[PATCH] 2.4.20 unresolved symbols with K7/3DNOW

["dose" <dose@infernum.com>]

This one seems to have been around for quite a while (2.4.0-textX ?)...when
compiling with CONFIG_MK7=y ("Athlon/Duron/K7" as Processor family) a lot of
modules aren't able to resolve the symbol _mmx_memcpy. This is caused by
CONFIG_X86_USE_3DNOW=y and the problem lies in a wrong symbol export in
arch/i386/kernel/i386_ksyms.c - I wonder why this still hasn't been fixed as
it doesn't seem like a hard thing to do for someone who's into kernel
patching...being new to that, it took me about 3 hours.

Here's the patch (it's just one line so it should work for other 2.4.x
kernels as well)

diff -urN linux-2.4.20/arch/i386/kernel/i386_ksyms.c.orig
linux-2.4.20/arch/i386/kernel/i386_ksyms.c
--- linux-2.4.20/arch/i386/kernel/i386_ksyms.c.orig     Sun Mar 23 04:24:06
2003
+++ linux-2.4.20/arch/i386/kernel/i386_ksyms.c  Sun Mar 23 04:24:18 2003
@@ -120,7 +120,7 @@
 #endif

 #ifdef CONFIG_X86_USE_3DNOW
-EXPORT_SYMBOL(_mmx_memcpy);
+EXPORT_SYMBOL_NOVERS(_mmx_memcpy);
 EXPORT_SYMBOL(mmx_clear_page);
 EXPORT_SYMBOL(mmx_copy_page);
 #endif


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