[PATCH] app/dma-perf: fix dma mapping access overruns

[Mingjin Ye]

The dma map supports a maximum of `MAX_WORKER_NB=128`. Initializing
the dma map allows a maximum support of `MAX_WORKER_NB=256`. This results
in memory access out-of-bounds when the actual dma entries exceed
MAX_WORKER_NB.

This patch talks about MAX_WORKER_NB and MAX_WORKER_NB size set to 256 to
fix this.

Signed-off-by: Mingjin Ye <mingjinx.ye at intel.com>
---
 app/test-dma-perf/main.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/app/test-dma-perf/main.h b/app/test-dma-perf/main.h
index f65e264378..602ecac858 100644
--- a/app/test-dma-perf/main.h
+++ b/app/test-dma-perf/main.h
@@ -10,11 +10,12 @@
 #include <rte_cycles.h>
 #include <rte_dev.h>
 
-#define MAX_WORKER_NB 128
+#define MAX_WORKER_NB 256
 #define MAX_OUTPUT_STR_LEN 512
 
 #define MAX_DMA_NB 128
-#define MAX_LCORE_NB 256
+/* Note that MAX_LCORE_NB <= MAX_WORKER_NB */
+#define MAX_LCORE_NB MAX_WORKER_NB
 
 extern char output_str[MAX_WORKER_NB + 1][MAX_OUTPUT_STR_LEN];
 
-- 
2.25.1