in_task_stack
bool in_task_stack(unsigned long stack, struct task_struct *task, struct stack_info *info);
if (in_task_stack(stack, task, info))
if (in_task_stack(sp, task, info))
bool in_task_stack(unsigned long *stack, struct task_struct *task,
if (in_task_stack(stack, task, info))
if (in_task_stack(stack, task, info))