From patchwork Sun May 8 17:56:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842587 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 476E5C433EF for ; Sun, 8 May 2022 19:13:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229499AbiEHTRD (ORCPT ); Sun, 8 May 2022 15:17:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238708AbiEHSCj (ORCPT ); Sun, 8 May 2022 14:02:39 -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 B9B875F55 for ; Sun, 8 May 2022 10:58:48 -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 55E696128E for ; Sun, 8 May 2022 17:58:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C9F8C385AF; Sun, 8 May 2022 17:58:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032727; bh=ouRN372AGHx0ze9+TePTGrvhFbv/Nt2dtvGDuhsfR/M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y6KRkxpG8Kj/G75EZf9qwMwdNBQfzxfQovgzplzoH73adxaYofeM1SzTpnkeMp27S 8qbl4pSMHGRArSxqeyi6C756Uzi7Vn853QtCuaJL/w/LF+jiJvTLpFLd986yhoQTAo Xo1burE2SAQ4XgiJvgrFUX6Yd6O2CMahbKd/GKMz7TMb6sG6fCfvpuOrZXzOAHXEMF HfiOthWXNFNLfByEIaCBCrE7I8XAPIa/g8g8InvkZ3ZwG8B3/pZFotmq5H7XFLm7YJ tlFKdgdL3i1mCB9EqiyCTaKqypqpiLgOJnzhtAq9O1RVN9UysFtHbbUGsrAgyHLutZ iC6xykpvZ7N1w== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Alexandru Lazar , Akinobu Mita , Alexandru Tachici , Antoniu Miclaus , Charles-Antoine Couret , Cosmin Tanislav , David Lechner , Ivan Mikhaylov , Jacopo Mondi , Jean-Baptiste Maneyrol , Lars-Peter Clausen , Marcelo Schmitt , =?utf-8?q?M=C3=A5rten_Lindahl?= , Matt Ranostay , Matt Ranostay , Michael Hennerich , Michael Welling , Mugilraj Dhavachelvan , Navin Sankar Velliangiri , =?utf-8?q?Nuno_S=C3=A1?= , Paul Cercueil , Phil Reid , Puranjay Mohan , Ricardo Ribalda , Robert Jones , Rui Miguel Silva , Sean Nyekjaer , Tomas Melin , Tomislav Denis , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Jonathan Cameron , Jean-Baptiste Maneyrol Subject: [PATCH v2 77/92] iio: imu: inv_icm42600: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:57 +0100 Message-Id: <20220508175712.647246-78-jic23@kernel.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220508175712.647246-1-jic23@kernel.org> References: <20220508175712.647246-1-jic23@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Jonathan Cameron 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 Sá --- 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 c0f5059b13b3..62fedac54e65 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h @@ -140,7 +140,7 @@ 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;