[linux-stable-rc:linux-4.14.y 1547/3393] arch/powerpc/kernel/setup_64.c:846:6: error: no previous declaration for 'entry_flush_enable'

[linux-stable-rc:linux-4.14.y 1547/3393] arch/powerpc/kernel/setup_64.c:846:6: error: no previous declaration for 'entry_flush_enable'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y
head:   a6b2dae3ee3a3f9f4db3fab5b4b9e493fecf4acd
commit: db01cad9efe3c3838a6b3a3f68affd295c4b92d6 [1547/3393] powerpc/64s: flush L1D on kernel entry
config: powerpc-ps3_defconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 7.5.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=db01cad9efe3c3838a6b3a3f68affd295c4b92d6
        git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
        git fetch --no-tags linux-stable-rc linux-4.14.y
        git checkout db01cad9efe3c3838a6b3a3f68affd295c4b92d6
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
                    from arch/powerpc/include/asm/book3s/64/mmu.h:30,
                    from arch/powerpc/include/asm/mmu.h:305,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/current.h:16,
                    from include/linux/sched.h:12,
                    from arch/powerpc/kernel/setup_64.c:17:
   arch/powerpc/include/asm/book3s/64/pgtable.h:1218:15: error: type qualifiers ignored on function return type [-Werror=ignored-qualifiers]
    static inline const int pud_pfn(pud_t pud)
                  ^~~~~
   arch/powerpc/kernel/setup_64.c:133:13: error: no previous declaration for 'check_smt_enabled' [-Werror=missing-declarations]
    void __init check_smt_enabled(void)
                ^~~~~~~~~~~~~~~~~
   arch/powerpc/kernel/setup_64.c:273:13: error: no previous declaration for 'early_setup' [-Werror=missing-declarations]
    void __init early_setup(unsigned long dt_ptr)
                ^~~~~~~~~~~
   arch/powerpc/kernel/setup_64.c:343:6: error: no previous declaration for 'early_setup_secondary' [-Werror=missing-declarations]
    void early_setup_secondary(void)
         ^~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/kernel/setup_64.c:494:13: error: no previous declaration for 'initialize_cache_info' [-Werror=missing-declarations]
    void __init initialize_cache_info(void)
                ^~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/kernel/setup_64.c:580:13: error: no previous declaration for 'irqstack_early_init' [-Werror=missing-declarations]
    void __init irqstack_early_init(void)
                ^~~~~~~~~~~~~~~~~~~
   arch/powerpc/kernel/setup_64.c:648:13: error: no previous declaration for 'emergency_stack_init' [-Werror=missing-declarations]
    void __init emergency_stack_init(void)
                ^~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/kernel/setup_64.c:846:6: error: no previous declaration for 'entry_flush_enable' [-Werror=missing-declarations]
    void entry_flush_enable(bool enable)
         ^~~~~~~~~~~~~~~~~~
   In file included from include/linux/serial_8250.h:14:0,
                    from arch/powerpc/kernel/setup_64.c:33:
   include/linux/serial_core.h:391:19: error: 'earlycon_init_is_deferred' defined but not used [-Werror=unused-const-variable=]
    static const bool earlycon_init_is_deferred;
                      ^~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/entry_flush_enable +846 arch/powerpc/kernel/setup_64.c

   845	
 > 846	void entry_flush_enable(bool enable)
   847	{
   848		if (enable) {
   849			do_entry_flush_fixups(enabled_flush_types);
   850			on_each_cpu(do_nothing, NULL, 1);
   851		} else {
   852			do_entry_flush_fixups(L1D_FLUSH_NONE);
   853		}
   854	
   855		entry_flush = enable;
   856	}
   857	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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