[PATCH v6 20/30] examples/ipsec_secgw: replace packed attributes

[Andre Muezerie]

MSVC struct packing is not compatible with GCC. Replace macro
__rte_packed with __rte_packed_begin to push existing pack value
and set packing to 1-byte and macro __rte_packed_end to restore
the pack value prior to the push.

Macro __rte_packed_end is deliberately utilized to trigger a
MSVC compiler warning if no existing packing has been pushed allowing
easy identification of locations where the __rte_packed_begin is
missing.

Signed-off-by: Andre Muezerie <andremue at linux.microsoft.com>
---
 examples/ipsec-secgw/ipsec.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/ipsec-secgw/ipsec.h b/examples/ipsec-secgw/ipsec.h
index f12f57e2d5..afa0f28cc5 100644
--- a/examples/ipsec-secgw/ipsec.h
+++ b/examples/ipsec-secgw/ipsec.h
@@ -274,11 +274,12 @@ struct socket_ctx {
 	struct rte_mempool *session_pool;
 };
 
+__rte_packed_begin
 struct cnt_blk {
 	uint32_t salt;
 	uint64_t iv;
 	uint32_t cnt;
-} __rte_packed;
+} __rte_packed_end;
 
 struct __rte_cache_aligned lcore_rx_queue {
 	uint16_t port_id;
-- 
2.34.1