[ammarfaizi2-block:arm64/linux/devel/kmalloc-minalign 10/11] arch/arm64/kernel/cacheinfo.c:101:14: warning: no previous prototype for 'arch_kmalloc_minalign'

[ammarfaizi2-block:arm64/linux/devel/kmalloc-minalign 10/11] arch/arm64/kernel/cacheinfo.c:101:14: warning: no previous prototype for 'arch_kmalloc_minalign'

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block arm64/linux/devel/kmalloc-minalign
head:   2810d5be00a60d5996cd955c2485c17ef1e1e7af
commit: 6c3838f40cf6a9b31bbb3d78059a81ca03fb2cfc [10/11] arm64: Enable dynamic kmalloc() minimum alignment
config: arm64-randconfig-s032-20220330 (https://download.01.org/0day-ci/archive/20220330/202203302330.5gG68JEu-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/ammarfaizi2/linux-block/commit/6c3838f40cf6a9b31bbb3d78059a81ca03fb2cfc
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block arm64/linux/devel/kmalloc-minalign
        git checkout 6c3838f40cf6a9b31bbb3d78059a81ca03fb2cfc
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kernel/

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

All warnings (new ones prefixed by >>):

>> arch/arm64/kernel/cacheinfo.c:101:14: warning: no previous prototype for 'arch_kmalloc_minalign' [-Wmissing-prototypes]
     101 | unsigned int arch_kmalloc_minalign(void)
         |              ^~~~~~~~~~~~~~~~~~~~~


vim +/arch_kmalloc_minalign +101 arch/arm64/kernel/cacheinfo.c

   100	
 > 101	unsigned int arch_kmalloc_minalign(void)

-- 
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https://01.org/lkp