From: Abhijeet Kolekar <abhijeet.kolekar@xxxxxxxxx>
For WME(221) tag in beacon frames from certain n-only aps·
5th bit is not set.So while parsing the beacon frame the wmm_info·
structure is used instead of wmm_param. wmm_info structure is·
never used to set bss->wmm_ie. While sending the association request to
n-only ap it checks for wmm_ie. If it is set then only ieee80211_ht_cap
is sent during association request.So n-only association fails.
This patch fixes this problem by copying the WME information from wmm_info
to bss->wmm_ie and thus enabling n-band association.
Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@xxxxxxxxx>
Acked-by: Ron Rindjunsky <ron.rindjunsky@xxxxxxxxx>
---
net/mac80211/mlme.c | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 83e8b49..ec2f722 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2668,7 +2668,18 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
bss->wmm_ie_len = elems.wmm_param_len + 2;
} else
bss->wmm_ie_len = 0;
- } else if (!elems.wmm_param && bss->wmm_ie) {
+ } else if (elems.wmm_info &&
+ (!bss->wmm_ie || bss->wmm_ie_len != elems.wmm_info_len ||
+ memcmp(bss->wmm_ie, elems.wmm_info,elems.wmm_info_len))) {
+ kfree(bss->wmm_ie);
+ bss->wmm_ie = kmalloc(elems.wmm_info_len + 2, GFP_ATOMIC);
+ if (bss->wmm_ie) {
+ memcpy(bss->wmm_ie, elems.wmm_info - 2,
+ elems.wmm_info_len + 2);
+ bss->wmm_ie_len = elems.wmm_info_len + 2;
+ } else
+ bss->wmm_ie_len = 0;
+ } else if (!elems.wmm_param && !elems.wmm_info && bss->wmm_ie) {
kfree(bss->wmm_ie);
bss->wmm_ie = NULL;
bss->wmm_ie_len = 0;
--
1.5.3.4
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