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=-15.7 required=3.0 tests=BAYES_00,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 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 9C61EC49EA6 for ; Thu, 24 Jun 2021 09:56:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 84B0D613F2 for ; Thu, 24 Jun 2021 09:56:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232217AbhFXJ6W (ORCPT ); Thu, 24 Jun 2021 05:58:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232172AbhFXJ6U (ORCPT ); Thu, 24 Jun 2021 05:58:20 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06AA2C06175F for ; Thu, 24 Jun 2021 02:56:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-ID:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=IRaAoiN/huxEDQ7zmGDmc4GHQ1MNCV6CE6whExS9E0Y=; b=MbCv+n4bdzqAutowikhRzfU3L6 Ccy/eqQeGRSDGf77ofH/GCBQqqbith2zmSbyvWFNz2SCAsUwXBnKwzLhS4sE/Qup4zdU7WebYUEw2 3RB0nA44DHdPzDlvvZlM5asr5IoV7vOi+DpQfPPV0E4uRGiLw/JjEd2Amu7ZlCiBRRcjfJ+n1BQW3 rKrtXPX3pVQcv+Lm/mEHNa7+2YdgDLINP4TEsi8kbCCZdnRK0Kvj9m4pFL3hY5fGB7HWCxIqSuG0i HiaE/vSvsEdo+CRcwACF2guPSsEg3rsL/iMu2srUXG3DFCd9PjmIyvG5wyPPySzyhUC8V6ulHjhgZ 3GaMHrIA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1lwM43-00GQOd-9A; Thu, 24 Jun 2021 09:54:30 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 98DBA3005B6; Thu, 24 Jun 2021 11:54:24 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id DC69F2BC05F38; Thu, 24 Jun 2021 11:54:23 +0200 (CEST) Message-ID: <20210624095148.311980536@infradead.org> User-Agent: quilt/0.66 Date: Thu, 24 Jun 2021 11:41:10 +0200 From: Peter Zijlstra To: jpoimboe@redhat.com, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, joro@8bytes.org, boris.ostrovsky@oracle.com, jgross@suse.com, x86@kernel.org, mbenes@suse.com, rostedt@goodmis.org, dvyukov@google.com, elver@google.com Subject: [PATCH v2 11/24] locking/lockdep: Avoid RCU-induced noinstr fail References: <20210624094059.886075998@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org vmlinux.o: warning: objtool: look_up_lock_class()+0xc7: call to rcu_read_lock_any_held() leaves .noinstr.text section Signed-off-by: Peter Zijlstra (Intel) --- kernel/locking/lockdep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -888,7 +888,7 @@ look_up_lock_class(const struct lockdep_ if (DEBUG_LOCKS_WARN_ON(!irqs_disabled())) return NULL; - hlist_for_each_entry_rcu(class, hash_head, hash_entry) { + hlist_for_each_entry_rcu_notrace(class, hash_head, hash_entry) { if (class->key == key) { /* * Huh! same key, different name? Did someone trample