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 15FF2C00140 for ; Mon, 15 Aug 2022 21:37:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348868AbiHOVhs (ORCPT ); Mon, 15 Aug 2022 17:37:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348909AbiHOVgE (ORCPT ); Mon, 15 Aug 2022 17:36:04 -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 ED2B92AE07; Mon, 15 Aug 2022 12:25:27 -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 8AB6460693; Mon, 15 Aug 2022 19:25:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7D2F6C433D6; Mon, 15 Aug 2022 19:25:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591526; bh=b6g+upfMBir4x9nL9lFu0jJvrq9WrlcAMfMMZBcT7hY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XVJiPiFh6mJV4WQeO0FCTlnSI6dTx0TM8SL0wNbe1GN6MMkuw6Ua7tWZGsZJ+xA3w IXfVhsFyY5Of1aBIrww/mv9HsyoQmRwOObCXm1/hJ9RlBU8V8fobV0rQO6i//2WrYt U3fw5/U49XRC83b8a8a8i4A4pbsqdnf4V+Otc9sE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.18 0607/1095] iio: adc: max1027: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:06 +0200 Message-Id: <20220815180454.636359074@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 e754fb7e7a05e3838c9aa044b4114869dd0d1e17 ] ____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: fc167f624833 ("iio: add support of the max1027") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-24-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/max1027.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index 4daf1d576c4e..b725d012625c 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -272,7 +272,7 @@ struct max1027_state { struct mutex lock; struct completion complete; - u8 reg ____cacheline_aligned; + u8 reg __aligned(IIO_DMA_MINALIGN); }; static int max1027_wait_eoc(struct iio_dev *indio_dev) -- 2.35.1