From 49175fe63ee8433dffeb64aee685bf8d439d5698 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Jun 2019 16:26:56 +0200 Subject: iwlwifi: dvm: no need to check return value of debugfs_create functions 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. Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20190612142658.12792-3-gregkh@linuxfoundation.org Signed-off-by: Johannes Berg --- drivers/net/wireless/intel/iwlwifi/dvm/rs.c | 29 ++++++++--------------------- 1 file changed, 8 insertions(+), 21 deletions(-) (limited to 'drivers/net/wireless/intel/iwlwifi/dvm/rs.c') diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c index b1e5d64ca60d..74229fcb63a9 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c @@ -3256,28 +3256,16 @@ 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 @@ -3303,7 +3291,6 @@ 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 }; -- cgit