Re: [PATCH net-next 05/12] dpll: Add notifier chain for dpll events
From: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Date: 2026-01-09 16:12:36
Also in:
intel-wired-lan, linux-devicetree, linux-rdma, lkml
On 08/01/2026 18:23, Ivan Vecera wrote:
From: Petr Oros <redacted>
Currently, the DPLL subsystem reports events (creation, deletion, changes)
to userspace via Netlink. However, there is no mechanism for other kernel
components to be notified of these events directly.
Add a raw notifier chain to the DPLL core protected by dpll_lock. This
allows other kernel subsystems or drivers to register callbacks and
receive notifications when DPLL devices or pins are created, deleted,
or modified.
Define the following:
- Registration helpers: {,un}register_dpll_notifier()
- Event types: DPLL_DEVICE_CREATED, DPLL_PIN_CREATED, etc.
- Context structures: dpll_{device,pin}_notifier_info to pass relevant
data to the listeners.
The notification chain is invoked alongside the existing Netlink event
generation to ensure in-kernel listeners are kept in sync with the
subsystem state.
Co-developed-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Petr Oros <redacted>LGTM, Thanks! Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>