Re: [PATCH net v2 1/3] net: bcmgenet: synchronize EXT_RGMII_OOB_CTRL access

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On 4/25/24 15:27, Doug Berger wrote:
The EXT_RGMII_OOB_CTRL register can be written from different
contexts. It is predominantly written from the adjust_link
handler which is synchronized by the phydev->lock, but can
also be written from a different context when configuring the
mii in bcmgenet_mii_config().

The chances of contention are quite low, but it is conceivable
that adjust_link could occur during resume when WoL is enabled
so use the phydev->lock synchronizer in bcmgenet_mii_config()
to be sure.

Fixes: afe3f907d20f ("net: bcmgenet: power on MII block for all MII modes")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Doug Berger <opendmb@xxxxxxxxx>

Acked-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
--
Florian

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