arch/powerpc/mm/book3s64/hash_utils.c:1119:21: error: 'default_uamor' undeclared

[kernel test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   4b6c093e21d36bede0fd88fd0aeb3b03647260e4
commit: 6553fb799f601497ca0703682e2aff131197dc5c powerpc/pkeys: Fix boot failures with Nemo board (A-EON AmigaOne X1000)
date:   6 days ago
config: powerpc-skiroot_defconfig (attached as .config)
compiler: powerpc64le-linux-gcc (GCC) 9.3.0
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
        git checkout 6553fb799f601497ca0703682e2aff131197dc5c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 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/processor.h:9,
                    from arch/powerpc/include/asm/thread_info.h:40,
                    from include/linux/thread_info.h:38,
                    from include/asm-generic/preempt.h:5,
                    from ./arch/powerpc/include/generated/asm/preempt.h:1,
                    from include/linux/preempt.h:78,
                    from include/linux/spinlock.h:51,
                    from arch/powerpc/mm/book3s64/hash_utils.c:21:
   arch/powerpc/mm/book3s64/hash_utils.c: In function 'hash__early_init_mmu_secondary':
>> arch/powerpc/mm/book3s64/hash_utils.c:1119:21: error: 'default_uamor' undeclared (first use in this function)
    1119 |   mtspr(SPRN_UAMOR, default_uamor);
         |                     ^~~~~~~~~~~~~
   arch/powerpc/include/asm/reg.h:1394:33: note: in definition of macro 'mtspr'
    1394 |          : "r" ((unsigned long)(v)) \
         |                                 ^
   arch/powerpc/mm/book3s64/hash_utils.c:1119:21: note: each undeclared identifier is reported only once for each function it appears in
    1119 |   mtspr(SPRN_UAMOR, default_uamor);
         |                     ^~~~~~~~~~~~~
   arch/powerpc/include/asm/reg.h:1394:33: note: in definition of macro 'mtspr'
    1394 |          : "r" ((unsigned long)(v)) \
         |                                 ^
   arch/powerpc/mm/book3s64/hash_utils.c: At top level:
   arch/powerpc/mm/book3s64/hash_utils.c:1503:5: error: no previous prototype for '__hash_page' [-Werror=missing-prototypes]
    1503 | int __hash_page(unsigned long trap, unsigned long ea, unsigned long dsisr,
         |     ^~~~~~~~~~~
   arch/powerpc/mm/book3s64/hash_utils.c:1838:6: error: no previous prototype for 'low_hash_fault' [-Werror=missing-prototypes]
    1838 | void low_hash_fault(struct pt_regs *regs, unsigned long address, int rc)
         |      ^~~~~~~~~~~~~~
   arch/powerpc/mm/book3s64/hash_utils.c:1855:6: error: no previous prototype for 'hpte_insert_repeating' [-Werror=missing-prototypes]
    1855 | long hpte_insert_repeating(unsigned long hash, unsigned long vpn,
         |      ^~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6553fb799f601497ca0703682e2aff131197dc5c
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 6553fb799f601497ca0703682e2aff131197dc5c
vim +/default_uamor +1119 arch/powerpc/mm/book3s64/hash_utils.c

757c74d298dc84 arch/powerpc/mm/hash_utils_64.c       Benjamin Herrenschmidt 2009-03-19  1098  
757c74d298dc84 arch/powerpc/mm/hash_utils_64.c       Benjamin Herrenschmidt 2009-03-19  1099  #ifdef CONFIG_SMP
756d08d1ba169e arch/powerpc/mm/hash_utils_64.c       Aneesh Kumar K.V       2016-04-29  1100  void hash__early_init_mmu_secondary(void)
757c74d298dc84 arch/powerpc/mm/hash_utils_64.c       Benjamin Herrenschmidt 2009-03-19  1101  {
757c74d298dc84 arch/powerpc/mm/hash_utils_64.c       Benjamin Herrenschmidt 2009-03-19  1102  	/* Initialize hash table for that CPU */
b5dcc6096971b7 arch/powerpc/mm/hash_utils_64.c       Aneesh Kumar K.V       2016-04-29  1103  	if (!firmware_has_feature(FW_FEATURE_LPAR)) {
cac4a185405d44 arch/powerpc/mm/hash_utils_64.c       Aneesh Kumar K.V       2016-11-17  1104  
b5dcc6096971b7 arch/powerpc/mm/hash_utils_64.c       Aneesh Kumar K.V       2016-04-29  1105  		if (!cpu_has_feature(CPU_FTR_ARCH_300))
799d6046d3fb55 arch/powerpc/mm/hash_utils_64.c       Paul Mackerras         2005-11-10  1106  			mtspr(SPRN_SDR1, _SDR1);
b5dcc6096971b7 arch/powerpc/mm/hash_utils_64.c       Aneesh Kumar K.V       2016-04-29  1107  		else
5223134029a87d arch/powerpc/mm/book3s64/hash_utils.c Claudio Carvalho       2019-08-22  1108  			set_ptcr_when_no_uv(__pa(partition_tb) |
5223134029a87d arch/powerpc/mm/book3s64/hash_utils.c Claudio Carvalho       2019-08-22  1109  					    (PATB_SIZE_SHIFT - 12));
b5dcc6096971b7 arch/powerpc/mm/hash_utils_64.c       Aneesh Kumar K.V       2016-04-29  1110  	}
376af5947c0e44 arch/powerpc/mm/hash_utils_64.c       Michael Ellerman       2014-07-10  1111  	/* Initialize SLB */
757c74d298dc84 arch/powerpc/mm/hash_utils_64.c       Benjamin Herrenschmidt 2009-03-19  1112  	slb_initialize();
d4748276ae14ce arch/powerpc/mm/hash_utils_64.c       Nicholas Piggin        2017-12-24  1113  
d4748276ae14ce arch/powerpc/mm/hash_utils_64.c       Nicholas Piggin        2017-12-24  1114  	if (cpu_has_feature(CPU_FTR_ARCH_206)
d4748276ae14ce arch/powerpc/mm/hash_utils_64.c       Nicholas Piggin        2017-12-24  1115  			&& cpu_has_feature(CPU_FTR_HVMODE))
d4748276ae14ce arch/powerpc/mm/hash_utils_64.c       Nicholas Piggin        2017-12-24  1116  		tlbiel_all();
e0d8e991be641b arch/powerpc/mm/book3s64/hash_utils.c Aneesh Kumar K.V       2020-07-09  1117  
6553fb799f6014 arch/powerpc/mm/book3s64/hash_utils.c Aneesh Kumar K.V       2020-08-10  1118  	if (IS_ENABLED(CONFIG_PPC_MEM_KEYS) && mmu_has_feature(MMU_FTR_PKEY))
e0d8e991be641b arch/powerpc/mm/book3s64/hash_utils.c Aneesh Kumar K.V       2020-07-09 @1119  		mtspr(SPRN_UAMOR, default_uamor);
799d6046d3fb55 arch/powerpc/mm/hash_utils_64.c       Paul Mackerras         2005-11-10  1120  }
757c74d298dc84 arch/powerpc/mm/hash_utils_64.c       Benjamin Herrenschmidt 2009-03-19  1121  #endif /* CONFIG_SMP */
799d6046d3fb55 arch/powerpc/mm/hash_utils_64.c       Paul Mackerras         2005-11-10  1122  

:::::: The code at line 1119 was first introduced by commit
:::::: e0d8e991be641ba0034c67785bf86f6c097869d6 powerpc/book3s64/kuap: Move UAMOR setup to key init function

:::::: TO: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
:::::: CC: Michael Ellerman <mpe@ellerman.id.au>

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

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