qcacld-3.0: Consider NAN enabling also as connection in progress
There is a race condition while handling the below scenario,
1. NAN enable request is received from framework.
2. Policy mgr opportunistic timer expired and set hw mode
initiated to Single MAC mode in scheduler thread at
the same time
As the opportunistic timer handler doesn't have any info if
NAN enable initiated in DBS mode, it's configuring the hw
mode to Single Mac Mode just before NAN enable request is sent
to firmware. So the NAN enable request is sent to firmware in
Single Mac Mode which is not allowed by firmware.
NAN enable/disable is also similar to connection in progress
status in case of STA. So provide NAN enable/disable status
through hdd_is_connection_in_progress() to the opportunistic
timer handler. Opportunistic timer handler restarts the timer as
connection(NAN enable/disable) is in progress.
Also set hw_mode_change_in_progress before checking the
connection progress status. This is to avoid a possible race in
the below scenario,
1. NAN-enable sets the state but scheduler thread had read the
state just before that
2. NAN-enable read the hw_mode_change_in_progress just
before it gets set by scheduler thread.
Change-Id: I1a184c84520deb3f6ad1ec010a0fdefda96a5364
CRs-Fixed: 2566841
5 files changed