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=-8.7 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 867F6C31E46 for ; Wed, 12 Jun 2019 14:27:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 60A562082C for ; Wed, 12 Jun 2019 14:27:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560349657; bh=6rtLmZ/YqQyYFHMy6ghrsSDwEwjy77H/Fnh+Yy9T58g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=tqubuOyLg6L5YbDdbepzfHPLpETU5LwG3jRZBolwwA/Ez3mQuLYbV0/wKf7q2lXuN 2gt4so9F25ytkDM95qrPIUYh5pT7gWzOsrUa2jN3MO8VqUUexuVdWuQPp1C9U2F0GM KhI9J5sr45/KFEfJov+NsVgpPKTsl9bnM34IJQtg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439741AbfFLO11 (ORCPT ); Wed, 12 Jun 2019 10:27:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:47114 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2439675AbfFLO1Z (ORCPT ); Wed, 12 Jun 2019 10:27:25 -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 92F7F2082C; Wed, 12 Jun 2019 14:27:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560349644; bh=6rtLmZ/YqQyYFHMy6ghrsSDwEwjy77H/Fnh+Yy9T58g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hMAmvKWRGTcRoCbEpRu7wgvynVapIio1yCjY+fZ4SitSdrWT+RL/AjCV5Yzy5vqCm X+9R6l/YTi8RXOMSowOpFRAx1SvvLY9nSXfWaroyGpBWrWxPi9JSZc/goydtA/UJSf 5tv1Qg5j9AmQhcZ3j/kgqsYvrfT6elJ4UXo8KMXI= From: Greg Kroah-Hartman To: Johannes Berg Cc: Greg Kroah-Hartman , Emmanuel Grumbach , Luca Coelho , Intel Linux Wireless , Kalle Valo , "David S. Miller" , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 3/5] iwlwifi: dvm: no need to check return value of debugfs_create functions Date: Wed, 12 Jun 2019 16:26:56 +0200 Message-Id: <20190612142658.12792-3-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 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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: Johannes Berg Cc: Emmanuel Grumbach Cc: Luca Coelho Cc: Intel Linux Wireless 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/iwlwifi/dvm/rs.c | 29 ++++++--------------- drivers/net/wireless/intel/iwlwifi/dvm/rs.h | 4 --- 2 files changed, 8 insertions(+), 25 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c index ef4b9de256f7..91e571c99f81 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c @@ -3271,28 +3271,16 @@ static void rs_add_debugfs(void *priv, void *priv_sta, struct dentry *dir) { struct iwl_lq_sta *lq_sta = priv_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); -} + 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); -static void rs_remove_debugfs(void *priv, void *priv_sta) -{ - struct iwl_lq_sta *lq_sta = priv_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); } #endif @@ -3318,7 +3306,6 @@ static const struct rate_control_ops rs_ops = { .free_sta = rs_free_sta, #ifdef CONFIG_MAC80211_DEBUGFS .add_sta_debugfs = rs_add_debugfs, - .remove_sta_debugfs = rs_remove_debugfs, #endif }; diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.h b/drivers/net/wireless/intel/iwlwifi/dvm/rs.h index b2df3a8cc464..92836a815234 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.h +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.h @@ -367,10 +367,6 @@ struct iwl_lq_sta { struct iwl_traffic_load load[IWL_MAX_TID_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 iwl_priv *drv; -- 2.22.0