Re: [patch 1/3] Input: psmouse - create PS/2 protocol options forKconfig

[Andres Salomon]

Dmitry Torokhov wrote:
> On 2/16/07, Andres Salomon <dilinger@xxxxxxxxxx> wrote:
>> Dmitry Torokhov wrote:
>> > On Thursday 15 February 2007 20:30, Andrew Morton wrote:
>> >> On Thu, 15 Feb 2007 19:55:29 -0500
>> >> Andres Salomon <dilinger@xxxxxxxxxx> wrote:
>> [...]
>> >> Perhaps a nicer implementation would be to have a separate .c file
>> for each
>> >> variant.
>> >>
>> >
>> > Having completely separate sub-drivers is very hard because of very
>> delicate
>> > PS/2 protocol probing....
>> >
>> > What do you think about patch below? It somewhat reduces #ifdef
>> clutter in main
>> > module moving it in .h files...
>> >
>>
>> Normally, I'm a fan of that sort of thing.  However, in this case, I
>> think it makes sense to have the #ifdefs right in the probe function; at
>> least for me, it makes it easier to understand what's going on.  The
>> synaptics stuff is especially tricky; with a cursory glance over the
>> code, one might assume that all the synaptics functions disappear when
>> CONFIG_MOUSE_PS2_SYNAPTICS is unset.  However, if the #ifdef's are in
>> the probe function, it's pretty clear that some synaptics functions
>> still get called even when CONFIG_MOUSE_PS2_SYNAPTICS is unset.
>>
> 
> Thit is a valid point but #ifdef maze in the middle of already messy
> psmouse-extensions() is too much for me. I guess I will just add a
> comment explaining that synaptics probing is really special.

Fair enough.  Anything you need me to do to move that along?  :)

> 
> Btw, can I get that OLPC patch when you have time?
> 

There are some hardware workarounds (sigh) that need cleaning up, then
I'll submit it.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/