Remove externs, correct argument names and reformat declarations.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org
---
 fs/smb/client/cifs_swn.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/smb/client/cifs_swn.h b/fs/smb/client/cifs_swn.h
index 8a9d2a5c9077..955d07b69450 100644
--- a/fs/smb/client/cifs_swn.h
+++ b/fs/smb/client/cifs_swn.h
@@ -14,15 +14,15 @@ struct sk_buff;
 struct genl_info;
 
 #ifdef CONFIG_CIFS_SWN_UPCALL
-extern int cifs_swn_register(struct cifs_tcon *tcon);
+int cifs_swn_register(struct cifs_tcon *tcon);
 
-extern int cifs_swn_unregister(struct cifs_tcon *tcon);
+int cifs_swn_unregister(struct cifs_tcon *tcon);
 
-extern int cifs_swn_notify(struct sk_buff *skb, struct genl_info *info);
+int cifs_swn_notify(struct sk_buff *skb, struct genl_info *info);
 
-extern void cifs_swn_dump(struct seq_file *m);
+void cifs_swn_dump(struct seq_file *m);
 
-extern void cifs_swn_check(void);
+void cifs_swn_check(void);
 
 static inline bool cifs_swn_set_server_dstaddr(struct TCP_Server_Info *server)
 {