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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 BB3EFECDE5F for ; Sat, 21 Jul 2018 13:00:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6FD1020856 for ; Sat, 21 Jul 2018 13:00:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GnkS5ef5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6FD1020856 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 S1728185AbeGUNuS (ORCPT ); Sat, 21 Jul 2018 09:50:18 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:39409 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728137AbeGUNuR (ORCPT ); Sat, 21 Jul 2018 09:50:17 -0400 Received: by mail-pg1-f194.google.com with SMTP id g2-v6so9026563pgs.6 for ; Sat, 21 Jul 2018 05:57:37 -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; bh=aMrz5T2+pyh6QUoBFvF5dt/tuQ53TEyQx+NdnoSXbbE=; b=GnkS5ef5c42FHlDqD39MBSx1MX+WPq6iN8UIjXJDWuoP/EnLfwSgKTUDwDKOmzMmfy Nn43o8SD5cgze6hkoW+NxapxVp1OC6eslMwvr/q+spMWPRR8gO3KIAwWvtq+9VYBFUL+ DQa59IujRr5OVbHCLaGHEHvx1jGHvbdM74fZGI0/M3UAayHmvYvJbos68pWyfB6/ff5v dOEmLmwDEa02W7v66ajMZgigWniJsAeDt3fK7hm+ALcBeyEMXuEawAy9ZSGUi3DUruR2 Df3+1LRt9kDfL418FV0DePI+NAMqE8ofDE5RXG2+OngrrjysOI8B3uU7svYhNAFEnPXa K/QA== 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; bh=aMrz5T2+pyh6QUoBFvF5dt/tuQ53TEyQx+NdnoSXbbE=; b=Vzao9kxBxwViClceZGvsDEpBUNiInvG6PWhsCPdG362Sl63Q7obN+jXSWPQqn2+zYK /A4O6UHNAU7DEcmRSlCbXBMp7JU7l6iVdG+aH9uYmO7CXxCF+JoI8P2i9NbN3Txkt+PT qRQ6bXMG0vY0lWoozbkPDaAZhAGKS0SKhY45wGx/YO+0vwq6RZnYPUfWhaK5uraFEzOs 0syXFNloZ7DrKHVjUaqTPpDZGyt7SXDP8NQLPLpXkJOdt+RizuxX4GdtRNDkcA92yv6c ++soPzI9Z+lNnWkvYVM0h1QqDhX8+sa2Mg6kXVOl2Xlhawr5Yy0Eob6YkIy/Rn+MVkUZ 7Y0w== X-Gm-Message-State: AOUpUlFJZKqXS6U0FrYh5pKVYLLucO9y03+EqkrnwpGYwGMl2Hw2S37E 2QG9xZaDw6HE3Y+tzZVl/jc= X-Google-Smtp-Source: AAOMgpeAn2ui5GIsLkaUEdLvZwdrNyOJhiCV08CLUskZhYyRJHxc0pfsAEF4WT7DyLZijKMyeBMziQ== X-Received: by 2002:a63:1e08:: with SMTP id e8-v6mr5504715pge.281.1532177856760; Sat, 21 Jul 2018 05:57:36 -0700 (PDT) Received: from toddpoynor2.mtv.corp.google.com ([2620:0:1000:3701:7d29:cd13:d903:7908]) by smtp.gmail.com with ESMTPSA id d19-v6sm1072542pfe.42.2018.07.21.05.57.35 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 21 Jul 2018 05:57:36 -0700 (PDT) From: Todd Poynor To: Rob Springer , John Joseph , Ben Chan , Greg Kroah-Hartman Cc: Zhongze Hu , Dmitry Torokhov , Guenter Roeck , devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, Todd Poynor Subject: [PATCH 02/14] staging: gasket: remove duplicate call to retrieve device callback Date: Sat, 21 Jul 2018 05:56:43 -0700 Message-Id: <20180721125713.88501-5-toddpoynor@gmail.com> X-Mailer: git-send-email 2.18.0.233.g985f88cf7e-goog In-Reply-To: <20180721125713.88501-1-toddpoynor@gmail.com> References: <20180721125713.88501-1-toddpoynor@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Todd Poynor gasket_handle_ioctl() calls gasket_get_ioctl_permissions_cb() twice; simplify the code and avoid duplicated work by fetching the callback pointer only once. Reported-by: Dmitry Torokhov Signed-off-by: Todd Poynor --- drivers/staging/gasket/gasket_ioctl.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/staging/gasket/gasket_ioctl.c b/drivers/staging/gasket/gasket_ioctl.c index 2e2c9b997093b..dbe9fdef0c268 100644 --- a/drivers/staging/gasket/gasket_ioctl.c +++ b/drivers/staging/gasket/gasket_ioctl.c @@ -55,14 +55,15 @@ long gasket_handle_ioctl(struct file *filp, uint cmd, void __user *argp) { struct gasket_dev *gasket_dev; unsigned long arg = (unsigned long)argp; + gasket_ioctl_permissions_cb_t ioctl_permissions_cb; int retval; gasket_dev = (struct gasket_dev *)filp->private_data; trace_gasket_ioctl_entry(gasket_dev->dev_info.name, cmd); - if (gasket_get_ioctl_permissions_cb(gasket_dev)) { - retval = gasket_get_ioctl_permissions_cb(gasket_dev)( - filp, cmd, argp); + ioctl_permissions_cb = gasket_get_ioctl_permissions_cb(gasket_dev); + if (ioctl_permissions_cb) { + retval = ioctl_permissions_cb(filp, cmd, argp); if (retval < 0) { trace_gasket_ioctl_exit(-EPERM); return retval; -- 2.18.0.233.g985f88cf7e-goog