IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

[powerpc.git] / arch / x86_64 / kernel / irq.c

diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c
index 506f27c..b8a407f 100644 (file)
--- a/arch/x86_64/kernel/irq.c
+++ b/arch/x86_64/kernel/irq.c
@@ -103,7 +103,9 @@ skip:
  * handlers).
  */
 asmlinkage unsigned int do_IRQ(struct pt_regs *regs)
-{      
+{
+       struct pt_regs *old_regs = set_irq_regs(regs);
+
        /* high bit used in ret_from_ code  */
        unsigned vector = ~regs->orig_rax;
        unsigned irq;
@@ -121,9 +123,10 @@ asmlinkage unsigned int do_IRQ(struct pt_regs *regs)
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
        stack_overflow_check(regs);
 #endif
-       generic_handle_irq(irq, regs);
+       generic_handle_irq(irq);
        irq_exit();
 
+       set_irq_regs(old_regs);
        return 1;
 }