Re: [Linux-fbdev-devel] [PATCH 2/8] param: use ops in struct kernel_param, rather than get and set fns directly

[Takashi I. <ti...@su...>]

At Fri, 23 Oct 2009 00:51:28 +1030,
Rusty Russell wrote:
> 
> This is more kernel-ish, saves some space, and also allows us to
> expand the ops without breaking all the callers who are happy for the
> new members to be NULL.
> 
> The few places which defined their own param types are changed to the
> new scheme.
> 
> Since we're touching them anyway, we change get and set to take a
> const struct kernel_param (which they were, and will be again).
> 
> To reduce churn, module_param_call creates the ops struct so the callers
> don't have to change (and casts the functions to reduce warnings).
> The modern version which takes an ops struct is called module_param_cb.

This is nice, as it also reduces the size of struct kernel_param, so
each parameter uses less footprint (who cares, though?) :)

But, just wondering whether we still need to export get/set
functions.  They can be called from ops now, so if any, it can be
defined even as an inlinefunction or a macro.


thanks,

Takashi