[PATCH v2] test/crypto: fix warnings for optimization=1 build

[Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>]

Fail IPSec ESN and antireplay cases, if there are no packets. Fixes
following warning when using optimization=1 build flag with GCC 11.

../app/test/test_cryptodev.c: In function ‘test_ipsec_pkt_replay’:
../app/test/test_cryptodev.c:10074:15: warning: ‘td_outb’ may be used uninitialized [-Wmaybe-uninitialized]
         ret = test_ipsec_proto_process(td_outb, td_inb, nb_pkts, true,
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                        &flags);
                                        ~~~~~~~
../app/test/test_cryptodev.c:9150:1: note: by argument 1 of type ‘const struct ipsec_test_data[]’ to ‘test_ipsec_proto_process’ declared here
 test_ipsec_proto_process(const struct ipsec_test_data td[],
 ^~~~~~~~~~~~~~~~~~~~~~~~
../app/test/test_cryptodev.c:10056:32: note: ‘td_outb’ declared here
         struct ipsec_test_data td_outb[IPSEC_TEST_PACKETS_MAX];
                                ^~~~~~~

Bugzilla ID: 1032
Fixes: d02c6bfcb99a ("test/crypto: add ESN and antireplay cases")
Cc: stable@dpdk.org

Reported-by: Daxue Gao <daxuex.gao@intel.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
---
v2:
- Return TEST_FAILED, instead of TEST_SKIPPED
- Add the new Bugzilla ID in commit message

 app/test/test_cryptodev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c
index 524019ce0e..2766e0cc10 100644
--- a/app/test/test_cryptodev.c
+++ b/app/test/test_cryptodev.c
@@ -10058,6 +10058,9 @@ test_ipsec_pkt_replay(const void *test_data, const uint64_t esn[],
 	struct ipsec_test_flags flags;
 	uint32_t i = 0, ret = 0;
 
+	if (nb_pkts == 0)
+		return TEST_FAILED;
+
 	memset(&flags, 0, sizeof(flags));
 	flags.antireplay = true;
 
-- 
2.27.0