From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: [chrome-os:chromeos-4.19 16/20] arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:522:13: error: no previous prototype for 'kvm_arch_mmu_clear_young_walk'
Date: Fri, 02 Jul 2021 02:05:51 +0800 [thread overview]
Message-ID: <202107020245.pqxY5IXp-lkp@intel.com> (raw)
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tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-4.19
head: 1b8b03e93868a5a01c725d01dc50774854990358
commit: 557151a690f6e1041d8e96fdcb37149d52653d05 [16/20] CHROMIUM: mm: multigenerational lru: scan kvm mmu pages
config: powerpc-pseries_defconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
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
git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel
git fetch --no-tags chrome-os chromeos-4.19
git checkout 557151a690f6e1041d8e96fdcb37149d52653d05
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc
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 >>):
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24,
from arch/powerpc/include/asm/book3s/64/mmu.h:30,
from arch/powerpc/include/asm/mmu.h:313,
from arch/powerpc/include/asm/lppaca.h:36,
from arch/powerpc/include/asm/paca.h:21,
from arch/powerpc/include/asm/smp.h:28,
from include/linux/smp.h:64,
from include/linux/percpu.h:7,
from include/linux/context_tracking_state.h:5,
from include/linux/vtime.h:5,
from include/linux/hardirq.h:8,
from include/linux/kvm_host.h:10,
from arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:22:
arch/powerpc/include/asm/book3s/64/pgtable.h:1292:15: error: type qualifiers ignored on function return type [-Werror=ignored-qualifiers]
1292 | static inline const int pud_pfn(pud_t pud)
| ^~~~~
In file included from include/linux/hugetlb.h:454,
from arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:51:
arch/powerpc/include/asm/hugetlb.h: In function 'huge_ptep_clear_flush':
arch/powerpc/include/asm/hugetlb.h:151:8: error: variable 'pte' set but not used [-Werror=unused-but-set-variable]
151 | pte_t pte;
| ^~~
arch/powerpc/kvm/../../../virt/kvm/kvm_main.c: At top level:
>> arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:522:13: error: no previous prototype for 'kvm_arch_mmu_clear_young_walk' [-Werror=missing-prototypes]
522 | __weak void kvm_arch_mmu_clear_young_walk(struct kvm *kvm,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:726:12: error: no previous prototype for 'kvm_arch_post_init_vm' [-Werror=missing-prototypes]
726 | int __weak kvm_arch_post_init_vm(struct kvm *kvm)
| ^~~~~~~~~~~~~~~~~~~~~
arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:735:13: error: no previous prototype for 'kvm_arch_pre_destroy_vm' [-Werror=missing-prototypes]
735 | void __weak kvm_arch_pre_destroy_vm(struct kvm *kvm)
| ^~~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/kvm_host.h:14,
from arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:22:
include/linux/signal.h: In function 'sigemptyset':
include/linux/signal.h:180:22: error: this statement may fall through [-Werror=implicit-fallthrough=]
180 | case 2: set->sig[1] = 0;
| ~~~~~~~~~~~~^~~
include/linux/signal.h:181:2: note: here
181 | case 1: set->sig[0] = 0;
| ^~~~
cc1: all warnings being treated as errors
vim +/kvm_arch_mmu_clear_young_walk +522 arch/powerpc/kvm/../../../virt/kvm/kvm_main.c
521
> 522 __weak void kvm_arch_mmu_clear_young_walk(struct kvm *kvm,
523 struct mmu_notifier_walk *walk)
524 {
525 }
526
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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