linux-kernel - Re: [PATCH net] dpll: Prevent duplicate registrations

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Message-Id: 
 <176909880785.1793166.12309152684797538271.git-patchwork-notify@kernel.org>
Date: Thu, 22 Jan 2026 16:20:07 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Ivan Vecera <ivecera@...hat.com>
Cc: netdev@...r.kernel.org, vadim.fedorenko@...ux.dev,
 arkadiusz.kubalewski@...el.com, jiri@...nulli.us, davem@...emloft.net,
 michal.michalik@...el.com, milena.olech@...el.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] dpll: Prevent duplicate registrations

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Wed, 21 Jan 2026 14:00:11 +0100 you wrote:
> Modify the internal registration helpers dpll_xa_ref_{dpll,pin}_add()
> to reject duplicate registration attempts.
> 
> Previously, if a caller attempted to register the same pin multiple
> times (with the same ops, priv, and cookie) on the same device, the core
> silently increments the reference count and return success. This behavior
> is incorrect because if the caller makes these duplicate registrations
> then for the first one dpll_pin_registration is allocated and for others
> the associated dpll_pin_ref.refcount is incremented. During the first
> unregistration the associated dpll_pin_registration is freed and for
> others WARN is fired.
> 
> [...]

Here is the summary with links:
  - [net] dpll: Prevent duplicate registrations
    https://git.kernel.org/netdev/net/c/f3ddbaaaaf4d

You are awesome, thank you!
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