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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id u13-20020a170903124d00b00153b2d16541si12589641plh.329.2022.05.09.01.21.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 May 2022 01:21:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=RdLiYrz1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 372E21CEED2; Mon, 9 May 2022 01:09:22 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1386262AbiEEWWd (ORCPT + 99 others); Thu, 5 May 2022 18:22:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41304 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234582AbiEEWWb (ORCPT ); Thu, 5 May 2022 18:22:31 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D16B54F92; Thu, 5 May 2022 15:18:50 -0700 (PDT) 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=PQpJvze83NSWDlr7OIcAOygWYw70l9ciiAR1MAheopE=; b=RdLiYrz1lcimvJ5EFlm2OpYW07 EBuVe7UI0ihIr0jNzNnAO/qKnT2X2XlxhDe1tll2ffGg+MIGaGlzfcJUhfERzY35hCUMKJqcZeBzw o0M+1uYWgIZciVhpqKBXo6Bhz1dExuY2z9u6Uhn7sxhmjuDN5LFPKRZc/2DGUDbxxciyhnXd1cydP hPrW8NcDwOoXsVTKpZKlUouBbvWVOioZla+nT2quMlttCur4XM4d9OzBSd3T7E5NYW0X0iyJjvVbo Sq0dIQorel0ndZs2+VLr8VJA8eSeFAQW31MwZ9soKTiJ3GcqgFFDHiNZEGpV0zskqqa/tSM/3Q0eo bFXrWZ4w==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nmjo4-000NRV-NJ; Thu, 05 May 2022 22:18:44 +0000 Date: Thu, 5 May 2022 23:18:44 +0100 From: Matthew Wilcox To: Stephen Rothwell Cc: Andrew Morton , Linux Kernel Mailing List , Linux Next Mailing List Subject: Re: linux-next: build warning after merge of the mm tree Message-ID: References: <20220506073537.6da48a27@canb.auug.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220506073537.6da48a27@canb.auug.org.au> X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no 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 On Fri, May 06, 2022 at 07:35:37AM +1000, Stephen Rothwell wrote: > Hi all, > > After merging the mm tree, today's linux-next build (i386 allmodconfig > clang14) produced this warning: > > mm/shmem.c:1704:7: error: variable 'folio' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized] > > Introduced by commit > > 2b58b3f33ba2 ("mm/shmem: convert shmem_swapin_page() to shmem_swapin_folio()") > > 'folio' is used in the error path. I sent a repacement series here: https://lore.kernel.org/linux-mm/20220504182857.4013401-1-willy@infradead.org/T/#t I presume Andrew has not had a chance to integrate it yet. LSF/MM was exhausting!