From 9dc216d740e1210ccb3da533e2dab99a156300f9 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 16 May 2012 15:42:56 +0200 Subject: [PATCH] iwlwifi: trust mac80211 channel setting mac80211 will never set, switch to, or scan on an invalid channel, so remove the code to validate the channels against the driver channel list. Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- drivers/net/wireless/iwlwifi/iwl-agn-rxon.c | 9 --------- drivers/net/wireless/iwlwifi/iwl-mac80211.c | 7 ------- drivers/net/wireless/iwlwifi/iwl-scan.c | 12 +----------- 3 files changed, 1 insertion(+), 27 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c index c570318a2375..36b4965527c2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c @@ -1182,7 +1182,6 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed) struct iwl_rxon_context *ctx; struct ieee80211_conf *conf = &hw->conf; struct ieee80211_channel *channel = conf->channel; - const struct iwl_channel_info *ch_info; int ret = 0; IWL_DEBUG_MAC80211(priv, "enter: changed %#x\n", changed); @@ -1216,14 +1215,6 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed) } if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { - ch_info = iwl_get_channel_info(priv, channel->band, - channel->hw_value); - if (!is_channel_valid(ch_info)) { - IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); - ret = -EINVAL; - goto out; - } - for_each_context(priv, ctx) { /* Configure HT40 channels */ if (ctx->ht.enabled != conf_is_ht(conf)) diff --git a/drivers/net/wireless/iwlwifi/iwl-mac80211.c b/drivers/net/wireless/iwlwifi/iwl-mac80211.c index d0b64cd95fc5..19e5235fba7c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-mac80211.c +++ b/drivers/net/wireless/iwlwifi/iwl-mac80211.c @@ -844,7 +844,6 @@ static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, struct ieee80211_channel_switch *ch_switch) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); - const struct iwl_channel_info *ch_info; struct ieee80211_conf *conf = &hw->conf; struct ieee80211_channel *channel = ch_switch->channel; struct iwl_ht_config *ht_conf = &priv->current_ht_config; @@ -881,12 +880,6 @@ static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, if (le16_to_cpu(ctx->active.channel) == ch) goto out; - ch_info = iwl_get_channel_info(priv, channel->band, ch); - if (!is_channel_valid(ch_info)) { - IWL_DEBUG_MAC80211(priv, "invalid channel\n"); - goto out; - } - priv->current_ht_config.smps = conf->smps_mode; /* Configure HT40 channels */ diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index eb0ded7a8a99..ea05ae8280e1 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -534,7 +534,6 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv, { struct ieee80211_channel *chan; const struct ieee80211_supported_band *sband; - const struct iwl_channel_info *ch_info; u16 passive_dwell = 0; u16 active_dwell = 0; int added, i; @@ -559,16 +558,7 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv, channel = chan->hw_value; scan_ch->channel = cpu_to_le16(channel); - ch_info = iwl_get_channel_info(priv, band, channel); - if (!is_channel_valid(ch_info)) { - IWL_DEBUG_SCAN(priv, - "Channel %d is INVALID for this band.\n", - channel); - continue; - } - - if (!is_active || is_channel_passive(ch_info) || - (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) + if (!is_active || (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; else scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE; -- 2.34.1