From patchwork Sun May 8 17:56:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842670 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 9469EC35278 for ; Sun, 8 May 2022 19:17:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231657AbiEHTTF (ORCPT ); Sun, 8 May 2022 15:19:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40578 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236057AbiEHSBo (ORCPT ); Sun, 8 May 2022 14:01:44 -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 9EE85558C for ; Sun, 8 May 2022 10:57:53 -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 3AAF16127D for ; Sun, 8 May 2022 17:57:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 67ECFC385AC; Sun, 8 May 2022 17:57:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032672; bh=ehkdyk1L11u4OWYtaku2Cm5Jmsv1a9e69aPy5nrsSEM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qin3vyr5A2FxFQ2Suhfl6eWxwY/lDCaoGidoBfjRwo45lI/uR5CUmiGA3pQz+3wKn 4l9ucYmbEJmCjHHcKGfGrp1FL39hQOHrspL5YpgOZUgLeDN6wg2KQkos+e22EUrWEx yus5oEEFVBmY8ifMs9LIrn20vV6dTWpTRPAevfU1tPF3zcSHpJurw3HnAqVYJKbadL f/3hDKUQb1smgSo++yOg+Sef6sVDoj3+cfgfEQHZPJ+SfA5xjjPeK76pC7Mvbmocuu qgOQpHhVu6RAN4h6dbGZiyrR/4M+haO9KiKutnJJOJErw+weQRB3eXHAX46tWyXLfE 8tRltpnLXkUqQ== 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 70/92] iio: frequency: admv4420: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:50 +0100 Message-Id: <20220508175712.647246-71-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: b59c04155901 ("iio: frequency: admv4420.c: Add support for ADMV4420") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá --- drivers/iio/frequency/admv4420.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/frequency/admv4420.c b/drivers/iio/frequency/admv4420.c index 51134aee8510..863ba8e98c95 100644 --- a/drivers/iio/frequency/admv4420.c +++ b/drivers/iio/frequency/admv4420.c @@ -113,7 +113,7 @@ struct admv4420_state { struct admv4420_n_counter n_counter; enum admv4420_mux_sel mux_sel; struct mutex lock; - u8 transf_buf[4] ____cacheline_aligned; + u8 transf_buf[4] __aligned(IIO_DMA_MINALIGN); }; static const struct regmap_config admv4420_regmap_config = {