From patchwork Mon Jul 12 06:11:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 472932 Delivered-To: patch@linaro.org Received: by 2002:a02:c94a:0:0:0:0:0 with SMTP id u10csp2663330jao; Sun, 11 Jul 2021 23:54:32 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwqcv7yX0p4f9P5YK6A2Zr8ErXClOSZhvncvES1ngSPNZHOpUOtn2+2N74NKiXZypoOKnFA X-Received: by 2002:a05:6402:2206:: with SMTP id cq6mr15204992edb.209.1626072752085; Sun, 11 Jul 2021 23:52:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1626072752; cv=none; d=google.com; s=arc-20160816; b=lbgQ8fmhOg2+3K3OO1ObSu4VaEfSbsAwoSRIlm7sDWQ5fZvM+Z0kxzfQNgliBINlOS iKEV+mFBqBqd7Rb5r82wS5sWZHZeQpLvHdsAO9yYjGmgtM/FaLrFPerLVviFxUaZMy1a hmwLSOOnM62t6gX+leysC6RUKEnTCQlTK3JpquSITP+xGqjei1/biYBBz3jrGSu9YABh Fi02gizURQnNvnDvvVQRwdCj4BGyhTCJ0boE3HyNVzhIMqJck9iGPcqfO6WBtmv5lVz6 leTR3ZG+CqufD0Ua3lrt4i+To3g1vrc9g4wSrOq6ROCftmXbXYZm0HS2oPVLLnLV4w7u 99zA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=8ajUAMEvi694p84lSUpwNJcsp9ywTNr3yuARgBItO9s=; b=juNgt2gbsdstpe8xe7bakea47rEJYVe4FnrlM73M9+a0B+4MJQHLeE5NQLJBHbMCVA eAPr9jAlO4IyvYsRuxMujhJzhYJjHlpGq8Y3BRlv9YqdPqCF0QOTT2itRW5ik60kstXo aSl7xB7SGUGqfgE1vnrDWa0JmCpfJBRT2lGl2dsruDgObbDKxek6ubwHKp0QwXWbDxm3 nmbH8KuT1c8igdF5heeQvFztP2GPT2zTh6B1clV6FLV4ifbhuHwtpK/xesCweKBCZ2Vr dRPITfLr/KdacguejaAqzvwhWqMGdiosAtA1ikOJtBuvTRl5K9tDD2XsvvggarhJ3hYS 6cdA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=o8agxLsH; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id r25si3440466edp.437.2021.07.11.23.52.31; Sun, 11 Jul 2021 23:52:32 -0700 (PDT) Received-SPF: pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=o8agxLsH; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240535AbhGLGxl (ORCPT + 12 others); Mon, 12 Jul 2021 02:53:41 -0400 Received: from mail.kernel.org ([198.145.29.99]:50628 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240338AbhGLGvm (ORCPT ); Mon, 12 Jul 2021 02:51:42 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2FE5161006; Mon, 12 Jul 2021 06:48:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626072497; bh=viCXNFNvlPbEBj8AIc4AR4ukiy7D927Ga/Q+qK0TVEk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=o8agxLsHA6WJgb8lRkU8MMNPwNZvbQ8Z1ZD3lEW99MwbfPmFlJP49QLI17eKytSbt qU6Cyc+yMyqfqFbBeDAqR+Rau+HUe21FfVPCOhx6hVZfQ/lw2reEvcw2Vfmvc+Cphb I5DRIzhrmF9x+j5pxN8+4rpvXYkWKJdAy2cRsbMw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Eugen Hristev , =?utf-8?q?Nuno_S=C3=A1?= , Sasha Levin Subject: [PATCH 5.10 515/593] iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Date: Mon, 12 Jul 2021 08:11:15 +0200 Message-Id: <20210712060948.756193907@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060843.180606720@linuxfoundation.org> References: <20210712060843.180606720@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jonathan Cameron [ Upstream commit 8f884758966259fa8c50c137ac6d4ce9bb7859db ] To make code more readable, use a structure to express the channel layout and ensure the timestamp is 8 byte aligned. Found during an audit of all calls of this function. Fixes: 5e1a1da0f8c9 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer support") Signed-off-by: Jonathan Cameron Cc: Eugen Hristev Reviewed-by: Nuno Sá Link: https://lore.kernel.org/r/20210613152301.571002-2-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/at91-sama5d2_adc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.30.2 diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index b917a4714a9c..b8139c435a4b 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -403,7 +403,8 @@ struct at91_adc_state { struct at91_adc_dma dma_st; struct at91_adc_touch touch_st; struct iio_dev *indio_dev; - u16 buffer[AT91_BUFFER_MAX_HWORDS]; + /* Ensure naturally aligned timestamp */ + u16 buffer[AT91_BUFFER_MAX_HWORDS] __aligned(8); /* * lock to prevent concurrent 'single conversion' requests through * sysfs.