tree f2a3286e18ddd1a31e1a4a6e6cd8d451b9db3b32
parent db115037bb57cdfe97078b13da762213f7980e81
author Jonas Jensen <jonas.jensen@gmail.com> 1408976531 +0200
committer David S. Miller <davem@davemloft.net> 1409012738 -0700

net: moxa: clear DESC1 on ndo_start_xmit()

TX buffer length is not cleared on ndo_start_xmit().
Failing to do so can bug/hang the controller and
cause TX interrupts to stop altogether.

Remove the readl() and compute a new value for DESC1.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=69031

Signed-off-by: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>