From patchwork Tue May 3 08:58:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12835309 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 7EBC7C433F5 for ; Tue, 3 May 2022 08:53:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233006AbiECI4z (ORCPT ); Tue, 3 May 2022 04:56:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230464AbiECI4x (ORCPT ); Tue, 3 May 2022 04:56:53 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 90C6B20BFD for ; Tue, 3 May 2022 01:53:22 -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 2DA6E61326 for ; Tue, 3 May 2022 08:53:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 37E71C385A9; Tue, 3 May 2022 08:53:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651568001; bh=1jAZkZcI7BBOiYuBGkmPzkwxT3TF9Uqi+bvzj6CBGrg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rNW5+M0+hseUhylkwyl/nBbRv60jgO0rdMcngNdu2JZvGqi59hgtN+a3jjlGTeF0L +HVhU3JCorKe3louAMkI1QDr3pB104IwoxUKis7ar+vT0097Dm873zFwyiLVO08k3f zW42omIhF81Yw5Z3I3HWZgNl7WDBYxX6XJpolCrKijj//gF9qju3MdkAXZT8oHcneQ WU65OySEF6FOM8US2fFvhglGpcUWRNZKmIDdYYvij/pHoDW8oZLC8U5Kz0tGCdJw+3 MIa5wPi7LMz2ZDB4VpaOnSn4mrQZuSLGKw+0bU7D8d0AyVj5fU2Hxu2DoksPQ1mN6d NhneQbPie0KEQ== 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 10/92] iio: adc: ad7280a: Fix alignment for DMA safety Date: Tue, 3 May 2022 09:58:13 +0100 Message-Id: <20220503085935.1533814-11-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: 003f1d48de52 ("staging:iio:adc:ad7280a: Split buff[2] into tx and rx parts") Signed-off-by: Jonathan Cameron --- drivers/iio/adc/ad7280a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7280a.c b/drivers/iio/adc/ad7280a.c index ec9acbf12b9a..74173e54b254 100644 --- a/drivers/iio/adc/ad7280a.c +++ b/drivers/iio/adc/ad7280a.c @@ -183,7 +183,7 @@ struct ad7280_state { unsigned char cb_mask[AD7280A_MAX_CHAIN]; struct mutex lock; /* protect sensor state */ - __be32 tx ____cacheline_aligned; + __be32 tx __aligned(IIO_ALIGN); __be32 rx; };