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=-13.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 370E4C433E3 for ; Mon, 24 Aug 2020 09:11:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1351F2072D for ; Mon, 24 Aug 2020 09:11:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598260284; bh=XIIXTbt/QIRGAo/NW8dnaqnoj6NT/0V7mQ4/PLFvF3o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=OmGO7HSqPUFCnE0okZ3DoCtOrscV46G4XEFF1VoMG6hU/WagH5sJnQz5v6589H05s zIpVm9Snj/evUntP9OwFGJ0uk4P5o0uT4tzBhPXkvc6hXOBpo+HopdW8VrJT/mPzj1 zg14CDyX+Tsfv6VcbNvIgWm2lDfZfwFHt+63YwK4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729530AbgHXJLW (ORCPT ); Mon, 24 Aug 2020 05:11:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:40738 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728730AbgHXI4T (ORCPT ); Mon, 24 Aug 2020 04:56:19 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 83A342074D; Mon, 24 Aug 2020 08:56:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598259379; bh=XIIXTbt/QIRGAo/NW8dnaqnoj6NT/0V7mQ4/PLFvF3o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=02jrR+c1HiNWgyQjPL44WXqA3huuySDTcOK1La3eFi/e57n3jxwo+oFO/dAR2JKIZ FvuZdFboOegWV7Ag/LzWX8Qn9pwWTOZpPTrMF9cLPUHs5QHJEZG0R7oEowqcU1JIX9 McOcepWJpHlzh6GPlBax+I6j+ZpQq451skwVxKko= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, kernel test robot , Luc Van Oostenryck , Andrew Morton , Richard Henderson , Ivan Kokshaysky , Matt Turner , Stephen Boyd , Arnd Bergmann , Linus Torvalds , Sasha Levin Subject: [PATCH 4.19 37/71] alpha: fix annotation of io{read,write}{16,32}be() Date: Mon, 24 Aug 2020 10:31:28 +0200 Message-Id: <20200824082357.742942639@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200824082355.848475917@linuxfoundation.org> References: <20200824082355.848475917@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Luc Van Oostenryck [ Upstream commit bd72866b8da499e60633ff28f8a4f6e09ca78efe ] These accessors must be used to read/write a big-endian bus. The value returned or written is native-endian. However, these accessors are defined using be{16,32}_to_cpu() or cpu_to_be{16,32}() to make the endian conversion but these expect a __be{16,32} when none is present. Keeping them would need a force cast that would solve nothing at all. So, do the conversion using swab{16,32}, like done in asm-generic for similar situations. Reported-by: kernel test robot Signed-off-by: Luc Van Oostenryck Signed-off-by: Andrew Morton Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Stephen Boyd Cc: Arnd Bergmann Link: http://lkml.kernel.org/r/20200622114232.80039-1-luc.vanoostenryck@gmail.com Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- arch/alpha/include/asm/io.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h index eb09d5aee9106..0bba9e991189d 100644 --- a/arch/alpha/include/asm/io.h +++ b/arch/alpha/include/asm/io.h @@ -507,10 +507,10 @@ extern inline void writeq(u64 b, volatile void __iomem *addr) } #endif -#define ioread16be(p) be16_to_cpu(ioread16(p)) -#define ioread32be(p) be32_to_cpu(ioread32(p)) -#define iowrite16be(v,p) iowrite16(cpu_to_be16(v), (p)) -#define iowrite32be(v,p) iowrite32(cpu_to_be32(v), (p)) +#define ioread16be(p) swab16(ioread16(p)) +#define ioread32be(p) swab32(ioread32(p)) +#define iowrite16be(v,p) iowrite16(swab16(v), (p)) +#define iowrite32be(v,p) iowrite32(swab32(v), (p)) #define inb_p inb #define inw_p inw -- 2.25.1