]> git.baikalelectronics.ru Git - kernel.git/commit
mac80211: fix HT beacon-based channel switch handling
authorJohannes Berg <johannes.berg@intel.com>
Fri, 3 May 2013 07:35:35 +0000 (09:35 +0200)
committerJohannes Berg <johannes.berg@intel.com>
Thu, 16 May 2013 20:39:40 +0000 (22:39 +0200)
commit8eedf4e80c8c6d1b19743cfb6bf83ed9294c92c7
tree5a2544eb41a476637efeb8a8e71c90013d572a2c
parent8fb95b7f7e9f154a7ddaacedb4f09571c2f8885d
mac80211: fix HT beacon-based channel switch handling

When an HT AP is advertising channel switch in a beacon, it
doesn't (and shouldn't, according to 802.11-2012 Table 8-20)
include a secondary channel offset element. The only possible
interpretation is that the previous secondary channel offset
remains valid, so use that when switching channel based only
on beacon information.

VHT requires the Wide Bandwidth Channel Switch subelement to
be present in the Channel Switch Wrapper element, so the code
for that is probably ok (see 802.11ac Draft 4, 8.4.2.165.)

Reported-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/mac80211/mlme.c