28 static unsigned int user_getsp32(unsigned int sp, int is_first)  in user_getsp32()  argument
31 	void __user *p = compat_ptr(sp);  in user_getsp32()
55 static unsigned long user_getsp64(unsigned long sp, int is_first)  in user_getsp64()  argument
59 	if (!access_ok(VERIFY_READ, (void __user *)sp, sizeof(stack_frame)))  in user_getsp64()
62 	if (__copy_from_user_inatomic(stack_frame, (void __user *)sp,  in user_getsp64()
73 static unsigned long kernel_getsp(unsigned long sp, int is_first)  in kernel_getsp()  argument
75 	unsigned long *stack_frame = (unsigned long *)sp;  in kernel_getsp()
77 	if (!validate_sp(sp, current, STACK_FRAME_OVERHEAD))  in kernel_getsp()
94 	unsigned long sp = regs->gpr[1];  in op_powerpc_backtrace()  local
102 			sp = kernel_getsp(sp, first_frame);  in op_powerpc_backtrace()
103 			if (!sp)  in op_powerpc_backtrace()
112 				sp = user_getsp64(sp, first_frame);  in op_powerpc_backtrace()
113 				if (!sp)  in op_powerpc_backtrace()
123 			sp = user_getsp32(sp, first_frame);  in op_powerpc_backtrace()
124 			if (!sp)  in op_powerpc_backtrace()