linux-kernel - Re: [PATCH 0/8] wifi: ath12k: handle change_vif

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Message-ID: <076014d2-eaaa-44be-81fc-a8f1eb0c2ac9@oss.qualcomm.com>
Date: Tue, 4 Feb 2025 15:53:34 +0530
From: Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>
To: Nicolas Escande <nico.escande@...il.com>, Kalle Valo <kvalo@...nel.org>,
        Jeff Johnson <jjohnson@...nel.org>
Cc: linux-wireless@...r.kernel.org, ath12k@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/8] wifi: ath12k: handle change_vif_links() callback

On 2/4/25 15:32, Nicolas Escande wrote:
> Hello,
> 
> When applying this series I am no longer able to start an AP on a DFS channel.
> (I don't know specifically which patch though)
> 

Thanks for reporting this. I think non-DFS channel should be working 
fine right?

Anyways, I'm able to repro the issue locally. Let me investigate further 
and come back.

> After the initial CAC period I get the following kernel message:
> 	[   45.248441] ath12k_pci 0003:01:00.0: cannot install key for non-existent peer 3a:07:16:d8:00:08
> And then hostapd goes in failed state:
> 	wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
> 	ACS: Automatic channel selection started, this may take a bit
> 	wlan0: interface state COUNTRY_UPDATE->ACS
> 	wlan0: ACS-STARTED
> 	wlan0: ACS-COMPLETED freq=5620 channel=124
> 	wlan0: interface state ACS->DFS
> 	wlan0: DFS-CAC-START freq=5620 chan=124 sec_chan=1, width=2, seg0=114, seg1=0, cac_time=5s
> 	wlan0: DFS-CAC-COMPLETED success=1 freq=5620 ht_enabled=0 chan_offset=0 chan_width=5 cf1=5570 cf2=0 radar_detected=0
> 	wlan0: nl80211: kernel reports: key addition failed
> 	Interface initialization failed
> 	wlan0: interface state DFS->DISABLED
> 	wlan0: AP-DISABLED
> 
> Maybe I missed something ? Is there another series this one depends upon that I
> should have applied before ?

No known dependency as such.

-- 
Aditya