From patchwork Sun May 8 17:56:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842672 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 7F879C41535 for ; Sun, 8 May 2022 19:17:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231597AbiEHTTE (ORCPT ); Sun, 8 May 2022 15:19:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232336AbiEHSCc (ORCPT ); Sun, 8 May 2022 14:02:32 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 680CC5F55 for ; Sun, 8 May 2022 10:58:42 -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 28B55B80E48 for ; Sun, 8 May 2022 17:58:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A995C385AC; Sun, 8 May 2022 17:58:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032719; bh=+BWXPdcZLVwvX6+4PRqN9e2x+gHPHOFeKc3pnlZgtfo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i3h4vaHZmCroCWyo3rb07fkHpXcNsFOLSknS3WqSDtchsLtG8UZO1hyAXqki50e7A F4EaGZ1OZJr6ebz6sl27YkssnyR4a7by5pOOTMbMXBAObhFVvtOGTIiObM+j0AeA2+ zopV2JHnIZJ7Su47+tgFjdS7zLDTdy3pjP0lO+EDpIMxv/dPSfvNUu5h0V3sqBNYrj j80mQr5kaON8Z3bsJPdgrXNj2q5qYJ2nUs97xzMNoyfUMq21aooX1BjDFoi3c9WOPL 4cX57d9rSPR0CMOslEhLUgqoRz+ELTS2Ac39jIZOa5Pu6j9h9inGMub7dTBZwhu6Kx tSDFpB6KYguZA== 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 76/92] iio: imu: fxos8700: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:56 +0100 Message-Id: <20220508175712.647246-77-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: 84e5ddd5c46e ("iio: imu: Add support for the FXOS8700 IMU") Signed-off-by: Jonathan Cameron Cc: Robert Jones Acked-by: Nuno Sá --- drivers/iio/imu/fxos8700_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/imu/fxos8700_core.c b/drivers/iio/imu/fxos8700_core.c index ab288186f36e..423cfe526f2a 100644 --- a/drivers/iio/imu/fxos8700_core.c +++ b/drivers/iio/imu/fxos8700_core.c @@ -167,7 +167,7 @@ struct fxos8700_data { struct regmap *regmap; struct iio_trigger *trig; - __be16 buf[FXOS8700_DATA_BUF_SIZE] ____cacheline_aligned; + __be16 buf[FXOS8700_DATA_BUF_SIZE] __aligned(IIO_DMA_MINALIGN); }; /* Regmap info */