![tsutsui](/assets/img/avatar_default.png)
- check status bits at once (I'm not sure how gcc optimized them though) - no need to check (ifp->if_flags & IFF_UP) twice (re_init() must be called at splnet() anyway) - call re_start() only if the interrupt is actually handled here - call re_start() directly rather than via (*ifp->if_start)()
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