From nobody Mon Sep 29 20:16:05 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 C3C3DC25B0D for ; Tue, 16 Aug 2022 04:35:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230448AbiHPEfM (ORCPT ); Tue, 16 Aug 2022 00:35:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56490 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230105AbiHPEe2 (ORCPT ); Tue, 16 Aug 2022 00:34:28 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99E459FA86; Mon, 15 Aug 2022 13:28:01 -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 C20BE61135; Mon, 15 Aug 2022 20:28:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ABFDAC433D7; Mon, 15 Aug 2022 20:27:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595280; bh=GTIZkC3zKQWu+Bct/VE1yaL9YF7rpRhed2b2ZCRgiOQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zHKEaECCmG6nenCjcBHLLZHkE9Q89baBxjArUQ8bNcvz2nu9+lC8RPTJhrQLetEbT OkLj3df01Mh7JbjkiS3C/mnUzeJtN8PZXlWNmDYa5dS/0vg1+gNgww+B3PRgEVXFaK xsCydfhtvWor39/AhjMBphGFTfRPi8X6EMANyAZw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Matt Ranostay , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0714/1157] iio: proximity: as3935: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:01:10 +0200 Message-Id: <20220815180508.089123176@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 2386c0f8c5b740873a4b9126c3706601b127fe22 ] ____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: 24ddb0e4bba4 ("iio: Add AS3935 lightning sensor support") Signed-off-by: Jonathan Cameron Cc: Matt Ranostay Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-87-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/proximity/as3935.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c index 67891ce2bd09..ebc95cf8f5f4 100644 --- a/drivers/iio/proximity/as3935.c +++ b/drivers/iio/proximity/as3935.c @@ -65,7 +65,7 @@ struct as3935_state { u8 chan; s64 timestamp __aligned(8); } scan; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); }; =20 static const struct iio_chan_spec as3935_channels[] =3D { --=20 2.35.1