From nobody Mon Sep 29 20:19:09 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 81955C282E7 for ; Tue, 16 Aug 2022 04:37:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231296AbiHPEhJ (ORCPT ); Tue, 16 Aug 2022 00:37:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231180AbiHPEgZ (ORCPT ); Tue, 16 Aug 2022 00:36:25 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3211C6170B; Mon, 15 Aug 2022 13:27:37 -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 C4B94B80EB1; Mon, 15 Aug 2022 20:27:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 30AE4C433D7; Mon, 15 Aug 2022 20:27:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595254; bh=dYtzRbPPdLqJorc5v/DVHVdbr2kS8jGXbCpIM27gDQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G6fU3hE4GFQCa1KcuuGRmC5LzwgmUH9bHaU8zvWlWgliG73EL4GiNOr2wrisWcqIa dZgL2F4t8g98JghN7vPWbHy5Z8wHFugetTaA2nbiGcAJwHIXJwdZre2WAgbtDwtigj dr24fxVDr+veJGGBjQFBVs5KOww1d0k1fKDFaptw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Jean-Baptiste Maneyrol , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0706/1157] iio: imu: inv_icm42600: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:01:02 +0200 Message-Id: <20220815180507.820895837@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 848847702bd10bf0bf547e38adc44c14e9742784 ] Partial fix for this driver as a second instance was introduced in a later patch. ____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: a095fadb443b ("iio: imu: inv_icm42600: add gyroscope IIO device") Signed-off-by: Jonathan Cameron Acked-by: Jean-Baptiste Maneyrol Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-78-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/imu/inv_icm42600/inv_icm42600.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600.h b/drivers/iio/imu/= inv_icm42600/inv_icm42600.h index 995a9dc06521..3d91469beccb 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h @@ -141,7 +141,7 @@ struct inv_icm42600_state { struct inv_icm42600_suspended suspended; struct iio_dev *indio_gyro; struct iio_dev *indio_accel; - uint8_t buffer[2] ____cacheline_aligned; + uint8_t buffer[2] __aligned(IIO_DMA_MINALIGN); struct inv_icm42600_fifo fifo; struct { int64_t gyro; --=20 2.35.1