From patchwork Sun May 8 17:56:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842546 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 57B09C4332F for ; Sun, 8 May 2022 19:11:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235949AbiEHTPC (ORCPT ); Sun, 8 May 2022 15:15:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236468AbiEHSCR (ORCPT ); Sun, 8 May 2022 14:02:17 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94584558C for ; Sun, 8 May 2022 10:58:26 -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 49F8EB80BA8 for ; Sun, 8 May 2022 17:58:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6EA2EC385B0; Sun, 8 May 2022 17:58:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032704; bh=W9XDT+V3KiRP5mhazcu8AxHkS57sih/DWnzHi9JKOcs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ridokq6KibJWAA60OTolUnPjx8tlleeCQlkqN7CuTHSBmbuZkQ8Qx03hcNCWENvm7 gpINqmcZBvJmV6Ze2BSHFqhV9CkVWkjFb5Z84rIllpUrPe2JOGJdMmwqCGMWGYzb/d qCpNOrbdu81uA6jwWpjvquRcfp1DamcwMvVhu8MQpwRNhB2yqMYoVEnk3YMgtz+rL0 sWfbB8J2Rp8NzHMwxHs8uBItJQs4l2H2h6XKuJbIxtqC1DhWFnVO7+KFliG1d0+dGl w8W7EEuQwwL0JjBRPkEuQLtWcvu8xweuBX/i7Z4IuvBL2hJc1/7Z58urmz/5B5bbpU lrmr5TTIfFyAw== 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 Subject: [PATCH v2 74/92] iio: gyro: adxrs450: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:54 +0100 Message-Id: <20220508175712.647246-75-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 ____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 tag is inaccurate but unlikely anyone will be interested in backporting beyond that point. Fixes: 53ac8500ba9b ("staging:iio:adxrs450: Move header file contents to main file") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá --- drivers/iio/gyro/adxrs450.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c index 04f350025215..f84438e0c42c 100644 --- a/drivers/iio/gyro/adxrs450.c +++ b/drivers/iio/gyro/adxrs450.c @@ -73,7 +73,7 @@ enum { struct adxrs450_state { struct spi_device *us; struct mutex buf_lock; - __be32 tx ____cacheline_aligned; + __be32 tx __aligned(IIO_DMA_MINALIGN); __be32 rx; };