xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cfg80211: parse multi-bssid only if HW supports it

Browse Source 
Parsing and exposing nontransmitted APs is problematic
when underlying HW doesn't support it. Do it only if
driver indicated support. Allow HE restriction as well,
since the HE spec defined the exact manner that Multiple
BSSID set should behave. APs that not support the HE
spec will have less predictable Multiple BSSID set
support/behavior

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Sara Sharon
2019-01-16 23:02:03 +02:00
committed by Johannes Berg
parent 7011ba583f
commit 213ed579d3
2 changed files with 18 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
net/wireless/scan.c
View File

@@ -1417,6 +1417,11 @@ static void cfg80211_parse_mbssid_data(struct wiphy *wiphy,
return;
if (!cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen))
return;
if (!wiphy->support_mbssid)
return;
if (wiphy->support_only_he_mbssid &&
!cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen))
return;
new_ie = kmalloc(IEEE80211_MAX_DATA_LEN, gfp);
if (!new_ie)
@@ -1701,7 +1706,11 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
res = cfg80211_inform_single_bss_frame_data(wiphy, data, mgmt,
len, NULL, gfp);
if (!res || !cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen))
if (!res || !wiphy->support_mbssid ||
!cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen))
return res;
if (wiphy->support_only_he_mbssid &&
!cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen))
return res;
/* process each non-transmitting bss */