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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E421AC43334 for ; Mon, 4 Jul 2022 11:46:19 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Lc3t23JnWz3fQL for ; Mon, 4 Jul 2022 21:46:18 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=casper.20170209 header.b=mSbUiv1/; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=infradead.org (client-ip=2001:8b0:10b:1236::1; helo=casper.infradead.org; envelope-from=peterz@infradead.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=casper.20170209 header.b=mSbUiv1/; dkim-atps=neutral Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Lc3sM6F0Gz304x for ; Mon, 4 Jul 2022 21:45:43 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=4HrRuXuVA+Twe3QAd56nGmntiiPmbvBTaKZ1l1jeChc=; b=mSbUiv1/DRUA3lQIT0bPc7zWbu hYIsn/1ueg4pM4xgnObmk/HNo4XDuGhlHlQoQ3FijYv1D9Wz9sF4JRv8sECoVcNbUoBrI2j5nNB16 Nhx3So2SdSRT4PWxWEpL2hOZzyZNk22odC2seMX4jYd+jvOgH/c0vjC3LF/dt3DR3Xv/BfU5vsdqn TMjFNJjQueSZWfe9JcXAOWc4raiUkoEAM8TaUSzi204T5B/T7Et2DyFHWWuTHxZMZcg2Hs6xGrbWI BQDraL1c4hIdfIa2nXqgvznU58iRnhuL+MNmPW8cqFSOa/haIukRZJtioNqImk/hZRwFqOBq+njBw 4VnrMlyg==; Received: from dhcp-077-249-017-003.chello.nl ([77.249.17.3] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8KW5-00HE6L-Ke; Mon, 04 Jul 2022 11:45:25 +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 (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id D81D8300362; Mon, 4 Jul 2022 13:45:23 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id BE0B42028F029; Mon, 4 Jul 2022 13:45:23 +0200 (CEST) Date: Mon, 4 Jul 2022 13:45:23 +0200 From: Peter Zijlstra To: Christophe Leroy Subject: Re: [RFC PATCH v3 11/12] powerpc: Remove unreachable() from WARN_ON() Message-ID: References: <20220624183238.388144-1-sv@linux.ibm.com> <20220624183238.388144-12-sv@linux.ibm.com> <70b6d08d-aced-7f4e-b958-a3c7ae1a9319@csgroup.eu> <92eae2ef-f9b6-019a-5a8e-728cdd9bbbc0@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marc Zyngier , "aik@ozlabs.ru" , Sathvika Vasireddy , "linux-kernel@vger.kernel.org" , "rostedt@goodmis.org" , Chen Zhongjin , "mingo@redhat.com" , Sathvika Vasireddy , "jpoimboe@redhat.com" , "paulus@samba.org" , "naveen.n.rao@linux.vnet.ibm.com" , "mbenes@suse.cz" , "linuxppc-dev@lists.ozlabs.org" , Linux ARM Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, Jun 29, 2022 at 06:30:23PM +0000, Christophe Leroy wrote: > The problem is that that function has size 0: > > 00000000000003d0 l F .text 0000000000000000 > qdisc_root_sleeping_lock.part.0 I'm somewhat confused; how is an empty STT_FUNC a valid construct on Power?