lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

s390/qdio: fix WARN_ON_ONCE condition

Browse Source 
If HiperSockets Completion Queueing is enabled, qdio always
issues a warning, since the condition is always met.
This patch fixes the condition in WARN_ON_ONCE that was always
true.

Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eugene Crosser 2015-10-06 15:12:29 +02:00 committed by David S. Miller
parent fe5c802882
commit ec6674c638
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/s390/cio/qdio_main.c
View File

@ -319,6 +319,8 @@ static int qdio_siga_output(struct qdio_q *q, unsigned int *busy_bit,
int retries = 0, cc;
unsigned long laob = 0;
WARN_ON_ONCE(aob && ((queue_type(q) != QDIO_IQDIO_QFMT) ||
!q->u.out.use_cq));
if (q->u.out.use_cq && aob != 0) {
fc = QDIO_SIGA_WRITEQ;
laob = aob;
@ -329,8 +331,6 @@ static int qdio_siga_output(struct qdio_q *q, unsigned int *busy_bit,
fc |= QDIO_SIGA_QEBSM_FLAG;
}
again:
WARN_ON_ONCE((aob && queue_type(q) != QDIO_IQDIO_QFMT) ||
(aob && fc != QDIO_SIGA_WRITEQ));
cc = do_siga_output(schid, q->mask, busy_bit, fc, laob);
/* hipersocket busy condition */