[PATCH 4.7 183/184] genirq/msi: Fix broken debug output

From: Greg Kroah-Hartman
Date: Thu Sep 22 2016 - 13:53:54 EST


4.7-stable review patch. If anyone has any objections, please let me know.

------------------

From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

commit 4364e1a29be16b2783c0bcbc263f61236af64281 upstream.

virq is not required to be the same for all msi descs. Use the base irq number
from the desc in the debug printk.

Reported-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
kernel/irq/msi.c | 1 +
1 file changed, 1 insertion(+)

--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -352,6 +352,7 @@ int msi_domain_alloc_irqs(struct irq_dom
ops->msi_finish(&arg, 0);

for_each_msi_entry(desc, dev) {
+ virq = desc->irq;
if (desc->nvec_used == 1)
dev_dbg(dev, "irq %d for MSI\n", virq);
else