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=-19.7 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 9428FC433B4 for ; Mon, 3 May 2021 17:07:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6373C610A5 for ; Mon, 3 May 2021 17:07:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236943AbhECRHl (ORCPT ); Mon, 3 May 2021 13:07:41 -0400 Received: from mail.kernel.org ([198.145.29.99]:43040 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233524AbhECQ5O (ORCPT ); Mon, 3 May 2021 12:57:14 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 88CDE61574; Mon, 3 May 2021 16:43:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620060232; bh=NnusT3g1kupXty5Ig/F4DpzN53olHto/uUZKxUFA9OU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Tocfsla5GT95ESjQXHebL5IJ6T5/NBcml0jogii0Wu1D3l6Pdm9J1iJxLAxKxgBt5 YrXTWKdFlxzQHCdrOD3TKK5nAG6/oa5HzTsOeIPvCVUoxK3K8Xq3pQA/TB2GbYu5EP aRZx3GKMQinnq9v7uDVpG2z2BnmccCfr2xo6VYP/0T1DC47IUtwan9o4U7AZ3Xvbrr lLEQVWn81i/qqKbE51Zn+rCdgrzo+k58n9iNsOYQojFxsQBm7CyhHPjsBq4SeATyvw 0tXkiTOdD/1B8G9cxihMGbHasznyeeoksUyOhmc53T41X+RJpG95t+O7tssT2tEVg7 t/NYKbrtsJeig== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: James Smart , Justin Tee , "Martin K . Petersen" , Sasha Levin , linux-scsi@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 15/16] scsi: lpfc: Fix crash when a REG_RPI mailbox fails triggering a LOGO response Date: Mon, 3 May 2021 12:43:28 -0400 Message-Id: <20210503164329.2854739-15-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210503164329.2854739-1-sashal@kernel.org> References: <20210503164329.2854739-1-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: James Smart [ Upstream commit fffd18ec6579c2d9c72b212169259062fe747888 ] Fix a crash caused by a double put on the node when the driver completed an ACC for an unsolicted abort on the same node. The second put was executed by lpfc_nlp_not_used() and is wrong because the completion routine executes the nlp_put when the iocbq was released. Additionally, the driver is issuing a LOGO then immediately calls lpfc_nlp_set_state to put the node into NPR. This call does nothing. Remove the lpfc_nlp_not_used call and additional set_state in the completion routine. Remove the lpfc_nlp_set_state post issue_logo. Isn't necessary. Link: https://lore.kernel.org/r/20210412013127.2387-3-jsmart2021@gmail.com Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/lpfc/lpfc_nportdisc.c | 2 -- drivers/scsi/lpfc/lpfc_sli.c | 1 - 2 files changed, 3 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 6aa0698925da..1a44102b43c3 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -1604,8 +1604,6 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; lpfc_issue_els_logo(vport, ndlp, 0); - ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; - lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); return ndlp->nlp_state; } diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 97c0d79a2601..9055a8fce3d4 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -15049,7 +15049,6 @@ lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba, if (cmd_iocbq) { ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1; lpfc_nlp_put(ndlp); - lpfc_nlp_not_used(ndlp); lpfc_sli_release_iocbq(phba, cmd_iocbq); } -- 2.30.2