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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 EC2EFC33CB1 for ; Wed, 15 Jan 2020 09:10:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BD83324655 for ; Wed, 15 Jan 2020 09:10:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=newoldbits-com.20150623.gappssmtp.com header.i=@newoldbits-com.20150623.gappssmtp.com header.b="dkPCnJaj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729026AbgAOJKY (ORCPT ); Wed, 15 Jan 2020 04:10:24 -0500 Received: from mail-lj1-f196.google.com ([209.85.208.196]:46077 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728925AbgAOJKY (ORCPT ); Wed, 15 Jan 2020 04:10:24 -0500 Received: by mail-lj1-f196.google.com with SMTP id j26so17656214ljc.12 for ; Wed, 15 Jan 2020 01:10:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=newoldbits-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ZUooeDiuykCrSEixoglrFzv/NkRqBFJjLlMXld2oNvc=; b=dkPCnJajgdZv82TJTfRwIjQT4BzJ0XAJ6EjHOTKTAfRmqA7t7Nm82NV6ZvLY/LtOJo MzdbM9Wou0bHJP5bPaCJNwqQ2ZSanKZJG9Q2bQKYSTVYNvVNEcS9jXYRIBiJ959OcNqR kc7vIokUwj1LKKCJ30x2X3DqpwnR/FYoj+/2W/YsR85Va2ptlTxsBI6a31zsYDOG0DTb Ma+umCg1nqQQ3FkG5pi9XEkI3TLwFfb5/6VDIOJcXQq+KXh4vsPL8AazgKx7wf2+7Vuy 6Rw9QghTREYiaSILdXpXmfnbzkf1etqMbAJNSS3DKNHvXuc8w2i4OiyJg20HyP8ZtVs0 4D7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=ZUooeDiuykCrSEixoglrFzv/NkRqBFJjLlMXld2oNvc=; b=dINJONZLWG6nJdPJEBGO+OK7tG2nda+fLYXxTVbFIj5Vh/r14k5ZGEOa9l3aJ5tVhS 1h1kVR+TP1pTU17ATreCdKkAiRtoHcecscHUK7ymQ/ZJh5ERzcM5MGW9SH9W6WTAe3n9 F3t3OAwrY2g9DjJdZbam6Z9TNVDVHxGNxoJ3pgNP7Seqv7PMtaguwRT0gel5cMcmnKiz xy1ZhcbKCmAsYFLkMWLWbdrsUFRqs9X4hsfga3cpyd7A0nIQvbTd/MZ2AARQ4PkYH+Vw SmsftkKm2uQUqXOUDg9wehST6Lomddr7DAzFgrMthLbvaHPv8x6NKsgFyNBQvku3z0Xa +mDw== X-Gm-Message-State: APjAAAWFrxQz/ci7D1uCk7Em/X4bn3Lzs30qoCNwmoBjJ2/dmkGgPXkE KOw++Jy3L1lLV9DpmRj2xNR7njujDWWTFty9YIi57TZlCnE= X-Google-Smtp-Source: APXvYqwmx/kU1fofcAxvjyTJt+wWuHPF02t2nR4PiACn0mxCpKhZ7SIHy9YPRLm7JR5V3fes434obrv1zFT0VcCMZeE= X-Received: by 2002:a2e:9d89:: with SMTP id c9mr1140551ljj.129.1579079421879; Wed, 15 Jan 2020 01:10:21 -0800 (PST) MIME-Version: 1.0 References: <20200115132325.3ac3ca0f@canb.auug.org.au> In-Reply-To: <20200115132325.3ac3ca0f@canb.auug.org.au> From: Jean Pihet Date: Wed, 15 Jan 2020 10:10:09 +0100 Message-ID: Subject: Re: linux-next: build warning after merge of the spi tree To: Stephen Rothwell Cc: Mark Brown , Linux Next Mailing List , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Sender: linux-next-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org Hi Stephen, I did not have this warning, it may be a combination of compiler version and build flags. Do you need a fixup patch for it? Thanks, Jean On Wed, Jan 15, 2020 at 3:23 AM Stephen Rothwell wrote: > > Hi all, > > After merging the spi tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: > > drivers/spi/spi-ti-qspi.c: In function 'ti_qspi_start_transfer_one': > drivers/spi/spi-ti-qspi.c:392:8: warning: 'rx_wlen' may be used uninitialized in this function [-Wmaybe-uninitialized] > 392 | if (rx_wlen >= 32) > | ^ > drivers/spi/spi-ti-qspi.c:318:12: note: 'rx_wlen' was declared here > 318 | u8 rxlen, rx_wlen; > | ^~~~~~~ > > Introduced by commit > > e7cc5cfbea4c ("spi: spi-ti-qspi: optimize byte-transfers") > > Looks like it may be a false positive. > > -- > Cheers, > Stephen Rothwell