Kurt Kanzenbach 882119ff96 1/2] net: axienet: use readx_poll_timeout() in mdio wait function ...

On loaded systems with a preemptible kernel the mdio_wait() function may
report an error while everything is working fine:

axienet_mdio_wait_until_ready():
  axienet_ior() -> chip not ready
  --> interrupt here (other work for some time / chip become ready)
  if (time_before_eq(end, jiffies))
    --> false positive error report

Replace the current code with readx_poll_timeout() which take care
of the situation.

Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

2019-05-20 20:00:46 -04:00

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