From 5a645a3f2dfea121b8645216d69ce86bde99fd5d Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 15 Jun 2009 06:18:38 -0400 Subject: [PATCH] --- yaml --- r: 153870 b: refs/heads/master c: 6f10fdabdce356aac3c948e659f39b6f1e2f7382 h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/arch/blackfin/kernel/irqchip.c | 32 +++++++++++++++------------- 2 files changed, 18 insertions(+), 16 deletions(-) diff --git a/[refs] b/[refs] index 1ffa93cd5550..39d097fc5328 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 46f288a0f983401ebadb918751d342cbf819cde5 +refs/heads/master: 6f10fdabdce356aac3c948e659f39b6f1e2f7382 diff --git a/trunk/arch/blackfin/kernel/irqchip.c b/trunk/arch/blackfin/kernel/irqchip.c index 8abb642283b4..7378440792a4 100644 --- a/trunk/arch/blackfin/kernel/irqchip.c +++ b/trunk/arch/blackfin/kernel/irqchip.c @@ -88,6 +88,22 @@ int show_interrupts(struct seq_file *p, void *v) } #endif +#ifdef CONFIG_DEBUG_STACKOVERFLOW +static void check_stack_overflow(int irq) +{ + /* Debugging check for stack overflow: is there less than STACK_WARN free? */ + long sp = __get_SP() & (THREAD_SIZE - 1); + + if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) { + dump_stack(); + pr_emerg("irq%i: possible stack overflow only %ld bytes free\n", + irq, sp - sizeof(struct thread_info)); + } +} +#else +static inline void check_stack_overflow(int irq) { } +#endif + /* * do_IRQ handles all hardware IRQs. Decoded IRQs should not * come via this function. Instead, they should provide their @@ -105,21 +121,7 @@ asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs) irq_enter(); -#ifdef CONFIG_DEBUG_STACKOVERFLOW - /* Debugging check for stack overflow: is there less than STACK_WARN free? */ - { - long sp; - - sp = __get_SP() & (THREAD_SIZE-1); - - if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) { - dump_stack(); - printk(KERN_EMERG "%s: possible stack overflow while handling irq %i " - " only %ld bytes free\n", - __func__, irq, sp - sizeof(struct thread_info)); - } - } -#endif + check_stack_overflow(irq); /* * Some hardware gives randomly wrong interrupts. Rather