On 01/18/2008 04:16 AM, Taral wrote: > On 1/17/08, Michael Opdenacker <[EMAIL PROTECTED]> wrote: > >> Another issue would be that we would no longer be able >> to load the speaker driver module from a kernel which >> wasn't originally compiled with support for this module. >> > > Have you looked at pcspeaker.o? As far as I can tell, it does *nothing*. > Do you mean "almost nothing"? It still allocates and adds a platform device, and the corresponding function always gets called at boot time.
I know that not compiling this piece of code just reduces the uncompressed kernel size by just a few bytes (218). However, many small contributions of this kind can have a significant impact on embedded systems (or on boot media or on Linux based bootloaders). As I said earlier, I'm starting to think that this trick should only be used when CONFIG_EMBEDDED is set. In the non-embedded case, it's probably not acceptable not to declare a platform device that is always present in the system (while it's perfectly fine not to load the corresponding driver). Your comments and suggestions are more than welcome! Michael. -- Michael Opdenacker, Free Electrons Free Embedded Linux Training Materials on http://free-electrons.com/training (More than 1500 pages!) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
