1 files changed, 10 insertions, 71 deletions

diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 1cbecd64d697..4d3c586785a5 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -1258,44 +1258,28 @@ int match_target_ip(struct TCP_Server_Info *server,
 		    bool *result)
 {
 	int rc;
-	char *target, *tip = NULL;
-	struct sockaddr tipaddr;
+	char *target;
+	struct sockaddr_storage ss;
 
 	*result = false;
 
 	target = kzalloc(share_len + 3, GFP_KERNEL);
-	if (!target) {
-		rc = -ENOMEM;
-		goto out;
-	}
+	if (!target)
+		return -ENOMEM;
 
 	scnprintf(target, share_len + 3, "\\\\%.*s", (int)share_len, share);
 
 	cifs_dbg(FYI, "%s: target name: %s\n", __func__, target + 2);
 
-	rc = dns_resolve_server_name_to_ip(target, &tip, NULL);
-	if (rc < 0)
-		goto out;
-
-	cifs_dbg(FYI, "%s: target ip: %s\n", __func__, tip);
+	rc = dns_resolve_server_name_to_ip(target, (struct sockaddr *)&ss, NULL);
+	kfree(target);
 
-	if (!cifs_convert_address(&tipaddr, tip, strlen(tip))) {
-		cifs_dbg(VFS, "%s: failed to convert target ip address\n",
-			 __func__);
-		rc = -EINVAL;
-		goto out;
-	}
+	if (rc < 0)
+		return rc;
 
-	*result = cifs_match_ipaddr((struct sockaddr *)&server->dstaddr,
-				    &tipaddr);
+	*result = cifs_match_ipaddr((struct sockaddr *)&server->dstaddr, (struct sockaddr *)&ss);
 	cifs_dbg(FYI, "%s: ip addresses match: %u\n", __func__, *result);
-	rc = 0;
-
-out:
-	kfree(target);
-	kfree(tip);
-
-	return rc;
+	return 0;
 }
 
 int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix)
@@ -1314,49 +1298,4 @@ int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix)
 	cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
 	return 0;
 }
-
-/** cifs_dfs_query_info_nonascii_quirk
- * Handle weird Windows SMB server behaviour. It responds with
- * STATUS_OBJECT_NAME_INVALID code to SMB2 QUERY_INFO request
- * for "\<server>\<dfsname>\<linkpath>" DFS reference,
- * where <dfsname> contains non-ASCII unicode symbols.
- *
- * Check such DFS reference.
- */
-int cifs_dfs_query_info_nonascii_quirk(const unsigned int xid,
-				       struct cifs_tcon *tcon,
-				       struct cifs_sb_info *cifs_sb,
-				       const char *linkpath)
-{
-	char *treename, *dfspath, sep;
-	int treenamelen, linkpathlen, rc;
-
-	treename = tcon->tree_name;
-	/* MS-DFSC: All paths in REQ_GET_DFS_REFERRAL and RESP_GET_DFS_REFERRAL
-	 * messages MUST be encoded with exactly one leading backslash, not two
-	 * leading backslashes.
-	 */
-	sep = CIFS_DIR_SEP(cifs_sb);
-	if (treename[0] == sep && treename[1] == sep)
-		treename++;
-	linkpathlen = strlen(linkpath);
-	treenamelen = strnlen(treename, MAX_TREE_SIZE + 1);
-	dfspath = kzalloc(treenamelen + linkpathlen + 1, GFP_KERNEL);
-	if (!dfspath)
-		return -ENOMEM;
-	if (treenamelen)
-		memcpy(dfspath, treename, treenamelen);
-	memcpy(dfspath + treenamelen, linkpath, linkpathlen);
-	rc = dfs_cache_find(xid, tcon->ses, cifs_sb->local_nls,
-			    cifs_remap(cifs_sb), dfspath, NULL, NULL);
-	if (rc == 0) {
-		cifs_dbg(FYI, "DFS ref '%s' is found, emulate -EREMOTE\n",
-			 dfspath);
-		rc = -EREMOTE;
-	} else {
-		cifs_dbg(FYI, "%s: dfs_cache_find returned %d\n", __func__, rc);
-	}
-	kfree(dfspath);
-	return rc;
-}
 #endif