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um, hweight: Fix UML boot crash due to x86 optimized hweight 

Apparently UML cannot stomach callee reg-saving trickery
introduced with d61931d89b
(x86: Add optimized popcnt variants) and oopses during boot:
http://marc.info/?l=linux-kernel&m=127522065202435&w=2

Redirect arch_hweight.h include from the x86 portion to the generic
arch_hweight.h which is a fallback to the software hweight routines.

LKML-Reference: <201005271944.09541.toralf.foerster@gmx.de>
Signed-off-by: Borislav Petkov <bp@alien8.de>
LKML-Reference: <4C0F4B00.4090307@panasas.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Borislav Petkov 2010-06-09 11:04:16 +03:00 committed by H. Peter Anvin
parent cf3bdc29fc
commit 055c47272b
1 changed files with 6 additions and 0 deletions
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6
arch/um/include/asm/arch_hweight.h Normal file
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#ifndef _ASM_UM_HWEIGHT_H
#define _ASM_UM_HWEIGHT_H
#include <asm-generic/bitops/arch_hweight.h>
#endif