From nobody Mon Sep 29 22:44:50 2025 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 3F317C25B0D for ; Tue, 16 Aug 2022 04:36:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231195AbiHPEga (ORCPT ); Tue, 16 Aug 2022 00:36:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58024 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230129AbiHPEf3 (ORCPT ); Tue, 16 Aug 2022 00:35:29 -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 7E2579AFFA; Mon, 15 Aug 2022 13:26:19 -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 2955CB80EAD; Mon, 15 Aug 2022 20:26:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64F90C433D6; Mon, 15 Aug 2022 20:26:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595176; bh=DnZBMLmbY0UB+P699kmZk580RYZWU16RG1msKGGlh8g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nyhUfH/0lHPtzAzGs0PXzzZ/Zv7xa4a9FYfUqgX5vzlD5VLxHNpvFyvlrsmyWNB4K 4msAJImrVND48DY5cpJChbFCBXIHQg0TmsGLcW35NsN/Hr3KM5EAnPrJ9LALkNMKxu u1S3ngaeAnA1jbPU859Zmnf3NZnWv0BrpjQC4WU0= 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 5.19 0654/1157] iio: adc: max1118: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:10 +0200 Message-Id: <20220815180505.906251258@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: quoted-printable 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 S=C3=A1 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; =20 - u8 data ____cacheline_aligned; + u8 data __aligned(IIO_DMA_MINALIGN); }; =20 #define MAX1118_CHANNEL(ch) \ --=20 2.35.1