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Subject[ardb:arm64-ro-page-tables-pkvm-v5.17 15/28] include/linux/pgtable.h:84:29: error: redefinition of 'p4d_index'
tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git arm64-ro-page-tables-pkvm-v5.17
head: 1faeabde0ba3c81ad666ab924ab79ef64843d40d
commit: 8009c0d425d69c34521e0f8123ff62786f1ac8fa [15/28] mm: add default definition of p4d_index()
config: x86_64-randconfig-a001 (https://download.01.org/0day-ci/archive/20220221/202202210124.8WuKWr52-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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/ardb/linux.git/commit/?id=8009c0d425d69c34521e0f8123ff62786f1ac8fa
git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
git fetch --no-tags ardb arm64-ro-page-tables-pkvm-v5.17
git checkout 8009c0d425d69c34521e0f8123ff62786f1ac8fa
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 prepare

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/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:33:
>> include/linux/pgtable.h:84:29: error: redefinition of 'p4d_index'
static inline unsigned long p4d_index(unsigned long address)
^
arch/x86/include/asm/pgtable.h:904:29: note: previous definition is here
static inline unsigned long p4d_index(unsigned long address)
^
1 error generated.
make[2]: *** [scripts/Makefile.build:121: arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1191: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:219: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.


vim +/p4d_index +84 include/linux/pgtable.h

82
83 #ifndef p4d_index
> 84 static inline unsigned long p4d_index(unsigned long address)
85 {
86 return (address >> P4D_SHIFT) & (PTRS_PER_P4D - 1);
87 }
88 #define p4d_index p4d_index
89 #endif
90

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

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