arch/powerpc/platforms/52xx/lite5200_pm.c:215:9: error: implicit declaration of function 'enable_kernel_fp'

From: kernel test robot
Date: Mon Sep 27 2021 - 10:46:15 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 92477dd1faa650e50bd3bb35a6c0b8d09198cc35
commit: 7d68c89169508064c460a1208f38ed0589d226fa powerpc/32s: Allow deselecting CONFIG_PPC_FPU on mpc832x
date: 10 months ago
config: powerpc64-randconfig-r002-20210927 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
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/torvalds/linux.git/commit/?id=7d68c89169508064c460a1208f38ed0589d226fa
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 7d68c89169508064c460a1208f38ed0589d226fa
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross 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/platforms/52xx/lite5200_pm.c: In function 'lite5200_pm_enter':
>> arch/powerpc/platforms/52xx/lite5200_pm.c:215:9: error: implicit declaration of function 'enable_kernel_fp' [-Werror=implicit-function-declaration]
215 | enable_kernel_fp();
| ^~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors


vim +/enable_kernel_fp +215 arch/powerpc/platforms/52xx/lite5200_pm.c

ee983079ce0464 Domen Puncer 2007-07-18 204
ee983079ce0464 Domen Puncer 2007-07-18 205 static int lite5200_pm_enter(suspend_state_t state)
ee983079ce0464 Domen Puncer 2007-07-18 206 {
ee983079ce0464 Domen Puncer 2007-07-18 207 /* deep sleep? let mpc52xx code handle that */
ee983079ce0464 Domen Puncer 2007-07-18 208 if (state == PM_SUSPEND_STANDBY) {
ee983079ce0464 Domen Puncer 2007-07-18 209 return mpc52xx_pm_enter(state);
ee983079ce0464 Domen Puncer 2007-07-18 210 }
ee983079ce0464 Domen Puncer 2007-07-18 211
ee983079ce0464 Domen Puncer 2007-07-18 212 lite5200_save_regs();
ee983079ce0464 Domen Puncer 2007-07-18 213
ee983079ce0464 Domen Puncer 2007-07-18 214 /* effectively save FP regs */
ee983079ce0464 Domen Puncer 2007-07-18 @215 enable_kernel_fp();
ee983079ce0464 Domen Puncer 2007-07-18 216
ee983079ce0464 Domen Puncer 2007-07-18 217 lite5200_low_power(sram, mbar);
ee983079ce0464 Domen Puncer 2007-07-18 218
ee983079ce0464 Domen Puncer 2007-07-18 219 lite5200_restore_regs();
ee983079ce0464 Domen Puncer 2007-07-18 220
ee983079ce0464 Domen Puncer 2007-07-18 221 iounmap(mbar);
ee983079ce0464 Domen Puncer 2007-07-18 222 return 0;
ee983079ce0464 Domen Puncer 2007-07-18 223 }
ee983079ce0464 Domen Puncer 2007-07-18 224

:::::: The code at line 215 was first introduced by commit
:::::: ee983079ce04641523b23b8ed02cc3503632351e [POWERPC] MPC5200 low power mode

:::::: TO: Domen Puncer <domen.puncer@xxxxxxxxxxx>
:::::: CC: Paul Mackerras <paulus@xxxxxxxxx>

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

Attachment: .config.gz
Description: application/gzip