summaryrefslogtreecommitdiffstats
path: root/net/wireless/wext-compat.c
diff options
context:
space:
mode:
authorJohannes Berg <johannes@sipsolutions.net>2009-03-21 17:07:59 +0100
committerJohn W. Linville <linville@tuxdriver.com>2009-03-27 20:13:08 -0400
commitac7f9cfa2c3b810e0adfb889ad407a8c79a84dbe (patch)
tree599a601a2adc5e3806a4bb665491dd08fe2eb3ff /net/wireless/wext-compat.c
parent86f04680df4a136a4a90501572dc2f31f8426581 (diff)
cfg80211: accept no-op interface mode changes
When somebody tries to set the interface mode to the existing mode, don't ask the driver but silently accept the setting. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless/wext-compat.c')
-rw-r--r--net/wireless/wext-compat.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index b84a9b4fe96..0fd1db6e95b 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -66,6 +66,7 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
struct cfg80211_registered_device *rdev;
struct vif_params vifparams;
enum nl80211_iftype type;
+ int ret;
if (!wdev)
return -EOPNOTSUPP;
@@ -96,10 +97,16 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
return -EINVAL;
}
+ if (type == wdev->iftype)
+ return 0;
+
memset(&vifparams, 0, sizeof(vifparams));
- return rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type,
- NULL, &vifparams);
+ ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type,
+ NULL, &vifparams);
+ WARN_ON(!ret && wdev->iftype != type);
+
+ return ret;
}
EXPORT_SYMBOL(cfg80211_wext_siwmode);