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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 F37A1FA372A for ; Wed, 16 Oct 2019 14:49:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C67A42168B for ; Wed, 16 Oct 2019 14:49:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cV/mvzRf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405758AbfJPOtH (ORCPT ); Wed, 16 Oct 2019 10:49:07 -0400 Received: from mail-oi1-f194.google.com ([209.85.167.194]:37336 "EHLO mail-oi1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731322AbfJPOtH (ORCPT ); Wed, 16 Oct 2019 10:49:07 -0400 Received: by mail-oi1-f194.google.com with SMTP id i16so20289556oie.4 for ; Wed, 16 Oct 2019 07:49:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=w1bxrgVA37G+vlASPmtvWKFuCtmhkeFNcRz6WRlmRjU=; b=cV/mvzRfHOQQSRtHHeQpRDH7Gm9zRPlfcWS9R5ZhcSzGTi98v3A9AAlhUsyazP7Laz 5lmdp7D4vUQEi557gGii1CzHcNk+MgGKFrm/cbfY1drUb2PsXsHH1vYEBIfhUBte9h8R +9K66Slzy/v6RP1V8mAbkgQ3peCNr+vnwZ52Z6CdCaYh1cL+7DtTrGfiWg0yNmOAH2fe 3ivwLseXQjkqFqEd99cHdWz/ycBGljWtsgl3pL+TsNn8LYHynVV2lxeDQp+j1qJOqsy8 QgH3QGjL2dSW+TWsc0lbEwc34KDF8Pm5togWdw8MIEuc4PLQkfJQE1Cc3aNOtIo4JYVx 4UNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=w1bxrgVA37G+vlASPmtvWKFuCtmhkeFNcRz6WRlmRjU=; b=G0sOZDQmwxVDQ4vVcx1+xNzX3xFahTQ/ciYTmOG5+C1w6Ke80VW39LZiGLWzdCuJU/ XJdYKKsMBu3IiQ+r+0f1AVpFbQbptYkssg+AM0AuMbE4jYtj0HcOevn5Dv2+x0rJZQb3 IDZKAs5IfwuTyL51WC6CQ2aYvLPs690TYbLQj58AQSuZ6A87gx70hDxdWLrMpKMrUn7f fBui8lkn74aahpIxHwb3HaSrHn4z0Wxw1p0Kx4Z5sEiW6/fjVWKn7SP2/pmhxuXADmYJ pCUBhvhCjXzxRDuOcThVF0JnAjoxKVganEom/IMyqxwPIWrDNhL9EqPZ4v9jKlItOnI6 d2GQ== X-Gm-Message-State: APjAAAWggiUWGyvArOUu/8UN+vXhm+mDTUdo29Sgp+7qgM9H3/JWUmI/ 52w9AeLX9u1ARrBUHdQyau4= X-Google-Smtp-Source: APXvYqyN5zisgMnkVtiqZYBEqq7Y3oEfz/wNwyVWCQzqSRIXm/Hfh5W+j6xi9TCcQ44CZ63kx7p2kg== X-Received: by 2002:aca:dd07:: with SMTP id u7mr4009174oig.106.1571237346163; Wed, 16 Oct 2019 07:49:06 -0700 (PDT) Received: from localhost.localdomain ([2604:1380:4111:8b00::1]) by smtp.gmail.com with ESMTPSA id k3sm7281574otn.38.2019.10.16.07.49.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Oct 2019 07:49:05 -0700 (PDT) From: Nathan Chancellor To: Catalin Marinas , Will Deacon Cc: Nicolas Saenz Julienne , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Nathan Chancellor Subject: [PATCH -next v3] arm64: mm: Fix unused variable warning in zone_sizes_init Date: Wed, 16 Oct 2019 07:47:14 -0700 Message-Id: <20191016144713.23792-1-natechancellor@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191016031107.30045-1-natechancellor@gmail.com> References: <20191016031107.30045-1-natechancellor@gmail.com> MIME-Version: 1.0 X-Patchwork-Bot: notify Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When building arm64 allnoconfig, CONFIG_ZONE_DMA and CONFIG_ZONE_DMA32 get disabled so there is a warning about max_dma being unused. ../arch/arm64/mm/init.c:215:16: warning: unused variable 'max_dma' [-Wunused-variable] unsigned long max_dma = min; ^ 1 warning generated. Add __maybe_unused to make this clear to the compiler. Fixes: 1a8e1cef7603 ("arm64: use both ZONE_DMA and ZONE_DMA32") Signed-off-by: Nathan Chancellor --- v1 -> v2: * Fix check for CONFIG_ZONE_DMA32 as pointed out by Will. v2 -> v3: * Use __maybe_unused attribute instead of preprocessor ifdefs to conform to section 21 of the coding style as pointed out by Catalin. arch/arm64/mm/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 44f07fdf7a59..71b45c58218b 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -212,7 +212,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) struct memblock_region *reg; unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES]; unsigned long max_dma32 = min; - unsigned long max_dma = min; + unsigned long __maybe_unused max_dma = min; memset(zone_size, 0, sizeof(zone_size)); -- 2.23.0