examples/vhost: fix potentially overflowing expression

Message ID 20210202062830.4490-1-Cheng1.jiang@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Maxime Coquelin
Headers
Series examples/vhost: fix potentially overflowing expression |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS

Commit Message

Jiang, Cheng1 Feb. 2, 2021, 6:28 a.m. UTC
  Change the type of buff_idx from uint64_t to uint32_t to fix coverity
issue.

Fixes: a68ba8e0a6b6 ("examples/vhost: refactor vhost data path")
Coverity issue: 366264

Signed-off-by: Cheng Jiang <Cheng1.jiang@intel.com>
---
 examples/vhost/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
  

Patch

diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index 233a2dc6e..e74fc8750 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -864,7 +864,7 @@  static __rte_always_inline void
 drain_vhost(struct vhost_dev *vdev)
 {
 	uint16_t ret;
-	uint64_t buff_idx = rte_lcore_id() * MAX_VHOST_DEVICE + vdev->vid;
+	uint32_t buff_idx = rte_lcore_id() * MAX_VHOST_DEVICE + vdev->vid;
 	uint16_t nr_xmit = vhost_txbuff[buff_idx]->len;
 	struct rte_mbuf **m = vhost_txbuff[buff_idx]->m_table;