From patchwork Mon Jul 12 06:05:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 475841 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,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 C26C8C07E99 for ; Mon, 12 Jul 2021 07:04:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A6D8F613E3 for ; Mon, 12 Jul 2021 07:04:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242821AbhGLHHG (ORCPT ); Mon, 12 Jul 2021 03:07:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:41176 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241904AbhGLHGI (ORCPT ); Mon, 12 Jul 2021 03:06:08 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8673061260; Mon, 12 Jul 2021 07:03:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626073389; bh=CreSF3836YFQf5SepfjQHNe1Dhiejoa7yZUMT0fJ9dA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qHReHg5RbEhYf8o3LxeewO7yt0zX89VIDG8e4QXLhjqjuynKu4e5GiwaXpBe5WB+Z 3LXub1i7PJw/hH/tmFmYtffLEtsTMv4AyEcrvHkALHNA+TXXUvJsoHLz9fmupYK74p cHcvlZ1AyVXGBkqhPDb/+Lo1L7UksBi4duLQrQRo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hannes Reinecke , James Smart , Christoph Hellwig , Sasha Levin Subject: [PATCH 5.12 226/700] nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst() Date: Mon, 12 Jul 2021 08:05:09 +0200 Message-Id: <20210712060958.786344246@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060924.797321836@linuxfoundation.org> References: <20210712060924.797321836@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Hannes Reinecke [ Upstream commit 2a4a910aa4f0acc428dc8d10227c42e14ed21d10 ] When parsing a request in nvmet_fc_handle_fcp_rqst() we should not check for invalid target ports; if we do the command is aborted from the fcp layer, causing the host to assume a transport error. Rather we should still forward this request to the nvmet layer, which will then correctly fail the command with an appropriate error status. Signed-off-by: Hannes Reinecke Reviewed-by: James Smart Signed-off-by: Christoph Hellwig Signed-off-by: Sasha Levin --- drivers/nvme/target/fc.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c index d375745fc4ed..b81db5270018 100644 --- a/drivers/nvme/target/fc.c +++ b/drivers/nvme/target/fc.c @@ -2494,13 +2494,6 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport, u32 xfrlen = be32_to_cpu(cmdiu->data_len); int ret; - /* - * if there is no nvmet mapping to the targetport there - * shouldn't be requests. just terminate them. - */ - if (!tgtport->pe) - goto transport_error; - /* * Fused commands are currently not supported in the linux * implementation. @@ -2528,7 +2521,8 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport, fod->req.cmd = &fod->cmdiubuf.sqe; fod->req.cqe = &fod->rspiubuf.cqe; - fod->req.port = tgtport->pe->port; + if (tgtport->pe) + fod->req.port = tgtport->pe->port; /* clear any response payload */ memset(&fod->rspiubuf, 0, sizeof(fod->rspiubuf));