From patchwork Sun May 8 17:56:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842581 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 64C81C433F5 for ; Sun, 8 May 2022 19:12:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229541AbiEHTQo (ORCPT ); Sun, 8 May 2022 15:16:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39906 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239757AbiEHR7f (ORCPT ); Sun, 8 May 2022 13:59:35 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 193132182 for ; Sun, 8 May 2022 10:55:45 -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 C6E2BB80D48 for ; Sun, 8 May 2022 17:55:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 433D0C385B0; Sun, 8 May 2022 17:55:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032542; bh=wRlsZPG0wuGf1m6i/rxMBpzQzRJ34TodHLxOPJBKeQM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YOrbsCxUZ4DCUUtYnH7H0tN4xRhNewZD9uNYvCIFUinbojRk1W8LcX5ltF3Jcypp7 TUQA+SudaY4BCq20zCiBSo+nCVamU9CVelp2PfjCB3Kto3PEvr4kTTJLdGNBDImxWQ Z5joouH69zJA1EjjSh5jkOWTTrshcZQJQVUYoc42diALvQQpOHmnPbKWwactJllXVV dtYveSA2JcDRO7H0UCztHEfyodNIRtn6QESYxb8yXQDxCSxFbJTNd3qUfk2abJJDNW 3/L6j9/gDI+S1Wmh2eg8jBJ6NNR37T3wBxfWjka0S3TJzD5hfOHLqaa3BXhq+6r+c3 jHYAvqj0hYKjw== 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 53/92] iio: dac: ad5766: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:33 +0100 Message-Id: <20220508175712.647246-54-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: fd9373e41b9b ("iio: dac: ad5766: add driver support for AD5766") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá --- drivers/iio/dac/ad5766.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad5766.c b/drivers/iio/dac/ad5766.c index 43189af2fb1f..899894523752 100644 --- a/drivers/iio/dac/ad5766.c +++ b/drivers/iio/dac/ad5766.c @@ -123,7 +123,7 @@ struct ad5766_state { u32 d32; u16 w16[2]; u8 b8[4]; - } data[3] ____cacheline_aligned; + } data[3] __aligned(IIO_DMA_MINALIGN); }; struct ad5766_span_tbl {