[dpdk-stable] [PATCH v2] examples/ipsec-secgw: fix potential build error

[Radu Nicolau]

When STATS_INTERVAL is set to a non-zero value the core_statistics array
will be defined in multiple compilation units and this can trigger a
linker error on particular environments. In order to fix this the
core_statistics definition was moved out of the header file.

Fixes: 1329602b6c8f ("examples/ipsec-secgw: add per-core packet statistics")
Cc: stable at dpdk.org

Signed-off-by: Radu Nicolau <radu.nicolau at intel.com>
---
 examples/ipsec-secgw/ipsec-secgw.c | 2 ++
 examples/ipsec-secgw/ipsec-secgw.h | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/examples/ipsec-secgw/ipsec-secgw.c b/examples/ipsec-secgw/ipsec-secgw.c
index 5fcf424efe..ea8e3bcb87 100644
--- a/examples/ipsec-secgw/ipsec-secgw.c
+++ b/examples/ipsec-secgw/ipsec-secgw.c
@@ -291,6 +291,8 @@ adjust_ipv6_pktlen(struct rte_mbuf *m, const struct rte_ipv6_hdr *iph,
 
 #if (STATS_INTERVAL > 0)
 
+struct ipsec_core_statistics core_statistics[RTE_MAX_LCORE];
+
 /* Print out statistics on packet distribution */
 static void
 print_stats_cb(__rte_unused void *param)
diff --git a/examples/ipsec-secgw/ipsec-secgw.h b/examples/ipsec-secgw/ipsec-secgw.h
index 96e22de45e..f9be303c28 100644
--- a/examples/ipsec-secgw/ipsec-secgw.h
+++ b/examples/ipsec-secgw/ipsec-secgw.h
@@ -93,7 +93,7 @@ struct ipsec_core_statistics {
 	uint64_t burst_rx;
 } __rte_cache_aligned;
 
-struct ipsec_core_statistics core_statistics[RTE_MAX_LCORE];
+extern struct ipsec_core_statistics core_statistics[RTE_MAX_LCORE];
 #endif /* STATS_INTERVAL */
 
 extern struct ethaddr_info ethaddr_tbl[RTE_MAX_ETHPORTS];
-- 
2.25.1