Hi Arnd,

On Thu, Jan 26, 2023 at 05:36:36PM +0100, Arnd Bergmann wrote:

From: Arnd Bergmann <arnd@arndb.de>

The driver now directly calls into ethtool code, which fails if
ethtool is disabled:

arm-linux-gnueabi-ld: drivers/net/ethernet/mscc/ocelot_stats.o: in function `ocelot_port_get_pause_stats':
ocelot_stats.c:(.text+0xe54): undefined reference to `ethtool_aggregate_pause_stats'
arm-linux-gnueabi-ld: drivers/net/ethernet/mscc/ocelot_stats.o: in function `ocelot_port_get_rmon_stats':
ocelot_stats.c:(.text+0x1090): undefined reference to `ethtool_aggregate_rmon_stats'
arm-linux-gnueabi-ld: drivers/net/ethernet/mscc/ocelot_stats.o: in function `ocelot_port_get_eth_ctrl_stats':
ocelot_stats.c:(.text+0x1228): undefined reference to `ethtool_aggregate_ctrl_stats'
arm-linux-gnueabi-ld: drivers/net/ethernet/mscc/ocelot_stats.o: in function `ocelot_port_get_eth_mac_stats':
ocelot_stats.c:(.text+0x13a8): undefined reference to `ethtool_aggregate_mac_stats'
arm-linux-gnueabi-ld: drivers/net/ethernet/mscc/ocelot_stats.o: in function `ocelot_port_get_eth_phy_stats':
ocelot_stats.c:(.text+0x1540): undefined reference to `ethtool_aggregate_phy_stats'

Add a dependency on ETHTOOL_NETLINK, since that controls the
compilation of the ethtool stats code. It would probably be possible
to have a more fine-grained symbol there, but in practice this is
already required.

Fixes: 6505b6805655 ("net: mscc: ocelot: add MAC Merge layer support for VSC9959")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---

Thanks for the patch and sorry for the breakage. This is now fixed by commit:
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=9179f5fe4173