CIFS: Separate protocol-specific code from transport routines

that lets us use this functions for SMB2.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index c273c12..e88601f 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -604,16 +604,15 @@
 }
 
 void
-dump_smb(struct smb_hdr *smb_buf, int smb_buf_length)
+dump_smb(void *buf, int smb_buf_length)
 {
 	int i, j;
 	char debug_line[17];
-	unsigned char *buffer;
+	unsigned char *buffer = buf;
 
 	if (traceSMB == 0)
 		return;
 
-	buffer = (unsigned char *) smb_buf;
 	for (i = 0, j = 0; i < smb_buf_length; i++, j++) {
 		if (i % 8 == 0) {
 			/* have reached the beginning of line */