On 9/19/22 5:48 PM, Geert Uytterhoeven wrote:
> Since commit 744d23c71af39c7d ("net: phy: Warn about incorrect
> mdio_bus_phy_resume() state"), a warning splat is printed during system
> resume with Wake-on-LAN disabled:
>
> WARNING: CPU: 0 PID: 626 at drivers/net/phy/phy_device.c:323 mdio_bus_phy_resume+0xbc/0xe4
>
> As the Renesas SuperH Ethernet driver already calls phy_{stop,start}()
> in its suspend/resume callbacks, it is sufficient to just mark the MAC
> responsible for managing the power state of the PHY.
>
> Fixes: fba863b816049b03 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
[...]
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 67ade78fb7671c4a..7fd8828d3a846169 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -2029,6 +2029,8 @@ static int sh_eth_phy_init(struct net_device *ndev)
> if (mdp->cd->register_type != SH_ETH_REG_GIGABIT)
> phy_set_max_speed(phydev, SPEED_100);
>
> + /* Indicate that the MAC is responsible for managing PHY PM */
> + phydev->mac_managed_pm = true;
Again, this field is declared as *unsigned*...
> phy_attached_info(phydev);
[...]
MBR, Sergey
