Re: [PATCH] net: mac80211: tx.c: be sure of 'sdata->vif.type' must be NL80211_IFTYPE_AP when be in NL80211_IFTYPE_AP case

Chen Gang
2013-12-02T00:45:54Z

On 12/02/2013 06:38 AM, Joe Perches wrote:
> On Sun, 2013-12-01 at 10:35 +0100, Johannes Berg wrote:
>> Good try, but no, now ap_sdata isn't even assigned. :)
>
> Right. Oh well. There's no improving this without
> significant rewrite. Even then, there may not be much
> overall improvement.
>
> btw: Chen, I think fall-throughs are fine as long as
> they are commented appropriately.
>

Hmm... for me, when use fall-through, need 2 things:

- need a comment.

- next case need not notice about prev case which fall-through.

If we can not fit the 2 things above, either can not use sub functions
or macros for it because of performance reason, 'goto' is better than
'fall-through'.

For me, in most cases, when a function becomes a long function, it is
always better to use sub-fuctions or macros instead of some blocks (but
it is really not urgent :-) ).

Thanks.
--
Chen Gang