From patchwork Tue Jan 11 05:47:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zou Mingzhe X-Patchwork-Id: 12709514 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 732DFC433F5 for ; Tue, 11 Jan 2022 05:54:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232008AbiAKFyx (ORCPT ); Tue, 11 Jan 2022 00:54:53 -0500 Received: from mail-m2836.qiye.163.com ([103.74.28.36]:23714 "EHLO mail-m2836.qiye.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230248AbiAKFyx (ORCPT ); Tue, 11 Jan 2022 00:54:53 -0500 X-Greylist: delayed 541 seconds by postgrey-1.27 at vger.kernel.org; Tue, 11 Jan 2022 00:54:52 EST Received: from localhost.localdomain (unknown [218.94.118.90]) by mail-m2836.qiye.163.com (Hmail) with ESMTPA id A0537C02C0; Tue, 11 Jan 2022 13:48:04 +0800 (CST) From: mingzhe.zou@easystack.cn To: martin.petersen@oracle.com Cc: target-devel@vger.kernel.org, linux-scsi@vger.kernel.org, ZouMingzhe Subject: [PATCH] target: make sure the np under each tpg is unique Date: Tue, 11 Jan 2022 13:47:42 +0800 Message-Id: <20220111054742.19582-1-mingzhe.zou@easystack.cn> X-Mailer: git-send-email 2.17.1 X-HM-Spam-Status: e1kfGhgUHx5ZQUtXWQgPGg8OCBgUHx5ZQUlOS1dZCBgUCR5ZQVlLVUtZV1 kWDxoPAgseWUFZKDYvK1lXWShZQUlCN1dZLVlBSVdZDwkaFQgSH1lBWRlKS09WTkMYSExPSEJPTk 5IVRkRExYaEhckFA4PWVdZFhoPEhUdFFlBWVVLWQY+ X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6OBg6Vgw4QzIwLz85SEstKygq PgwaCVZVSlVKTU9KQ0NLS0NOSk1IVTMWGhIXVRYSFRwBEx5VARQOOx4aCAIIDxoYEFUYFUVZV1kS C1lBWUlKQ1VCT1VKSkNVQktZV1kIAVlBSk1OTTcG X-HM-Tid: 0a7e47ade1b1841ekuqwa0537c02c0 Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org From: ZouMingzhe iscsit_tpg_check_network_portal() has two-layer for loop, and should return true When a match is found. Then, the tpg loop will still continue after break the tpg_np loop. If this tpg_np is not the last, the match value will be changed. This patch break all loops after finding a match, and make sure the np under each tpg is unique. Signed-off-by: ZouMingzhe --- drivers/target/iscsi/iscsi_target_tpg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c index 8075f60fd02c..2d5cf1714ae0 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.c +++ b/drivers/target/iscsi/iscsi_target_tpg.c @@ -443,6 +443,9 @@ static bool iscsit_tpg_check_network_portal( break; } spin_unlock(&tpg->tpg_np_lock); + + if (match) + break; } spin_unlock(&tiqn->tiqn_tpg_lock);