[PATCH 10/14] scsi: myrb: Remove WARN_ON(in_interrupt()).

Sebastian Andrzej Siewior
2020-11-26T13:30:39Z

From: "Ahmed S. Darwish" <a.darwish@linutronix.de>

The in_interrupt() macro is ill-defined and does not provide what the
name suggests. The usage especially in driver code is deprecated and a
tree-wide effort to clean up and consolidate the (ab)usage of
in_interrupt() and related checks is happening.

In this case the check covers only parts of the contexts in which these
functions cannot be called. It fails to detect preemption or interrupt
disabled invocations.

As wait_for_completion() already contains a broad variety of checks
(always enabled or debug option dependent) which cover all invalid
conditions already, there is no point in having extra inconsistent
warnings in drivers.

Just remove it.

Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Hannes Reinecke <hare@kernel.org>
---
drivers/scsi/myrb.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/myrb.c b/drivers/scsi/myrb.c
index 5fa0f4ed6565f..3d8e91c07dc77 100644
--- a/drivers/scsi/myrb.c
+++ b/drivers/scsi/myrb.c
@@ -194,7 +194,6 @@ static unsigned short myrb_exec_cmd(struct myrb_hba *cb,
cb->qcmd(cb, cmd_blk);
spin_unlock_irqrestore(&cb->queue_lock, flags);

- WARN_ON(in_interrupt());
wait_for_completion(&cmpl);
return cmd_blk->status;
}
--
2.29.2