Comment # 24 on bug 1036463 from Takashi Iwai

(In reply to Oliver Neukum from comment #23)
> (In reply to Takashi Iwai from comment #22)
> > Also, my slight concern is that built-in solution will make the system
> > unusable with the older kernels or with different kernel configs.
> 
> Nothing forces you to build the initrd without the scsi core if the module
> is present.

Yes, but we usually preserve the availability without much manual
configuration.  

In anyway, the kernel config change in that level needs the general consensus. 
Raise it on kernel ML if this is really the best way to go over other options.