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 C4F64C32763 for ; Mon, 15 Aug 2022 21:42:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349601AbiHOVla (ORCPT ); Mon, 15 Aug 2022 17:41:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348825AbiHOVhl (ORCPT ); Mon, 15 Aug 2022 17:37:41 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F5825FAF; Mon, 15 Aug 2022 12:27:24 -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 ams.source.kernel.org (Postfix) with ESMTPS id F186EB81109; Mon, 15 Aug 2022 19:27:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 497DCC433D6; Mon, 15 Aug 2022 19:27:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591641; bh=ryrRA7jYT//H0xbqp5+yaatD738JmA/+IKo8VTpNAEo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r4EL3t8YIW+klh9PiNu7IxpBub7/dg3dqkvhzdyZkalKKnsehWnoj1Acz+DLvKCku n8+DN8h1R01ycK2whGDvCJ/CPq+oO21vOlgCx8m/o/nN9bKZTQb9oC93KQ0SK5MhJR Jkbd48EYPh6fPYEzqToc2RWkuIhgHh17lRPkXIB0= 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 0645/1095] iio: dac: ti-dac082s085: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:44 +0200 Message-Id: <20220815180456.076773995@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 03a0cc77f164e4e59b970d50c6e9a6caf06dae80 ] ____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: 61011264c1af ("iio: dac: Add Texas Instruments 8/10/12-bit 2/4-channel DAC driver") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-62-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/dac/ti-dac082s085.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ti-dac082s085.c b/drivers/iio/dac/ti-dac082s085.c index 4e1156e6deb2..f52ad8fa7747 100644 --- a/drivers/iio/dac/ti-dac082s085.c +++ b/drivers/iio/dac/ti-dac082s085.c @@ -55,7 +55,7 @@ struct ti_dac_chip { bool powerdown; u8 powerdown_mode; u8 resolution; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); }; #define WRITE_NOT_UPDATE(chan) (0x00 | (chan) << 6) -- 2.35.1