From mboxrd@z Thu Jan 1 00:00:00 1970 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 A2D4FC25B0E for ; Mon, 15 Aug 2022 21:42:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349387AbiHOVlF (ORCPT ); Mon, 15 Aug 2022 17:41:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40486 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348737AbiHOVhQ (ORCPT ); Mon, 15 Aug 2022 17:37:16 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02206398; Mon, 15 Aug 2022 12:27:00 -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 939FA610A4; Mon, 15 Aug 2022 19:26:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9DE2BC433D6; Mon, 15 Aug 2022 19:26:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591619; bh=hV6Frwkr598I9q+vasMT+TjrxpsQwchMtgkxbByYxAM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y/1umAvLlmcKlIJnK5CBSA0xJcFjFbtn70qOKaJ62bfSSR/A67MJ1foaZeG5g8gpw 5AxQ9UMqTtg8P5U+8XzigSyh37Wbb/WvR5sE4QpWr+PrPKMOxsjhzEpMOq0G1CwQq6 5Jq+trWjMAndnuVwzFczZszTxulXHVLsDeD7glwA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Alexandru Tachici , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.18 0638/1095] iio: dac: ad5770r: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:37 +0200 Message-Id: <20220815180455.804433327@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: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jonathan Cameron [ Upstream commit 27f2261d16d01858b8e5baca5a1a515b040429c4 ] ____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: cbbb819837f6 ("iio: dac: ad5770r: Add AD5770R support") Signed-off-by: Jonathan Cameron Cc: Alexandru Tachici Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-55-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/dac/ad5770r.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad5770r.c b/drivers/iio/dac/ad5770r.c index 7e2fd32e993a..f66d67402e43 100644 --- a/drivers/iio/dac/ad5770r.c +++ b/drivers/iio/dac/ad5770r.c @@ -140,7 +140,7 @@ struct ad5770r_state { bool ch_pwr_down[AD5770R_MAX_CHANNELS]; bool internal_ref; bool external_res; - u8 transf_buf[2] ____cacheline_aligned; + u8 transf_buf[2] __aligned(IIO_DMA_MINALIGN); }; static const struct regmap_config ad5770r_spi_regmap_config = { -- 2.35.1