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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BFBC3C7EE2C for ; Mon, 15 May 2023 17:56:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243346AbjEORzx (ORCPT ); Mon, 15 May 2023 13:55:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239975AbjEORzT (ORCPT ); Mon, 15 May 2023 13:55:19 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E320215EEE for ; Mon, 15 May 2023 10:53:33 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 30E68621EB for ; Mon, 15 May 2023 17:53:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 29374C4339B; Mon, 15 May 2023 17:53:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684173193; bh=4MSEWpCPmsHnmUimKtkF4utaACAQQHhpJqm1WmamqPs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T3yH3m/cGcPM5nPqhsHwlVBx0wtLAEt/H24qb92JgB6ayZLD27UjE+2wbz/norq8+ osiZpOStnC90qFTuPg1WJ6Z8AiJwZeCwsicJX5dqm+r7EuIwZIaRgb5baJ0CO2PKmO WnESBZT3ToZcquD8wLfckBxnSbp8XHLnMe45fLr0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Arnd Bergmann , Vladimir Oltean , Jonathan Cameron , Sasha Levin Subject: [PATCH 5.4 008/282] asm-generic/io.h: suppress endianness warnings for readq() and writeq() Date: Mon, 15 May 2023 18:26:26 +0200 Message-Id: <20230515161722.517538110@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161722.146344674@linuxfoundation.org> References: <20230515161722.146344674@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Vladimir Oltean [ Upstream commit d564fa1ff19e893e2971d66e5c8f49dc1cdc8ffc ] Commit c1d55d50139b ("asm-generic/io.h: Fix sparse warnings on big-endian architectures") missed fixing the 64-bit accessors. Arnd explains in the attached link why the casts are necessary, even if __raw_readq() and __raw_writeq() do not take endian-specific types. Link: https://lore.kernel.org/lkml/9105d6fc-880b-4734-857d-e3d30b87ccf6@app.fastmail.com/ Suggested-by: Arnd Bergmann Signed-off-by: Vladimir Oltean Reviewed-by: Jonathan Cameron Signed-off-by: Arnd Bergmann Signed-off-by: Sasha Levin --- include/asm-generic/io.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index d02806513670c..3dd3416f1df03 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -190,7 +190,7 @@ static inline u64 readq(const volatile void __iomem *addr) u64 val; __io_br(); - val = __le64_to_cpu(__raw_readq(addr)); + val = __le64_to_cpu((__le64 __force)__raw_readq(addr)); __io_ar(val); return val; } @@ -233,7 +233,7 @@ static inline void writel(u32 value, volatile void __iomem *addr) static inline void writeq(u64 value, volatile void __iomem *addr) { __io_bw(); - __raw_writeq(__cpu_to_le64(value), addr); + __raw_writeq((u64 __force)__cpu_to_le64(value), addr); __io_aw(); } #endif -- 2.39.2