From mboxrd@z Thu Jan 1 00:00:00 1970 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 73B9DC25B0E for ; Tue, 16 Aug 2022 00:14:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357458AbiHPANi (ORCPT ); Mon, 15 Aug 2022 20:13:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47834 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357134AbiHPADs (ORCPT ); Mon, 15 Aug 2022 20:03:48 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A6BC16DC79; Mon, 15 Aug 2022 13:25:34 -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 065D3B811A2; Mon, 15 Aug 2022 20:25:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 36462C4314B; Mon, 15 Aug 2022 20:25:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595131; bh=aXWX4uIi75Axp8sz2ki1tJ0BTgn2RakWK213rMs3cX8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vyVRKY7I/e0XHHwp1oh55vokzFrT/LlP6LiSuq97UOC+ryerC1EJFgg6YqJ+4tKTA a9k+UFzlxhXjbBpALsigOk9mde2bUJvHI9wFANr+ygxcpMfT/ituktnqj92ZNEvwE7 0h13fIhp6gLMMdKssJElzJueTWafY0P32uuRtEyE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0667/1157] iio: adc: ti-ads8688: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:23 +0200 Message-Id: <20220815180506.395174373@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180439.416659447@linuxfoundation.org> References: <20220815180439.416659447@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jonathan Cameron [ Upstream commit a2105d87eb8eb03591515df10102e04a1c9e0e46 ] ____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: 3e87e7838328 ("iio: adc: Add TI ADS8688") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-39-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/ti-ads8688.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c index 708cca0a63be..ef06a897421a 100644 --- a/drivers/iio/adc/ti-ads8688.c +++ b/drivers/iio/adc/ti-ads8688.c @@ -71,7 +71,7 @@ struct ads8688_state { union { __be32 d32; u8 d8[4]; - } data[2] ____cacheline_aligned; + } data[2] __aligned(IIO_DMA_MINALIGN); }; enum ads8688_id { -- 2.35.1