11 files changed, 13 insertions, 9 deletions

diff --git a/drivers/char/adi.c b/drivers/char/adi.c
index 751d7cc0da1b..1c76c8758f0f 100644
--- a/drivers/char/adi.c
+++ b/drivers/char/adi.c
@@ -14,12 +14,6 @@
 
 #define MAX_BUF_SZ	PAGE_SIZE
 
-static int adi_open(struct inode *inode, struct file *file)
-{
-	file->f_mode |= FMODE_UNSIGNED_OFFSET;
-	return 0;
-}
-
 static int read_mcd_tag(unsigned long addr)
 {
 	long err;
@@ -206,9 +200,9 @@ static loff_t adi_llseek(struct file *file, loff_t offset, int whence)
 static const struct file_operations adi_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= adi_llseek,
-	.open		= adi_open,
 	.read		= adi_read,
 	.write		= adi_write,
+	.fop_flags	= FOP_UNSIGNED_OFFSET,
 };
 
 static struct miscdevice adi_miscdev = {
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 7c359cc406d5..169eed162a7f 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -643,6 +643,7 @@ static const struct file_operations __maybe_unused mem_fops = {
 	.get_unmapped_area = get_unmapped_area_mem,
 	.mmap_capabilities = memory_mmap_capabilities,
 #endif
+	.fop_flags	= FOP_UNSIGNED_OFFSET,
 };
 
 static const struct file_operations null_fops = {
@@ -693,7 +694,7 @@ static const struct memdev {
 	umode_t mode;
 } devlist[] = {
 #ifdef CONFIG_DEVMEM
-	[DEVMEM_MINOR] = { "mem", &mem_fops, FMODE_UNSIGNED_OFFSET, 0 },
+	[DEVMEM_MINOR] = { "mem", &mem_fops, 0, 0 },
 #endif
 	[3] = { "null", &null_fops, FMODE_NOWAIT, 0666 },
 #ifdef CONFIG_DEVPORT
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 094498a0964b..d7ef8cbecf6c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -2908,6 +2908,7 @@ static const struct file_operations amdgpu_driver_kms_fops = {
 #ifdef CONFIG_PROC_FS
 	.show_fdinfo = drm_show_fdinfo,
 #endif
+	.fop_flags = FOP_UNSIGNED_OFFSET,
 };
 
 int amdgpu_file_to_fpriv(struct file *filp, struct amdgpu_fpriv **fpriv)
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
index 714e42b05108..f8de3cba1a08 100644
--- a/drivers/gpu/drm/drm_file.c
+++ b/drivers/gpu/drm/drm_file.c
@@ -318,6 +318,8 @@ int drm_open_helper(struct file *filp, struct drm_minor *minor)
 	if (dev->switch_power_state != DRM_SWITCH_POWER_ON &&
 	    dev->switch_power_state != DRM_SWITCH_POWER_DYNAMIC_OFF)
 		return -EINVAL;
+	if (WARN_ON_ONCE(!(filp->f_op->fop_flags & FOP_UNSIGNED_OFFSET)))
+		return -EINVAL;
 
 	drm_dbg_core(dev, "comm=\"%s\", pid=%d, minor=%d\n",
 		     current->comm, task_pid_nr(current), minor->index);
@@ -335,7 +337,6 @@ int drm_open_helper(struct file *filp, struct drm_minor *minor)
 	}
 
 	filp->private_data = priv;
-	filp->f_mode |= FMODE_UNSIGNED_OFFSET;
 	priv->filp = filp;
 
 	mutex_lock(&dev->filelist_mutex);
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 8b64f61ffaf9..d67c2b3ad901 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -498,6 +498,7 @@ static const struct file_operations psb_gem_fops = {
 	.mmap = drm_gem_mmap,
 	.poll = drm_poll,
 	.read = drm_read,
+	.fop_flags = FOP_UNSIGNED_OFFSET,
 };
 
 static const struct drm_driver driver = {
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index fb8e9c2fcea5..cf276299bccb 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -1671,6 +1671,7 @@ static const struct file_operations i915_driver_fops = {
 #ifdef CONFIG_PROC_FS
 	.show_fdinfo = drm_show_fdinfo,
 #endif
+	.fop_flags = FOP_UNSIGNED_OFFSET,
 };
 
 static int
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index a58c31089613..e243b42f8582 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -1274,6 +1274,7 @@ nouveau_driver_fops = {
 	.compat_ioctl = nouveau_compat_ioctl,
 #endif
 	.llseek = noop_llseek,
+	.fop_flags = FOP_UNSIGNED_OFFSET,
 };
 
 static struct drm_driver
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 7bf08164140e..ac49779ed03d 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -520,6 +520,7 @@ static const struct file_operations radeon_driver_kms_fops = {
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = radeon_kms_compat_ioctl,
 #endif
+	.fop_flags = FOP_UNSIGNED_OFFSET,
 };
 
 static const struct drm_ioctl_desc radeon_ioctls_kms[] = {
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 03d1c76aec2d..108c26a33edb 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -801,6 +801,7 @@ static const struct file_operations tegra_drm_fops = {
 	.read = drm_read,
 	.compat_ioctl = drm_compat_ioctl,
 	.llseek = noop_llseek,
+	.fop_flags = FOP_UNSIGNED_OFFSET,
 };
 
 static int tegra_drm_context_cleanup(int id, void *p, void *data)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 50ad3105c16e..2825dd3149ed 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1609,6 +1609,7 @@ static const struct file_operations vmwgfx_driver_fops = {
 	.compat_ioctl = vmw_compat_ioctl,
 #endif
 	.llseek = noop_llseek,
+	.fop_flags = FOP_UNSIGNED_OFFSET,
 };
 
 static const struct drm_driver driver = {
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index f2f1d8ddb221..2e5537d6608d 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -238,6 +238,7 @@ static const struct file_operations xe_driver_fops = {
 #ifdef CONFIG_PROC_FS
 	.show_fdinfo = drm_show_fdinfo,
 #endif
+	.fop_flags = FOP_UNSIGNED_OFFSET,
 };
 
 static struct drm_driver driver = {