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Subject[ardb:efi-psci 2/2] drivers/firmware/psci/psci.c:158:9: error: implicit declaration of function 'efi_set_pgd'
tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git efi-psci
head: 4b8d4b95fbd43459a4b0ae3f9020a912f7621884
commit: 4b8d4b95fbd43459a4b0ae3f9020a912f7621884 [2/2] efi: arm: implement PSCI method backed by EFI runtime code
config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20220321/202203211626.cYFXbogy-lkp@intel.com/config)
compiler: arm-linux-gnueabi-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/ardb/linux.git/commit/?id=4b8d4b95fbd43459a4b0ae3f9020a912f7621884
git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
git fetch --no-tags ardb efi-psci
git checkout 4b8d4b95fbd43459a4b0ae3f9020a912f7621884
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash

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 >>):

drivers/firmware/psci/psci.c: In function '__invoke_psci_fn_efi':
>> drivers/firmware/psci/psci.c:158:9: error: implicit declaration of function 'efi_set_pgd' [-Werror=implicit-function-declaration]
158 | efi_set_pgd(&efi_mm);
| ^~~~~~~~~~~
cc1: some warnings being treated as errors


vim +/efi_set_pgd +158 drivers/firmware/psci/psci.c

131
132 static unsigned long __invoke_psci_fn_efi(unsigned long function_id,
133 unsigned long arg0, unsigned long arg1,
134 unsigned long arg2)
135 {
136 unsigned long flags, ret;
137
138 switch (function_id) {
139 case PSCI_0_2_FN_PSCI_VERSION:
140 return PSCI_VERSION(0, 2);
141 case PSCI_0_2_FN_MIGRATE_INFO_TYPE:
142 return PSCI_0_2_TOS_MP;
143 case PSCI_0_2_FN_CPU_SUSPEND:
144 case PSCI_0_2_FN_CPU_OFF:
145 case PSCI_0_2_FN_CPU_ON:
146 case PSCI_0_2_FN_AFFINITY_INFO:
147 case PSCI_0_2_FN64_CPU_SUSPEND:
148 case PSCI_0_2_FN64_CPU_ON:
149 case PSCI_0_2_FN64_AFFINITY_INFO:
150 if (WARN_ON_ONCE(!efi_psci.psci_handler ||
151 !efi_enabled(EFI_RUNTIME_SERVICES)))
152 default:
153 return PSCI_RET_NOT_SUPPORTED;
154 break;
155 }
156
157 raw_local_irq_save(flags);
> 158 efi_set_pgd(&efi_mm);
159
160 ret = efi_psci.psci_handler(function_id, arg0, arg1, arg2);
161
162 efi_set_pgd(current->active_mm);
163 raw_local_irq_restore(flags);
164
165 return ret;
166 }
167

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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