From patchwork Sun Oct 21 19:59:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 10651423 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EFDC2109C for ; Sun, 21 Oct 2018 20:00:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DEAAB287E0 for ; Sun, 21 Oct 2018 20:00:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D2FB1287E5; Sun, 21 Oct 2018 20:00:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 89870287E0 for ; Sun, 21 Oct 2018 20:00:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727318AbeJVEP2 (ORCPT ); Mon, 22 Oct 2018 00:15:28 -0400 Received: from sauhun.de ([88.99.104.3]:45596 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726182AbeJVEP2 (ORCPT ); Mon, 22 Oct 2018 00:15:28 -0400 Received: from localhost (unknown [90.200.225.72]) by pokefinder.org (Postfix) with ESMTPSA id 099D32E35C1; Sun, 21 Oct 2018 21:59:59 +0200 (CEST) From: Wolfram Sang To: linux-kernel@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Wolfram Sang , linux-arm-kernel@lists.infradead.org Subject: [PATCH 0/1] bus: simplify getting .driver_data Date: Sun, 21 Oct 2018 21:59:57 +0200 Message-Id: <20181021195958.1412-1-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.19.0 MIME-Version: 1.0 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP I got tired of fixing this in Renesas drivers manually, so I took the big hammer. Remove this cumbersome code pattern which got copy-pasted too much already: - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_keypad *keypad = platform_get_drvdata(pdev); + struct ep93xx_keypad *keypad = dev_get_drvdata(dev); A branch, tested by buildbot, can be found here: git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git coccinelle/get_drvdata I have been asked if it couldn't be done for dev_set_drvdata as well. I checked it and did not find one occasion where it could be simplified like this. Not much of a surprise because driver_data is usually set in probe() functions which access struct platform_device in many other ways. I am open for other comments, suggestions, too, of course. Here is the cocci-script I created: @@ struct device* d; identifier pdev; expression *ptr; @@ ( - struct platform_device *pdev = to_platform_device(d); | - struct platform_device *pdev; ... - pdev = to_platform_device(d); ) <... when != pdev - &pdev->dev + d ...> ptr = - platform_get_drvdata(pdev) + dev_get_drvdata(d) <... when != pdev - &pdev->dev + d ...> Kind regards, Wolfram Wolfram Sang (1): bus: brcmstb_gisb: simplify getting .driver_data drivers/bus/brcmstb_gisb.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-)