[dpdk-dev] [PATCH] i40e: fix build issue for RX set function

[Zhe Tao <zhe.tao@intel.com>]

Issue:
When define CONFIG_RTE_LIBTRE_I40E_RX_ALLOW_BULK_ALLOC as n in config file,
there will be a build error:
慽40e_recv_pkts_bulk_alloc' undeclared 

Now DPDK i40e PMD use the Macro variable to choose whether to define the
related bulk recv functions, but for selection of the RX function,PMD only
depends on a C variable, which will cause the inconsistency and lead to the
build error which will tell us the bulk recv function is not defined.
 
Fixes: 8e109464 (i40e: allow vector Rx and Tx usage)

Signed-off-by: Zhe Tao <zhe.tao@intel.com>
---
 drivers/net/i40e/i40e_rxtx.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 8931b8e..1488f2f 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -1175,6 +1175,14 @@ i40e_recv_pkts_bulk_alloc(void *rx_queue,
 
 	return nb_rx;
 }
+#else
+static uint16_t
+i40e_recv_pkts_bulk_alloc(void __rte_unused *rx_queue,
+			  struct rte_mbuf __rte_unused **rx_pkts,
+			  uint16_t __rte_unused nb_pkts)
+{
+	return 0;
+}
 #endif /* RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC */
 
 uint16_t
-- 
2.1.4