diff options
| -rw-r--r-- | drivers/gpu/drm/drm_ioc32.c | 109 |
1 files changed, 44 insertions, 65 deletions
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c index 262b8a6cb0b0..b0d882022a1f 100644 --- a/drivers/gpu/drm/drm_ioc32.c +++ b/drivers/gpu/drm/drm_ioc32.c @@ -618,17 +618,13 @@ static int compat_drm_agp_enable(struct file *file, unsigned int cmd, unsigned long arg) { drm_agp_mode32_t __user *argp = (void __user *)arg; - drm_agp_mode32_t m32; - struct drm_agp_mode __user *mode; + struct drm_agp_mode mode; - if (get_user(m32.mode, &argp->mode)) + if (get_user(mode.mode, &argp->mode)) return -EFAULT; - mode = compat_alloc_user_space(sizeof(*mode)); - if (put_user(m32.mode, &mode->mode)) - return -EFAULT; - - return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode); + return drm_ioctl_kernel(file, drm_agp_enable_ioctl, &mode, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); } typedef struct drm_agp_info32 { @@ -650,28 +646,22 @@ static int compat_drm_agp_info(struct file *file, unsigned int cmd, { drm_agp_info32_t __user *argp = (void __user *)arg; drm_agp_info32_t i32; - struct drm_agp_info __user *info; + struct drm_agp_info info; int err; - info = compat_alloc_user_space(sizeof(*info)); - if (!info) - return -EFAULT; - - err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info); + err = drm_ioctl_kernel(file, drm_agp_info_ioctl, &info, DRM_AUTH); if (err) return err; - if (__get_user(i32.agp_version_major, &info->agp_version_major) - || __get_user(i32.agp_version_minor, &info->agp_version_minor) - || __get_user(i32.mode, &info->mode) - || __get_user(i32.aperture_base, &info->aperture_base) - || __get_user(i32.aperture_size, &info->aperture_size) - || __get_user(i32.memory_allowed, &info->memory_allowed) - || __get_user(i32.memory_used, &info->memory_used) - || __get_user(i32.id_vendor, &info->id_vendor) - || __get_user(i32.id_device, &info->id_device)) - return -EFAULT; - + i32.agp_version_major = info.agp_version_major; + i32.agp_version_minor = info.agp_version_minor; + i32.mode = info.mode; + i32.aperture_base = info.aperture_base; + i32.aperture_size = info.aperture_size; + i32.memory_allowed = info.memory_allowed; + i32.memory_used = info.memory_used; + i32.id_vendor = info.id_vendor; + i32.id_device = info.id_device; if (copy_to_user(argp, &i32, sizeof(i32))) return -EFAULT; @@ -690,26 +680,24 @@ static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, { drm_agp_buffer32_t __user *argp = (void __user *)arg; drm_agp_buffer32_t req32; - struct drm_agp_buffer __user *request; + struct drm_agp_buffer request; int err; if (copy_from_user(&req32, argp, sizeof(req32))) return -EFAULT; - request = compat_alloc_user_space(sizeof(*request)); - if (!request - || __put_user(req32.size, &request->size) - || __put_user(req32.type, &request->type)) - return -EFAULT; - - err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request); + request.size = req32.size; + request.type = req32.type; + err = drm_ioctl_kernel(file, drm_agp_alloc_ioctl, &request, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); if (err) return err; - if (__get_user(req32.handle, &request->handle) - || __get_user(req32.physical, &request->physical) - || copy_to_user(argp, &req32, sizeof(req32))) { - drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request); + req32.handle = request.handle; + req32.physical = request.physical; + if (copy_to_user(argp, &req32, sizeof(req32))) { + drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); return -EFAULT; } @@ -720,16 +708,13 @@ static int compat_drm_agp_free(struct file *file, unsigned int cmd, unsigned long arg) { drm_agp_buffer32_t __user *argp = (void __user *)arg; - struct drm_agp_buffer __user *request; - u32 handle; + struct drm_agp_buffer request; - request = compat_alloc_user_space(sizeof(*request)); - if (!request - || get_user(handle, &argp->handle) - || __put_user(handle, &request->handle)) + if (get_user(request.handle, &argp->handle)) return -EFAULT; - return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request); + return drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); } typedef struct drm_agp_binding32 { @@ -742,34 +727,28 @@ static int compat_drm_agp_bind(struct file *file, unsigned int cmd, { drm_agp_binding32_t __user *argp = (void __user *)arg; drm_agp_binding32_t req32; - struct drm_agp_binding __user *request; + struct drm_agp_binding request; if (copy_from_user(&req32, argp, sizeof(req32))) return -EFAULT; - request = compat_alloc_user_space(sizeof(*request)); - if (!request - || __put_user(req32.handle, &request->handle) - || __put_user(req32.offset, &request->offset)) - return -EFAULT; - - return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request); + request.handle = req32.handle; + request.offset = req32.offset; + return drm_ioctl_kernel(file, drm_agp_bind_ioctl, &request, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); } static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, unsigned long arg) { drm_agp_binding32_t __user *argp = (void __user *)arg; - struct drm_agp_binding __user *request; - u32 handle; + struct drm_agp_binding request; - request = compat_alloc_user_space(sizeof(*request)); - if (!request - || get_user(handle, &argp->handle) - || __put_user(handle, &request->handle)) + if (get_user(request.handle, &argp->handle)) return -EFAULT; - return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request); + return drm_ioctl_kernel(file, drm_agp_unbind_ioctl, &request, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); } #endif /* CONFIG_AGP */ @@ -986,12 +965,12 @@ static struct { DRM_IOCTL32_DEF(DRM_IOCTL_RES_CTX, compat_drm_resctx), DRM_IOCTL32_DEF(DRM_IOCTL_DMA, compat_drm_dma), #if IS_ENABLED(CONFIG_AGP) - [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)].fn = compat_drm_agp_enable, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)].fn = compat_drm_agp_info, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)].fn = compat_drm_agp_alloc, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)].fn = compat_drm_agp_free, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)].fn = compat_drm_agp_bind, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)].fn = compat_drm_agp_unbind, + DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ENABLE, compat_drm_agp_enable), + DRM_IOCTL32_DEF(DRM_IOCTL_AGP_INFO, compat_drm_agp_info), + DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ALLOC, compat_drm_agp_alloc), + DRM_IOCTL32_DEF(DRM_IOCTL_AGP_FREE, compat_drm_agp_free), + DRM_IOCTL32_DEF(DRM_IOCTL_AGP_BIND, compat_drm_agp_bind), + DRM_IOCTL32_DEF(DRM_IOCTL_AGP_UNBIND, compat_drm_agp_unbind), #endif [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)].fn = compat_drm_sg_alloc, [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)].fn = compat_drm_sg_free, |