linux-kernel - Re: [PATCH v2 0/8] wifi: ath12k: handle change_vif

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Message-Id: <D7KFI4INC6NC.3JY96TZGRJCX7@gmail.com>
Date: Wed, 05 Feb 2025 11:09:55 +0100
From: "Nicolas Escande" <nico.escande@...il.com>
To: "Aditya Kumar Singh" <aditya.kumar.singh@....qualcomm.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>, "Vasanthakumar Thiagarajan"
 <vasanthakumar.thiagarajan@....qualcomm.com>
Subject: Re: [PATCH v2 0/8] wifi: ath12k: handle change_vif_links() callback

On Tue Feb 4, 2025 at 6:05 PM CET, Aditya Kumar Singh wrote:
> Currently, links in an interface are allocated during channel assignment
> via assign_vif_chanctx(). Conversely, links are deleted during channel
> unassignment via unassign_vif_chanctx(). However, deleting links during
> channel unassignment does not comply with mac80211 link handling.
> Therefore, this process should be managed within change_vif_links().
>
> This series aims to add support to handle links in change_vif_links()
> callback.
>
> Patches 1-2 are making debug infra to work without device info.
>
> Patches 3-8 are the ones changing the code to handle as mentioned above.
>
> NOTE:
> * A new ath12k-check warning comes which probably needs to be added to
> ignore list
>
> drivers/net/wireless/ath/ath12k/debug.c:69: Prefer [subsystem eg: netdev]_dbg([subsystem]dev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...
>
> This is because, since device info is not known can not use netdev_ or dev_
> dbg family. pr_debug() is an option but that will require DYNAMIC_DEBUG
> and then ath12k needs to be probed with dyndbg=+p which we don't want in
> ath. Hence, only option left is to use printk() directly.
>
The issue seems to be resolved. Thanks a lot !

Tested-by: Nicolas Escande <nico.escande@...il.com>
Tested-on: WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1.97421.5