From patchwork Sun May 8 17:56:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842668 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 70734C4167D for ; Sun, 8 May 2022 19:17:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231395AbiEHTTC (ORCPT ); Sun, 8 May 2022 15:19:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239204AbiEHR5M (ORCPT ); Sun, 8 May 2022 13:57:12 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73541DFEA for ; Sun, 8 May 2022 10:53:21 -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 1D6A0B80E49 for ; Sun, 8 May 2022 17:53:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 558A5C385A4; Sun, 8 May 2022 17:53:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032398; bh=ppdFFitxky0oV75ZjVXbJURJ5hwSRSzdSXWecJilw2M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ocgGrGNVX6xP+urWXyqXGcmYw9EiftWjuwIX4oKsOBEFFtqvtFWt44a1pj8cBToZZ SEqooTbz0cNqQt0fimpS/sO7IOBxh82rFM0MNribIfDz1XPWhgi3J9EchCtWYKGjXe 2oR5AevJAVIa9afqBByZgSQqm23jbP5d25cberYRAnuo3VTNomgDVJYm1YHW9y7Yr8 UdoShdlj1d76bIVF6rOo6YI1MNCAH4QpY1wxmIvw2sFsqjekKCQazlaWXTDzA6oQhJ Z0dfHjZtlTHlGMSAUp59jWI7vv934T0FYiUSwKLYl4Ch+Af+J7F5XvvVO/S2jRXsLu 0cOMRd71ZVKYA== 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 34/92] iio: adc: ti-ads124s08: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:14 +0100 Message-Id: <20220508175712.647246-35-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: e717f8c6dfec ("iio: adc: Add the TI ads124s08 ADC code") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá --- drivers/iio/adc/ti-ads124s08.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti-ads124s08.c b/drivers/iio/adc/ti-ads124s08.c index 767b3b634809..64833156c199 100644 --- a/drivers/iio/adc/ti-ads124s08.c +++ b/drivers/iio/adc/ti-ads124s08.c @@ -106,7 +106,7 @@ struct ads124s_private { * timestamp is maintained. */ u32 buffer[ADS124S08_MAX_CHANNELS + sizeof(s64)/sizeof(u32)] __aligned(8); - u8 data[5] ____cacheline_aligned; + u8 data[5] __aligned(IIO_DMA_MINALIGN); }; #define ADS124S08_CHAN(index) \