um: migrate from __do_IRQ() to generic_handle_irq()

This patch removes __do_IRQ() from user mode linux.  __do_IRQ is deprecated.

Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 7 insertions, 11 deletions

diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index ffe0934a3cc..50d6aa20c35 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -120,6 +120,9 @@ config SMP
 
           If you don't know what to do, say N.
 
+config GENERIC_HARDIRQS_NO__DO_IRQ
+        def_bool y
+
 config NR_CPUS
         int "Maximum number of CPUs (2-32)"
         range 2 32
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index a746e3037a5..3f0ac9e0c96 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -334,7 +334,7 @@ unsigned int do_IRQ(int irq, struct uml_pt_regs *regs)
 {
         struct pt_regs *old_regs = set_irq_regs((struct pt_regs *)regs);
         irq_enter();
-        __do_IRQ(irq);
+        generic_handle_irq(irq);
         irq_exit();
         set_irq_regs(old_regs);
         return 1;
@@ -391,17 +391,10 @@ void __init init_IRQ(void)
 {
         int i;
 
-        irq_desc[TIMER_IRQ].status = IRQ_DISABLED;
-        irq_desc[TIMER_IRQ].action = NULL;
-        irq_desc[TIMER_IRQ].depth = 1;
-        irq_desc[TIMER_IRQ].chip = &SIGVTALRM_irq_type;
-        enable_irq(TIMER_IRQ);
+        set_irq_chip_and_handler(TIMER_IRQ, &SIGVTALRM_irq_type, handle_edge_irq);
+
         for (i = 1; i < NR_IRQS; i++) {
-                irq_desc[i].status = IRQ_DISABLED;
-                irq_desc[i].action = NULL;
-                irq_desc[i].depth = 1;
-                irq_desc[i].chip = &normal_irq_type;
-                enable_irq(i);
+                set_irq_chip_and_handler(i, &normal_irq_type, handle_edge_irq);
         }
 }