Files
linux/drivers
Mathieu Othacehe c92d6089d8 net: cadence: macb: Fix a possible deadlock in macb_halt_tx.
There is a situation where after THALT is set high, TGO stays high as
well. Because jiffies are never updated, as we are in a context with
interrupts disabled, we never exit that loop and have a deadlock.

That deadlock was noticed on a sama5d4 device that stayed locked for days.

Use retries instead of jiffies so that the timeout really works and we do
not have a deadlock anymore.

Fixes: e86cd53afc ("net/macb: better manage tx errors")
Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250509121935.16282-1-othacehe@gnu.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-12 18:39:38 -07:00
..
2025-04-22 16:06:05 +09:00
2025-04-11 17:32:38 -07:00
2025-04-08 19:30:58 +02:00
2025-04-18 10:05:49 -04:00