when run "make virtio" in linux/tools, the error: "'prev' and 'head_flags' may be used uninitialized in this function" occurs
Signed-off-by: Cai Huoqing <[email protected]> --- drivers/virtio/virtio_ring.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 89bfe46a8a7f..290bdf8a3d36 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -486,7 +486,7 @@ static inline int virtqueue_add_split(struct virtqueue *_vq, struct vring_virtqueue *vq = to_vvq(_vq); struct scatterlist *sg; struct vring_desc *desc; - unsigned int i, n, avail, descs_used, prev, err_idx; + unsigned int i, n, avail, descs_used, prev = 0, err_idx; int head; bool indirect; @@ -1173,8 +1173,8 @@ static inline int virtqueue_add_packed(struct virtqueue *_vq, struct vring_packed_desc *desc; struct scatterlist *sg; unsigned int i, n, c, descs_used, err_idx; - __le16 head_flags, flags; - u16 head, id, prev, curr, avail_used_flags; + __le16 head_flags = 0, flags; + u16 head, id, prev = 0, curr, avail_used_flags; START_USE(vq); -- 2.25.1 _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
