From patchwork Sun May 8 17:55:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842586 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 CD2A4C433EF for ; Sun, 8 May 2022 19:13:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230355AbiEHTQ4 (ORCPT ); Sun, 8 May 2022 15:16:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239101AbiEHRyY (ORCPT ); Sun, 8 May 2022 13:54:24 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 277F52DC3 for ; Sun, 8 May 2022 10:50:33 -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 B84A8B80E5B for ; Sun, 8 May 2022 17:50:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DA553C385B0; Sun, 8 May 2022 17:50:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032230; bh=2HVFKTmhz6gwZvJxBJ/IQGIhqeTXfcKyjspXKOhOF6U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LF+PIxJoz18B2B0UkK5ba3e0bXkMJgk7AZFnUpYzNKq5iNuwz4B/9hfxS6eU8bfxg BbB3Z1hdpV1llDgdmVyfwhPCTHlSwzduA5tuklVFdfxhKM+OOhIkUBnsF+526bpqz0 wO6aNy9Ba7C7NA1e6AGep51VxaSL17+6KebhypJU6E8fSFU2Hod9rKYJ0DQTC1tdXq J1TR0JSpcvCmQZI5LiEgn3PpgxJnfo+eryHsk2y+r2VDegE1+zhbg1MOUbcNTc6Nic nSdi2Qemrap/bBF3m7z6BzcSSbGnmPqrnmp3PFFqbwLHmZZy7N238NK5HKNrPnXQP1 lmZ6SV+JqzSsQ== 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 11/92] iio: adc: ad7292: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:55:51 +0100 Message-Id: <20220508175712.647246-12-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: 506d2e317a0a ("iio: adc: Add driver support for AD7292") Signed-off-by: Jonathan Cameron Cc: Marcelo Schmitt Acked-by: Marcelo Schmitt Acked-by: Nuno Sá --- 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..92c68d467c50 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_DMA_MINALIGN); u8 d8[2]; };