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cfg80211: disallow setting channel on WDS interfaces

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If it worked (Felix says it doesn't right now), the
typical use-case for WDS interfaces would be to be
slaved to AP mode interfaces. Therefore, it isn't
necessary to set the channel on WDS interfaces. As
they don't support powersave or anything like that,
they also couldn't use a different channel anyway.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2012-05-16 23:50:19 +02:00
committed by John W. Linville
parent aa430da410
commit 685d12a192
2 changed files with 2 additions and 4 deletions
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5
net/wireless/nl80211.c
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@@ -1166,8 +1166,8 @@ static int parse_txq_params(struct nlattr *tb[],
static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
{
/*
* You can only set the channel explicitly for AP, mesh
* and WDS type interfaces; all others have their channel
* You can only set the channel explicitly for AP and
* mesh type interfaces; all others have their channel
* managed via their respective "establish a connection"
* command (connect, join, ...)
*
@@ -1180,7 +1180,6 @@ static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
*/
return !wdev ||
wdev->iftype == NL80211_IFTYPE_AP ||
wdev->iftype == NL80211_IFTYPE_WDS ||
wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
wdev->iftype == NL80211_IFTYPE_MONITOR ||
wdev->iftype == NL80211_IFTYPE_P2P_GO;