From patchwork Tue May 3 08:58:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12835310 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 031B7C433F5 for ; Tue, 3 May 2022 08:53:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232871AbiECI5G (ORCPT ); Tue, 3 May 2022 04:57:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230464AbiECI5F (ORCPT ); Tue, 3 May 2022 04:57:05 -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 6A10835ABF for ; Tue, 3 May 2022 01:53:34 -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 27D1FB81A96 for ; Tue, 3 May 2022 08:53:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FD04C385B0; Tue, 3 May 2022 08:53:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651568011; bh=jGI2OSMTOwOb0RbPbYJDUpm0dWtsy4B0H8J1EwuN84s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e93OCqDGJkvtxDi0RjT8mJ/Tz5CqcWuUp5j0M+pQTmx5vqHGeWjnTrayKERW7B47Z j27dgy9tikaesR60S4sB2ZBBnisJrYTmJp2r9BwO7l1eYK0OAOVL9VagbwjTDvGyv9 OCw21bgP2QbF3r8Sc0Pw+GIMPoM3Btz2rwQzZcdl+15UOCsJ5mMj7bvPYauMftT8Wv EUTsS2pZXLsT3Yoj+Qnf1I3ll94e4jXExWBD7bBOipxc4Z6lFHO/2Zoq4nL4CXOKGK 3dy1kS/HzgvpWUMQfU9duF4C7shzAxi0uP386RmI0sAqG8XbiEP9Enz3vUl4k3GLce Zg6Bdsc87MvJg== 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 11/92] iio: adc: ad7292: Fix alignment for DMA safety Date: Tue, 3 May 2022 09:58:14 +0100 Message-Id: <20220503085935.1533814-12-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: 506d2e317a0a ("iio: adc: Add driver support for AD7292") Signed-off-by: Jonathan Cameron Cc: Marcelo Schmitt Acked-by: Marcelo Schmitt --- drivers/iio/adc/ad7292.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c index 3271a31afde1..08985fc5c200 100644 --- a/drivers/iio/adc/ad7292.c +++ b/drivers/iio/adc/ad7292.c @@ -80,7 +80,7 @@ struct ad7292_state { struct regulator *reg; unsigned short vref_mv; - __be16 d16 ____cacheline_aligned; + __be16 d16 __aligned(IIO_ALIGN); u8 d8[2]; };