[PATCH] ppc32: fix compilation

PPC has an out of line and exported abs() that gives lots of nice and
wierd compilation erorrs.  Also kill the duplicate cpu_online() in
asm-ppc/smp.h.

arch/ppc/kernel/ppc_ksyms.c

@@ -68,7 +68,6 @@ extern int sys_sigreturn(struct pt_regs *regs);
 long long __ashrdi3(long long, int);
 long long __ashldi3(long long, int);
 long long __lshrdi3(long long, int);
-int abs(int);
 
 extern unsigned long mm_ptov (unsigned long paddr);
 
@@ -276,8 +275,6 @@ EXPORT_SYMBOL(memscan);
 EXPORT_SYMBOL(memcmp);
 EXPORT_SYMBOL(memchr);
 
-EXPORT_SYMBOL(abs);
-
 #if defined(CONFIG_FB_VGA16_MODULE)
 EXPORT_SYMBOL(screen_info);
 #endif

include/asm-ppc/smp.h

@@ -47,8 +47,6 @@ extern void smp_local_timer_interrupt(struct pt_regs *);
 
 #define smp_processor_id() (current_thread_info()->cpu)
 
-#define cpu_online(cpu) cpu_isset(cpu, cpu_online_map)
-
 extern int __cpu_up(unsigned int cpu);
 
 extern int smp_hw_index[];

include/asm-ppc/system.h

@@ -82,7 +82,6 @@ extern int fix_alignment(struct pt_regs *);
 extern void cvt_fd(float *from, double *to, unsigned long *fpscr);
 extern void cvt_df(double *from, float *to, unsigned long *fpscr);
 extern int call_rtas(const char *, int, int, unsigned long *, ...);
-extern int abs(int);
 extern void cacheable_memzero(void *p, unsigned int nb);
 extern int do_page_fault(struct pt_regs *, unsigned long, unsigned long);
 extern void bad_page_fault(struct pt_regs *, unsigned long, int);