8602 static bool regsafe(struct bpf_reg_state *rold, struct bpf_reg_state *rcur,  in regsafe()  argument
8611 	equal = memcmp(rold, rcur, offsetof(struct bpf_reg_state, parent)) == 0;  in regsafe()
8617 		return equal && rold->frameno == rcur->frameno;  in regsafe()
8625 	if (rcur->type == NOT_INIT)  in regsafe()
8629 		if (rcur->type == SCALAR_VALUE) {  in regsafe()
8630 			if (!rold->precise && !rcur->precise)  in regsafe()
8633 			return range_within(rold, rcur) &&  in regsafe()
8634 			       tnum_in(rold->var_off, rcur->var_off);  in regsafe()
8654 		return memcmp(rold, rcur, offsetof(struct bpf_reg_state, id)) == 0 &&  in regsafe()
8655 		       range_within(rold, rcur) &&  in regsafe()
8656 		       tnum_in(rold->var_off, rcur->var_off);  in regsafe()
8665 		if (rcur->type != PTR_TO_MAP_VALUE_OR_NULL)  in regsafe()
8667 		if (memcmp(rold, rcur, offsetof(struct bpf_reg_state, id)))  in regsafe()
8670 		return check_ids(rold->id, rcur->id, idmap);  in regsafe()
8673 		if (rcur->type != rold->type)  in regsafe()
8681 		if (rold->range > rcur->range)  in regsafe()
8686 		if (rold->off != rcur->off)  in regsafe()
8689 		if (rold->id && !check_ids(rold->id, rcur->id, idmap))  in regsafe()
8692 		return range_within(rold, rcur) &&  in regsafe()
8693 		       tnum_in(rold->var_off, rcur->var_off);  in regsafe()