[powerpc:next 26/63] arch/powerpc/math-emu/fre.c:6:5: warning: no previous prototype for 'fre'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
head:   c28c2d4abdf95655001992c4f52dc243ba00cac3
commit: 7245fc5bb7a966852d5bd7779d1f5855530b461a [26/63] powerpc/math-emu: Remove -w build flag and fix warnings
config: powerpc-randconfig-r004-20220907
compiler: powerpc-linux-gcc (GCC) 12.1.0
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/powerpc/linux.git/commit/?id=7245fc5bb7a966852d5bd7779d1f5855530b461a
        git remote add powerpc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
        git fetch --no-tags powerpc next
        git checkout 7245fc5bb7a966852d5bd7779d1f5855530b461a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/math-emu/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <redacted>

All warnings (new ones prefixed by >>):

quoted

arch/powerpc/math-emu/fre.c:6:5: warning: no previous prototype for 'fre' [-Wmissing-prototypes]

       6 | int fre(void *frD, void *frB)
         |     ^~~
--

quoted

arch/powerpc/math-emu/fsqrt.c:11:1: warning: no previous prototype for 'fsqrt' [-Wmissing-prototypes]

      11 | fsqrt(void *frD, void *frB)
         | ^~~~~
--

quoted

arch/powerpc/math-emu/fsqrts.c:12:1: warning: no previous prototype for 'fsqrts' [-Wmissing-prototypes]

      12 | fsqrts(void *frD, void *frB)
         | ^~~~~~
--

quoted

arch/powerpc/math-emu/frsqrtes.c:6:5: warning: no previous prototype for 'frsqrtes' [-Wmissing-prototypes]

       6 | int frsqrtes(void *frD, void *frB)
         |     ^~~~~~~~
--

quoted

arch/powerpc/math-emu/mtfsf.c:10:1: warning: no previous prototype for 'mtfsf' [-Wmissing-prototypes]

      10 | mtfsf(unsigned int FM, u32 *frB)
         | ^~~~~
--

quoted

arch/powerpc/math-emu/mtfsfi.c:10:1: warning: no previous prototype for 'mtfsfi' [-Wmissing-prototypes]

      10 | mtfsfi(unsigned int crfD, unsigned int IMM)
         | ^~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for HOTPLUG_CPU
   Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
   Selected by [y]:
   - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]


vim +/fre +6 arch/powerpc/math-emu/fre.c

04ae9001719c3f Benjamin Herrenschmidt 2013-06-09  5  
04ae9001719c3f Benjamin Herrenschmidt 2013-06-09 @6  int fre(void *frD, void *frB)

:::::: The code at line 6 was first introduced by commit
:::::: 04ae9001719c3f0012d239a7c5aa4136f6b6541d powerpc/math-emu: Fix decoding of some instructions

:::::: TO: Benjamin Herrenschmidt [off-list ref]
:::::: CC: Benjamin Herrenschmidt [off-list ref]

-- 
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