Hello,
On Mon, Jan 13, 2014 at 8:35 AM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> On Fri, 2014-01-10 at 15:21 -0500, Alex Gal wrote:
>> The driver ignores BSS_CHANGED_TXPOWER changes.
>> Fix this by calling ACX_TX_POWER when appropriate.
>
> This doesn't really make sense since the driver handles
> IEEE80211_CONF_CHANGE_POWER. If there's something wrong with that, maybe
> that should be fixed?
>
> You should be able to see this with the debugging stuff.
I tried debugging a bit more.
The IEEE80211_CONF_CHANGE_POWER never reaches the driver since in
/net/mac80211/main.c:ieee80211_hw_config:
if (!local->use_chanctx)
changed |= ieee80211_hw_conf_chan(local);
else
changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL |
IEEE80211_CONF_CHANGE_POWER);
only the else statement is executed.
However, the BSS_CHANGED_TXPOWER gets sent to the driver so I thought,
incorrectly,
that would be the the fix.
This behavior happens in kernel 3.10 but I suspect the same to happen
in mainline, unfortunately, I cannot test it.
Please let me know how I can debug this further since I am not
familiar with this code.
Cheers,
Alex
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