From patchwork Tue May 3 08:58:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12835355 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 CCBFAC433F5 for ; Tue, 3 May 2022 09:00:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233186AbiECJEP (ORCPT ); Tue, 3 May 2022 05:04:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42414 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233149AbiECJEH (ORCPT ); Tue, 3 May 2022 05:04:07 -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 67D771A3BA for ; Tue, 3 May 2022 02:00:35 -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 081516135C for ; Tue, 3 May 2022 09:00:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9F4C8C385A4; Tue, 3 May 2022 09:00:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651568434; bh=dzFwIHmPu33oQMmRRhP+izxTDX3Mte1bSsk4KHwWv3Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JUGM56vPeXtVjOVmqyHODcwVizAM39+Xes1VULa+Udzk1/T2+Iyt0m0ETh4u8k0aN 2sR4K5f3WTvQBlSIay+tCnV3jk749AtgLBhfwflt3ed9t+URc55bNvwJQufDtAodph JNd5ZE2H462TlR1OBAIG8NLRKuAekx5KnWee3VMv4pJEH871oWBpLJsP7lW+ro5xLT npRj6pfpTTaVTzlBZ4ksi6FPHegRUx4IODPgYxPaIL+I17l8agKe16TEpiUlglawRT 3z4RMxm2xulGEBJqJwdjDcuw1aijI4aLSTgKCaK7aL/95ymRKSFEC9/3B3paLiGF5f MlFnkGep+lfng== 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 56/92] iio: dac: ad7293: Fix alignment for DMA safety Date: Tue, 3 May 2022 09:58:59 +0100 Message-Id: <20220503085935.1533814-57-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: 0bb12606c05f ("iio:dac:ad7293: add support for AD7293") Signed-off-by: Jonathan Cameron Cc: Antoniu Miclaus --- drivers/iio/dac/ad7293.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad7293.c b/drivers/iio/dac/ad7293.c index 59a38ca4c3c7..c2532d431214 100644 --- a/drivers/iio/dac/ad7293.c +++ b/drivers/iio/dac/ad7293.c @@ -144,7 +144,7 @@ struct ad7293_state { struct regulator *reg_avdd; struct regulator *reg_vdrive; u8 page_select; - u8 data[3] ____cacheline_aligned; + u8 data[3] __aligned(IIO_ALIGN); }; static int ad7293_page_select(struct ad7293_state *st, unsigned int reg)