]> git.openfabrics.org - ~shefty/rdma-dev.git/commitdiff
um, hweight: Fix UML boot crash due to x86 optimized hweight
authorBorislav Petkov <bp@alien8.de>
Wed, 9 Jun 2010 08:04:16 +0000 (11:04 +0300)
committerH. Peter Anvin <hpa@linux.intel.com>
Thu, 10 Jun 2010 22:24:30 +0000 (15:24 -0700)
Apparently UML cannot stomach callee reg-saving trickery
introduced with d61931d89be506372d01a90d1755f6d0a9fafe2d
(x86: Add optimized popcnt variants) and oopses during boot:

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>
arch/um/include/asm/arch_hweight.h [new file with mode: 0644]

diff --git a/arch/um/include/asm/arch_hweight.h b/arch/um/include/asm/arch_hweight.h
new file mode 100644 (file)
index 0000000..c656cf4
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef _ASM_UM_HWEIGHT_H
+#define _ASM_UM_HWEIGHT_H
+#include <asm-generic/bitops/arch_hweight.h>