From: Cédric Le Goater clg@kaod.org
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@vger.kernel.org # v5.4+ Signed-off-by: Cédric Le Goater clg@kaod.org Reviewed-by: Greg Kurz groug@kaod.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20200306150143.5551-3-clg@kaod.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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);