Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> writes: > Another problem to address is that the driver uses > ieee80211_iterate_stations_atomic() and > ieee80211_iterate_active_interfaces_atomic() and does register accesses > in the iterator. This doesn't work with USB, so iteration is done in two > steps now: The ieee80211_iterate_*_atomic() functions are only used to > collect the stations/interfaces on a list which is then iterated over > non-atomically in the second step. The implementation for this is > basically the one suggested by Ping-Ke here: > > https://lore.kernel.org/lkml/423f474e15c948eda4db5bc9a50fd391@xxxxxxxxxxx/ Isn't this racy? What guarantees that vifs are not deleted after ieee80211_iterate_active_interfaces_atomic() call? -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
