diff options
| author | Luiz Angelo Daros de Luca <luizluca@gmail.com> | 2023-12-20 01:52:29 -0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-01-01 13:01:27 +0000 |
| commit | cff9c565e65f3622e8dc1dcc21c1520a083dff35 (patch) | |
| tree | b8648d251495b295f902ebbdabf993f873565029 /include/linux/phy.h | |
| parent | 92de776d20904b51e6dc2d39280c5f143a80f987 (diff) | |
net: mdio: get/put device node during (un)registration
The __of_mdiobus_register() function was storing the device node in
dev.of_node without increasing its reference count. It implicitly relied
on the caller to maintain the allocated node until the mdiobus was
unregistered.
Now, __of_mdiobus_register() will acquire the node before assigning it,
and of_mdiobus_unregister_callback() will be called at the end of
mdio_unregister().
Drivers can now release the node immediately after MDIO registration.
Some of them are already doing that even before this patch.
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/phy.h')
| -rw-r--r-- | include/linux/phy.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index e9e85d347587..ede891776d8b 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -434,6 +434,9 @@ struct mii_bus { /** @shared: shared state across different PHYs */ struct phy_package_shared *shared[PHY_MAX_ADDR]; + + /** @__unregister_callback: called at the last step of unregistration */ + void (*__unregister_callback)(struct mii_bus *bus); }; #define to_mii_bus(d) container_of(d, struct mii_bus, dev) |