Re: [PATCH] wireless: change cfg80211 regulatory domain info as debug messages

From: Stefan Lippers-Hollmann
Date: Sun Nov 15 2015 - 13:26:06 EST


On 2015-11-15, Dave Young wrote:
> cfg80211 module prints a lot of messages like below. Actually printing
> once is acceptable but sometimes it will print again and again, it looks
> very annoying. It is better to change these detail messages to debugging
> only.

It is a lot of info, easily repeated 3 times on boot, but it's also the
only real chance to determine why you ended up with the regulatory
domain settings you got, rather than just the values itself. Given that
a lot (most?) of officially shipping wireless devices are misconfigured
(wrong EEPROM regdom settings for the region they're sold in) and
considering that the limits can even change at runtime (IEEE 802.11d),
it is imho quite important not just to be able what the current
restrictions (iw reg get) are, but also why the kernel settled on those.

Stefan Lippers-Hollmann
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