From patchwork Tue May 3 08:59:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12835391 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 9FB31C433F5 for ; Tue, 3 May 2022 09:06:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233253AbiECJJm (ORCPT ); Tue, 3 May 2022 05:09:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233251AbiECJJl (ORCPT ); Tue, 3 May 2022 05:09:41 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 644E52B256 for ; Tue, 3 May 2022 02:06:09 -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 F3800612CB for ; Tue, 3 May 2022 09:06:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CA3EAC385B1; Tue, 3 May 2022 09:05:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651568768; bh=RJ86wOJXZafnq4Uf8EC3MIljeq2hlox/JxqTdfI4+ek=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=df1FweNfVZJGZW95rs7ZM6DFRiiYardSmXH6T2VfkxWtcDzsrZXWzkxzN/cFAMuBq bG6IK0xZw2I4B+pdhHpPsFC6NO4704P0UyzHTl2zwR2bQGZkxhUqEcoO7PPJvTkwiL clGyOkL4WPFOt49vd1k5kKydi876/zeETxd+24+QknycvgHr2BYopGLc3R1IG87r3N s8dkWA0no0Q0udG33epEwVkRqxAkT+lDqeKc6ibRwmpZXtotQHAHgVRFXBaWg2McTE SQGkfSVvNmDawxTn2j5iwq/mPXjMDI/UMqnNw8Dik950g+6lkcGr+c2OKLkKZj83Td +S2jyGvw5q5aA== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Akinobu Mita , Alexandru Lazar , Alexandru Tachici , Antoniu Miclaus , Charles-Antoine Couret , Cosmin Tanislav , Cristian Pop , David Lechner , Ivan Mikhaylov , Jacopo Mondi , Jean-Baptiste Maneyrol , Lars-Peter Clausen , Marcelo Schmitt , =?utf-8?q?M=C3=A5rten_Lindahl?= , 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 92/92] iio: temp: maxim_thermocouple: Fix alignment for DMA safety Date: Tue, 3 May 2022 09:59:35 +0100 Message-Id: <20220503085935.1533814-93-jic23@kernel.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220503085935.1533814-1-jic23@kernel.org> References: <20220503085935.1533814-1-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_ALIGN definition Fixes: 1f25ca11d84a ("iio: temperature: add support for Maxim thermocouple chips") Signed-off-by: Jonathan Cameron Cc: Matt Ranostay --- drivers/iio/temperature/maxim_thermocouple.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c index 98c41cddc6f0..03f561af6dba 100644 --- a/drivers/iio/temperature/maxim_thermocouple.c +++ b/drivers/iio/temperature/maxim_thermocouple.c @@ -122,7 +122,7 @@ struct maxim_thermocouple_data { struct spi_device *spi; const struct maxim_thermocouple_chip *chip; - u8 buffer[16] ____cacheline_aligned; + u8 buffer[16] __aligned(IIO_ALIGN); char tc_type; };