From nobody Mon Sep 29 20:19:35 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 D486DC25B0D for ; Tue, 16 Aug 2022 04:37:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230249AbiHPEhC (ORCPT ); Tue, 16 Aug 2022 00:37:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230138AbiHPEgW (ORCPT ); Tue, 16 Aug 2022 00:36:22 -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 3EC279C8CF; Mon, 15 Aug 2022 13:26:33 -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 A4DE561089; Mon, 15 Aug 2022 20:26:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AFB9FC433C1; Mon, 15 Aug 2022 20:26:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595192; bh=LGftA0U8NBZTIfcn4KRWoipw2faNgjkzfJIOn+gHiqU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X/DTN9i4HqpkNq99YGjzl2KzHNtg+TRZecFm53lGOCXCq+mt1uvY1FLN1/zWXMjZ5 nd2l1n7MBjhK3IpUCi2jozWZrPXjGSFkmbNGQTb44eORKRKnnEGFc74BkWvB2CWIeK /aHJSlrHqBbw5aKUW0UVo3X8XgFTtEdvsIb6VfDs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Antoniu Miclaus , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0685/1157] iio: dac: ad7293: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:41 +0200 Message-Id: <20220815180507.041859030@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 8482468b30bdb16d4a764f995d7a63d94fa0cf40 ] ____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: 0bb12606c05f ("iio:dac:ad7293: add support for AD7293") Signed-off-by: Jonathan Cameron Cc: Antoniu Miclaus Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-57-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/dac/ad7293.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad7293.c b/drivers/iio/dac/ad7293.c index 59a38ca4c3c7..06f05750d921 100644 --- a/drivers/iio/dac/ad7293.c +++ b/drivers/iio/dac/ad7293.c @@ -144,7 +144,7 @@ struct ad7293_state { struct regulator *reg_avdd; struct regulator *reg_vdrive; u8 page_select; - u8 data[3] ____cacheline_aligned; + u8 data[3] __aligned(IIO_DMA_MINALIGN); }; =20 static int ad7293_page_select(struct ad7293_state *st, unsigned int reg) --=20 2.35.1