net: phy: improve link partner capability detection
authorHeiner Kallweit <hkallweit1@gmail.com>
Fri, 5 Apr 2019 19:23:13 +0000 (21:23 +0200)
committerDavid S. Miller <davem@davemloft.net>
Mon, 8 Apr 2019 22:18:00 +0000 (15:18 -0700)
commit3b8b11f96616c2e763ebcc093b778b309fc07a92
tree40d5b903637dd7da005a08448c67a83df4379ef9
parent8bb309e67f5722b32aa28121c9ad95c10b6801be
net: phy: improve link partner capability detection

genphy_read_status() so far checks phydev->supported, not the actual
PHY capabilities. This can make a difference if the supported speeds
have been limited by of_set_phy_supported() or phy_set_max_speed().

It seems that this issue only affects the link partner advertisements
as displayed by ethtool. Also this patch wouldn't apply to older
kernels because linkmode bitmaps have been introduced recently.
Therefore net-next.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/phy/phy_device.c
include/linux/phy.h