net: stmmac: Get the TC number of net_device by netdev_get_num_tc()

netdev_get_num_tc() is the right method, we should not access
net_device.num_tc directly.

Signed-off-by: Furong Xu <0x1207@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://patch.msgid.link/6298463f4655a76faf94e4273a4205c13ca17c77.1730449003.git.0x1207@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Furong Xu 2024-11-01 21:31:32 +08:00 • committed by Jakub Kicinski
commit 2558fe30ae