cifs: make compare_sids static

..nothing outside of cifsacl.c calls it. Also fix the incorrect
comment on the function. It returns 0 when they match.

Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>

diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 18437c5..5a312eb 100644 (file)
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -224,6 +224,56 @@ sid_to_str(struct cifs_sid *sidptr, char *sidstr)
        }
 }
 
+/*
+ * if the two SIDs (roughly equivalent to a UUID for a user or group) are
+ * the same returns zero, if they do not match returns non-zero.
+ */
+static int
+compare_sids(const struct cifs_sid *ctsid, const struct cifs_sid *cwsid)
+{
+       int i;
+       int num_subauth, num_sat, num_saw;
+
+       if ((!ctsid) || (!cwsid))
+               return 1;
+
+       /* compare the revision */
+       if (ctsid->revision != cwsid->revision) {
+               if (ctsid->revision > cwsid->revision)
+                       return 1;
+               else
+                       return -1;
+       }
+
+       /* compare all of the six auth values */
+       for (i = 0; i < NUM_AUTHS; ++i) {
+               if (ctsid->authority[i] != cwsid->authority[i]) {
+                       if (ctsid->authority[i] > cwsid->authority[i])
+                               return 1;
+                       else
+                               return -1;
+               }
+       }
+
+       /* compare all of the subauth values if any */
+       num_sat = ctsid->num_subauth;
+       num_saw = cwsid->num_subauth;
+       num_subauth = num_sat < num_saw ? num_sat : num_saw;
+       if (num_subauth) {
+               for (i = 0; i < num_subauth; ++i) {
+                       if (ctsid->sub_auth[i] != cwsid->sub_auth[i]) {
+                               if (le32_to_cpu(ctsid->sub_auth[i]) >
+                                       le32_to_cpu(cwsid->sub_auth[i]))
+                                       return 1;
+                               else
+                                       return -1;
+                       }
+               }
+       }
+
+       return 0; /* sids compare/match */
+}
+
 static void
 cifs_copy_sid(struct cifs_sid *dst, const struct cifs_sid *src)
 {
@@ -630,54 +680,6 @@ cifs_destroy_idmaptrees(void)
        spin_unlock(&gidsidlock);
 }
 
-/* if the two SIDs (roughly equivalent to a UUID for a user or group) are
-   the same returns 1, if they do not match returns 0 */
-int compare_sids(const struct cifs_sid *ctsid, const struct cifs_sid *cwsid)
-{
-       int i;
-       int num_subauth, num_sat, num_saw;
-
-       if ((!ctsid) || (!cwsid))
-               return 1;
-
-       /* compare the revision */
-       if (ctsid->revision != cwsid->revision) {
-               if (ctsid->revision > cwsid->revision)
-                       return 1;
-               else
-                       return -1;
-       }
-
-       /* compare all of the six auth values */
-       for (i = 0; i < NUM_AUTHS; ++i) {
-               if (ctsid->authority[i] != cwsid->authority[i]) {
-                       if (ctsid->authority[i] > cwsid->authority[i])
-                               return 1;
-                       else
-                               return -1;
-               }
-       }
-
-       /* compare all of the subauth values if any */
-       num_sat = ctsid->num_subauth;
-       num_saw = cwsid->num_subauth;
-       num_subauth = num_sat < num_saw ? num_sat : num_saw;
-       if (num_subauth) {
-               for (i = 0; i < num_subauth; ++i) {
-                       if (ctsid->sub_auth[i] != cwsid->sub_auth[i]) {
-                               if (le32_to_cpu(ctsid->sub_auth[i]) >
-                                       le32_to_cpu(cwsid->sub_auth[i]))
-                                       return 1;
-                               else
-                                       return -1;
-                       }
-               }
-       }
-
-       return 0; /* sids compare/match */
-}
-
-
 /* copy ntsd, owner sid, and group sid from a security descriptor to another */
 static void copy_sec_desc(const struct cifs_ntsd *pntsd,
                                struct cifs_ntsd *pnntsd, __u32 sidsoffset)

diff --git a/fs/cifs/cifsacl.h b/fs/cifs/cifsacl.h
index 80e0d66..18c7521 100644 (file)
--- a/fs/cifs/cifsacl.h
+++ b/fs/cifs/cifsacl.h
@@ -98,6 +98,4 @@ extern struct key_type cifs_idmap_key_type;
 extern const struct cred *root_cred;
 #endif /* KERNEL */
 
-extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
-
 #endif /* _CIFSACL_H */