nvme-tcp: don't check blk_mq_tag_to_rq when receiving pdu data

We already validate it when receiving the c2hdata pdu header
and this is not changing so this is a redundant check.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 8cb15ee..d649b44 100644 (file)
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -702,17 +702,9 @@ static int nvme_tcp_recv_data(struct nvme_tcp_queue *queue, struct sk_buff *skb,
                              unsigned int *offset, size_t *len)
 {
        struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu;
-       struct nvme_tcp_request *req;
-       struct request *rq;
-
-       rq = blk_mq_tag_to_rq(nvme_tcp_tagset(queue), pdu->command_id);
-       if (!rq) {
-               dev_err(queue->ctrl->ctrl.device,
-                       "queue %d tag %#x not found\n",
-                       nvme_tcp_queue_id(queue), pdu->command_id);
-               return -ENOENT;
-       }
-       req = blk_mq_rq_to_pdu(rq);
+       struct request *rq =
+               blk_mq_tag_to_rq(nvme_tcp_tagset(queue), pdu->command_id);
+       struct nvme_tcp_request *req = blk_mq_rq_to_pdu(rq);
 
        while (true) {
                int recv_len, ret;