User can pass portmask with any value, even invalid mask. The code
checks against actual portmask.
Signed-off-by: Vipin Varghese <vipin.vargh...@intel.com>
---
V2 Changes:
- correct the spelling in comment - Vipin
---
examples/l2fwd/main.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c
index 6c07ed4..e4a4a7c 100644
--- a/examples/l2fwd/main.c
+++ b/examples/l2fwd/main.c
@@ -549,6 +549,11 @@ enum {
if (nb_ports == 0)
rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
+ /* check port mask to possible port mask */
+ if (l2fwd_enabled_port_mask & ~((1 << nb_ports) - 1))
+ rte_exit(EXIT_FAILURE, "Invalid portmask; possible (0x%x)\n",
+ (1 << nb_ports) - 1);
+
/* reset l2fwd_dst_ports */
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
l2fwd_dst_ports[portid] = 0;
--
1.9.1
