From nobody Mon Sep 29 20:17:20 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 ED6E5C25B0D for ; Tue, 16 Aug 2022 00:14:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356807AbiHPAMQ (ORCPT ); Mon, 15 Aug 2022 20:12:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41610 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356686AbiHPACt (ORCPT ); Mon, 15 Aug 2022 20:02:49 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6180B169C7A; Mon, 15 Aug 2022 13:24:08 -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 D3628B8119A; Mon, 15 Aug 2022 20:24:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A984DC433C1; Mon, 15 Aug 2022 20:24:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595045; bh=AX2ZAm9ioak9DLDdbaSI+mHlOTJ/08BFG9uYSEzNwnU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LQK2+r6QwrZX1EQimBVxevuRVbhfojq1ATBU3SAAs/M4cV8viIq4lc2k5WCCzUjns 0xIaST+4WZSS8dUg5lfCWzjVMUq28Vc112dnQpGIEsuHn3FfAZWAQlHLSOQMVH0qvX IAVkqh4VgEjFUUrrvM2Dmda2dlSPgbU5wk5VKVDc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0639/1157] iio: adc: ad7280a: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 19:59:55 +0200 Message-Id: <20220815180505.276542465@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 4e2008429588b857bbc13d048b67b931a8d84816 ] ____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: 003f1d48de52 ("staging:iio:adc:ad7280a: Split buff[2] into tx and rx= parts") Signed-off-by: Jonathan Cameron Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-11-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/ad7280a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7280a.c b/drivers/iio/adc/ad7280a.c index 3bdf3d9422f2..d4a4e15c8244 100644 --- a/drivers/iio/adc/ad7280a.c +++ b/drivers/iio/adc/ad7280a.c @@ -183,7 +183,7 @@ struct ad7280_state { unsigned char cb_mask[AD7280A_MAX_CHAIN]; struct mutex lock; /* protect sensor state */ =20 - __be32 tx ____cacheline_aligned; + __be32 tx __aligned(IIO_DMA_MINALIGN); __be32 rx; }; =20 --=20 2.35.1