[Buildroot] [2/2, v2] wpa_supplicant: Have Hotspot 2.0 depend on nl80211

[Gary Bisson <gary.bisson@boundarydevices.com>]

Hi Nicolas,

On Fri, Jul 17, 2015 at 09:59:10AM +0200, Nicolas Cavallari wrote:
> Hotspot 2.0 uses ANQP whose implementation needs offchannel/
> remain-on-channel capabilities from the driver, which only exist in the
> nl80211 driver.  Compiling would work, but the feature would not work.
> 
> Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
> ---
> 
> v2: added signoff.
>  package/wpa_supplicant/Config.in | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/package/wpa_supplicant/Config.in b/package/wpa_supplicant/Config.in
> index 29dc4b9..22cf7f8 100644
> --- a/package/wpa_supplicant/Config.in
> +++ b/package/wpa_supplicant/Config.in
> @@ -41,6 +41,7 @@ config BR2_PACKAGE_WPA_SUPPLICANT_EAP
>  
>  config BR2_PACKAGE_WPA_SUPPLICANT_HOTSPOT
>  	bool "Enable HS20"
> +	depends on BR2_PACKAGE_WPA_SUPPLICANT_NL80211
>  	help
>  	  Enable Hotspot 2.0 and IEEE 802.11u interworking functionality.
>

First I'm not sure on the procedure to test the Hotspot 2.0 but I think
we should at least add a comment like:

comment "HS20 needs NL80211 support"
	depends on !BR2_PACKAGE_WPA_SUPPLICANT_NL80211

Because right now if you unselect NL80211 WPA option the HS20 just
disappears.

Or maybe selecting NL80211 would be even better if absolutely required
at runtime.

Regards,
Gary