message: use constant to initialize the default behaviour of the ring
diff: @@ -54,9 +54,11 @@ pub mod consts {
  pub const VIRTQ_DESC_F_WRITE: u16 = 2; // Buffer is device write-only (instead of read-only)
  pub const VIRTQ_DESC_F_INDIRECT: u16 = 4; // Buffer contains list of virtq_desc
  - // The Guest uses this in flag to advise the Host: don't interrupt me
  + // The guest uses this in flag to advise the host: don't interrupt me
  // when you consume a buffer.
  pub const VRING_AVAIL_F_NO_INTERRUPT: u16 = 1;
  + /// Default behaviour, where the guest expects interrupts from the host
  + pub const VRING_AVAIL_F_DEFAULT: u16 = 0;
  }
  pub struct Virtq<'a> {
  @@ -401,7 +403,7 @@ impl<'a> Virtq<'a> {
  if value {
  *vqavail.flags = VRING_AVAIL_F_NO_INTERRUPT;
  } else {
  - *vqavail.flags = 0;
  + *vqavail.flags = VRING_AVAIL_F_DEFAULT;
  }
  }
  