struct boot_option *boot_option_copy(void* ctx, const struct boot_option *opt);
int pb_protocol_device_len(const struct device *dev);
+int pb_protocol_device_cmp(const struct device *a, const struct device *b);
+
+int pb_protocol_boot_option_cmp(const struct boot_option *a,
+ const struct boot_option *b);
int pb_protocol_serialise_string(char *pos, const char *str);
char *pb_protocol_deserialise_string(void *ctx,