Re: [BUG] with a 4.10.x kernel it's impossible to apply country regulatory rules

Larry Finger <Larry.Finger@xxxxxxxxxxxx> · Sat, 18 Mar 2017 12:41:45 -0500

On 03/14/2017 08:14 PM, Xose Vazquez Perez wrote:
Hi,

Can anyone with a 4.10.x kernel run "iw reg get" to
verified it?

I get with different wireless devices and platforms:
global
country 00: DFS-UNSET
        (2402 - 2472 @ 40), (6, 20), (N/A)
        (2457 - 2482 @ 20), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
        (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
        (5170 - 5250 @ 80), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
        (5250 - 5330 @ 80), (6, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
        (5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
        (5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
        (57240 - 63720 @ 2160), (N/A, 0), (N/A)

It works flawlessly with 4.9.13:
global
country ES: DFS-ETSI
        (2400 - 2483 @ 40), (N/A, 20), (N/A)
        (5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
        (5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
        (5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
        (57000 - 66000 @ 2160), (N/A, 40), (N/A)

phy#0
country AW: DFS-ETSI
        (2402 - 2482 @ 40), (N/A, 20), (N/A)
        (5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW
        (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
        (5490 - 5710 @ 160), (N/A, 27), (0 ms), DFS

I have duplicated your bug and I have bisected it to

commit 2ae0f17df1cd52aafd1ab0415ea1f1dd56dc0e2a
Author: Johannes Berg <johannes.berg@xxxxxxxxx>
Date:   Mon Oct 24 14:40:04 2016 +0200

    genetlink: use idr to track families

This patch is quite extensive and I have no idea which part is failing, thus all 
I can do is report this confirmation.

Larry