Subject: net: wireless: ralink: RT2X00: regression, hostapd do not work anymore on 6.18.33 (work on 6.18.26)

From: Corentin Labbe <[email-masked]>
Date: Sun, 31 May 2026 16:11:07 +0200

Hello

I have an hostapd setup with a 
01:00.0 Network controller: Ralink corp. RT2790 Wireless 802.11n 1T/2R PCIe

The setup work fine on 6.18.26-gentoo
It breaks on 6.18.33-gentoo

I found an hint in dmesg:
On 6.18.26-gentoo I see:
May 31 15:48:45 trash01 kernel: ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 0003 detected

On 6.18.33-gentoo I see:
May 31 15:22:57 trash01 kernel: ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 0006 detected

The RF chipset seems badly detected.

Regards