[RFC PATCH v2 03/14] device_cgroup: Remove explicit devcgroup_inode hooks

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All users (actually just fs/namei) of devcgroup_inode_mknod and
devcgroup_inode_permission are removed. Now drop the API completely.

Signed-off-by: Michael Weiß <michael.weiss@xxxxxxxxxxxxxxxxxxx>
---
 include/linux/device_cgroup.h | 47 -----------------------------------
 1 file changed, 47 deletions(-)

diff --git a/include/linux/device_cgroup.h b/include/linux/device_cgroup.h
index d02f32b7514e..d9a62b0cff87 100644
--- a/include/linux/device_cgroup.h
+++ b/include/linux/device_cgroup.h
@@ -14,54 +14,7 @@
 #if defined(CONFIG_CGROUP_DEVICE) || defined(CONFIG_CGROUP_BPF)
 int devcgroup_check_permission(short type, u32 major, u32 minor,
 			       short access);
-static inline int devcgroup_inode_permission(struct inode *inode, int mask)
-{
-	short type, access = 0;
-
-	if (likely(!inode->i_rdev))
-		return 0;
-
-	if (S_ISBLK(inode->i_mode))
-		type = DEVCG_DEV_BLOCK;
-	else if (S_ISCHR(inode->i_mode))
-		type = DEVCG_DEV_CHAR;
-	else
-		return 0;
-
-	if (mask & MAY_WRITE)
-		access |= DEVCG_ACC_WRITE;
-	if (mask & MAY_READ)
-		access |= DEVCG_ACC_READ;
-
-	return devcgroup_check_permission(type, imajor(inode), iminor(inode),
-					  access);
-}
-
-static inline int devcgroup_inode_mknod(int mode, dev_t dev)
-{
-	short type;
-
-	if (!S_ISBLK(mode) && !S_ISCHR(mode))
-		return 0;
-
-	if (S_ISCHR(mode) && dev == WHITEOUT_DEV)
-		return 0;
-
-	if (S_ISBLK(mode))
-		type = DEVCG_DEV_BLOCK;
-	else
-		type = DEVCG_DEV_CHAR;
-
-	return devcgroup_check_permission(type, MAJOR(dev), MINOR(dev),
-					  DEVCG_ACC_MKNOD);
-}
-
 #else
 static inline int devcgroup_check_permission(short type, u32 major, u32 minor,
 			       short access)
-{ return 0; }
-static inline int devcgroup_inode_permission(struct inode *inode, int mask)
-{ return 0; }
-static inline int devcgroup_inode_mknod(int mode, dev_t dev)
-{ return 0; }
 #endif
-- 
2.30.2





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