Re: [PATCH] platform/x86: dell-laptop: Allocate buffer on heap rather than globally

["Pali Rohár" <pali.rohar@gmail.com>]

On Tuesday 30 January 2018 20:14:26 Andy Shevchenko wrote:
> >> -static void dell_set_arguments(u32 arg0, u32 arg1, u32 arg2, u32 arg3)
> >> +static void dell_set_arguments(struct calling_interface_buffer *buffer,
> >> +                            u32 arg0, u32 arg1, u32 arg2, u32 arg3)
> >
> > Hm... this function has too many parameters :-(
> >
> > What about following API?
> >
> > static struct calling_interface_buffer dell_set_arguments(u32 arg0, u32 arg1, u32 arg2, u32 arg3);
> >
> > It would return filled structure (not a pointer !)
> 
> I do not think it's a good idea. Either we allocate request on a heap
> and return a pointer, or we fill the struct with some data on spot.
> 
> To naming:
> 
> for allocation: ..._alloc_request()
> for filling: _fill_request() / _prepare_request()
> 
> or alike.
> 
> _set_arguments() not good enough to me.

Ok. Then we need to stick with 5 arguments... What about name
dell_fill_request()? E.g.

  struct calling_interface_buffer buffer;
  dell_fill_request(&buffer, 0x2, 0, 0, 0);
  ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL);

-- 
Pali Rohár
pali.rohar@gmail.com