[dpdk-stable] patch 'app/crypto-perf: fix burst size calculation' has been queued to stable release 18.02.2

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 18.02.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/16/18. So please
shout if anyone has objections.

Thanks.

Luca Boccassi

---
>From 9237f557c95321752a8e0b57c01742f831064d94 Mon Sep 17 00:00:00 2001
From: Tomasz Jozwiak <tomaszx.jozwiak at intel.com>
Date: Thu, 26 Apr 2018 11:05:49 +0200
Subject: [PATCH] app/crypto-perf: fix burst size calculation

[ upstream commit 3356083a775c816cb1efa41019fa6ddbbec023c8 ]

This patch fixes segmentation fault in pmd_cyclecount_bench_ops
function in case when state->opts->nb_descriptors is not
natural multiple of burst size.
To reproduce run: dpdk-test-crypto-perf with params:
  --ptest pmd-cyclecount --pmd-cyclecount-delay-ms 5 \
  --devtype crypto_qat --optype cipher-then-auth \
  --cipher-algo aes-cbc --cipher-op encrypt \
  --cipher-key-sz 16 --cipher-iv-sz 16 \
  --auth-algo sha2-256-hmac \
  --auth-op generate --auth-key-sz 64 --digest-sz 32 \
  --total-ops 10000 --burst-sz 255 --buffer-sz 1024 --silent

Fixes: 96dfeb609be1 ("app/crypto-perf: add new PMD benchmarking mode")

Signed-off-by: Tomasz Jozwiak <tomaszx.jozwiak at intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
---
 app/test-crypto-perf/cperf_test_pmd_cyclecount.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/test-crypto-perf/cperf_test_pmd_cyclecount.c b/app/test-crypto-perf/cperf_test_pmd_cyclecount.c
index 8f7616081..c8d16db6d 100644
--- a/app/test-crypto-perf/cperf_test_pmd_cyclecount.c
+++ b/app/test-crypto-perf/cperf_test_pmd_cyclecount.c
@@ -145,7 +145,7 @@ pmd_cyclecount_bench_ops(struct pmd_cyclecount_state *state, uint32_t cur_op,
 
 	for (cur_iter_op = 0; cur_iter_op < iter_ops_needed;
 			cur_iter_op += test_burst_size) {
-		uint32_t burst_size = RTE_MIN(state->opts->total_ops - cur_op,
+		uint32_t burst_size = RTE_MIN(iter_ops_needed - cur_iter_op,
 				test_burst_size);
 		struct rte_crypto_op **ops = &state->ctx->ops[cur_iter_op];
 
-- 
2.14.2