LPFC_DEFERRED_RING_EVENT
pring->flag & LPFC_DEFERRED_RING_EVENT ||
pring->flag |= LPFC_DEFERRED_RING_EVENT;
pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
pring->flag |= LPFC_DEFERRED_RING_EVENT;
pring->flag |= LPFC_DEFERRED_RING_EVENT;
pring->flag |= LPFC_DEFERRED_RING_EVENT;
pring->flag |= LPFC_DEFERRED_RING_EVENT;