diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2008-07-09 12:40:36 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-07-14 18:30:07 (GMT) |
| commit | f3947e2dfa3b18f375b7acd03b7ee2877d0751fc (patch) | |
| tree | 3f68e55a214e638f1210883958d0746610c9dcf8 /net/mac80211/iface.c | |
| parent | 75636525fbfa78fa33fd754c89785cfde750acd3 (diff) | |
| download | linux-f3947e2dfa3b18f375b7acd03b7ee2877d0751fc.tar.xz | |
mac80211: push interface checks down
This patch pushes the "netif_running()" and "same type as before"
checks down into ieee80211_if_change_type() to centralise the
logic instead of duplicating it for cfg80211 and wext.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/iface.c')
| -rw-r--r-- | net/mac80211/iface.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 6cf121b..2e3adcb 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -138,9 +138,23 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, ieee80211_debugfs_add_netdev(sdata); } -void ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, - enum ieee80211_if_types type) +int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, + enum ieee80211_if_types type) { + ASSERT_RTNL(); + + if (type == sdata->vif.type) + return 0; + + /* + * We could, here, on changes between IBSS/STA/MESH modes, + * invoke an MLME function instead that disassociates etc. + * and goes into the requested mode. + */ + + if (netif_running(sdata->dev)) + return -EBUSY; + /* Purge and reset type-dependent state. */ ieee80211_teardown_sdata(sdata->dev); ieee80211_setup_sdata(sdata, type); @@ -149,6 +163,8 @@ void ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, sdata->basic_rates = 0; sdata->drop_unencrypted = 0; sdata->sequence = 0; + + return 0; } int ieee80211_if_add(struct ieee80211_local *local, const char *name, |