cifs: remove minor build warning

The build warning:
  warning: symbol 'cifs_tcp_ses_lock' was not declared. Should it be static?
can be distracting. Fix two of these.
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/cifsfs.c

@@ -75,6 +75,8 @@ atomic_t small_buf_alloc_count;
 atomic_t total_buf_alloc_count;
 atomic_t total_small_buf_alloc_count;
 #endif/* STATS2 */
+struct list_head	cifs_tcp_ses_list;
+spinlock_t		cifs_tcp_ses_lock;
 static const struct super_operations cifs_super_ops;
 unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
 module_param(CIFSMaxBufSize, uint, 0444);

fs/cifs/cifsglob.h

@@ -1941,7 +1941,7 @@ require use of the stronger protocol */
  * sessions (and from that the tree connections) can be found
  * by iterating over cifs_tcp_ses_list
  */
-GLOBAL_EXTERN struct list_head		cifs_tcp_ses_list;
+extern struct list_head		cifs_tcp_ses_list;
 
 /*
  * This lock protects the cifs_tcp_ses_list, the list of smb sessions per
@@ -1953,7 +1953,7 @@ GLOBAL_EXTERN struct list_head		cifs_tcp_ses_list;
  * tcon->open_file_lock and that before file->file_info_lock since the
  * structure order is cifs_socket-->cifs_ses-->cifs_tcon-->cifs_file
  */
-GLOBAL_EXTERN spinlock_t		cifs_tcp_ses_lock;
+extern spinlock_t		cifs_tcp_ses_lock;
 
 /*
  * Global transaction id (XID) information