sh: nmi_debug support.

[~andy/linux] / arch / sh / kernel / irq.c

diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 3d09062f4682718b43ec607649ca466ddcc6f670..60f8af4497c78fc5fc051947f766966b1a19f3e2 100644 (file)
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -114,24 +114,7 @@ asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs)
 #endif
 
        irq_enter();
-
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
-       /* Debugging check for stack overflow: is there less than 1KB free? */
-       {
-               long sp;
-
-               __asm__ __volatile__ ("and r15, %0" :
-                                       "=r" (sp) : "0" (THREAD_SIZE - 1));
-
-               if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {
-                       printk("do_IRQ: stack overflow: %ld\n",
-                              sp - sizeof(struct thread_info));
-                       dump_stack();
-               }
-       }
-#endif
-
-       irq = irq_demux(intc_evt2irq(irq));
+       irq = irq_demux(irq);
 
 #ifdef CONFIG_IRQSTACKS
        curctx = (union irq_ctx *)current_thread_info();