Commit 34298422 authored Mar 28, 2019 by Julian Wiedmann Committed by Martin Schwidefsky Apr 10, 2019

s390/qdio: fix output of DSCI value in debug file



The DSCI is a 1-byte field, placed at the start of an u32. So when
printing it to a queue's debug state, limit the output to the part
that's actually occupied by the DSCI.
When the DSCI is set this gives us the expected output of '1', rather
than the current (obscure) value of '16777216'.

Suggested-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 093ddccb

drivers/s390/cio/qdio_debug.c

+2 −2

Original line number	Original line	Diff line number	Diff line
	@@ -128,8 +128,8 @@ static int qstat_show(struct seq_file m, void v)
	seq_printf(m, "polling: %d ack start: %d ack count: %d\n",		seq_printf(m, "polling: %d ack start: %d ack count: %d\n",
	q->u.in.polling, q->u.in.ack_start,		q->u.in.polling, q->u.in.ack_start,
	q->u.in.ack_count);		q->u.in.ack_count);
	seq_printf(m, "DSCI: %d IRQs disabled: %u\n",		seq_printf(m, "DSCI: %x IRQs disabled: %u\n",
	(u32 )q->irq_ptr->dsci,		(u8 )q->irq_ptr->dsci,
	test_bit(QDIO_QUEUE_IRQS_DISABLED,		test_bit(QDIO_QUEUE_IRQS_DISABLED,
	&q->u.in.queue_irq_state));		&q->u.in.queue_irq_state));
	}		}