From patchwork Sun May 8 17:56:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842545 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 67DACC433FE for ; Sun, 8 May 2022 19:11:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236310AbiEHTPD (ORCPT ); Sun, 8 May 2022 15:15:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239163AbiEHR4E (ORCPT ); Sun, 8 May 2022 13:56:04 -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 16EE4DFEA for ; Sun, 8 May 2022 10:52:14 -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 A76EC6127D for ; Sun, 8 May 2022 17:52:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A140BC385AC; Sun, 8 May 2022 17:52:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032333; bh=LUtFV/VpLeH2QZqdyJGIswKbijSeuCa4TOlOfFtP4Ho=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rjnJ6ZwkoDQSR+Hk/OATmUl8b+iNxK1SQ0Ok6PR3mdetYVfX+mUdEarA+6eDHaHk0 Q1FJq4+tr8MqgViGbQdcSc7VUGfZtV/pvDTopGGluiXgIy5eynEs9F9VyXbWRYJ4+O 63ucMHV+fT/jEi4rmJnxwlyHAUhefGHCrIJHv4/gIsLhP42/bToV78VrG1pHjQbsxy li4RbKfd3c73mTDbv7HRPNLpLzdkYJ8QiSpcNhm6IpcFq8Qj6uG9Iw3yLTcF8qGa3/ TXUzmQ+rJhiXX/hgVXAn+fuDryMxKcdW+GgzG1DhpTgCX1W9xM6xyuMJ4MXD/V6jU9 3B9wkqMvk8xqw== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Alexandru Lazar , Akinobu Mita , Alexandru Tachici , Antoniu Miclaus , Charles-Antoine Couret , Cosmin Tanislav , David Lechner , Ivan Mikhaylov , Jacopo Mondi , Jean-Baptiste Maneyrol , Lars-Peter Clausen , Marcelo Schmitt , =?utf-8?q?M=C3=A5rten_Lindahl?= , Matt Ranostay , 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 v2 25/92] iio: adc: max1118: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:05 +0100 Message-Id: <20220508175712.647246-26-jic23@kernel.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220508175712.647246-1-jic23@kernel.org> References: <20220508175712.647246-1-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_DMA_MINALIGN definition. Fixes: a9e9c7153e96 ("iio: adc: add max1117/max1118/max1119 ADC driver") Signed-off-by: Jonathan Cameron Cc: Akinobu Mita Acked-by: Nuno Sá --- drivers/iio/adc/max1118.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/max1118.c b/drivers/iio/adc/max1118.c index a41bc570be21..75ab57d9aef7 100644 --- a/drivers/iio/adc/max1118.c +++ b/drivers/iio/adc/max1118.c @@ -42,7 +42,7 @@ struct max1118 { s64 ts __aligned(8); } scan; - u8 data ____cacheline_aligned; + u8 data __aligned(IIO_DMA_MINALIGN); }; #define MAX1118_CHANNEL(ch) \