Re: [PATCH] ACS: cover not-offloaded-ACS with hw_mode=any

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On Mon, Jan 13, 2020 at 04:31:28PM +0800, neojou@xxxxxxxxx wrote:
> This patch is to extend the existing hw_mode=any to cover
> the not-offloaded-ACS case.
> 
> We DONOT duplicate for the mode HOSTAPD_MODE_IEEE80211ANY in
> wpa_driver_nl80211_postprocess_modes(), so hostapd_select_hw_mode()
> cannot find suitable hw_mode and iface->current_mode is NULL. Thus,
> ACS code combine channels from multiple hw_mode lists, to determine
> which channel needs to be surveyed. Thus, there are some patches in
> src/ap/acs.c to handle the case that iface->current_mode is NULL,
> and to combine channels.
> 
> Also in hostapd_is_usable_chans() called by hostapd_check_chans(),
> it updates the hw_mode, based on the frequency channel ACS picked.
> 
> By this way, "hw_mode=any" can be used for not-offloaded-ACS case.

Thanks, applied with some cleanup and fixes.

-- 
Jouni Malinen                                            PGP id EFC895FA

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