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Date: Thu, 16 Apr 2020 15:24:35 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Michael Mueller <mimu@...ux.ibm.com>, Heiko Carstens <heiko.carstens@...ibm.com>, Vasily Gorbik <gor@...ux.ibm.com> Subject: [PATCH 5.5 224/257] s390/diag: fix display of diagnose call statistics From: Michael Mueller <mimu@...ux.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@...r.kernel.org Signed-off-by: Michael Mueller <mimu@...ux.ibm.com> Reviewed-by: Heiko Carstens <heiko.carstens@...ibm.com> Signed-off-by: Vasily Gorbik <gor@...ux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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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