[Make-wifi-fast] [PATCH v4] mac80211: Move reorder-sensitive TX handlers to after TXQ dequeue.

Toke Høiland-Jørgensen toke at toke.dk
Thu Sep 1 05:42:31 EDT 2016

Johannes Berg <johannes at sipsolutions.net> writes:

>> Yeah, was going to do that anyway. But since I'm touching the code
>> anyway, this might be an opportunity to avoid constructs like this:
>> if (!invoke_tx_handlers(tx))
>>   /* continue sending the packet */
>> Most other succeed/fail functions seem to be of type bool, so it
>> would help consistency as well. Unless there is some particular
>> reason why this function happens to be using 0 to indicate success?
> It's just convention in the kernel, really.
> IMHO if a function has a bool return value it should be have a more
> expressive name that indicates better what's going on, like e.g.
> bool ieee80211_is_radar_required(...);
> but of course that's not always done.

Well, it's applied somewhat inconsistently across mac80211, it seems
(e.g. ieee80211_tx() and ieee80211_tx_prepare_skb() are bool, while
invoke_tx_handlers() and ieee80211_skb_resize() are int). But okay,
don't have that strong an opinion about the colour of this particular
bikeshed so I'll keep it the way it is ;)


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