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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 2D414C433DF for ; Tue, 23 Jun 2020 00:22:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 08AD0207BC for ; Tue, 23 Jun 2020 00:22:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592871774; bh=tB9HlMkw5XLtFIN045BqGF8hHu7w98oiNEdIGZt8lnU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wIM488phjE35ZejQDDfCd7FBxY/2vxTChp/2PJCmxNVyD+YGGiph83lPJ4bQnAaz7 UoJ0CicFn9grah+LJuHX1/j1k/qcxbkkPzXLwO1lS8d+jBfNUWCgeB89njhAT4OxD2 ZCqnyAS0WHFqsjQISwutYzNrrsg+nn7YIHE6xwTQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731750AbgFWAWw (ORCPT ); Mon, 22 Jun 2020 20:22:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:48174 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731551AbgFWAVw (ORCPT ); Mon, 22 Jun 2020 20:21:52 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 446D020C56; Tue, 23 Jun 2020 00:21:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592871712; bh=tB9HlMkw5XLtFIN045BqGF8hHu7w98oiNEdIGZt8lnU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UReNzSQhTH9EAYT5o6V25xHX+tJIxsjVKXbwzFxb7Rrq6GSu21qRj88xnAjKyvHkD CgeA4kAcp+FVsQnR6zziVSPOKAYKOaWmQ88TLkGdjfCUi/HTk5zlGPTDXIES385Prd xqj46Mzk5x3PFPkA9Xj1fjjK/MoOkzh+S5c5fGhE= From: paulmck@kernel.org To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 15/26] rcu: Remove initialized but unused rnp from check_slow_task() Date: Mon, 22 Jun 2020 17:21:36 -0700 Message-Id: <20200623002147.25750-15-paulmck@kernel.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20200623002128.GA25456@paulmck-ThinkPad-P72> References: <20200623002128.GA25456@paulmck-ThinkPad-P72> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Paul E. McKenney" This commit removes the variable rnp from check_slow_task(), which is defined, assigned to, but not otherwise used. Reported-by: kbuild test robot Signed-off-by: Paul E. McKenney --- kernel/rcu/tree_stall.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h index 2768ce6..d203f82 100644 --- a/kernel/rcu/tree_stall.h +++ b/kernel/rcu/tree_stall.h @@ -237,14 +237,12 @@ struct rcu_stall_chk_rdr { */ static bool check_slow_task(struct task_struct *t, void *arg) { - struct rcu_node *rnp; struct rcu_stall_chk_rdr *rscrp = arg; if (task_curr(t)) return false; // It is running, so decline to inspect it. rscrp->nesting = t->rcu_read_lock_nesting; rscrp->rs = t->rcu_read_unlock_special; - rnp = t->rcu_blocked_node; rscrp->on_blkd_list = !list_empty(&t->rcu_node_entry); return true; } -- 2.9.5