From nobody Mon Sep 29 22:44:03 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 72CE9C25B0D for ; Tue, 16 Aug 2022 04:37:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231381AbiHPEhg (ORCPT ); Tue, 16 Aug 2022 00:37:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57582 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231244AbiHPEgv (ORCPT ); Tue, 16 Aug 2022 00:36:51 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4CEC33378; Mon, 15 Aug 2022 13:26:43 -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 85927B8119A; Mon, 15 Aug 2022 20:26:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCFD1C433D7; Mon, 15 Aug 2022 20:26:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595201; bh=Cie5ZzNsVo95h6m7oSLL4Rw3+kDPsVt9/3cxcdnlirs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R3+/oN+UNFIFZkf8P/Uh9opMW5nd5ioPN3K4ZmzaGqFpriNCED+eJj+5ZnAdpmDwx FxIQCOepXu9uf3WQB8YSXQLOxIDHDFmFBdJrVc1LnsegULADSCeNhgXVylLQSC1vd9 NKHGx9ZzhNRJ08O3NkfzYDIRxEueL7INi4CBBg18= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Akinobu Mita , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0657/1157] iio: adc: ti-adc0832: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:13 +0200 Message-Id: <20220815180506.020027544@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 1e6bb81c23a84a078736a0f2a52bd765863e94ed ] ____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: efc945fb729c ("iio: adc: add support for ADC0831/ADC0832/ADC0834/ADC= 0838 chips") Signed-off-by: Jonathan Cameron Cc: Akinobu Mita Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-29-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/ti-adc0832.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c index fb5e72600b96..b11ce555ba3b 100644 --- a/drivers/iio/adc/ti-adc0832.c +++ b/drivers/iio/adc/ti-adc0832.c @@ -36,7 +36,7 @@ struct adc0832 { */ u8 data[24] __aligned(8); =20 - u8 tx_buf[2] ____cacheline_aligned; + u8 tx_buf[2] __aligned(IIO_DMA_MINALIGN); u8 rx_buf[2]; }; =20 --=20 2.35.1