net/ethtool/ioctl: return -EOPNOTSUPP if we have no phy stats
authorDaniil Tatianin <d-tatianin@yandex-team.ru>
Mon, 26 Dec 2022 11:48:23 +0000 (14:48 +0300)
committerDavid S. Miller <davem@davemloft.net>
Wed, 28 Dec 2022 11:55:24 +0000 (11:55 +0000)
commit9deb1e9fb88b1120a908676fa33bdf9e2eeaefce
tree7a0c536e3fc4da92da35d515b1fa071460f63758
parent8ac718cc0e36ef4046e2d6349727fecddc13ab9c
net/ethtool/ioctl: return -EOPNOTSUPP if we have no phy stats

It's not very useful to copy back an empty ethtool_stats struct and
return 0 if we didn't actually have any stats. This also allows for
further simplification of this function in the future commits.

Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ethtool/ioctl.c