[PATCH 2/3] x86, irq: Clarify "No irq handler" message

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Previously we printed, e.g.,

  do_IRQ: 0.242 No irq handler for vector (irq -1)

There's no clue about what "0.242" means, and the IRQ number, which is the
important generic information used by drivers and /proc/interrupts, is
almost an afterthought.

Change the format to this:

  No handler for IRQ -1 (CPU 0 vector 0xf2)

Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
---
 arch/x86/kernel/irq.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 2949c6e..3c6b069 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -224,9 +224,8 @@ __visible unsigned int __irq_entry do_IRQ(struct pt_regs *regs)
 		ack_APIC_irq();
 
 		if (irq != IRQ_RETRIGGERED) {
-			pr_emerg_ratelimited("%s: %d.%d No irq handler for vector (irq %d)\n",
-					     __func__, smp_processor_id(),
-					     vector, irq);
+			pr_emerg_ratelimited("No handler for IRQ %d (CPU %d vector %#x)\n",
+					     irq, smp_processor_id(), vector);
 		} else {
 			__this_cpu_write(vector_irq[vector], IRQ_UNDEFINED);
 		}

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