From nobody Fri Oct 24 20:28:44 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 55736C28B2C for ; Mon, 15 Aug 2022 21:42:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349414AbiHOVlG (ORCPT ); Mon, 15 Aug 2022 17:41:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348744AbiHOVhS (ORCPT ); Mon, 15 Aug 2022 17:37:18 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C1D6D58; Mon, 15 Aug 2022 12:27:03 -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 DCD356102C; Mon, 15 Aug 2022 19:27:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CF070C433D6; Mon, 15 Aug 2022 19:27:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591622; bh=XaJ+R22eoV2RTw46FJeM8UhmYTLW/EGQcBQ5EsH8yz4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UrQG9Vb2XENmHOQ3eEXg97rmeZXJJAI8U8D4uOsmenccYQqhmgZ0ideEgTj8lJ3LP zeKZNTfiFLWgX39n4dP7wd1Cj4uTrgZnBHclSneCBoj62onW+ugJclDv9YWE8KjcmW G6uldyIiAiknPFjui0tkFeZGJbWvm7cWvz8Gf69U= 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 5.18 0639/1095] iio: dac: ad5791: Fix alignment for DMA saftey Date: Mon, 15 Aug 2022 20:00:38 +0200 Message-Id: <20220815180455.835723881@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180429.240518113@linuxfoundation.org> References: <20220815180429.240518113@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 b2d5e9de77c8774a5a6cff59d928f2fa38cbc642 ] ____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: 791bb52a0cd2 ("iio:ad5791: Do not store transfer buffers on the stac= k") Signed-off-by: Jonathan Cameron Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-56-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/dac/ad5791.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c index 2b14914b4050..ee7e89774d9d 100644 --- a/drivers/iio/dac/ad5791.c +++ b/drivers/iio/dac/ad5791.c @@ -95,7 +95,7 @@ struct ad5791_state { union { __be32 d32; u8 d8[4]; - } data[3] ____cacheline_aligned; + } data[3] __aligned(IIO_DMA_MINALIGN); }; =20 enum ad5791_supported_device_ids { --=20 2.35.1