On 18.03.2021 15:23, Michael Walle wrote:
> at803x_aneg_done() is pretty much dead code since the patch series
> "net: phy: improve and simplify phylib state machine" [1]. Remove it.
> 

Well, it's not dead, it's resting .. There are few places where
phy_aneg_done() is used. So you would need to explain:
- why these users can't be used with this PHY driver
- or why the aneg_done callback isn't needed here and the
  genphy_aneg_done() fallback is sufficient


> [1] 
> https://lore.kernel.org/netdev/922c223b-7bc0-e0ec-345d-2034b796a...@gmail.com/
> 
> Suggested-by: Vladimir Oltean <olte...@gmail.com>
> Signed-off-by: Michael Walle <mich...@walle.cc>
> ---
>  drivers/net/phy/at803x.c | 31 -------------------------------
>  1 file changed, 31 deletions(-)
> 
> diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
> index c2aa4c92edde..d7799beb811c 100644
> --- a/drivers/net/phy/at803x.c
> +++ b/drivers/net/phy/at803x.c
> @@ -751,36 +751,6 @@ static void at803x_link_change_notify(struct phy_device 
> *phydev)
>       }
>  }
>  
> -static int at803x_aneg_done(struct phy_device *phydev)
> -{
> -     int ccr;
> -
> -     int aneg_done = genphy_aneg_done(phydev);
> -     if (aneg_done != BMSR_ANEGCOMPLETE)
> -             return aneg_done;
> -
> -     /*
> -      * in SGMII mode, if copper side autoneg is successful,
> -      * also check SGMII side autoneg result
> -      */
> -     ccr = phy_read(phydev, AT803X_REG_CHIP_CONFIG);
> -     if ((ccr & AT803X_MODE_CFG_MASK) != AT803X_MODE_CFG_SGMII)
> -             return aneg_done;
> -
> -     /* switch to SGMII/fiber page */
> -     phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr & ~AT803X_BT_BX_REG_SEL);
> -
> -     /* check if the SGMII link is OK. */
> -     if (!(phy_read(phydev, AT803X_PSSR) & AT803X_PSSR_MR_AN_COMPLETE)) {
> -             phydev_warn(phydev, "803x_aneg_done: SGMII link is not ok\n");
> -             aneg_done = 0;
> -     }
> -     /* switch back to copper page */
> -     phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL);
> -
> -     return aneg_done;
> -}
> -
>  static int at803x_read_status(struct phy_device *phydev)
>  {
>       int ss, err, old_link = phydev->link;
> @@ -1198,7 +1168,6 @@ static struct phy_driver at803x_driver[] = {
>       .resume                 = at803x_resume,
>       /* PHY_GBIT_FEATURES */
>       .read_status            = at803x_read_status,
> -     .aneg_done              = at803x_aneg_done,
>       .config_intr            = &at803x_config_intr,
>       .handle_interrupt       = at803x_handle_interrupt,
>       .get_tunable            = at803x_get_tunable,
> 

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