On Mon, 20 Aug 2007 22:03:28 -0700 Andrew Morton <[EMAIL PROTECTED]> wrote:
> register_hotcpu_notifier() is cunning. If CONFIG_HOTPLUG_CPU=y, we need > the notifier block and the function to which it points to be in .data and > in .text. If CONFIG_HOTPLUG_CPU=n, we don't need them to be present at all. > > So what we can do is to just leave the notifier block in .data and the > function in .text and then the compiler/linker will notice that nothing > references them and they will be omitted at build time. As long as the notifier block and the function are static. I don't think the toolchain is smart enough to remove them if they have global scope, but I didn't check this.. - 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/
