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mac80211: remove WARN_ON() from ieee80211_hw_config 

ieee80211_hw_config can return an error when the hardware
has rfkill enabled. A WARN_ON() is too harsh for this
failure as it is a valid scenario. Only comment this warning
as we would like to have it back when rfkill is integrated into
mac80211.

Also reintroduce propagation of error if ieee80211_hw_config fails
in ieee80211_config_beacon.

This patch partially reverts patch:
5f0387fc3337ca26f0745f945f550f0c3734960f
"mac80211: clean up ieee80211_hw_config errors"

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Reinette Chatre 2008-12-04 14:49:08 -08:00 committed by John W. Linville
parent bb608e9db7
commit 447107fb32
2 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
net/mac80211/cfg.c
View File

@ -396,8 +396,10 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
*/
if (params->interval) {
sdata->local->hw.conf.beacon_int = params->interval;
ieee80211_hw_config(sdata->local,
IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
err = ieee80211_hw_config(sdata->local,
IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
if (err < 0)
return err;
/*
* We updated some parameter so if below bails out
* it's not an error.

12
net/mac80211/main.c
View File

@ -243,10 +243,20 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
if (changed && local->open_count) {
ret = local->ops->config(local_to_hw(local), changed);
/*
* Goal:
* HW reconfiguration should never fail, the driver has told
* us what it can support so it should live up to that promise.
*
* Current status:
* rfkill is not integrated with mac80211 and a
* configuration command can thus fail if hardware rfkill
* is enabled
*
* FIXME: integrate rfkill with mac80211 and then add this
* WARN_ON() back
*
*/
WARN_ON(ret);
/* WARN_ON(ret); */
}
return ret;