Needed for IBSS IEEE802.11N operation
* Add a new attribute NL80211_ATTR_WIPHY_CHANNEL_TYPE to specify
a HT channel type for IBSS
Signed-off-by: Alexander Simon <alexander.simon@xxxxxxxxx>
---
nl80211.c | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff -Nrup a/net/wireless/nl80211.c b/net/wireless/nl80211.c
--- a/net/wireless/nl80211.c 2011-03-31 21:04:02.000000000 +0200
+++ b/net/wireless/nl80211.c 2011-04-12 08:49:19.000000000 +0200
@@ -3927,8 +3927,24 @@ static int nl80211_join_ibss(struct sk_b
ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
}
- ibss.channel = ieee80211_get_channel(wiphy,
- nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
+ if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
+ enum nl80211_channel_type channel_type;
+
+ channel_type = nla_get_u32(
+ info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
+ if (channel_type != NL80211_CHAN_NO_HT &&
+ channel_type != NL80211_CHAN_HT20 &&
+ channel_type != NL80211_CHAN_HT40PLUS &&
+ channel_type != NL80211_CHAN_HT40MINUS)
+ return -EINVAL;
+ ibss.channel_type = channel_type;
+ } else {
+ ibss.channel_type = NL80211_CHAN_NO_HT;
+ }
+
+ ibss.channel = rdev_freq_to_chan(rdev,
+ nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
+ ibss.channel_type);
if (!ibss.channel ||
ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
ibss.channel->flags & IEEE80211_CHAN_DISABLED)
--
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