From patchwork Tue May 3 08:58:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12835325 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 11040C433EF for ; Tue, 3 May 2022 08:56:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233066AbiECI7c (ORCPT ); Tue, 3 May 2022 04:59:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38002 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233075AbiECI7a (ORCPT ); Tue, 3 May 2022 04:59:30 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D41C536312 for ; Tue, 3 May 2022 01:55:52 -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 70F0F612FE for ; Tue, 3 May 2022 08:55:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ED0C4C385A4; Tue, 3 May 2022 08:55:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651568151; bh=S7JbmaK1gDOvlJtqDvbGv4b9Xf9XakDgGWtzPmBVk60=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uBAm7Sy5rPkFymUyhx10zazVh/TV0G/T6MJVhXMxusdjKmEow12lTOA2S5CBhJTki urGKUrtzVmhkgMsBunwWxQfa39W7K6UULtYV/3Q83pEI3bK3t3KoCgDA/eEFpJ5Cqf HgwVvFY4ja9sTcgCm088rJIcAMzQxi3W3JOjxHHtNJIouoRPg3zar96+gb90R2Qobm sLU2VRLjlKm13L9xLc7gQuVzXA3Z9vGWd5gomGkjxjnV9UIdTI9BWMcHFldB39ciqu GKX+/APUQxUayVk29COQjepSnoDMDE1TrN8ekDHdYf3aZH6xvw0QQuuNt5QJZlqTy6 7/+F7iP2RzyBg== 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 26/92] iio: adc: max1241: Fix alignment for DMA safety Date: Tue, 3 May 2022 09:58:29 +0100 Message-Id: <20220503085935.1533814-27-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: 8a80a71d9020 ("iio: adc: Add MAX1241 driver") Signed-off-by: Jonathan Cameron Cc: Alexandru Lazar Acked-by: Alexandru Lazar --- drivers/iio/adc/max1241.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/max1241.c b/drivers/iio/adc/max1241.c index a5afd84af58b..e3dbcc2e4e77 100644 --- a/drivers/iio/adc/max1241.c +++ b/drivers/iio/adc/max1241.c @@ -26,7 +26,7 @@ struct max1241 { struct regulator *vref; struct gpio_desc *shutdown; - __be16 data ____cacheline_aligned; + __be16 data __aligned(IIO_ALIGN); }; static const struct iio_chan_spec max1241_channels[] = {