On 20/07/16 17:28, Catalin Marinas wrote:
> On Wed, Jul 20, 2016 at 05:09:28PM +0100, Marc Zyngier wrote:
>> +static inline unsigned long min_stack_size(unsigned long addr)
>> +{
>> + unsigned long size;
>> + struct kprobe_ctlblk *ctl;
>> +
>> + if (on_irq_stack(addr, raw_smp_processor_id()))
>> + size = IRQ_STACK_PTR(raw_smp_processor_id()) - addr;
>> + else
>> + size = (unsigned long)current_thread_info() + THREAD_START_SP -
>> addr;
>> +
>> + return min(size, sizeof(ctl->jprobes_stack));
>> +}
>
> We could drop the local ctl pointer:
>
> return min(size, sizeof(((struct kprobe_ctlblk *)0)->jprobes_stack));
>
> If you add a log, I'll push the patch on top of the kprobes branch.
Sure, I'll write that now.
Thanks,
M.
--
Jazz is not dead. It just smells funny...
