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Subject[PATCH 5.4 196/232] s390/diag: fix display of diagnose call statistics
Date
From: Michael Mueller <mimu@linux.ibm.com>

commit 6c7c851f1b666a8a455678a0b480b9162de86052 upstream.

Show the full diag statistic table and not just parts of it.

The issue surfaced in a KVM guest with a number of vcpus
defined smaller than NR_DIAG_STAT.

Fixes: 1ec2772e0c3c ("s390/diag: add a statistic for diagnose calls")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Mueller <mimu@linux.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/s390/kernel/diag.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/s390/kernel/diag.c
+++ b/arch/s390/kernel/diag.c
@@ -84,7 +84,7 @@ static int show_diag_stat(struct seq_fil

static void *show_diag_stat_start(struct seq_file *m, loff_t *pos)
{
- return *pos <= nr_cpu_ids ? (void *)((unsigned long) *pos + 1) : NULL;
+ return *pos <= NR_DIAG_STAT ? (void *)((unsigned long) *pos + 1) : NULL;
}

static void *show_diag_stat_next(struct seq_file *m, void *v, loff_t *pos)

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