diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2010-09-03 06:32:21 -0700 |
|---|---|---|
| committer | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2010-09-11 08:51:39 -0700 |
| commit | 763cc3bf5c2ae189a929fce54759c5bd94b8ba16 (patch) | |
| tree | 99d8574d1b8172b4f527d6674908081b6e279355 /drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c | |
| parent | c6abdc0dc3440b9b6ae00a59c3560ab2160c7c7d (diff) | |
iwlwifi: avoid sending too many commands
When the PAN context is unused, there's no
need to continually update it in the device.
So track which contexts are active (with the
special case that the WLAN context is always
active ...) and only send their commands to
the device when needed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c index d03ba6a8e64..a63582f060f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c @@ -287,6 +287,15 @@ static int iwlagn_set_pan_params(struct iwl_priv *priv) ctx_bss = &priv->contexts[IWL_RXON_CTX_BSS]; ctx_pan = &priv->contexts[IWL_RXON_CTX_PAN]; + /* + * If the PAN context is inactive, then we don't need + * to update the PAN parameters, the last thing we'll + * have done before it goes inactive is making the PAN + * parameters be WLAN-only. + */ + if (!ctx_pan->is_active) + return 0; + memset(&cmd, 0, sizeof(cmd)); /* only 2 slots are currently allowed */ |