genirq: Add IRQ_INPROGRESS to core
We need to maintain the flag for now in both fields status and istate.
Add a CONFIG_GENERIC_HARDIRQS_NO_COMPAT switch to allow testing w/o
the status one. Wrap the access to status IRQ_INPROGRESS in a inline
which can be turned of with CONFIG_GENERIC_HARDIRQS_NO_COMPAT along
with the define.
There is no reason that anything outside of core looks at this. That
needs some modifications, but we'll get there.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 21c4617..5150483 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -45,10 +45,10 @@
#ifdef CONFIG_SMP
do {
raw_spin_unlock(&desc->lock);
- while (desc->status & IRQ_INPROGRESS)
+ while (desc->istate & IRQS_INPROGRESS)
cpu_relax();
raw_spin_lock(&desc->lock);
- } while (desc->status & IRQ_INPROGRESS);
+ } while (desc->istate & IRQS_INPROGRESS);
/* Might have been disabled in meantime */
return !(desc->status & IRQ_DISABLED) && desc->action;
#else
@@ -88,7 +88,7 @@
goto out;
/* Already running on another processor */
- if (desc->status & IRQ_INPROGRESS) {
+ if (desc->istate & IRQS_INPROGRESS) {
/*
* Already running: If it is shared get the other
* CPU to go looking for our mystery interrupt too