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 BDD9DC7619A for ; Thu, 13 Apr 2023 02:38:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230294AbjDMCiR (ORCPT ); Wed, 12 Apr 2023 22:38:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229935AbjDMChn (ORCPT ); Wed, 12 Apr 2023 22:37:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D2E9901A; Wed, 12 Apr 2023 19:37:07 -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 C869D63A6A; Thu, 13 Apr 2023 02:36:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 82CF3C433EF; Thu, 13 Apr 2023 02:36:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1681353402; bh=Nhkt5pijSeEMJN2dJ99XtCmUeNJrKaNNXYb9he2rH3E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XAFWrVpY7ed/ttlsay2MLd8nuAU2UsHdJnr1oPC3fc+6o+yYWZ9tJQmDzEA3bQHbh eoOOsc/iXaSswe08TGefDlQXxCrfj08YnrLbgYiCM2FSkMNrB1ldzcPynDmS/xst7B 5wMrTcPWadY7kiVJ91OVmiMlpVaveG3pkHDjrI6JwSdhNeFH3lJRwfu23+pBOI3nzH fIP68lbi0qGCaVfOSxZcI++v55uMdChEySq+LMDV3y9QQs4wfn0qxLrpSTw7pUmMB2 vWwPsXIc1zuEvfnBjftq0dndsuXlXhptD52jBmiwlZP0amXGKWsFhBATV7Sz7+QsoP NueytI9/eNq6A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Vladimir Oltean , Arnd Bergmann , Jonathan Cameron , Sasha Levin , linux-arch@vger.kernel.org Subject: [PATCH AUTOSEL 6.2 18/20] asm-generic/io.h: suppress endianness warnings for readq() and writeq() Date: Wed, 12 Apr 2023 22:35:56 -0400 Message-Id: <20230413023601.74410-18-sashal@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230413023601.74410-1-sashal@kernel.org> References: <20230413023601.74410-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@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 4c44a29b5e8ef..d78c3056c98f9 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -236,7 +236,7 @@ static inline u64 readq(const volatile void __iomem *addr) log_read_mmio(64, addr, _THIS_IP_, _RET_IP_); __io_br(); - val = __le64_to_cpu(__raw_readq(addr)); + val = __le64_to_cpu((__le64 __force)__raw_readq(addr)); __io_ar(val); log_post_read_mmio(val, 64, addr, _THIS_IP_, _RET_IP_); return val; @@ -287,7 +287,7 @@ static inline void writeq(u64 value, volatile void __iomem *addr) { log_write_mmio(value, 64, addr, _THIS_IP_, _RET_IP_); __io_bw(); - __raw_writeq(__cpu_to_le64(value), addr); + __raw_writeq((u64 __force)__cpu_to_le64(value), addr); __io_aw(); log_post_write_mmio(value, 64, addr, _THIS_IP_, _RET_IP_); } -- 2.39.2