[PATCH net-next v3 0/2] net: phy: sfp/mdio-i2c: defer RollBall probe + fix mii_bus leak

[Petr Wozniak]

This series resends the RollBall bridge probe deferral (a fix for the
regression in commit 8fe125892f40) and adds a related mii_bus leak fix.

Patch 1 fixes a pre-existing mii_bus leak in sfp_i2c_mdiobus_destroy()
that has been present since the helper was introduced in 2022. Patch 2's
new -ENODEV path destroys the MDIO bus via sfp_i2c_mdiobus_destroy(), so
patch 1 is a prerequisite to avoid leaking the bus on that path.

The v2 deferral patch was corrupted in transit and failed to apply; it is
regenerated here against current net-next with no functional change.

v3:
 - Resend: v2 defer patch was corrupted in transit and failed to apply
   (netdev/apply); regenerated against current net-next.
 - Fixed block comment style flagged by checkpatch. No functional change.
 - Added patch 1/2 (sfp: free mii_bus in sfp_i2c_mdiobus_destroy).
v2 (defer):
 - Generalized scope: regression affects boot-inserted and hotplugged
   modules where bridge init exceeds 200 ms; Aleksander Bajkowski
   confirmed FLYPRO SFP-10GT-CS-30M / AQR113C broken when hotplugged.
 - Corrected state machine description (probe runs in SFP_S_INIT after
   SFP_S_WAIT) - Jan Hoffmann.
 - No code changes from v1.
v1: initial submission.

Petr Wozniak (2):
  net: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy
  net: phy: mdio-i2c: defer RollBall bridge probe to PHY discovery

 drivers/net/mdio/mdio-i2c.c   | 15 +++++++++------
 drivers/net/phy/sfp.c         | 23 ++++++++++++++---------
 include/linux/mdio/mdio-i2c.h |  1 +
 3 files changed, 24 insertions(+), 15 deletions(-)


base-commit: b85966adbf5de0668a815c6e3527f87e0c387fb4
-- 
2.51.0