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authorThomas Gleixner <tglx@linutronix.de>2011-02-25 17:17:18 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-25 17:17:18 +0100
commit1204e95689f9fbd245a4ce5c1b0cd0a9b77f8d25 (patch)
tree7dafda97ffb9156853904873c1397ac2d2b5b9d7 /kernel/irq/handle.c
parentfd4afaf33313d94f548cb09129ecba3dbab62931 (diff)
downloadlinux-stericsson-1204e95689f9fbd245a4ce5c1b0cd0a9b77f8d25.tar.gz
genirq: Make warning in handle_percpu_event useful
The WARN_ON_ONCE in handle_percpu_event() which emits a warning when an action handler returns with interrupts enabled is not really useful. It does not reveal the interrupt number and handler function which caused it. Make it WARN_ONCE() and add the information. Reported-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/handle.c')
-rw-r--r--kernel/irq/handle.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index e099e9e9de0b..b110c835e070 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -64,7 +64,8 @@ handle_irq_event_percpu(struct irq_desc *desc, struct irqaction *action)
res = action->handler(irq, action->dev_id);
trace_irq_handler_exit(irq, action, res);
- if (WARN_ON_ONCE(!irqs_disabled()))
+ if (WARN_ONCE(!irqs_disabled(),"irq %u handler %pF enabled interrupts\n",
+ irq, action->handler))
local_irq_disable();
switch (res) {