iwlwifi: do not call ieee80211_frequency_to_channel
A few cases in iwlwifi driver function ieee80211_frequency_to_channel()
is called to get channel number from center frequency. This is not needed
since the channel number is already saved in hw_value field of struct
ieee80211_channel in function iwlcore_init_geos(). So replace those function
calls with hw_value field of struct ieee80211_channel.
Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index d6da356..9415b71 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -1470,7 +1470,7 @@
cmd.band = band;
cmd.expect_beacon = 0;
- ch = ieee80211_frequency_to_channel(ch_switch->channel->center_freq);
+ ch = ch_switch->channel->hw_value;
cmd.channel = cpu_to_le16(ch);
cmd.rxon_flags = priv->staging_rxon.flags;
cmd.rxon_filter_flags = priv->staging_rxon.filter_flags;
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 54083a3..0c2ea136 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -291,7 +291,7 @@
};
cmd.band = priv->band == IEEE80211_BAND_2GHZ;
- ch = ieee80211_frequency_to_channel(ch_switch->channel->center_freq);
+ ch = ch_switch->channel->hw_value;
IWL_DEBUG_11H(priv, "channel switch from %d to %d\n",
priv->active_rxon.channel, ch);
cmd.channel = cpu_to_le16(ch);
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 7902de17..e0c6c3a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -214,7 +214,7 @@
};
cmd.band = priv->band == IEEE80211_BAND_2GHZ;
- ch = ieee80211_frequency_to_channel(ch_switch->channel->center_freq);
+ ch = ch_switch->channel->hw_value;
IWL_DEBUG_11H(priv, "channel switch from %u to %u\n",
priv->active_rxon.channel, ch);
cmd.channel = cpu_to_le16(ch);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index 9dd9e64..eedd71f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -1098,7 +1098,7 @@
if (chan->band != band)
continue;
- channel = ieee80211_frequency_to_channel(chan->center_freq);
+ channel = chan->hw_value;
scan_ch->channel = cpu_to_le16(channel);
ch_info = iwl_get_channel_info(priv, band, channel);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index bce77ee..eecfec7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3655,8 +3655,7 @@
mutex_lock(&priv->mutex);
if (priv->cfg->ops->lib->set_channel_switch) {
- ch = ieee80211_frequency_to_channel(
- ch_switch->channel->center_freq);
+ ch = ch_switch->channel->hw_value;
if (le16_to_cpu(priv->active_rxon.channel) != ch) {
ch_info = iwl_get_channel_info(priv,
conf->channel->band,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index b5045c6..dc29844 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -916,7 +916,7 @@
int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch)
{
enum ieee80211_band band = ch->band;
- u16 channel = ieee80211_frequency_to_channel(ch->center_freq);
+ u16 channel = ch->hw_value;
if (!iwl_get_channel_info(priv, band, channel)) {
IWL_DEBUG_INFO(priv, "Could not set channel to %d [%d]\n",
@@ -2032,7 +2032,7 @@
if (scan_active)
goto set_ch_out;
- ch = ieee80211_frequency_to_channel(conf->channel->center_freq);
+ ch = conf->channel->hw_value;
ch_info = iwl_get_channel_info(priv, conf->channel->band, ch);
if (!is_channel_valid(ch_info)) {
IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index e96a1bb..d3acdae 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -467,8 +467,7 @@
for (i = 0; i < supp_band->n_channels; i++)
pos += scnprintf(buf + pos, bufsz - pos,
"%d: %ddBm: BSS%s%s, %s.\n",
- ieee80211_frequency_to_channel(
- channels[i].center_freq),
+ channels[i].hw_value,
channels[i].max_power,
channels[i].flags & IEEE80211_CHAN_RADAR ?
" (IEEE 802.11h required)" : "",
@@ -491,8 +490,7 @@
for (i = 0; i < supp_band->n_channels; i++)
pos += scnprintf(buf + pos, bufsz - pos,
"%d: %ddBm: BSS%s%s, %s.\n",
- ieee80211_frequency_to_channel(
- channels[i].center_freq),
+ channels[i].hw_value,
channels[i].max_power,
channels[i].flags & IEEE80211_CHAN_RADAR ?
" (IEEE 802.11h required)" : "",