SME_FLAG_BUSY
while (sme->sme_flags & SME_FLAG_BUSY)
sme->sme_flags |= SME_FLAG_BUSY;
while (sme->sme_flags & SME_FLAG_BUSY)
sme->sme_flags |= SME_FLAG_BUSY;
sme->sme_flags &= ~SME_FLAG_BUSY;
sme->sme_flags &= ~SME_FLAG_BUSY;