From nobody Mon Sep 29 20:19:08 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 059F1C3F6B0 for ; Tue, 16 Aug 2022 00:17:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352949AbiHPAPy (ORCPT ); Mon, 15 Aug 2022 20:15:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355808AbiHPAG2 (ORCPT ); Mon, 15 Aug 2022 20:06:28 -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 5119C1709EE; Mon, 15 Aug 2022 13:28:36 -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 7B0386118B; Mon, 15 Aug 2022 20:28:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65460C433C1; Mon, 15 Aug 2022 20:28:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595314; bh=mBd1kGGckIEzMhN9FsabSK+70EQgSDap+PUTKHzSnVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pL7ZKGeMBynRpYl1OyOCQiQ/ZFQi+o1IQOmr9SJAlIr1vGN3cEFBhOvpFn1d1zeq2 dhLpe+T7awaZaWee4YPdPEuCw3rwdh9zzEXPCmtfw4OU1n0ZRZb+Lk+JRkqylH/KpV u/eiKjepRNN7+V650a05H1bbYWjsuuaF7pvkgp24= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Charles-Antoine Couret , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0692/1157] iio: dac: ti-dac7311: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:48 +0200 Message-Id: <20220815180507.318726898@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 3637c49ed54632d7c221af718d2d7b1d381d4b6e ] ____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: 7a02ef7907d8 ("iio:dac:ti-dac7311 Add driver for Texas Instrument DA= C7311") Signed-off-by: Jonathan Cameron Cc: Charles-Antoine Couret Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-64-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/dac/ti-dac7311.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ti-dac7311.c b/drivers/iio/dac/ti-dac7311.c index 4afc411725d9..7f89d2a52f49 100644 --- a/drivers/iio/dac/ti-dac7311.c +++ b/drivers/iio/dac/ti-dac7311.c @@ -52,7 +52,7 @@ struct ti_dac_chip { bool powerdown; u8 powerdown_mode; u8 resolution; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); }; =20 static u8 ti_dac_get_power(struct ti_dac_chip *ti_dac, bool powerdown) --=20 2.35.1