genirq: deprecate __do_IRQ

Two years migration time is enough. Remove the compability cruft.

Add the deprecated warning in kernel/irq/handle.c because marking
__do_IRQ itself is way too noisy.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 13 insertions, 0 deletions

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 20d3b94703a4..63b4550411be 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -344,3 +344,11 @@ Why:	See commits 129f8ae9b1b5be94517da76009ea956e89104ce8 and
         Removal is subject to fixing any remaining bugs in ACPI which may
         cause the thermal throttling not to happen at the right time.
 Who:    Dave Jones <davej@redhat.com>, Matthew Garrett <mjg@redhat.com>
+
+-----------------------------
+
+What:   __do_IRQ all in one fits nothing interrupt handler
+When:   2.6.32
+Why:    __do_IRQ was kept for easy migration to the type flow handlers.
+        More than two years of migration time is enough.
+Who:    Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index a2ee682bca2e..6661704140c7 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -349,6 +349,11 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
 }
 
 #ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
+
+#ifdef CONFIG_ENABLE_WARN_DEPRECATED
+# warning __do_IRQ is deprecated. Please convert to proper flow handlers
+#endif
+
 /**
  * __do_IRQ - original all in one highlevel IRQ handler
  * @irq:        the interrupt number