From nobody Mon Sep 29 20:17:14 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 19478C25B0D for ; Tue, 16 Aug 2022 04:35:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230423AbiHPEfE (ORCPT ); Tue, 16 Aug 2022 00:35:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57496 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230345AbiHPEeX (ORCPT ); Tue, 16 Aug 2022 00:34:23 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3D0B16DC53; Mon, 15 Aug 2022 13:25:25 -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 11F73B80EAD; Mon, 15 Aug 2022 20:25:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 336C1C433D6; Mon, 15 Aug 2022 20:25:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595122; bh=o+aJkkxQg1xdwE3GE8FcNT0QI3kL4+w+o02wQgstK8o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AuS4abClBbLwXD1a1q/ZxmvGca0vZK9CLgNKim+fuP1UDnkWbeb6+TrmrAH2ReJ88 W9zxt3nOurxqLJWAQShbiAt5aGRpTHdZ+0ZIOkljJ7FnJmXHN2QtwEOtZ9IS8vmUqT yHiDd157DGYquTLloybqI6nz8/2maBUTPuNaHiS0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Tomislav Denis , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0664/1157] iio: adc: ti-ads131e08: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:20 +0200 Message-Id: <20220815180506.284127352@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180439.416659447@linuxfoundation.org> References: <20220815180439.416659447@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 55afdd050c063ae4b8dbd566107a030c00d005fd ] ____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: d935eddd2799 ("iio: adc: Add driver for Texas Instruments ADS131E0x = ADC family") Signed-off-by: Jonathan Cameron Cc: Tomislav Denis Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-36-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/ti-ads131e08.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti-ads131e08.c b/drivers/iio/adc/ti-ads131e08.c index 80a09817c119..32237cacc9a3 100644 --- a/drivers/iio/adc/ti-ads131e08.c +++ b/drivers/iio/adc/ti-ads131e08.c @@ -105,7 +105,7 @@ struct ads131e08_state { s64 ts __aligned(8); } tmp_buf; =20 - u8 tx_buf[3] ____cacheline_aligned; + u8 tx_buf[3] __aligned(IIO_DMA_MINALIGN); /* * Add extra one padding byte to be able to access the last channel * value using u32 pointer --=20 2.35.1