netdev - Re: [PATCH V3 net-next 1/2] net: wwan: common debugfs base dir for wwan device

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Date:   Sun, 28 Nov 2021 19:53:06 +0300
From:   Sergey Ryazanov <ryazanov.s.a@...il.com>
To:     M Chetan Kumar <m.chetan.kumar@...ux.intel.com>
Cc:     netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>,
        Johannes Berg <johannes@...solutions.net>,
        Loic Poulain <loic.poulain@...aro.org>,
        krishna.c.sudi@...el.com,
        M Chetan Kumar <m.chetan.kumar@...el.com>,
        Intel Corporation <linuxwwan@...el.com>
Subject: Re: [PATCH V3 net-next 1/2] net: wwan: common debugfs base dir for
 wwan device

Hello,

On Sat, Nov 20, 2021 at 7:14 PM M Chetan Kumar
<m.chetan.kumar@...ux.intel.com> wrote:
> This patch set brings in a common debugfs base directory
> i.e. /sys/kernel/debugfs/wwan/ in WWAN Subsystem for a
> WWAN device instance. So that it avoids driver polluting
> debugfs root with unrelated directories & possible name
> collusion.
>
> Having a common debugfs base directory for WWAN drivers
> eases user to match control devices with debugfs entries.
>
> WWAN Subsystem creates dentry (/sys/kernel/debugfs/wwan)
> on module load & removes dentry on module unload.
>
> When driver registers a new wwan device, dentry (wwanX)
> is created for WWAN device instance & on driver unregister
> dentry is removed.
>
> New API is introduced to return the wwan device instance
> dentry so that driver can create debugfs entries under it.

Thank you for taking care of the debugfs implementation for the WWAN core.

Please find my follow-up series that tweak the IOSM/WWAN debugfs
interface a bit:
https://lore.kernel.org/all/20211128125522.23357-1-ryazanov.s.a@gmail.com

-- 
Sergey