smb: server: pass struct smbdirect_socket to wait_for_send_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

@@ -978,10 +978,9 @@ static int wait_for_credits(struct smbdirect_socket *sc,
 	} while (true);
 }
 
-static int wait_for_send_credits(struct smb_direct_transport *t,
+static int wait_for_send_credits(struct smbdirect_socket *sc,
 				 struct smbdirect_send_batch *send_ctx)
 {
-	struct smbdirect_socket *sc = &t->socket;
 	int ret;
 
 	if (send_ctx &&
@@ -1173,7 +1172,7 @@ static int smb_direct_post_send_data(struct smb_direct_transport *t,
 	int data_length;
 	struct scatterlist sg[SMBDIRECT_SEND_IO_MAX_SGE - 1];
 
-	ret = wait_for_send_credits(t, send_ctx);
+	ret = wait_for_send_credits(sc, send_ctx);
 	if (ret)
 		return ret;