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 41E5FC2BB9D for ; Mon, 15 Aug 2022 21:42:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349666AbiHOVlk (ORCPT ); Mon, 15 Aug 2022 17:41:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348832AbiHOVho (ORCPT ); Mon, 15 Aug 2022 17:37:44 -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 03922764B; Mon, 15 Aug 2022 12:27:29 -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 97A7560EF0; Mon, 15 Aug 2022 19:27:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 86967C433D6; Mon, 15 Aug 2022 19:27:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591648; bh=p602ogtdB0tsIU314uDoYRHO1tao2jzK++pqzAL2gtU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bQbxzwexEAQIeXQProorV61ubUcd7oXbwc3bSaMEvQl3ZLus8/KuiA4/m1ydlc6h1 Drx+e0wY5m7u+cmQ838mpPQqbzPwF4YpMktpchqSY/LUqCPITN0KLiy/OMAo7May0c 0hELwNb+zBt5GH0rIpXLjDZuGFs4JKQvgxqmwBik= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Charles-Antoine Couret , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.18 0647/1095] iio: dac: ti-dac7311: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:46 +0200 Message-Id: <20220815180456.156169522@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 3637c49ed54632d7c221af718d2d7b1d381d4b6e ] ____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: 7a02ef7907d8 ("iio:dac:ti-dac7311 Add driver for Texas Instrument DAC7311") Signed-off-by: Jonathan Cameron Cc: Charles-Antoine Couret Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-64-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/dac/ti-dac7311.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ti-dac7311.c b/drivers/iio/dac/ti-dac7311.c index e10d17e60ed3..dd0a7b77838d 100644 --- a/drivers/iio/dac/ti-dac7311.c +++ b/drivers/iio/dac/ti-dac7311.c @@ -52,7 +52,7 @@ struct ti_dac_chip { bool powerdown; u8 powerdown_mode; u8 resolution; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); }; static u8 ti_dac_get_power(struct ti_dac_chip *ti_dac, bool powerdown) -- 2.35.1