Messages in this thread | | | Date | Thu, 29 Apr 2021 22:06:09 +0800 | From | kernel test robot <> | Subject | arch/powerpc/platforms/83xx/suspend.c:210:3: error: implicit declaration of function 'enable_kernel_fp' |
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Hi Christophe,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d72cd4ad4174cfd2257c426ad51e4f53bcfde9c9 commit: 7d68c89169508064c460a1208f38ed0589d226fa powerpc/32s: Allow deselecting CONFIG_PPC_FPU on mpc832x date: 5 months ago config: powerpc64-randconfig-r022-20210429 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9131a078901b00e68248a27a4f8c4b11bb1db1ae) 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 # install powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # 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=clang make.cross W=1 ARCH=powerpc64
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 >>):
>> arch/powerpc/platforms/83xx/suspend.c:210:3: error: implicit declaration of function 'enable_kernel_fp' [-Werror,-Wimplicit-function-declaration] enable_kernel_fp(); ^ 1 error generated.
Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for HOTPLUG_CPU Depends on SMP && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE Selected by - PM_SLEEP_SMP && SMP && (ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE && PM_SLEEP
vim +/enable_kernel_fp +210 arch/powerpc/platforms/83xx/suspend.c
87faaabb09d080 Anton Vorontsov 2009-12-10 173 d49747bdfb2dde Scott Wood 2007-10-09 174 static int mpc83xx_suspend_enter(suspend_state_t state) d49747bdfb2dde Scott Wood 2007-10-09 175 { d49747bdfb2dde Scott Wood 2007-10-09 176 int ret = -EAGAIN; d49747bdfb2dde Scott Wood 2007-10-09 177 d49747bdfb2dde Scott Wood 2007-10-09 178 /* Don't go to sleep if there's a race where pci_pm_state changes d49747bdfb2dde Scott Wood 2007-10-09 179 * between the agent thread checking it and the PM code disabling d49747bdfb2dde Scott Wood 2007-10-09 180 * interrupts. d49747bdfb2dde Scott Wood 2007-10-09 181 */ d49747bdfb2dde Scott Wood 2007-10-09 182 if (wake_from_pci) { d49747bdfb2dde Scott Wood 2007-10-09 183 if (pci_pm_state != (deep_sleeping ? 3 : 2)) d49747bdfb2dde Scott Wood 2007-10-09 184 goto out; d49747bdfb2dde Scott Wood 2007-10-09 185 d49747bdfb2dde Scott Wood 2007-10-09 186 out_be32(&pmc_regs->config1, d49747bdfb2dde Scott Wood 2007-10-09 187 in_be32(&pmc_regs->config1) | PMCCR1_PME_EN); d49747bdfb2dde Scott Wood 2007-10-09 188 } d49747bdfb2dde Scott Wood 2007-10-09 189 d49747bdfb2dde Scott Wood 2007-10-09 190 /* Put the system into low-power mode and the RAM d49747bdfb2dde Scott Wood 2007-10-09 191 * into self-refresh mode once the core goes to d49747bdfb2dde Scott Wood 2007-10-09 192 * sleep. d49747bdfb2dde Scott Wood 2007-10-09 193 */ d49747bdfb2dde Scott Wood 2007-10-09 194 d49747bdfb2dde Scott Wood 2007-10-09 195 out_be32(&pmc_regs->config, PMCCR_SLPEN | PMCCR_DLPEN); d49747bdfb2dde Scott Wood 2007-10-09 196 d49747bdfb2dde Scott Wood 2007-10-09 197 /* If it has deep sleep (i.e. it's an 831x or compatible), d49747bdfb2dde Scott Wood 2007-10-09 198 * disable power to the core upon entering sleep mode. This will d49747bdfb2dde Scott Wood 2007-10-09 199 * require going through the boot firmware upon a wakeup event. d49747bdfb2dde Scott Wood 2007-10-09 200 */ d49747bdfb2dde Scott Wood 2007-10-09 201 d49747bdfb2dde Scott Wood 2007-10-09 202 if (deep_sleeping) { 87faaabb09d080 Anton Vorontsov 2009-12-10 203 mpc83xx_suspend_save_regs(); 87faaabb09d080 Anton Vorontsov 2009-12-10 204 d49747bdfb2dde Scott Wood 2007-10-09 205 out_be32(&pmc_regs->mask, PMCER_ALL); d49747bdfb2dde Scott Wood 2007-10-09 206 d49747bdfb2dde Scott Wood 2007-10-09 207 out_be32(&pmc_regs->config1, d49747bdfb2dde Scott Wood 2007-10-09 208 in_be32(&pmc_regs->config1) | PMCCR1_POWER_OFF); d49747bdfb2dde Scott Wood 2007-10-09 209 d49747bdfb2dde Scott Wood 2007-10-09 @210 enable_kernel_fp(); d49747bdfb2dde Scott Wood 2007-10-09 211 d49747bdfb2dde Scott Wood 2007-10-09 212 mpc83xx_enter_deep_sleep(immrbase); d49747bdfb2dde Scott Wood 2007-10-09 213 d49747bdfb2dde Scott Wood 2007-10-09 214 out_be32(&pmc_regs->config1, d49747bdfb2dde Scott Wood 2007-10-09 215 in_be32(&pmc_regs->config1) & ~PMCCR1_POWER_OFF); d49747bdfb2dde Scott Wood 2007-10-09 216 d49747bdfb2dde Scott Wood 2007-10-09 217 out_be32(&pmc_regs->mask, PMCER_PMCI); 87faaabb09d080 Anton Vorontsov 2009-12-10 218 87faaabb09d080 Anton Vorontsov 2009-12-10 219 mpc83xx_suspend_restore_regs(); d49747bdfb2dde Scott Wood 2007-10-09 220 } else { d49747bdfb2dde Scott Wood 2007-10-09 221 out_be32(&pmc_regs->mask, PMCER_PMCI); d49747bdfb2dde Scott Wood 2007-10-09 222 d49747bdfb2dde Scott Wood 2007-10-09 223 mpc6xx_enter_standby(); d49747bdfb2dde Scott Wood 2007-10-09 224 } d49747bdfb2dde Scott Wood 2007-10-09 225 d49747bdfb2dde Scott Wood 2007-10-09 226 ret = 0; d49747bdfb2dde Scott Wood 2007-10-09 227 d49747bdfb2dde Scott Wood 2007-10-09 228 out: d49747bdfb2dde Scott Wood 2007-10-09 229 out_be32(&pmc_regs->config1, d49747bdfb2dde Scott Wood 2007-10-09 230 in_be32(&pmc_regs->config1) & ~PMCCR1_PME_EN); d49747bdfb2dde Scott Wood 2007-10-09 231 d49747bdfb2dde Scott Wood 2007-10-09 232 return ret; d49747bdfb2dde Scott Wood 2007-10-09 233 } d49747bdfb2dde Scott Wood 2007-10-09 234
:::::: The code at line 210 was first introduced by commit :::::: d49747bdfb2ddebea24d1580da55b79d093d48a9 powerpc/mpc83xx: Power Management support
:::::: TO: Scott Wood <scottwood@freescale.com> :::::: CC: Kumar Gala <galak@kernel.crashing.org>
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