Re: [v2][PATCH] net: phy: Don't WARN for PHY_READY state in mdio_bus_phy_resume()

From: Florian Fainelli
Date: Fri Aug 19 2022 - 22:57:55 EST




On 8/19/2022 1:24 AM, Xiaolei Wang wrote:
For some MAC drivers, they set the mac_managed_pm to true in its
->ndo_open() callback. So before the mac_managed_pm is set to true,
we still want to leverage the mdio_bus_phy_suspend()/resume() for
the phy device suspend and resume. In this case, the phy device is
in PHY_READY, and we shouldn't warn about this. It also seems that
the check of mac_managed_pm in WARN_ON is redundant since we already
check this in the entry of mdio_bus_phy_resume(), so drop it.

Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")
Signed-off-by: Xiaolei Wang <xiaolei.wang@xxxxxxxxxxxxx>

Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>

I see the use case you have and it does make sense to me, thanks!
--
Florian