ath10k: zero arvif memory on add_interface()
The private memory area in vif provided by mac80211 isn't guaranteed to be zeroed. This patch should fix issues when switching between STA and AP interface types. The tim_bitmap could become polluted by STA bssid field (since it's a union), wep_keys array could also become polluted with invalid pointers and probably much more. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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