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[2620:137:e000::1:20]) by mx.google.com with ESMTP id l13-20020a170903120d00b0016bea2a8b16si5878213plh.364.2022.10.30.04.45.42; Sun, 30 Oct 2022 04:45:55 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=kZBettFQ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229925AbiJ3LSI (ORCPT + 99 others); Sun, 30 Oct 2022 07:18:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229608AbiJ3LSH (ORCPT ); Sun, 30 Oct 2022 07:18:07 -0400 Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com [IPv6:2607:f8b0:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5EE8019B for ; Sun, 30 Oct 2022 04:18:06 -0700 (PDT) Received: by mail-pf1-x42a.google.com with SMTP id i3so8402668pfc.11 for ; Sun, 30 Oct 2022 04:18:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=nGegimzJJD/T3a8obFFAOriR2r5i2MS27jrBICwZ++w=; b=kZBettFQu2uvNxkaRYEKc5rqe8avhio5gp0JwXdQRmF48TodXPsHT8ZgBF8rY2WG1S Bu0A3YhBZrv7h3FDOcIT4RlbZNPbLLanBCXDcCZF20F1gtuA3qdW3EDOxptZwi0EPHpp XjW7QTTml9KunHiMBBrfzXakoxjaPP8ivyTbaTkzcVmpyW3k6ojXzF8dGp0e2ALtWBio NDyyAYIzbk9CgfPwMvC0G7XlXvZOFXH70f0HvPH0lBs0b1IUGri1ljciNHOUPjS5V7V1 Rf1YnsnWBqOTfgEvDO0YQzSSFjIqeErofFGLjxHXPdDxBlDt3B5vqvLmoBMXxZ6/crdn BhwA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=nGegimzJJD/T3a8obFFAOriR2r5i2MS27jrBICwZ++w=; b=A8PeG8BENsyeDQ+tPDctGcn4oxTo88U8ZEw9gs+xrRqcPXMCKBqQgcP/t2pDIyBFvP 7XC1D6NW5k7TiFI1AnjrOkdr2sK2pVx2pjEzAMLDSakc+8sA+jeHMPf9517CFmgvm3+6 AaRHXJZL86vM2y28Bpr6PCk3UwumJN5uWLTAjy7KjsvV2AAvi+26N7dynXC5zUdOpHjO XEFmo29jzn03DHGncBE9ru25f0n4+/8W8CSmSF/DWbCnErPL8WoTggKC928/flYIgzHu mULkwulA0S5NwPdMo9xTBCYEo6R6lK0vImZdG/90U6ie1ZjZlCyUkbYDx/3I7hy/QG9K VnEw== X-Gm-Message-State: ACrzQf1e/gxt2Gxfk8VgLAy7GYHWlEGcMJRNo425Nzh6ftISS7Pg0EMh 5+ovMAATTtwNmJFUyodwQF0= X-Received: by 2002:a05:6a00:acc:b0:530:e79e:fc27 with SMTP id c12-20020a056a000acc00b00530e79efc27mr8754669pfl.61.1667128685800; Sun, 30 Oct 2022 04:18:05 -0700 (PDT) Received: from localhost.localdomain ([139.177.225.234]) by smtp.gmail.com with ESMTPSA id n11-20020a170903404b00b00176e6f553efsm2559531pla.84.2022.10.30.04.18.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Oct 2022 04:18:05 -0700 (PDT) From: wuchi To: peterz@infradead.org, mingo@redhat.com, will@kernel.org, longman@redhat.com, boqun.feng@gmail.com Cc: linux-kernel@vger.kernel.org Subject: [PATCH] locking/lockdep: Remove unused variable in __lockdep_count*() Date: Sun, 30 Oct 2022 19:17:59 +0800 Message-Id: <20221030111759.95092-1-wuchi.zero@gmail.com> X-Mailer: git-send-email 2.32.1 (Apple Git-133) MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1748112879575027727?= X-GMAIL-MSGID: =?utf-8?q?1748112879575027727?= The target_entry variable will never be referenced because the function noop_count() always returns false in __bfs(). So just remove that. Signed-off-by: wuchi --- kernel/locking/lockdep.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index e3375bc40dad..04d2ce5d0215 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -2075,9 +2075,8 @@ static bool noop_count(struct lock_list *entry, void *data) static unsigned long __lockdep_count_forward_deps(struct lock_list *this) { unsigned long count = 0; - struct lock_list *target_entry; - __bfs_forwards(this, (void *)&count, noop_count, NULL, &target_entry); + __bfs_forwards(this, (void *)&count, noop_count, NULL, NULL); return count; } @@ -2100,9 +2099,8 @@ unsigned long lockdep_count_forward_deps(struct lock_class *class) static unsigned long __lockdep_count_backward_deps(struct lock_list *this) { unsigned long count = 0; - struct lock_list *target_entry; - __bfs_backwards(this, (void *)&count, noop_count, NULL, &target_entry); + __bfs_backwards(this, (void *)&count, noop_count, NULL, NULL); return count; }