6813 static bool regsafe(struct bpf_reg_state *rold, struct bpf_reg_state *rcur,  in regsafe()  argument
6822 	equal = memcmp(rold, rcur, offsetof(struct bpf_reg_state, parent)) == 0;  in regsafe()
6828 		return equal && rold->frameno == rcur->frameno;  in regsafe()
6836 	if (rcur->type == NOT_INIT)  in regsafe()
6840 		if (rcur->type == SCALAR_VALUE) {  in regsafe()
6841 			if (!rold->precise && !rcur->precise)  in regsafe()
6844 			return range_within(rold, rcur) &&  in regsafe()
6845 			       tnum_in(rold->var_off, rcur->var_off);  in regsafe()
6865 		return memcmp(rold, rcur, offsetof(struct bpf_reg_state, id)) == 0 &&  in regsafe()
6866 		       range_within(rold, rcur) &&  in regsafe()
6867 		       tnum_in(rold->var_off, rcur->var_off);  in regsafe()
6876 		if (rcur->type != PTR_TO_MAP_VALUE_OR_NULL)  in regsafe()
6878 		if (memcmp(rold, rcur, offsetof(struct bpf_reg_state, id)))  in regsafe()
6881 		return check_ids(rold->id, rcur->id, idmap);  in regsafe()
6884 		if (rcur->type != rold->type)  in regsafe()
6892 		if (rold->range > rcur->range)  in regsafe()
6897 		if (rold->off != rcur->off)  in regsafe()
6900 		if (rold->id && !check_ids(rold->id, rcur->id, idmap))  in regsafe()
6903 		return range_within(rold, rcur) &&  in regsafe()
6904 		       tnum_in(rold->var_off, rcur->var_off);  in regsafe()