On 29 November 2014 at 04:32, nick [off-list ref] wrote:

I don't have hardware for this driver on me, so I didn't test it. However this seems to
be correct from my reading of the code around this function and other locking related
to this driver.

So do you say it's not executed in an atomic?

From *early* look it seems b43_update_templates is called from

b43_op_beacon_set_tim and b43_op_bss_info_changed, both or them are
mac80211 callbacks. That also should be safe, however I didn't check
if it may conflict with some in-kernel code (still, assuming it's not
atomic code, which I don't know!).