diff options
Diffstat (limited to 'arch/powerpc/kernel/irq.c')
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 2234a1276a77..57d286a78f86 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -496,7 +496,6 @@ void do_IRQ(struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); struct thread_info *curtp, *irqtp; - unsigned long saved_sp_limit; /* Switch to the irq stack to handle this */ curtp = current_thread_info(); @@ -509,12 +508,6 @@ void do_IRQ(struct pt_regs *regs) return; } - /* Adjust the stack limit */ - saved_sp_limit = current->thread.ksp_limit; - current->thread.ksp_limit = (unsigned long)irqtp + - _ALIGN_UP(sizeof(struct thread_info), 16); - - /* Prepare the thread_info in the irq stack */ irqtp->task = curtp->task; irqtp->flags = 0; @@ -526,7 +519,6 @@ void do_IRQ(struct pt_regs *regs) call_do_irq(regs, irqtp); /* Restore stack limit */ - current->thread.ksp_limit = saved_sp_limit; irqtp->task = NULL; /* Copy back updates to the thread_info */ @@ -604,16 +596,12 @@ void irq_ctx_init(void) static inline void do_softirq_onstack(void) { struct thread_info *curtp, *irqtp; - unsigned long saved_sp_limit = current->thread.ksp_limit; curtp = current_thread_info(); irqtp = softirq_ctx[smp_processor_id()]; irqtp->task = curtp->task; irqtp->flags = 0; - current->thread.ksp_limit = (unsigned long)irqtp + - _ALIGN_UP(sizeof(struct thread_info), 16); call_do_softirq(irqtp); - current->thread.ksp_limit = saved_sp_limit; irqtp->task = NULL; /* Set any flag that may have been set on the |