From: Cheng Jiang Date: Wed, 12 May 2021 02:30:56 +0000 (+0000) Subject: vhost: fix sign extension in async packed ring X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=35139e648ad103a21589bf28ac9d5909fb483b46;p=dpdk.git vhost: fix sign extension in async packed ring Change the variable type in store_dma_desc_info_packed() to fix suspicious implicit sign extension. Coverity issue: 370608, 370610, 370612 Fixes: 873e8dad6f49 ("vhost: support packed ring in async datapath") Signed-off-by: Cheng Jiang --- diff --git a/lib/vhost/virtio_net.c b/lib/vhost/virtio_net.c index 9137a9923b..abfd67d38c 100644 --- a/lib/vhost/virtio_net.c +++ b/lib/vhost/virtio_net.c @@ -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);