mac80211: consider more elements in parsing CRC
authorJohannes Berg <johannes.berg@intel.com>
Fri, 31 Jan 2020 11:12:58 +0000 (13:12 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 5 Mar 2020 15:42:13 +0000 (16:42 +0100)
commit3d7a9c311e991714835ac023572e2bb431c47a6e
treecaa477803cd066a97ea3594416bd5547c44446d7
parent5195d8c4a4988109fc16a433ebdb64a5acf88c90
mac80211: consider more elements in parsing CRC

[ Upstream commit a04564c99bb4a92f805a58e56b2d22cc4978f152 ]

We only use the parsing CRC for checking if a beacon changed,
and elements with an ID > 63 cannot be represented in the
filter. Thus, like we did before with WMM and Cisco vendor
elements, just statically add these forgotten items to the
CRC:
 - WLAN_EID_VHT_OPERATION
 - WLAN_EID_OPMODE_NOTIF

I guess that in most cases when VHT/HE operation change, the HT
operation also changed, and so the change was picked up, but we
did notice that pure operating mode notification changes were
ignored.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-22-luca@coelho.fi
[restrict to VHT for the mac80211 branch]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
net/mac80211/util.c