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 50556C00140 for ; Mon, 15 Aug 2022 21:44:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233015AbiHOVo1 (ORCPT ); Mon, 15 Aug 2022 17:44:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48244 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349299AbiHOVkx (ORCPT ); Mon, 15 Aug 2022 17:40:53 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A87D5A3E2; Mon, 15 Aug 2022 12:28:54 -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 sin.source.kernel.org (Postfix) with ESMTPS id DA674CE12C8; Mon, 15 Aug 2022 19:28:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 914FBC433D7; Mon, 15 Aug 2022 19:28:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591731; bh=T3JxhTHSCW/nvTO9zRsUjYtOC1qS6d5weGtlvLzl4/g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EZwbebuK7VrFmsfmMVtkbnj5xTxnniTrK6fk8Xsr7rKZlDN+Rf7Ofw6OKRZg/OG91 nvkzDW43BBZRdRMjHL37L19OaXD0Z8u997RKNa1yQAh20We9e5xxWxChj4+346GICw N5zTGzvAMJzfT3rvP/Fp6qqMYI3UQKK1ZG8k8pQ4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Navin Sankar Velliangiri , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.18 0673/1095] iio: temp: max31865: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:01:12 +0200 Message-Id: <20220815180457.216403426@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180429.240518113@linuxfoundation.org> References: <20220815180429.240518113@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: linux-kernel@vger.kernel.org From: Jonathan Cameron [ Upstream commit ecdef5b8317cdf18acb46223e087f04a226fa619 ] ____cacheline_aligned is an insufficient guarantee for non-coherent DMA on platforms with 128 byte cachelines above L1. Switch to the updated IIO_DMA_MINALIGN definition Fixes: e112dc4e18ea ("iio: temperature: Add MAX31865 RTD Support") Signed-off-by: Jonathan Cameron Cc: Navin Sankar Velliangiri Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-92-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/temperature/max31865.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/temperature/max31865.c b/drivers/iio/temperature/max31865.c index 86c3f3509a26..f0079e51d8d2 100644 --- a/drivers/iio/temperature/max31865.c +++ b/drivers/iio/temperature/max31865.c @@ -53,7 +53,7 @@ struct max31865_data { struct mutex lock; bool filter_50hz; bool three_wire; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); }; static int max31865_read(struct max31865_data *data, u8 reg, -- 2.35.1