kobject.c changes in -mm

[Christoph Hellwig <hch@infradead.org>]

--- linux-2.6.20-rc3/lib/kobject.c      2007-01-01 23:04:49.000000000 -0800
+++ devel/lib/kobject.c 2007-01-04 21:13:21.000000000 -0800
@@ -15,6 +15,8 @@
 #include <linux/module.h>
 #include <linux/stat.h>
 #include <linux/slab.h>
+#include <linux/kallsyms.h>
+#include <asm-generic/sections.h>

+#ifdef CONFIG_X86_32
+static int ptr_in_range(void *ptr, void *start, void *end)
+{
+       /*
+        * This should hopefully get rid of causing warnings
+        * if the architecture did not set one of the section
+        * variables up.
+        */ 
+       if (start >= end)
+               return 0;
+
+       if ((ptr >= start) && (ptr < end))
+               return 1;
+       return 0;
+}      


Can anyone explain WTF is going on here?  Including asm-generic headers
in core code definitly is not okay.  As are random CONFIG_X86_32 ifdefs
in said code.