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vhost: fix sign extension in async packed ring

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Change the variable type in store_dma_desc_info_packed() to fix
suspicious implicit sign extension.

Coverity issue: 370608, 370610, 370612
Fixes: 873e8dad6f ("vhost: support packed ring in async datapath")

Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
This commit is contained in:
Cheng Jiang 2021-05-12 02:30:56 +00:00 committed by Chenbo Xia
parent 11a7cd8c92
commit 35139e648a
1 changed files with 1 additions and 1 deletions
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lib/vhost/virtio_net.c
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@ -1491,7 +1491,7 @@ store_dma_desc_info_packed(struct vring_used_elem_packed *s_ring,
struct vring_used_elem_packed *d_ring,
uint16_t ring_size, uint16_t s_idx, uint16_t d_idx, uint16_t count)
{
uint16_t elem_size = sizeof(struct vring_used_elem_packed);
size_t elem_size = sizeof(struct vring_used_elem_packed);
if (d_idx + count <= ring_size) {
rte_memcpy(d_ring + d_idx, s_ring + s_idx, count * elem_size);