From nobody Fri Oct 24 20:31:43 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 4249FC00140 for ; Mon, 15 Aug 2022 21:49:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350031AbiHOVtq (ORCPT ); Mon, 15 Aug 2022 17:49:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350004AbiHOVrB (ORCPT ); Mon, 15 Aug 2022 17:47:01 -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 185B733A06; Mon, 15 Aug 2022 12:30:44 -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 67CE26111E; Mon, 15 Aug 2022 19:30:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6AE1CC433D6; Mon, 15 Aug 2022 19:30:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591843; bh=dYtzRbPPdLqJorc5v/DVHVdbr2kS8jGXbCpIM27gDQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u6HCXMi0R/rWMBcw/IjmfFOLMgu2OmWA54qlHIWRL0PayaCbOv9uGDO+67S4RCTj+ SxVebInbpyQqcMlMXNOXRtZrrJYcMonNL+wOefTXE2ePZVizCa+t+bfvcmvb30Lbom TDTYrH5HbrzoUHDCxGl8H3kmjfEwCNnV/+XLNYPs= 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 5.18 0661/1095] iio: imu: inv_icm42600: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:01:00 +0200 Message-Id: <20220815180456.748935915@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 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