From patchwork Tue May 25 17:14:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 447784 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 0C02DC2B9F8 for ; Tue, 25 May 2021 17:14:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DE3DA613F4 for ; Tue, 25 May 2021 17:14:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233478AbhEYRPx (ORCPT ); Tue, 25 May 2021 13:15:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:54208 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233068AbhEYRPw (ORCPT ); Tue, 25 May 2021 13:15:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3DD4F6141D; Tue, 25 May 2021 17:14:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621962862; bh=fDkfNMlC9wQ7QHYeWu3hJTuwGFbSKKYtHYUyCFPqNVc=; h=From:To:Cc:Subject:Date:From; b=XvWewFeNjURqwMK/ax1RVSuYVzgdl8RH7IaMAm/FKpxDSpDCztb5eznOVedwuGFdh rLiO6SzGdN3I9ENd/tfFDJEU6xoL0E6Z9pSi/EFukHj0AVNzNqmr9HUqTsWShfxpXw 0hTACj8BE3eKAciD5JW3qfE1JSlDxh1frGrTgBv0= From: Greg Kroah-Hartman To: Peter Chen Cc: linux-usb@vger.kernel.org, Greg Kroah-Hartman Subject: [PATCH] USB: chipidea: remove dentry storage for debugfs file Date: Tue, 25 May 2021 19:14:19 +0200 Message-Id: <20210525171419.758146-1-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org There is no need to store the dentry pointer for a debugfs file that we only use to remove it when the device goes away. debugfs can do the lookup for us instead, saving us some trouble, and making things smaller overall. Cc: Peter Chen Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/ci.h | 2 -- drivers/usb/chipidea/debug.c | 34 ++++++++++++++-------------------- 2 files changed, 14 insertions(+), 22 deletions(-) diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index 0697eb980e5f..99440baa6458 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -195,7 +195,6 @@ struct hw_bank { * @phy: pointer to PHY, if any * @usb_phy: pointer to USB PHY, if any and if using the USB PHY framework * @hcd: pointer to usb_hcd for ehci host driver - * @debugfs: root dentry for this controller in debugfs * @id_event: indicates there is an id event, and handled at ci_otg_work * @b_sess_valid_event: indicates there is a vbus event, and handled * at ci_otg_work @@ -249,7 +248,6 @@ struct ci_hdrc { /* old usb_phy interface */ struct usb_phy *usb_phy; struct usb_hcd *hcd; - struct dentry *debugfs; bool id_event; bool b_sess_valid_event; bool imx28_write_fix; diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c index da5d18cf6840..faf6b078b6c4 100644 --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -342,26 +342,20 @@ DEFINE_SHOW_ATTRIBUTE(ci_registers); */ void dbg_create_files(struct ci_hdrc *ci) { - ci->debugfs = debugfs_create_dir(dev_name(ci->dev), usb_debug_root); - - debugfs_create_file("device", S_IRUGO, ci->debugfs, ci, - &ci_device_fops); - debugfs_create_file("port_test", S_IRUGO | S_IWUSR, ci->debugfs, ci, - &ci_port_test_fops); - debugfs_create_file("qheads", S_IRUGO, ci->debugfs, ci, - &ci_qheads_fops); - debugfs_create_file("requests", S_IRUGO, ci->debugfs, ci, - &ci_requests_fops); - - if (ci_otg_is_fsm_mode(ci)) { - debugfs_create_file("otg", S_IRUGO, ci->debugfs, ci, - &ci_otg_fops); - } + struct dentry *dir; + + dir = debugfs_create_dir(dev_name(ci->dev), usb_debug_root); + + debugfs_create_file("device", S_IRUGO, dir, ci, &ci_device_fops); + debugfs_create_file("port_test", S_IRUGO | S_IWUSR, dir, ci, &ci_port_test_fops); + debugfs_create_file("qheads", S_IRUGO, dir, ci, &ci_qheads_fops); + debugfs_create_file("requests", S_IRUGO, dir, ci, &ci_requests_fops); + + if (ci_otg_is_fsm_mode(ci)) + debugfs_create_file("otg", S_IRUGO, dir, ci, &ci_otg_fops); - debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci, - &ci_role_fops); - debugfs_create_file("registers", S_IRUGO, ci->debugfs, ci, - &ci_registers_fops); + debugfs_create_file("role", S_IRUGO | S_IWUSR, dir, ci, &ci_role_fops); + debugfs_create_file("registers", S_IRUGO, dir, ci, &ci_registers_fops); } /** @@ -370,5 +364,5 @@ void dbg_create_files(struct ci_hdrc *ci) */ void dbg_remove_files(struct ci_hdrc *ci) { - debugfs_remove_recursive(ci->debugfs); + debugfs_remove(debugfs_lookup(dev_name(ci->dev), usb_debug_root)); }