From patchwork Wed Jun 12 14:26:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 10990133 X-Patchwork-Delegate: kvalo@adurom.com 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 C25366C5 for ; Wed, 12 Jun 2019 14:27:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B38262892E for ; Wed, 12 Jun 2019 14:27:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A75F928A13; Wed, 12 Jun 2019 14:27:30 +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,DKIM_SIGNED, DKIM_VALID,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 37E86289AF for ; Wed, 12 Jun 2019 14:27:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439744AbfFLO11 (ORCPT ); Wed, 12 Jun 2019 10:27:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:47036 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2439731AbfFLO1W (ORCPT ); Wed, 12 Jun 2019 10:27:22 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F2BA021734; Wed, 12 Jun 2019 14:27:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560349641; bh=/LeuXebJhvtr7J4eo2qjx+kcvUVpgOcHpoUCQd07BCw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YJQvX7lvTfqxZGPf8PjcgShXMSb4ZkU5AFlSEEQxOGIofAI9ZC5J2zhHsiwyOKTl8 mW9QPhG26e8RHYaIoVbGnSOjK3W8xqDr1pP7s4RkPCao/X1HygVa8XP2PW+jCciTcA aNn/KPFsJLDi30LRBz1acGZxmPPk3bzxz5QjUwwE= From: Greg Kroah-Hartman To: Johannes Berg Cc: Greg Kroah-Hartman , Stanislaw Gruszka , Kalle Valo , "David S. Miller" , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 2/5] iwlegacy: 4965: no need to check return value of debugfs_create functions Date: Wed, 12 Jun 2019 16:26:55 +0200 Message-Id: <20190612142658.12792-2-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190612142658.12792-1-gregkh@linuxfoundation.org> References: <20190612142658.12792-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When calling debugfs functions, there is no need to ever check the return value. This driver was saving the debugfs file away to be removed at a later time. However, the 80211 core would delete the whole directory that the debugfs files are created in, after it asks the driver to do the deletion, so just rely on the 80211 core to do all of the cleanup for us, making us not need to keep a pointer to the dentries around at all. This cleans up the structure of the driver data a bit and makes the code a tiny bit smaller. Cc: Stanislaw Gruszka Cc: Kalle Valo Cc: "David S. Miller" Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/intel/iwlegacy/4965-rs.c | 31 +++++-------------- drivers/net/wireless/intel/iwlegacy/common.h | 4 --- 2 files changed, 8 insertions(+), 27 deletions(-) diff --git a/drivers/net/wireless/intel/iwlegacy/4965-rs.c b/drivers/net/wireless/intel/iwlegacy/4965-rs.c index 54ff83829afb..f640709d9862 100644 --- a/drivers/net/wireless/intel/iwlegacy/4965-rs.c +++ b/drivers/net/wireless/intel/iwlegacy/4965-rs.c @@ -2767,29 +2767,15 @@ static void il4965_rs_add_debugfs(void *il, void *il_sta, struct dentry *dir) { struct il_lq_sta *lq_sta = il_sta; - lq_sta->rs_sta_dbgfs_scale_table_file = - debugfs_create_file("rate_scale_table", 0600, dir, - lq_sta, &rs_sta_dbgfs_scale_table_ops); - lq_sta->rs_sta_dbgfs_stats_table_file = - debugfs_create_file("rate_stats_table", 0400, dir, lq_sta, - &rs_sta_dbgfs_stats_table_ops); - lq_sta->rs_sta_dbgfs_rate_scale_data_file = - debugfs_create_file("rate_scale_data", 0400, dir, lq_sta, - &rs_sta_dbgfs_rate_scale_data_ops); - lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file = - debugfs_create_u8("tx_agg_tid_enable", 0600, dir, - &lq_sta->tx_agg_tid_en); -} - -static void -il4965_rs_remove_debugfs(void *il, void *il_sta) -{ - struct il_lq_sta *lq_sta = il_sta; - debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file); + debugfs_create_file("rate_scale_table", 0600, dir, lq_sta, + &rs_sta_dbgfs_scale_table_ops); + debugfs_create_file("rate_stats_table", 0400, dir, lq_sta, + &rs_sta_dbgfs_stats_table_ops); + debugfs_create_file("rate_scale_data", 0400, dir, lq_sta, + &rs_sta_dbgfs_rate_scale_data_ops); + debugfs_create_u8("tx_agg_tid_enable", 0600, dir, + &lq_sta->tx_agg_tid_en); } #endif @@ -2816,7 +2802,6 @@ static const struct rate_control_ops rs_4965_ops = { .free_sta = il4965_rs_free_sta, #ifdef CONFIG_MAC80211_DEBUGFS .add_sta_debugfs = il4965_rs_add_debugfs, - .remove_sta_debugfs = il4965_rs_remove_debugfs, #endif }; diff --git a/drivers/net/wireless/intel/iwlegacy/common.h b/drivers/net/wireless/intel/iwlegacy/common.h index 986646af8dfd..3c6f41763dde 100644 --- a/drivers/net/wireless/intel/iwlegacy/common.h +++ b/drivers/net/wireless/intel/iwlegacy/common.h @@ -2822,10 +2822,6 @@ struct il_lq_sta { struct il_traffic_load load[TID_MAX_LOAD_COUNT]; u8 tx_agg_tid_en; #ifdef CONFIG_MAC80211_DEBUGFS - struct dentry *rs_sta_dbgfs_scale_table_file; - struct dentry *rs_sta_dbgfs_stats_table_file; - struct dentry *rs_sta_dbgfs_rate_scale_data_file; - struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file; u32 dbg_fixed_rate; #endif struct il_priv *drv;