[PATCH v2 3/3] app/crypto-perf: fix packet length check

[Pablo de Lara <pablo.de.lara.guarch@intel.com>]

When using DES-CBC, packet size has to be multiple
of 8 bytes, but if a list of packets is provided.
the check was not correct.

Fixes: fc4600fb2520 ("app/crypto-perf: add extra option checks")
Cc: stable@dpdk.org

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---
 app/test-crypto-perf/cperf_options_parsing.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/app/test-crypto-perf/cperf_options_parsing.c b/app/test-crypto-perf/cperf_options_parsing.c
index 663f53f..3f933bc 100644
--- a/app/test-crypto-perf/cperf_options_parsing.c
+++ b/app/test-crypto-perf/cperf_options_parsing.c
@@ -832,14 +832,26 @@ check_cipher_buffer_length(struct cperf_options *options)
 	if (options->cipher_algo == RTE_CRYPTO_CIPHER_DES_CBC ||
 			options->cipher_algo == RTE_CRYPTO_CIPHER_3DES_CBC ||
 			options->cipher_algo == RTE_CRYPTO_CIPHER_3DES_ECB) {
-		for (buffer_size = options->min_buffer_size;
-				buffer_size < options->max_buffer_size;
-				buffer_size += options->inc_buffer_size) {
+		if (options->inc_buffer_size != 0)
+			buffer_size = options->min_buffer_size;
+		else
+			buffer_size = options->buffer_size_list[0];
+
+		while (buffer_size <= options->max_buffer_size) {
 			if ((buffer_size % DES_BLOCK_SIZE) != 0) {
 				RTE_LOG(ERR, USER1, "Some of the buffer sizes are "
 					"not suitable for the algorithm selected\n");
 				return -EINVAL;
 			}
+
+			if (options->inc_buffer_size != 0)
+				buffer_size += options->inc_buffer_size;
+			else {
+				if (++buffer_size_idx == options->buffer_size_count)
+					break;
+				buffer_size = options->buffer_size_list[buffer_size_idx];
+			}
+
 		}
 	}
 
-- 
2.9.4