nvme-tcp: don't check blk_mq_tag_to_rq when receiving pdu data
[ Upstream commit 3b01a9d0caa8276d9ce314e09610f7fb70f49a00 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -642,17 +642,9 @@ static int nvme_tcp_recv_data(struct nvme_tcp_queue *queue, struct sk_buff *skb,
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unsigned int *offset, size_t *len)
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unsigned int *offset, size_t *len)
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{
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{
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struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu;
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struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu;
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struct nvme_tcp_request *req;
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struct request *rq =
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struct request *rq;
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blk_mq_tag_to_rq(nvme_tcp_tagset(queue), pdu->command_id);
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struct nvme_tcp_request *req = blk_mq_rq_to_pdu(rq);
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rq = blk_mq_tag_to_rq(nvme_tcp_tagset(queue), pdu->command_id);
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if (!rq) {
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dev_err(queue->ctrl->ctrl.device,
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"queue %d tag %#x not found\n",
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nvme_tcp_queue_id(queue), pdu->command_id);
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return -ENOENT;
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}
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req = blk_mq_rq_to_pdu(rq);
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while (true) {
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while (true) {
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int recv_len, ret;
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int recv_len, ret;
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