APP_METADATA_OFFSET(0)); \
key = RTE_MBUF_METADATA_UINT8_PTR(mbuf, \
APP_METADATA_OFFSET(32)); \
- memset(key, 0, 32); \
+ if (mbuf->priv_size + mbuf->buf_len >= 64) \
+ memset(key, 0, 32); \
k32 = (uint32_t *) key; \
k32[0] = (value); \
*signature = pipeline_test_hash(key, NULL, 0, 0); \