diff options
Diffstat (limited to 'arch/sh/kernel/irq.c')
| -rw-r--r-- | arch/sh/kernel/irq.c | 28 |
1 files changed, 5 insertions, 23 deletions
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c index 3d09062f468..eac7da772fc 100644 --- a/arch/sh/kernel/irq.c +++ b/arch/sh/kernel/irq.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/kernel_stat.h> #include <linux/seq_file.h> +#include <linux/ftrace.h> #include <asm/processor.h> #include <asm/machvec.h> #include <asm/uaccess.h> @@ -106,7 +107,7 @@ static union irq_ctx *hardirq_ctx[NR_CPUS] __read_mostly; static union irq_ctx *softirq_ctx[NR_CPUS] __read_mostly; #endif -asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs) +asmlinkage __irq_entry int do_IRQ(unsigned int irq, struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); #ifdef CONFIG_IRQSTACKS @@ -114,24 +115,7 @@ 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(); @@ -182,11 +166,9 @@ asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs) } #ifdef CONFIG_IRQSTACKS -static char softirq_stack[NR_CPUS * THREAD_SIZE] - __attribute__((__section__(".bss.page_aligned"))); +static char softirq_stack[NR_CPUS * THREAD_SIZE] __page_aligned_bss; -static char hardirq_stack[NR_CPUS * THREAD_SIZE] - __attribute__((__section__(".bss.page_aligned"))); +static char hardirq_stack[NR_CPUS * THREAD_SIZE] __page_aligned_bss; /* * allocate per-cpu stacks for hardirq and for softirq processing |