From mboxrd@z Thu Jan 1 00:00:00 1970 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 74CBBC433EF for ; Sun, 8 May 2022 19:12:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229754AbiEHTQm (ORCPT ); Sun, 8 May 2022 15:16:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39358 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239433AbiEHR6N (ORCPT ); Sun, 8 May 2022 13:58:13 -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 478E4DFEA for ; Sun, 8 May 2022 10:54:22 -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 F357DB80E3F for ; Sun, 8 May 2022 17:54:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B945C385A4; Sun, 8 May 2022 17:54:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032459; bh=aH8YNNperI/poj9AmCgtkKVQL+tLzbatlbBWI76El0Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=duVcheFmG6mRurPr1TQyNMv31omvf5tEZxciveYD13M4ySTSkCuF1R1QaSTok1Aog 8QJh4K6ar/RJ/CfEVQdogvI1w6LuCgsGoNWBLOCmLgNvUP2oFC+6Db6OfQ8E6WMxWn gUx4uAIM5/gQ7rf9YzCz+u96gpsmTjNGWn2IQr9uM/whwwUjsIldjCA1tU9nNZOkmX lBJZ4VKfOgWXMwIsM/wcKXZcBTqPxisQTsqbnxBOCwGats5SMt4Yx2aUtjIM3MknNv 1QJxa8Q08SILbkQJkIqKUdqF77Ex++3o9zrD36uw114rEeRWDrirw5TG4Sv9ayMBoX Kmp9ArUNLn9TA== 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=20Lindahl?= , Matt Ranostay , Matt Ranostay , Michael Hennerich , Michael Welling , Mugilraj Dhavachelvan , Navin Sankar Velliangiri , =?UTF-8?q?Nuno=20S=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=20Kleine-K=C3=B6nig?= , Jonathan Cameron Subject: [PATCH v2 42/92] iio: common: ssp: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:22 +0100 Message-Id: <20220508175712.647246-43-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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Jonathan Cameron ____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: 50dd64d57eee ("iio: common: ssp_sensors: Add sensorhub driver") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá --- drivers/iio/common/ssp_sensors/ssp.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iio/common/ssp_sensors/ssp.h b/drivers/iio/common/ssp_sensors/ssp.h index abb832795619..f649cdecc277 100644 --- a/drivers/iio/common/ssp_sensors/ssp.h +++ b/drivers/iio/common/ssp_sensors/ssp.h @@ -221,8 +221,7 @@ struct ssp_data { struct iio_dev *sensor_devs[SSP_SENSOR_MAX]; atomic_t enable_refcount; - __le16 header_buffer[SSP_HEADER_BUFFER_SIZE / sizeof(__le16)] - ____cacheline_aligned; + __le16 header_buffer[SSP_HEADER_BUFFER_SIZE / sizeof(__le16)] __aligned(IIO_DMA_MINALIGN); }; void ssp_clean_pending_list(struct ssp_data *data); -- 2.36.0