smb: server: pass struct smbdirect_socket to wait_for_credits()

This will make it easier to move function to the common code
in future.

Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: metze-samba

fs/smb/server/transport_rdma.c

@@ -956,11 +956,10 @@ static int smb_direct_flush_send_list(struct smbdirect_socket *sc,
 	return ret;
 }
 
-static int wait_for_credits(struct smb_direct_transport *t,
+static int wait_for_credits(struct smbdirect_socket *sc,
 			    wait_queue_head_t *waitq, atomic_t *total_credits,
 			    int needed)
 {
-	struct smbdirect_socket *sc = &t->socket;
 	int ret;
 
 	do {
@@ -992,14 +991,14 @@ static int wait_for_send_credits(struct smb_direct_transport *t,
 			return ret;
 	}
 
-	return wait_for_credits(t, &sc->send_io.credits.wait_queue, &sc->send_io.credits.count, 1);
+	return wait_for_credits(sc, &sc->send_io.credits.wait_queue, &sc->send_io.credits.count, 1);
 }
 
 static int wait_for_rw_credits(struct smb_direct_transport *t, int credits)
 {
 	struct smbdirect_socket *sc = &t->socket;
 
-	return wait_for_credits(t,
+	return wait_for_credits(sc,
 				&sc->rw_io.credits.wait_queue,
 				&sc->rw_io.credits.count,
 				credits);