selinux: Remove redundant check for unknown labeling behavior

[ Upstream commit 270e8573145a26de924e2dc644596332d400445b ]

The check is already performed in ocontext_read() when the policy is
loaded. Removing the array also fixes the following warning when
building with clang:

security/selinux/hooks.c:338:20: error: variable 'labeling_behaviors'
    is not needed and will not be emitted
    [-Werror,-Wunneeded-internal-declaration]

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index de5c282cfd6fe91d29250461254b614e1f3c7f09..de1e43f6adf1ca1d7427a08b8983fd01011a26c3 100644 (file)
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -321,18 +321,6 @@ static void superblock_free_security(struct super_block *sb)
        kfree(sbsec);
 }
 
-/* The file system's label must be initialized prior to use. */
-
-static const char *labeling_behaviors[7] = {
-       "uses xattr",
-       "uses transition SIDs",
-       "uses task SIDs",
-       "uses genfs_contexts",
-       "not configured for labeling",
-       "uses mountpoint labeling",
-       "uses native labeling",
-};
-
 static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dentry);
 
 static inline int inode_doinit(struct inode *inode)
@@ -444,10 +432,6 @@ static int sb_finish_set_opts(struct super_block *sb)
                }
        }
 
-       if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
-               printk(KERN_ERR "SELinux: initialized (dev %s, type %s), unknown behavior\n",
-                      sb->s_id, sb->s_type->name);
-
        sbsec->flags |= SE_SBINITIALIZED;
        if (selinux_is_sblabel_mnt(sb))
                sbsec->flags |= SBLABEL_MNT;