#define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__)
#define claim_zero(...) assert((__VA_ARGS__) == 0)
+#define claim_nonzero(...) assert((__VA_ARGS__) != 0)
#else /* NDEBUG */
#define DEBUG(...) (void)0
#define claim_zero(...) (__VA_ARGS__)
+#define claim_nonzero(...) (__VA_ARGS__)
#endif /* NDEBUG */