[PATCH 5/6] SUNHME: Workaround ancient hang on U1's

[Ben Collins]

This work around has been in use by almost any distribution trying to
support sparc64 since at least 2002. Without it, sunhme hangs fairly
quickly on UltraSPARC 1's.

Dave, I know it's not in the kernel because it isn't a "fix", but given
that we haven't seen a fix in more than 5 years, can we get this out of my
tree please? :)

CC: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Ben Collins <bcollins@xxxxxxxxxx>
---
 drivers/net/sunhme.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index 51c3fe2..5753298 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -1969,6 +1969,7 @@ static void happy_meal_tx(struct happy_meal *hp)
 	}
 	hp->tx_old = elem;
 	TXD((">"));
+	udelay(1);
 
 	if (netif_queue_stopped(dev) &&
 	    TX_BUFFS_AVAIL(hp) > (MAX_SKB_FRAGS + 1))
-- 
1.5.1.4

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/