Re: [PATCH 13/13] powerpc: rewrite local_t using soft_irq

Hi Madhavan,

[auto build test ERROR on v4.8-rc6]
[cannot apply to powerpc/next kvm-ppc/kvm-ppc-next mpe/next next-20160915]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Madhavan-Srinivasan/powerpc-paca-soft_enabled-based-local-atomic-operation-implementation/20160915-215652
config: powerpc-allnoconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from include/linux/perf_event.h:57:0,
                    from include/linux/trace_events.h:9,
                    from include/trace/syscall.h:6,
                    from include/linux/syscalls.h:81,
                    from init/main.c:18:
   arch/powerpc/include/asm/local.h: In function 'local_add':

quoted

arch/powerpc/include/asm/local.h:25:2: error: implicit declaration of function 'local_irq_pmu_save' [-Werror=implicit-function-declaration]

     local_irq_pmu_save(flags);
     ^

quoted

arch/powerpc/include/asm/local.h:32:2: error: implicit declaration of function 'local_irq_pmu_restore' [-Werror=implicit-function-declaration]

     local_irq_pmu_restore(flags);
     ^
   cc1: some warnings being treated as errors

vim +/local_irq_pmu_save +25 arch/powerpc/include/asm/local.h

    19	
    20	static __inline__ void local_add(long i, local_t *l)
    21	{
    22		long t;
    23		unsigned long flags;
    24	
  > 25		local_irq_pmu_save(flags);
    26		__asm__ __volatile__(
    27		PPC_LL" %0,0(%2)\n\
    28		add     %0,%1,%0\n"
    29		PPC_STL" %0,0(%2)\n"
    30		: "=&r" (t)
    31		: "r" (i), "r" (&(l->a.counter)));
  > 32		local_irq_pmu_restore(flags);
    33	}
    34	
    35	static __inline__ void local_sub(long i, local_t *l)

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