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=-6.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_NEOMUTT 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 21DDCC10F0E for ; Sun, 7 Apr 2019 22:21:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3EE620883 for ; Sun, 7 Apr 2019 22:21:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lixom-net.20150623.gappssmtp.com header.i=@lixom-net.20150623.gappssmtp.com header.b="hSRdVvj5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726584AbfDGWVB (ORCPT ); Sun, 7 Apr 2019 18:21:01 -0400 Received: from mail-lj1-f195.google.com ([209.85.208.195]:35264 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726437AbfDGWU6 (ORCPT ); Sun, 7 Apr 2019 18:20:58 -0400 Received: by mail-lj1-f195.google.com with SMTP id t4so9499734ljc.2 for ; Sun, 07 Apr 2019 15:20:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lixom-net.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=u+knILwqONfTtrEbzP1i0u78HwzBda5GqrFsEzNbHPQ=; b=hSRdVvj5oBE9U5X4lQsFlQ4k1i6PJv4ij4UK2HTdsbIHYJnu9FQkpUWxamv4pi6D3k aJW1PfHEvMDDal4cK8Ovcj29bfVXpV8GvyFPa0OjG9LqcgXsZ9ygrU0LxAbnwwmsz//f /lIu/EJnhV6h9OIHDVOPH0ZoGMXUM+x1jzOrDqL293WTpIZG7o2AQAB/EFSnGf4Nc1A3 5Fnt9H6wooi45UZe+SEaSCQ4vvwLIN6EdnZM67OXSNaJVAlx/+34EsPWVVVxTr1MJL3O ZIAvljtDze5mFkVj/iFfQrSsnsywbxbM/Jvfe0gw8SiRl5qK0mFDjenBbjsDjFJ88D9W hVCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=u+knILwqONfTtrEbzP1i0u78HwzBda5GqrFsEzNbHPQ=; b=DhHfsBg+ZQSipnVeQTdpxWHqUgz9oSF5YTV/q2YGZn/bzusws/cDJLh7WYd35vyESR 3l8ryGZLDRX/It0OFU80BniApwV39sL44E6Qh403uG8PqRSh3B8b7HiygncAzLbzaA8i tyboRS5MkCm7UBg5HWdUuxTgWs6nm0Vf711ki8pdUizpw+CFsW9xNA0gi07SkcWklgN+ EskqPUqaRitPdF+pmX5CbIqtVJ+ZaNFxdWTZEknmTFFpqhk4Lj9jrPYKuWi7qthwfhsD 0Do+6udU82lUi3tbfHCEQU+IPzFNmJ8eMG6f6h7ngS52ctj9mBv7/fOXCSCJJibCLyVe FxRg== X-Gm-Message-State: APjAAAVqfkj7uMDYPZjlGgFOplbNMctNgiN+NbZ7I6B/PJRWO/EwTG7t kYmaPgQurQQcfd7e2BsfisS2Mw== X-Google-Smtp-Source: APXvYqwMZxO3i1uQTRQsSuF4q1SphJuYCgZO5jDR6BYnOU8GcmWa/RlK7vb4rP/F9a1XiWDrzaZNcw== X-Received: by 2002:a2e:9d12:: with SMTP id t18mr13565346lji.163.1554675656654; Sun, 07 Apr 2019 15:20:56 -0700 (PDT) Received: from localhost (h85-30-9-151.cust.a3fiber.se. [85.30.9.151]) by smtp.gmail.com with ESMTPSA id f15sm6138442ljm.47.2019.04.07.15.20.55 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 07 Apr 2019 15:20:55 -0700 (PDT) Date: Sun, 7 Apr 2019 15:20:12 -0700 From: Olof Johansson To: Arnd Bergmann Cc: clang-built-linux@googlegroups.com, Nick Desaulniers , Nathan Chancellor , arm@kernel.org, Russell King , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] ARM: iop: don't use using 64-bit DMA masks Message-ID: <20190407222012.cqbo64w6mmtdfr6i@localhost> References: <20190325155101.3544731-1-arnd@arndb.de> <20190325155101.3544731-2-arnd@arndb.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190325155101.3544731-2-arnd@arndb.de> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 25, 2019 at 04:50:43PM +0100, Arnd Bergmann wrote: > clang warns about statically defined DMA masks from the DMA_BIT_MASK > macro with length 64: > > arch/arm/mach-iop13xx/setup.c:303:35: error: shift count >= width of type [-Werror,-Wshift-count-overflow] > static u64 iop13xx_adma_dmamask = DMA_BIT_MASK(64); > ^~~~~~~~~~~~~~~~ > include/linux/dma-mapping.h:141:54: note: expanded from macro 'DMA_BIT_MASK' > #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) > ^ ~~~ > > The ones in iop shouldn't really be 64 bit masks, so changing them > to what the driver can support avoids the warning. > > Signed-off-by: Arnd Bergmann Applied to fixes. -Olof