From: Cédric Le Goater <clg@xxxxxxxx>
commit 97ef275077932c65b1b8ec5022abd737a9fbf3e0 upstream.
The PowerNV platform has multiple IRQ chips and the xmon command
dumping the state of the XIVE interrupt should only operate on the
XIVE IRQ chip.
Fixes: 5896163f7f91 ("powerpc/xmon: Improve output of XIVE interrupts")
Cc: stable@xxxxxxxxxxxxxxx # v5.4+
Signed-off-by: Cédric Le Goater <clg@xxxxxxxx>
Reviewed-by: Greg Kurz <groug@xxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200306150143.5551-3-clg@xxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/sysdev/xive/common.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -258,11 +258,15 @@ notrace void xmon_xive_do_dump(int cpu)
int xmon_xive_get_irq_config(u32 hw_irq, struct irq_data *d)
{
+ struct irq_chip *chip = irq_data_get_irq_chip(d);
int rc;
u32 target;
u8 prio;
u32 lirq;
+ if (!is_xive_irq(chip))
+ return -EINVAL;
+
rc = xive_ops->get_irq_config(hw_irq, &target, &prio, &lirq);
if (rc) {
xmon_printf("IRQ 0x%08x : no config rc=%d\n", hw_irq, rc);
