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 X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E3E1C67863 for ; Mon, 22 Oct 2018 12:08:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 534AF2064E for ; Mon, 22 Oct 2018 12:08:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="st5nzmzv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 534AF2064E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728793AbeJVU1J (ORCPT ); Mon, 22 Oct 2018 16:27:09 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:34443 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727194AbeJVU1J (ORCPT ); Mon, 22 Oct 2018 16:27:09 -0400 Received: by mail-pl1-f193.google.com with SMTP id f10-v6so1198347plr.1; Mon, 22 Oct 2018 05:08:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=TNPWzi16BaQIPNRhNlYjjFyzyS4QT2S9QCHuJW2z5/s=; b=st5nzmzvAfSCHRG7hJ8jc1EymC/nTBauIlsmhUzE1sDbW0V5D/rJ6Ne/lsYT/BBTQn BOQKdN+XkH/hxtJbH/14Zw+vhsCGHaIxdQkreB1SSFbWt4OCRSdecM94+iYDbk2ena93 LBDLMske88TJ9QxO89R6uOxQN3Phk47L6pCUHHXux8j1uO5wiKtiidCWDGoeI+5br5ef Hpw9UfgLzcFyGgDydavM3yQHiS3EgF0azrqJCSueHwU/JA9e+b5Fe6KciELzABUnYsCu NExcwpUVSTtkRtYap+u0yfy2twHRbvJbeOJTAMXYtJjuIPJT9HGub6+eBiVNnBbullHf +2rg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=TNPWzi16BaQIPNRhNlYjjFyzyS4QT2S9QCHuJW2z5/s=; b=KZHRANxoEk2H8w8JaDamolJ59+1mGpwDFRdNrY+kc3rolB1DB3unaKoaNJ8ar6aeAD CD1zU1mHZ+6bss4MzW5rFfL+yLSFmqupz433gkJ3KI2wB+WjcpOpt7QCpsc81mgBbLBK hHyAIn0khnBfWClrKovOJAcAsVHFyfUtdxBmJjmk0vm7kb9mGz8hcdhrsReeRtS8YM1c J1chCUPyiRS684DNekoLbaXD83tUkaGjdZTdYqRhbhm7tjJMokyQgZbfE8gMlJQhCq9i VO314m2NAIIWj4vRQB7t6G4FwWFz90CV8CHI+xwBHK7i+he2GdliFHD3Ela7Tg7Y4Pcv PdzA== X-Gm-Message-State: AGRZ1gLvpoH4hNojcGvld71X1ge4D0gSNmxaMb7iGmtsvRCQw1dPHrAy FOdFvUu/HOdB06WIMrvTiqGO8O7x X-Google-Smtp-Source: AJdET5fkVOPdk+1afuX1HxhwZ7kJh18sNmBVzNV0G3CgNX4y035eFx796p+fgbHpPEHZzSNuip5h2Q== X-Received: by 2002:a17:902:748a:: with SMTP id h10-v6mr6888565pll.187.1540210131114; Mon, 22 Oct 2018 05:08:51 -0700 (PDT) Received: from localhost.localdomain ([2001:268:c0a5:1904:c698:f9ce:cdd:454c]) by smtp.gmail.com with ESMTPSA id k70-v6sm39081926pfc.76.2018.10.22.05.08.48 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Oct 2018 05:08:50 -0700 (PDT) From: William Breathitt Gray To: linus.walleij@linaro.org Cc: linux@rasmusvillemoes.dk, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, William Breathitt Gray Subject: [PATCH 1/6] gpio: 104-dio-48e: Mask read inputs for get_multiple Date: Mon, 22 Oct 2018 21:08:59 +0900 Message-Id: X-Mailer: git-send-email 2.19.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch masks the read inputs with the word mask in order to ensure only requested input states are returned in the bits array. Suggested-by: Rasmus Villemoes Signed-off-by: William Breathitt Gray --- drivers/gpio/gpio-104-dio-48e.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c index 9c4e07fcb74b..92c8f944bf64 100644 --- a/drivers/gpio/gpio-104-dio-48e.c +++ b/drivers/gpio/gpio-104-dio-48e.c @@ -222,7 +222,7 @@ static int dio48e_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask, port_state = inb(dio48egpio->base + ports[i]); /* store acquired bits at respective bits array offset */ - bits[word_index] |= port_state << word_offset; + bits[word_index] |= (port_state << word_offset) & word_mask; } return 0; -- 2.19.1