The MMCR0_PMXE is already defined in reg.h, so no need to redefine it here. Signed-off-by: Thomas Gleixner --- perfmon.c | 1 - 1 files changed, 1 deletion(-) --- Index: 2.6.10-mm2/arch/ppc/kernel/perfmon.c =================================================================== --- 2.6.10-mm2/arch/ppc/kernel/perfmon.c (revision 141) +++ 2.6.10-mm2/arch/ppc/kernel/perfmon.c (working copy) @@ -47,7 +47,6 @@ #else /* Ensure exceptions are disabled */ -#define MMCR0_PMXE (1UL << (31 - 5)) static void dummy_perf(struct pt_regs *regs) {