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 C0FDAC25B0E for ; Mon, 15 Aug 2022 21:34:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348678AbiHOVe6 (ORCPT ); Mon, 15 Aug 2022 17:34:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39426 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348591AbiHOVds (ORCPT ); Mon, 15 Aug 2022 17:33:48 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73BC85FF78; Mon, 15 Aug 2022 12:24:42 -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 683B56101F; Mon, 15 Aug 2022 19:24:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50CC3C433D6; Mon, 15 Aug 2022 19:24:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591480; bh=Rc89W/iujlQ4wimzvMqL0A9iZ4hEsIzX4Ta5xrszvkY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dXJDZrdgtkcnRoZzJk6ChSw4JQ67+kOjDuUNTgjioHbSUkqFDKTtsS5Yl8En2Xy6s MTyJ1+FflflAyolTYxbNQTVPr3NEQBSw+eXrN+1oVXKIPxLyfyl0swYeQyHPB9TBYO BlWb/X6raJ3y24/ixvccC76epeA2+q8mBvcwqKDo= 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 0594/1095] iio: adc: ad7280a: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 19:59:53 +0200 Message-Id: <20220815180454.131911748@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 4e2008429588b857bbc13d048b67b931a8d84816 ] ____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: 003f1d48de52 ("staging:iio:adc:ad7280a: Split buff[2] into tx and rx parts") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-11-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/ad7280a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7280a.c b/drivers/iio/adc/ad7280a.c index ec9acbf12b9a..047a9d0dbcf7 100644 --- a/drivers/iio/adc/ad7280a.c +++ b/drivers/iio/adc/ad7280a.c @@ -183,7 +183,7 @@ struct ad7280_state { unsigned char cb_mask[AD7280A_MAX_CHAIN]; struct mutex lock; /* protect sensor state */ - __be32 tx ____cacheline_aligned; + __be32 tx __aligned(IIO_DMA_MINALIGN); __be32 rx; }; -- 2.35.1