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mac80211: fix BSS info reconfiguration 

When reconfiguring an interface due to a previous
hardware restart, mac80211 will currently include
the new IBSS flag on non-IBSS interfaces which may
confuse drivers.

Instead of doing the ~0 trick, simply spell out
which things are going to be reconfigured.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2010-05-05 09:44:02 +02:00 committed by John W. Linville
parent bac6fafd4d
commit ac8dd506e4
2 changed files with 22 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/net/mac80211.h
View File

@ -160,6 +160,8 @@ enum ieee80211_bss_change {
BSS_CHANGED_BEACON_ENABLED = 1<<9,
BSS_CHANGED_CQM = 1<<10,
BSS_CHANGED_IBSS = 1<<11,
/* when adding here, make sure to change ieee80211_reconfig */
};
/**

25
net/mac80211/util.c
View File

@ -1160,18 +1160,33 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* Finally also reconfigure all the BSS information */
list_for_each_entry(sdata, &local->interfaces, list) {
u32 changed = ~0;
u32 changed;
if (!ieee80211_sdata_running(sdata))
continue;
/* common change flags for all interface types */
changed = BSS_CHANGED_ERP_CTS_PROT |
BSS_CHANGED_ERP_PREAMBLE |
BSS_CHANGED_ERP_SLOT |
BSS_CHANGED_HT |
BSS_CHANGED_BASIC_RATES |
BSS_CHANGED_BEACON_INT |
BSS_CHANGED_BSSID |
BSS_CHANGED_CQM;
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
/* disable beacon change bits */
changed &= ~(BSS_CHANGED_BEACON |
BSS_CHANGED_BEACON_ENABLED);
/* fall through */
changed |= BSS_CHANGED_ASSOC;
ieee80211_bss_info_change_notify(sdata, changed);
break;
case NL80211_IFTYPE_ADHOC:
changed |= BSS_CHANGED_IBSS;
/* fall through */
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_MESH_POINT:
changed |= BSS_CHANGED_BEACON |
BSS_CHANGED_BEACON_ENABLED;
ieee80211_bss_info_change_notify(sdata, changed);
break;
case NL80211_IFTYPE_WDS: