7e1d 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -2217,9 +2217,7 @@ static const struct file_operations fops = { .release = usbtmc_release, .flush = usbtmc_flush, .unlocked_ioctl = usbtmc_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = usbtmc_ioctl, -#endif + .compat_ioctl = compat_ptr_ioctl, .fasync = usbtmc_fasync, .poll = usbtmc_poll, .llseek = default_llseek, diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c index 93d5bebf9572a..1b0b11b55d2a0 100644 --- a/drivers/virt/fsl_hypervisor.c +++ b/drivers/virt/fsl_hypervisor.c @@ -706,7 +706,7 @@ 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 = compat_ptr_ioctl, }; static struct miscdevice fsl_hv_misc_dev = { diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 1b151af257728..d9ba089a49737 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -2297,7 +2297,7 @@ 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 = compat_ptr_ioctl, .owner = THIS_MODULE, .llseek = noop_llseek, }; diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index dadd617d826c9..23b089e6880a6 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -2260,7 +2260,7 @@ 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 = compat_ptr_ioctl, }; EXPORT_SYMBOL_GPL(fuse_dev_operations); diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 8508ab5750174..0aa362b885507 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -523,7 +523,7 @@ static const struct file_operations fanotify_fops = { .fasync = NULL, .release = fanotify_release, .unlocked_ioctl = fanotify_ioctl, - .compat_ioctl = fanotify_ioctl, + .compat_ioctl = compat_ptr_ioctl, .llseek = noop_llseek, }; diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index f9fd18670e22d..d7f54e535294b 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -1923,7 +1923,7 @@ static const struct file_operations userfaultfd_fops = { .poll = userfaultfd_poll, .read = userfaultfd_read, .unlocked_ioctl = userfaultfd_ioctl, - .compat_ioctl = userfaultfd_ioctl, + .compat_ioctl = compat_ptr_ioctl, .llseek = noop_llseek, }; diff --git a/net/rfkill/core.c b/net/rfkill/core.c index f9b08a6d8dbe4..c4be6a94ba979 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -1311,7 +1311,7 @@ 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 = compat_ptr_ioctl, #endif .llseek = no_llseek, };