Stefan noticed that we must use memmove, not memcpy,
as arguments overlap.
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/virtio/virtio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index ed1f274..939f802 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -481,8 +481,8 @@ static void virtqueue_map_iovec(struct iovec *sg, hwaddr
*addr,
error_report("virtio: memory split makes iovec too large");
exit(1);
}
- memcpy(sg + i + 1, sg + i, sizeof(*sg) * (*num_sg - i));
- memcpy(addr + i + 1, addr + i, sizeof(*addr) * (*num_sg - i));
+ memmove(sg + i + 1, sg + i, sizeof(*sg) * (*num_sg - i));
+ memmove(addr + i + 1, addr + i, sizeof(*addr) * (*num_sg - i));
assert(len < sg[i + 1].iov_len);
sg[i].iov_len = len;
addr[i + 1] += len;
--
MST
