[ammarfaizi2-block:powerpc/linux/next-test 142/143] arch/powerpc/kernel/prom_init.c:3302:22: error: no previous prototype for 'prom_init'

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block powerpc/linux/next-test
head:   0a448e06d10e149bf5ed23202d49246b6c4cf77b
commit: 21dad3fa76176d992e8ddf3f49ad0866a5424da5 [142/143] powerpc: Move C prototypes out of asm-prototypes.h
config: powerpc64-randconfig-s031-20220307 (https://download.01.org/0day-ci/archive/20220308/202203081921.SpUkNaaj-lkp@xxxxxxxxx/config)
compiler: powerpc64-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/21dad3fa76176d992e8ddf3f49ad0866a5424da5
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block powerpc/linux/next-test
        git checkout 21dad3fa76176d992e8ddf3f49ad0866a5424da5
        # 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=powerpc SHELL=/bin/bash arch/powerpc/

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

All errors (new ones prefixed by >>):

>> arch/powerpc/kernel/prom_init.c:3302:22: error: no previous prototype for 'prom_init' [-Werror=missing-prototypes]
    3302 | unsigned long __init prom_init(unsigned long r3, unsigned long r4,
         |                      ^~~~~~~~~
   cc1: all warnings being treated as errors


vim +/prom_init +3302 arch/powerpc/kernel/prom_init.c

6a9c930bd7751b Ram Pai        2019-08-19  3296  
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3297  /*
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3298   * We enter here early on, when the Open Firmware prom is still
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3299   * handling exceptions and the MMU hash table for us.
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3300   */
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3301  
9b6b563c0d2d25 Paul Mackerras 2005-10-06 @3302  unsigned long __init prom_init(unsigned long r3, unsigned long r4,
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3303  			       unsigned long pp,
549e8152de8039 Paul Mackerras 2008-08-30  3304  			       unsigned long r6, unsigned long r7,
549e8152de8039 Paul Mackerras 2008-08-30  3305  			       unsigned long kbase)
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3306  {	
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3307  	unsigned long hdr;
9b6b563c0d2d25 Paul Mackerras 2005-10-06  3308  

:::::: The code at line 3302 was first introduced by commit
:::::: 9b6b563c0d2d25ecc3111916031aa7255543fbfb powerpc: Merge in the ppc64 version of the prom code.

:::::: TO: Paul Mackerras <paulus@xxxxxxxxx>
:::::: CC: Paul Mackerras <paulus@xxxxxxxxx>

---
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