smb: client: let smbd_post_send() make use of request->wr

We don't need a stack variable in addition.

Cc: <stable@vger.kernel.org> # 6.18.x
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: metze-samba

fs/smb/client/smbdirect.c

@@ -1105,7 +1105,6 @@ static int manage_keep_alive_before_sending(struct smbdirect_socket *sc)
 static int smbd_post_send(struct smbdirect_socket *sc,
 		struct smbdirect_send_io *request)
 {
-	struct ib_send_wr send_wr;
 	int rc, i;
 
 	for (i = 0; i < request->num_sge; i++) {
@@ -1121,14 +1120,14 @@ static int smbd_post_send(struct smbdirect_socket *sc,
 
 	request->cqe.done = send_done;
 
-	send_wr.next = NULL;
-	send_wr.wr_cqe = &request->cqe;
-	send_wr.sg_list = request->sge;
-	send_wr.num_sge = request->num_sge;
-	send_wr.opcode = IB_WR_SEND;
-	send_wr.send_flags = IB_SEND_SIGNALED;
+	request->wr.next = NULL;
+	request->wr.wr_cqe = &request->cqe;
+	request->wr.sg_list = request->sge;
+	request->wr.num_sge = request->num_sge;
+	request->wr.opcode = IB_WR_SEND;
+	request->wr.send_flags = IB_SEND_SIGNALED;
 
-	rc = ib_post_send(sc->ib.qp, &send_wr, NULL);
+	rc = ib_post_send(sc->ib.qp, &request->wr, NULL);
 	if (rc) {
 		log_rdma_send(ERR, "ib_post_send failed rc=%d\n", rc);
 		smbd_disconnect_rdma_connection(sc);