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>

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 21c46178b1a6..51504837d8cc 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -45,10 +45,10 @@ bool irq_wait_for_poll(struct irq_desc *desc)
 #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 @@ static int try_one_irq(int irq, struct irq_desc *desc, bool force)
                 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