block/rnbd-srv: Remove unused arguments of rnbd_srv_rdma_ev

struct rtrs_srv is not used when handling rnbd_srv_rdma_ev messages, so
cleaned up
rdma_ev function pointer in rtrs_srv_ops also is changed.

Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Aleksei Marov <aleksei.marov@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20210419073722.15351-16-gi-oh.kim@ionos.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

drivers/block/rnbd/rnbd-srv.c

@@ -114,8 +114,7 @@ rnbd_get_sess_dev(int dev_id, struct rnbd_srv_session *srv_sess)
 	return sess_dev;
 }
 
-static int process_rdma(struct rtrs_srv *sess,
-			struct rnbd_srv_session *srv_sess,
+static int process_rdma(struct rnbd_srv_session *srv_sess,
 			struct rtrs_srv_op *id, void *data, u32 datalen,
 			const void *usr, size_t usrlen)
 {
@@ -344,8 +343,7 @@ void rnbd_srv_sess_dev_force_close(struct rnbd_srv_sess_dev *sess_dev,
 	mutex_unlock(&sess->lock);
 }
 
-static int process_msg_close(struct rtrs_srv *rtrs,
-			     struct rnbd_srv_session *srv_sess,
+static int process_msg_close(struct rnbd_srv_session *srv_sess,
 			     void *data, size_t datalen, const void *usr,
 			     size_t usrlen)
 {
@@ -364,20 +362,18 @@ static int process_msg_close(struct rtrs_srv *rtrs,
 	return 0;
 }
 
-static int process_msg_open(struct rtrs_srv *rtrs,
-			    struct rnbd_srv_session *srv_sess,
+static int process_msg_open(struct rnbd_srv_session *srv_sess,
 			    const void *msg, size_t len,
 			    void *data, size_t datalen);
 
-static int process_msg_sess_info(struct rtrs_srv *rtrs,
-				 struct rnbd_srv_session *srv_sess,
+static int process_msg_sess_info(struct rnbd_srv_session *srv_sess,
 				 const void *msg, size_t len,
 				 void *data, size_t datalen);
 
-static int rnbd_srv_rdma_ev(struct rtrs_srv *rtrs, void *priv,
-			     struct rtrs_srv_op *id, int dir,
-			     void *data, size_t datalen, const void *usr,
-			     size_t usrlen)
+static int rnbd_srv_rdma_ev(void *priv,
+			    struct rtrs_srv_op *id, int dir,
+			    void *data, size_t datalen, const void *usr,
+			    size_t usrlen)
 {
 	struct rnbd_srv_session *srv_sess = priv;
 	const struct rnbd_msg_hdr *hdr = usr;
@@ -391,19 +387,16 @@ static int rnbd_srv_rdma_ev(struct rtrs_srv *rtrs, void *priv,
 
 	switch (type) {
 	case RNBD_MSG_IO:
-		return process_rdma(rtrs, srv_sess, id, data, datalen, usr,
-				    usrlen);
+		return process_rdma(srv_sess, id, data, datalen, usr, usrlen);
 	case RNBD_MSG_CLOSE:
-		ret = process_msg_close(rtrs, srv_sess, data, datalen,
-					usr, usrlen);
+		ret = process_msg_close(srv_sess, data, datalen, usr, usrlen);
 		break;
 	case RNBD_MSG_OPEN:
-		ret = process_msg_open(rtrs, srv_sess, usr, usrlen,
-				       data, datalen);
+		ret = process_msg_open(srv_sess, usr, usrlen, data, datalen);
 		break;
 	case RNBD_MSG_SESS_INFO:
-		ret = process_msg_sess_info(rtrs, srv_sess, usr, usrlen,
-					    data, datalen);
+		ret = process_msg_sess_info(srv_sess, usr, usrlen, data,
+					    datalen);
 		break;
 	default:
 		pr_warn("Received unexpected message type %d with dir %d from session %s\n",
@@ -656,8 +649,7 @@ static char *rnbd_srv_get_full_path(struct rnbd_srv_session *srv_sess,
 	return full_path;
 }
 
-static int process_msg_sess_info(struct rtrs_srv *rtrs,
-				 struct rnbd_srv_session *srv_sess,
+static int process_msg_sess_info(struct rnbd_srv_session *srv_sess,
 				 const void *msg, size_t len,
 				 void *data, size_t datalen)
 {
@@ -698,8 +690,7 @@ find_srv_sess_dev(struct rnbd_srv_session *srv_sess, const char *dev_name)
 	return NULL;
 }
 
-static int process_msg_open(struct rtrs_srv *rtrs,
-			    struct rnbd_srv_session *srv_sess,
+static int process_msg_open(struct rnbd_srv_session *srv_sess,
 			    const void *msg, size_t len,
 			    void *data, size_t datalen)
 {

drivers/infiniband/ulp/rtrs/rtrs-srv.c

@@ -998,7 +998,7 @@ static void process_read(struct rtrs_srv_con *con,
 	usr_len = le16_to_cpu(msg->usr_len);
 	data_len = off - usr_len;
 	data = page_address(srv->chunks[buf_id]);
-	ret = ctx->ops.rdma_ev(srv, srv->priv, id, READ, data, data_len,
+	ret = ctx->ops.rdma_ev(srv->priv, id, READ, data, data_len,
 			   data + data_len, usr_len);
 
 	if (unlikely(ret)) {
@@ -1051,7 +1051,7 @@ static void process_write(struct rtrs_srv_con *con,
 	usr_len = le16_to_cpu(req->usr_len);
 	data_len = off - usr_len;
 	data = page_address(srv->chunks[buf_id]);
-	ret = ctx->ops.rdma_ev(srv, srv->priv, id, WRITE, data, data_len,
+	ret = ctx->ops.rdma_ev(srv->priv, id, WRITE, data, data_len,
 			   data + data_len, usr_len);
 	if (unlikely(ret)) {
 		rtrs_err_rl(s,

drivers/infiniband/ulp/rtrs/rtrs.h

@@ -139,7 +139,6 @@ struct rtrs_srv_ops {
 	 *			message for the data transfer will be sent to
 	 *			the client.
 
-	 *	@sess:		Session
 	 *	@priv:		Private data set by rtrs_srv_set_sess_priv()
 	 *	@id:		internal RTRS operation id
 	 *	@dir:		READ/WRITE
@@ -153,7 +152,7 @@ struct rtrs_srv_ops {
 	 *	@usr:		The extra user message sent by the client (%vec)
 	 *	@usrlen:	Size of the user message
 	 */
-	int (*rdma_ev)(struct rtrs_srv *sess, void *priv,
+	int (*rdma_ev)(void *priv,
 		       struct rtrs_srv_op *id, int dir,
 		       void *data, size_t datalen, const void *usr,
 		       size_t usrlen);