From nobody Fri Oct 24 20:23:58 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 824D0C32762 for ; Mon, 15 Aug 2022 21:42:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349733AbiHOVls (ORCPT ); Mon, 15 Aug 2022 17:41:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348845AbiHOVhp (ORCPT ); Mon, 15 Aug 2022 17:37:45 -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 16B8DDEAB; Mon, 15 Aug 2022 12:27:32 -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 AA138610A1; Mon, 15 Aug 2022 19:27:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 969E1C433D6; Mon, 15 Aug 2022 19:27:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591651; bh=sbKiUkLWI4e9wRtVslmNKBxQISuUd3FwZfgPSd6f2fE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dGuhKSbsXS/AGKCzk1bDZkWcLeymfE1EbOFcg82Lg75GARs2REkJephyDRAMSUaHu sqo1tFW+3kbUt5BXdWVqURfvHWgqCzM1euGt2I38xCM2XaroB96PItGIB4QvcKFwzK Z98f8MJYZ/Vw/TdxKnph2utGRdWKVCm+0aqZ5F4Y= 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 0621/1095] iio: adc: ti-ads8344: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:20 +0200 Message-Id: <20220815180455.168008422@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 8966b11e5a14aaabc747ee97a7942fd50a681402 ] ____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: 8dd2d7c0fed7 ("iio: adc: Add driver for the TI ADS8344 A/DC chips") Signed-off-by: Jonathan Cameron Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-38-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/ti-ads8344.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti-ads8344.c b/drivers/iio/adc/ti-ads8344.c index c96d2a9ba924..bbd85cb47f81 100644 --- a/drivers/iio/adc/ti-ads8344.c +++ b/drivers/iio/adc/ti-ads8344.c @@ -28,7 +28,7 @@ struct ads8344 { */ struct mutex lock; =20 - u8 tx_buf ____cacheline_aligned; + u8 tx_buf __aligned(IIO_DMA_MINALIGN); u8 rx_buf[3]; }; =20 --=20 2.35.1