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Re: [PATCH 2/2][RFC] mac80211_hwsim: Report radio addresses in NEW_RADIO/GET_RADIO

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Hi,

On 27 February 2017 at 14:27, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote:
>> Additionally I tried to add a HWSIM_ATTR_WIPHY to report the wiphy
>> index directly without users going through wiphy name to index
>> mapping, but get_wiphy_idx() is internal to cfg80211.  The index is
>> exposed to userspace and is more useful than the name so I wonder if
>> this function should be exported from cfg80211.
>
> Do you really need the address?

As it turns out it can be read from /sys, but I do need it so I can
know what to put in HWSIM_ATTR_ADDR_RECEIVER based on the destination
addr in the frame or if I want to forward the frame to all radios.  Or
is there another way to know that?

>
> I'd actually prefer to *only* have the wiphy index, and I don't really
> see a problem with moving the wiphy_idx from struct
> cfg80211_registered_device to struct wiphy.

Ok, I'll try that.  get_wiphy_idx can stay in place, not sure if I
should just drop it.

By having *only* the wiphy index you don't mean dropping the radio
names altogether?  The don't seem useful but userspace may expect
them.

Best regards



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