| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.5 241/257] powerpc/xive: Fix xmon support on the PowerNV platform | Date | Thu, 16 Apr 2020 15:24:52 +0200 |
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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);
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