From nobody Mon Sep 29 20:18:44 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 A0B69C25B0D for ; Tue, 16 Aug 2022 04:34:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230173AbiHPEea (ORCPT ); Tue, 16 Aug 2022 00:34:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230088AbiHPEdv (ORCPT ); Tue, 16 Aug 2022 00:33:51 -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 41FA04BD19; Mon, 15 Aug 2022 13:24:43 -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 B3ABBB8119A; Mon, 15 Aug 2022 20:24:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0492AC433C1; Mon, 15 Aug 2022 20:24:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595080; bh=LqalBsGRa1zu1E5rLHt1XDvDX+e1QcLKHZ/M7/gLjvo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IYspbKCjF1QbY17Xnt7J2p8R3LBIkkZbVZEiGoRd6Kv5jnxvMd4LjPhSTXa4dTPqa GbTgQPsdJ2L6VfUJ56NZ0iZWqVJclt84ltuYTDH/6GyhI8Dl3pJL2XoJjSvnu/u6i2 tPw1WsoX2QMW8Z0QpRmIZYmUYxJN88XKmY9wNokc= 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 0649/1157] iio: adc: hi8435: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:05 +0200 Message-Id: <20220815180505.698634919@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 48e4ae96b0b10f93de23b86fd34e573c44e95ab3 ] ____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: 72aa29ce0a59 ("iio: adc: hi8435: Holt HI-8435 threshold detector") Signed-off-by: Jonathan Cameron Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-21-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/hi8435.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/hi8435.c b/drivers/iio/adc/hi8435.c index 8eb0140df133..771fa12bdc02 100644 --- a/drivers/iio/adc/hi8435.c +++ b/drivers/iio/adc/hi8435.c @@ -49,7 +49,7 @@ struct hi8435_priv { =20 unsigned threshold_lo[2]; /* GND-Open and Supply-Open thresholds */ unsigned threshold_hi[2]; /* GND-Open and Supply-Open thresholds */ - u8 reg_buffer[3] ____cacheline_aligned; + u8 reg_buffer[3] __aligned(IIO_DMA_MINALIGN); }; =20 static int hi8435_readb(struct hi8435_priv *priv, u8 reg, u8 *val) --=20 2.35.1