[PATCH net-next 6/6] net: dsa: b53: remove eee_enabled/eee_active in b53_get_mac_eee()

Andrew Lunn andrew at lunn.ch
Fri Feb 2 05:27:35 PST 2024


On Fri, Feb 02, 2024 at 09:34:10AM +0000, Russell King (Oracle) wrote:
> b53_get_mac_eee() sets both eee_enabled and eee_active, and then
> returns zero.
> 
> dsa_slave_get_eee(), which calls this function, will then continue to
> call phylink_ethtool_get_eee(), which will return -EOPNOTSUPP if there
> is no PHY present, otherwise calling phy_ethtool_get_eee() which in
> turn will call genphy_c45_ethtool_get_eee().
> 
> genphy_c45_ethtool_get_eee() will overwrite eee_enabled and eee_active
> with its own interpretation from the PHYs settings and negotiation
> result.
> 
> Thus, when there is no PHY, dsa_slave_get_eee() will fail with
> -EOPNOTSUPP, meaning eee_enabled and eee_active will not be returned to
> userspace. When there is a PHY, eee_enabled and eee_active will be
> overwritten by phylib, making the setting of these members in
> b53_get_mac_eee() entirely unnecessary.
> 
> Remove this code, thus simplifying b53_get_mac_eee().
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>

Reviewed-by: Andrew Lunn <andrew at lunn.ch>

    Andrew



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