From patchwork Tue May 3 08:58:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12835327 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 14C1FC433F5 for ; Tue, 3 May 2022 08:56:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231273AbiECI7r (ORCPT ); Tue, 3 May 2022 04:59:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38230 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229854AbiECI7m (ORCPT ); Tue, 3 May 2022 04:59:42 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D264236141 for ; Tue, 3 May 2022 01:56:10 -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 6E5B961329 for ; Tue, 3 May 2022 08:56:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5DF60C385B0; Tue, 3 May 2022 08:56:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651568169; bh=L8nwN4eo/PXE8EV06YujWPh7wxwvltSpvUWHK0TkhTw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fg6pO6p9ud4LZHlxKliJbut7xPHgIRwg+zEhpNRSsQgMd1lbJPdxEZacLVxE8Vnnp Ne01uUsSEWZ3mxJRQMReQR36uf91dw4mbGQHQf2Hd1zrFM05CcmxgbcSAVk94m57oA GHxxIk4rJf+RzLZniA7cKoR68O82KBNw0YKadZ4Nd/EBgbR7m4O5fpEs9sksTiTnB1 LhEnlZ02M9aOP6yKLu208Mmlr7XPZX5PW/tkkNt0JWQ89uDtAhbRujPcpm711HLGvB fjhsxEOeWJ+3WGaoa/KxRyPSDN2fOy59Wx3tB13y8bwoNHJo+stz4Latnt0Gtnk4Hs R7wMHyi+ysPBA== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Akinobu Mita , Alexandru Lazar , Alexandru Tachici , Antoniu Miclaus , Charles-Antoine Couret , Cosmin Tanislav , Cristian Pop , David Lechner , Ivan Mikhaylov , Jacopo Mondi , Jean-Baptiste Maneyrol , Lars-Peter Clausen , Marcelo Schmitt , =?utf-8?q?M=C3=A5rten_Lindahl?= , 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 28/92] iio: adc: ti-adc0832: Fix alignment for DMA safety Date: Tue, 3 May 2022 09:58:31 +0100 Message-Id: <20220503085935.1533814-29-jic23@kernel.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220503085935.1533814-1-jic23@kernel.org> References: <20220503085935.1533814-1-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_ALIGN definition. Fixes: efc945fb729c ("iio: adc: add support for ADC0831/ADC0832/ADC0834/ADC0838 chips") Signed-off-by: Jonathan Cameron Cc: Akinobu Mita --- drivers/iio/adc/ti-adc0832.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c index fb5e72600b96..0a18e63e70cd 100644 --- a/drivers/iio/adc/ti-adc0832.c +++ b/drivers/iio/adc/ti-adc0832.c @@ -36,7 +36,7 @@ struct adc0832 { */ u8 data[24] __aligned(8); - u8 tx_buf[2] ____cacheline_aligned; + u8 tx_buf[2] __aligned(IIO_ALIGN); u8 rx_buf[2]; };