This patchset attempts to address the issue where a driver that uses the cfg80211 connect operation connects to an AP before the scan result for the AP is available. This triggers a WARN_ON in sme.c, and the connection fails. This is only an issue for drivers that do not pass beacons/probes to cfg80211, except in response to an explicit scan. With typical userspace the issue will only manifest if using iwconfig to connect, or if using wpa_supplicant with ap_scan=2 (which you might do with a hidden SSID). The patches were originally written for the orinoco cfg80211 conversion (currently stalled due to lack of time). It sounds like the libertas cfg80211 drivers have the same problem, so I'm posting them in case they're useful. There's a bit of cleanup to do, and there may be issues with the setting of the channels to scan (orinoco can't scan by channel) so if someone wants to pick these up, please do. Testing - a version of this has been running with my orinoco changes for the last 3 or 4 months (in more or less daily use). - Untested against drivers that don't use ->connect Signed-off-by: David Kilroy <kilroyd@xxxxxxxxxxxxxx> --- David Kilroy (2): cfg80211: generic trigger scan and callback on completion cfg80211: scan for missing BSS on connect completion include/net/cfg80211.h | 3 + net/wireless/core.h | 6 ++ net/wireless/scan.c | 41 ++++++++++++- net/wireless/sme.c | 163 ++++++++++++++++++++++++++++++++++++++---------- 4 files changed, 178 insertions(+), 35 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
