From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6830EC433FE for ; Thu, 9 Sep 2021 11:55:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 537A361BFE for ; Thu, 9 Sep 2021 11:55:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244047AbhIIL4W (ORCPT ); Thu, 9 Sep 2021 07:56:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:55360 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242995AbhIILxD (ORCPT ); Thu, 9 Sep 2021 07:53:03 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E496361362; Thu, 9 Sep 2021 11:44:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1631187871; bh=6oZCUpyxr2EJT7JalbSNKJm7FX02wo6SvZ2McfbqLOg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YX6SpFo425SHwRrvqTZLrGSgY+Fl80Oa4MHkxKSbzK8T7j+2a4W4pM1xaNGozamLc dGkNy5KX6Dg7PRab+B/ALgGBj4a2kIbDicPW9//LD2MTipE6j4OhElkj3ENCuMtV2q KStzxjUJqi4927wklMsVLTsRCvsHEqmxtZ4JI3P/GYhFxbCO0gCGFZm7VDionLik/8 BnQg3UyMIAPkJ3f0YUExb+BTsn/FBUe02GZem/0ZCIIGYJrXsVM/hfSAA2pENyKcyW QPSSZRRW9Qhc37oJHnZtJcJBRpUYATlWz/3Gv9fX7u4yOe7RaszckHDe8NxJVsxpG/ 4RRYnyPvDMKSg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sagi Grimberg , Hannes Reinecke , Daniel Wagner , Christoph Hellwig , Sasha Levin , linux-nvme@lists.infradead.org Subject: [PATCH AUTOSEL 5.14 157/252] nvme-tcp: don't check blk_mq_tag_to_rq when receiving pdu data Date: Thu, 9 Sep 2021 07:39:31 -0400 Message-Id: <20210909114106.141462-157-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210909114106.141462-1-sashal@kernel.org> References: <20210909114106.141462-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sagi Grimberg [ 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 Signed-off-by: Sagi Grimberg Reviewed-by: Daniel Wagner Signed-off-by: Christoph Hellwig Signed-off-by: Sasha Levin --- drivers/nvme/host/tcp.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index 8cb15ee5b249..d649b446da66 100644 --- 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; -- 2.30.2