Public bug reported:
When I set iw reg to CN, only channels 149 and above are enabled.
```
# iw reg get
global
country CN: DFS-FCC
(2402 - 2482 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 59400 @ 2160), (N/A, 28), (N/A)
(59400 - 63720 @ 2160), (N/A, 44), (N/A)
(63720 - 65880 @ 2160), (N/A, 28), (N/A)
```
But this does not match the actual regulations:
https://en.wikipedia.org/wiki/List_of_WLAN_channels#5_GHz_or_5.8_GHz_(802.11a/h/j/n/ac/ax)
China government allow to use 36, 40, 44, 48, 52, 56, 60, 64 channels for many
years, see https://en.wikipedia.org/wiki/List_of_WLAN_channels
Related issues:
https://github.com/raspberrypi/firmware/issues/1359
https://github.com/raspberrypi/firmware/issues/1246
** Affects: wireless-regdb (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1919061
Title:
wifi channel list for China (CN) on 5GHz band is wrong
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