From nobody Mon Sep 29 20:16:03 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 00DE1C25B0D for ; Tue, 16 Aug 2022 04:37:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230511AbiHPEhW (ORCPT ); Tue, 16 Aug 2022 00:37:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230129AbiHPEgf (ORCPT ); Tue, 16 Aug 2022 00:36:35 -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 AA9614D4CD; Mon, 15 Aug 2022 13:26:37 -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 64A2FB81197; Mon, 15 Aug 2022 20:26:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ACC8FC433C1; Mon, 15 Aug 2022 20:26:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595195; bh=fkS7l4Mv2LRZIz6RMO+Qh8fV/b9u3krpLRZn04lzIRY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Xarz8mTnVQeLOQGw/jGCM3+YkwukjbapaGvWJLyDz81fFW+oQIkNSPKe22Hrdu9nA UNc5EbUuRXhrHpqpreG8S2geptPNqBMd2tH2lppQdeUDUK8nZrRkASdR2LVGgpPA8r EL0QFN/xP+NnVAQh+uHu1O6qPvQeWskNunU2MXrM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Alexandru Lazar , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0655/1157] iio: adc: max1241: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:11 +0200 Message-Id: <20220815180505.936538683@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 9d7019e43ee67a48cef63f8f23f002233064d390 ] ____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: 8a80a71d9020 ("iio: adc: Add MAX1241 driver") Signed-off-by: Jonathan Cameron Acked-by: Alexandru Lazar Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-27-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/max1241.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/max1241.c b/drivers/iio/adc/max1241.c index a5afd84af58b..a815ad1f6913 100644 --- a/drivers/iio/adc/max1241.c +++ b/drivers/iio/adc/max1241.c @@ -26,7 +26,7 @@ struct max1241 { struct regulator *vref; struct gpio_desc *shutdown; =20 - __be16 data ____cacheline_aligned; + __be16 data __aligned(IIO_DMA_MINALIGN); }; =20 static const struct iio_chan_spec max1241_channels[] =3D { --=20 2.35.1