1/2] net: axienet: use readx_poll_timeout() in mdio wait function

Browse source

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>

...

This commit is contained in:

Kurt Kanzenbach 2019-05-19 19:59:36 +02:00 • committed by David S. Miller

parent fa2c52be71

commit 882119ff96

2 changed files with 11 additions and 10 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

drivers/net/ethernet/xilinx/xilinx_axienet.h

View file

16

drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c

View file