[PATCH net 0/2] net: macb: fix the link speed the taprio setup reads

[Aleksei Sviridkin]

Two small fixes in macb_taprio_setup_replace(), both in how it obtains
the link speed it scales the schedule with.

The first: it hands phylink_ethtool_ksettings_get() a stack variable
it never zeroed, while phylink fills only what the link mode provides
and even reads one field back from the caller. The second: the speed
check is written as "<= 0" on a u32, so SPEED_UNKNOWN passes it and
turns into a 1 ns hardware limit that every entry then exceeds.

Compile-tested against net; the driver has no test surface, and no
macb board here.

Aleksei Sviridkin (2):
  net: macb: zero the link settings taprio reads back
  net: macb: reject an unknown link speed in the taprio setup

 drivers/net/ethernet/cadence/macb_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.53.0