From nobody Fri Oct 24 20:35:23 2025 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 3095AC00140 for ; Mon, 15 Aug 2022 21:51:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350155AbiHOVun (ORCPT ); Mon, 15 Aug 2022 17:50:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350212AbiHOVr2 (ORCPT ); Mon, 15 Aug 2022 17:47:28 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C6336524A; Mon, 15 Aug 2022 12:31:16 -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 6928BB810C6; Mon, 15 Aug 2022 19:31:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E89EC433D6; Mon, 15 Aug 2022 19:31:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591874; bh=an4bUhqZY3EouznEf8JWpPb3qALmzTCafVC8Jys3Shk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tA3JDqiG2U0crjp0ddWGGsULGjdw+s+D+tsmAwq5jvtOnS+Cy/W5iCjia7+G7MhZr spu8g7GS257+oqVoUdtXhTx/sVL9lqZ6ySAaW9hBj1vogaUvrln1BDMXrwtg0wMBIb UeP10lFyiXlUdappCojc8JxSKjyyDJRn3Spk6qGc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Phil Reid , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.18 0665/1095] iio: potentiometer: ad5272: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:01:04 +0200 Message-Id: <20220815180456.906096386@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: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jonathan Cameron [ Upstream commit da803652534271dbb4af0802bd678c759e27e6de ] ____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: 79e8a32d2aa9 ("iio: ad5272: Add support for Analog Devices digital p= otentiometers") Signed-off-by: Jonathan Cameron Reviewed-by: Phil Reid Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-82-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/potentiometer/ad5272.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/potentiometer/ad5272.c b/drivers/iio/potentiometer= /ad5272.c index d8cbd170262f..ed5fc0b50fe9 100644 --- a/drivers/iio/potentiometer/ad5272.c +++ b/drivers/iio/potentiometer/ad5272.c @@ -50,7 +50,7 @@ struct ad5272_data { struct i2c_client *client; struct mutex lock; const struct ad5272_cfg *cfg; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); }; =20 static const struct iio_chan_spec ad5272_channel =3D { --=20 2.35.1