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iwlegacy: refactor iwl4965_mac_channel_switch 

Use less indentions and remove uneeded irq-save flags.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislaw Gruszka 2011-06-08 15:28:29 +02:00 committed by John W. Linville
parent 0d01550f3d
commit 7f1f974251
1 changed files with 55 additions and 56 deletions
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111
drivers/net/wireless/iwlegacy/iwl4965-base.c
View File

@ -2510,7 +2510,6 @@ void iwl4965_mac_channel_switch(struct ieee80211_hw *hw,
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
u16 ch;
unsigned long flags = 0;
IWL_DEBUG_MAC80211(priv, "enter\n");
@ -2527,64 +2526,64 @@ void iwl4965_mac_channel_switch(struct ieee80211_hw *hw,
if (!iwl_legacy_is_associated_ctx(ctx))
goto out;
if (priv->cfg->ops->lib->set_channel_switch) {
if (priv->cfg->ops->lib->set_channel_switch)
goto out;
ch = channel->hw_value;
if (le16_to_cpu(ctx->active.channel) != ch) {
ch_info = iwl_legacy_get_channel_info(priv,
channel->band,
ch);
if (!iwl_legacy_is_channel_valid(ch_info)) {
IWL_DEBUG_MAC80211(priv, "invalid channel\n");
goto out;
}
spin_lock_irqsave(&priv->lock, flags);
ch = channel->hw_value;
if (le16_to_cpu(ctx->active.channel) == ch)
goto out;
priv->current_ht_config.smps = conf->smps_mode;
/* Configure HT40 channels */
ctx->ht.enabled = conf_is_ht(conf);
if (ctx->ht.enabled) {
if (conf_is_ht40_minus(conf)) {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_BELOW;
ctx->ht.is_40mhz = true;
} else if (conf_is_ht40_plus(conf)) {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
ctx->ht.is_40mhz = true;
} else {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_NONE;
ctx->ht.is_40mhz = false;
}
} else
ctx->ht.is_40mhz = false;
if ((le16_to_cpu(ctx->staging.channel) != ch))
ctx->staging.flags = 0;
iwl_legacy_set_rxon_channel(priv, channel, ctx);
iwl_legacy_set_rxon_ht(priv, ht_conf);
iwl_legacy_set_flags_for_band(priv, ctx, channel->band,
ctx->vif);
spin_unlock_irqrestore(&priv->lock, flags);
iwl_legacy_set_rate(priv);
/*
* at this point, staging_rxon has the
* configuration for channel switch
*/
set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
priv->switch_channel = cpu_to_le16(ch);
if (priv->cfg->ops->lib->set_channel_switch(priv, ch_switch)) {
clear_bit(STATUS_CHANNEL_SWITCH_PENDING,
&priv->status);
priv->switch_channel = 0;
ieee80211_chswitch_done(ctx->vif, false);
}
}
ch_info = iwl_legacy_get_channel_info(priv, channel->band, ch);
if (!iwl_legacy_is_channel_valid(ch_info)) {
IWL_DEBUG_MAC80211(priv, "invalid channel\n");
goto out;
}
spin_lock(&priv->lock);
priv->current_ht_config.smps = conf->smps_mode;
/* Configure HT40 channels */
ctx->ht.enabled = conf_is_ht(conf);
if (ctx->ht.enabled) {
if (conf_is_ht40_minus(conf)) {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_BELOW;
ctx->ht.is_40mhz = true;
} else if (conf_is_ht40_plus(conf)) {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
ctx->ht.is_40mhz = true;
} else {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_NONE;
ctx->ht.is_40mhz = false;
}
} else
ctx->ht.is_40mhz = false;
if ((le16_to_cpu(ctx->staging.channel) != ch))
ctx->staging.flags = 0;
iwl_legacy_set_rxon_channel(priv, channel, ctx);
iwl_legacy_set_rxon_ht(priv, ht_conf);
iwl_legacy_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
spin_unlock_irq(&priv->lock);
iwl_legacy_set_rate(priv);
/*
* at this point, staging_rxon has the
* configuration for channel switch
*/
set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
priv->switch_channel = cpu_to_le16(ch);
if (priv->cfg->ops->lib->set_channel_switch(priv, ch_switch)) {
clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
priv->switch_channel = 0;
ieee80211_chswitch_done(ctx->vif, false);
}
out:
mutex_unlock(&priv->mutex);
IWL_DEBUG_MAC80211(priv, "leave\n");