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 9860EC00140 for ; Mon, 15 Aug 2022 21:38:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348925AbiHOViB (ORCPT ); Mon, 15 Aug 2022 17:38:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348952AbiHOVgK (ORCPT ); Mon, 15 Aug 2022 17:36:10 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C058552FCB; Mon, 15 Aug 2022 12:25:33 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 78AE06100A; Mon, 15 Aug 2022 19:25:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B977C433D7; Mon, 15 Aug 2022 19:25:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591532; bh=DnZBMLmbY0UB+P699kmZk580RYZWU16RG1msKGGlh8g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qk7mnq8KgzkVK0vICcmVEq0bnbP4eRMIlDo0atzHP8wwrYIWM67Qz/0YmutD5LtlU vKgcYdr2o+/4DwMmV67OyxHVlbawKZkB3xC4QXNZ8CjJwuMADepf6huPfhrINg1sU1 +dKDuKNcvRAGN6nmUXWSoJz9zuz3maXzZOTPWgRI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Akinobu Mita , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.18 0609/1095] iio: adc: max1118: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:08 +0200 Message-Id: <20220815180454.708500910@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180429.240518113@linuxfoundation.org> References: <20220815180429.240518113@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 f746ab0bac5b335b09143dcd01db6f9f26d0c9ec ] ____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: a9e9c7153e96 ("iio: adc: add max1117/max1118/max1119 ADC driver") Signed-off-by: Jonathan Cameron Cc: Akinobu Mita Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-26-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/max1118.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/max1118.c b/drivers/iio/adc/max1118.c index a41bc570be21..75ab57d9aef7 100644 --- a/drivers/iio/adc/max1118.c +++ b/drivers/iio/adc/max1118.c @@ -42,7 +42,7 @@ struct max1118 { s64 ts __aligned(8); } scan; - u8 data ____cacheline_aligned; + u8 data __aligned(IIO_DMA_MINALIGN); }; #define MAX1118_CHANNEL(ch) \ -- 2.35.1