On 07/03/2018 07:38 AM, Jason Wang wrote:
diff --git a/include/uapi/linux/virtio_ring.h b/include/uapi/linux/virtio_ring.h index 6d5d5fa..71c7a46 100644 --- a/include/uapi/linux/virtio_ring.h +++ b/include/uapi/linux/virtio_ring.h @@ -43,6 +43,8 @@ #define VRING_DESC_F_WRITE 2 /* This means the buffer contains a list of buffer descriptors. */ #define VRING_DESC_F_INDIRECT 4 +#define VRING_DESC_F_AVAIL 7 +#define VRING_DESC_F_USED 15
For consistency, you may want to make VRING_DESC_F_AVAIL and VRING_DESC_F_USED to represent the bit mask and not the bit position,
as done for VRING_DESC_F_WRITE and VRING_DESC_F_INDIRECT. Regards, Maxime