diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index a73a963..a9bda04 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -26,6 +26,7 @@
 #include <linux/key-type.h>
 
 struct statfs;
+struct smb_rqst;
 
 /*
  *****************************************************************
@@ -39,8 +40,7 @@
 extern __le16 *cifs_convert_path_to_utf16(const char *from,
 					  struct cifs_sb_info *cifs_sb);
 
-extern int smb2_verify_signature2(struct kvec *, unsigned int,
-				  struct TCP_Server_Info *);
+extern int smb2_verify_signature(struct smb_rqst *, struct TCP_Server_Info *);
 extern int smb2_check_receive(struct mid_q_entry *mid,
 			      struct TCP_Server_Info *server, bool log_error);
 extern int smb2_setup_request(struct cifs_ses *ses, struct kvec *iov,