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Date: Fri, 8 Oct 2021 17:19:45 +0800
From: kernel test robot <lkp@...el.com>
To: Christophe Leroy <christophe.leroy@...roup.eu>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Michael Ellerman <mpe@...erman.id.au>
Subject: arch/powerpc/platforms/83xx/suspend.c:210:17: error: implicit
declaration of function 'enable_kernel_fp'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 1da38549dd64c7f5dd22427f12dfa8db3d8a722b
commit: 7d68c89169508064c460a1208f38ed0589d226fa powerpc/32s: Allow deselecting CONFIG_PPC_FPU on mpc832x
date: 10 months ago
config: powerpc64-randconfig-r013-20211008 (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@...el.com>
All errors (new ones prefixed by >>):
arch/powerpc/platforms/83xx/suspend.c: In function 'mpc83xx_suspend_enter':
>> arch/powerpc/platforms/83xx/suspend.c:210:17: error: implicit declaration of function 'enable_kernel_fp' [-Werror=implicit-function-declaration]
210 | enable_kernel_fp();
| ^~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/enable_kernel_fp +210 arch/powerpc/platforms/83xx/suspend.c
87faaabb09d0802 Anton Vorontsov 2009-12-10 173
d49747bdfb2ddeb Scott Wood 2007-10-09 174 static int mpc83xx_suspend_enter(suspend_state_t state)
d49747bdfb2ddeb Scott Wood 2007-10-09 175 {
d49747bdfb2ddeb Scott Wood 2007-10-09 176 int ret = -EAGAIN;
d49747bdfb2ddeb Scott Wood 2007-10-09 177
d49747bdfb2ddeb Scott Wood 2007-10-09 178 /* Don't go to sleep if there's a race where pci_pm_state changes
d49747bdfb2ddeb Scott Wood 2007-10-09 179 * between the agent thread checking it and the PM code disabling
d49747bdfb2ddeb Scott Wood 2007-10-09 180 * interrupts.
d49747bdfb2ddeb Scott Wood 2007-10-09 181 */
d49747bdfb2ddeb Scott Wood 2007-10-09 182 if (wake_from_pci) {
d49747bdfb2ddeb Scott Wood 2007-10-09 183 if (pci_pm_state != (deep_sleeping ? 3 : 2))
d49747bdfb2ddeb Scott Wood 2007-10-09 184 goto out;
d49747bdfb2ddeb Scott Wood 2007-10-09 185
d49747bdfb2ddeb Scott Wood 2007-10-09 186 out_be32(&pmc_regs->config1,
d49747bdfb2ddeb Scott Wood 2007-10-09 187 in_be32(&pmc_regs->config1) | PMCCR1_PME_EN);
d49747bdfb2ddeb Scott Wood 2007-10-09 188 }
d49747bdfb2ddeb Scott Wood 2007-10-09 189
d49747bdfb2ddeb Scott Wood 2007-10-09 190 /* Put the system into low-power mode and the RAM
d49747bdfb2ddeb Scott Wood 2007-10-09 191 * into self-refresh mode once the core goes to
d49747bdfb2ddeb Scott Wood 2007-10-09 192 * sleep.
d49747bdfb2ddeb Scott Wood 2007-10-09 193 */
d49747bdfb2ddeb Scott Wood 2007-10-09 194
d49747bdfb2ddeb Scott Wood 2007-10-09 195 out_be32(&pmc_regs->config, PMCCR_SLPEN | PMCCR_DLPEN);
d49747bdfb2ddeb Scott Wood 2007-10-09 196
d49747bdfb2ddeb Scott Wood 2007-10-09 197 /* If it has deep sleep (i.e. it's an 831x or compatible),
d49747bdfb2ddeb Scott Wood 2007-10-09 198 * disable power to the core upon entering sleep mode. This will
d49747bdfb2ddeb Scott Wood 2007-10-09 199 * require going through the boot firmware upon a wakeup event.
d49747bdfb2ddeb Scott Wood 2007-10-09 200 */
d49747bdfb2ddeb Scott Wood 2007-10-09 201
d49747bdfb2ddeb Scott Wood 2007-10-09 202 if (deep_sleeping) {
87faaabb09d0802 Anton Vorontsov 2009-12-10 203 mpc83xx_suspend_save_regs();
87faaabb09d0802 Anton Vorontsov 2009-12-10 204
d49747bdfb2ddeb Scott Wood 2007-10-09 205 out_be32(&pmc_regs->mask, PMCER_ALL);
d49747bdfb2ddeb Scott Wood 2007-10-09 206
d49747bdfb2ddeb Scott Wood 2007-10-09 207 out_be32(&pmc_regs->config1,
d49747bdfb2ddeb Scott Wood 2007-10-09 208 in_be32(&pmc_regs->config1) | PMCCR1_POWER_OFF);
d49747bdfb2ddeb Scott Wood 2007-10-09 209
d49747bdfb2ddeb Scott Wood 2007-10-09 @210 enable_kernel_fp();
d49747bdfb2ddeb Scott Wood 2007-10-09 211
d49747bdfb2ddeb Scott Wood 2007-10-09 212 mpc83xx_enter_deep_sleep(immrbase);
d49747bdfb2ddeb Scott Wood 2007-10-09 213
d49747bdfb2ddeb Scott Wood 2007-10-09 214 out_be32(&pmc_regs->config1,
d49747bdfb2ddeb Scott Wood 2007-10-09 215 in_be32(&pmc_regs->config1) & ~PMCCR1_POWER_OFF);
d49747bdfb2ddeb Scott Wood 2007-10-09 216
d49747bdfb2ddeb Scott Wood 2007-10-09 217 out_be32(&pmc_regs->mask, PMCER_PMCI);
87faaabb09d0802 Anton Vorontsov 2009-12-10 218
87faaabb09d0802 Anton Vorontsov 2009-12-10 219 mpc83xx_suspend_restore_regs();
d49747bdfb2ddeb Scott Wood 2007-10-09 220 } else {
d49747bdfb2ddeb Scott Wood 2007-10-09 221 out_be32(&pmc_regs->mask, PMCER_PMCI);
d49747bdfb2ddeb Scott Wood 2007-10-09 222
d49747bdfb2ddeb Scott Wood 2007-10-09 223 mpc6xx_enter_standby();
d49747bdfb2ddeb Scott Wood 2007-10-09 224 }
d49747bdfb2ddeb Scott Wood 2007-10-09 225
d49747bdfb2ddeb Scott Wood 2007-10-09 226 ret = 0;
d49747bdfb2ddeb Scott Wood 2007-10-09 227
d49747bdfb2ddeb Scott Wood 2007-10-09 228 out:
d49747bdfb2ddeb Scott Wood 2007-10-09 229 out_be32(&pmc_regs->config1,
d49747bdfb2ddeb Scott Wood 2007-10-09 230 in_be32(&pmc_regs->config1) & ~PMCCR1_PME_EN);
d49747bdfb2ddeb Scott Wood 2007-10-09 231
d49747bdfb2ddeb Scott Wood 2007-10-09 232 return ret;
d49747bdfb2ddeb Scott Wood 2007-10-09 233 }
d49747bdfb2ddeb 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@...escale.com>
:::::: CC: Kumar Gala <galak@...nel.crashing.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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