tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 49a8133221c71b935f36a7c340c0271c2a9ee2db
commit: 3af15ff47c4df3af7b36ea8315f43c6b0af49253 [911/10933] KVM: x86/mmu: Change tdp_mmu to a read-only parameter
config: x86_64-randconfig-s023-20230206 (https://download.01.org/0day-ci/archive/20230207/[email protected]/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=3af15ff47c4df3af7b36ea8315f43c6b0af49253
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 3af15ff47c4df3af7b36ea8315f43c6b0af49253
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 olddefconfig
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
sparse warnings: (new ones prefixed by >>)
>> arch/x86/kvm/mmu/mmu.c:102:22: sparse: sparse: symbol 'tdp_mmu_allowed' was not declared. Should it be static?
arch/x86/kvm/mmu/mmu.c:621:9: sparse: sparse: context imbalance in 'walk_shadow_page_lockless_begin' - different lock contexts for basic block
arch/x86/kvm/mmu/mmu.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, arch/x86/kvm/irq.h):
include/linux/rcupdate.h:769:9: sparse: sparse: context imbalance in 'walk_shadow_page_lockless_end' - unexpected unlock
arch/x86/kvm/mmu/mmu.c:2741:9: sparse: sparse: context imbalance in 'mmu_try_to_unsync_pages' - different lock contexts for basic block
arch/x86/kvm/mmu/mmu.c: note: in included file:
arch/x86/kvm/mmu/paging_tmpl.h:106:24: sparse: sparse: cast truncates bits from constant value (ffffffffff000 becomes fffff000)
arch/x86/kvm/mmu/paging_tmpl.h:426:24: sparse: sparse: cast truncates bits from constant value (ffffffffff000 becomes fffff000)
arch/x86/kvm/mmu/mmu.c:4871:57: sparse: sparse: cast truncates bits from constant value (ffffff33 becomes 33)
arch/x86/kvm/mmu/mmu.c:4873:56: sparse: sparse: cast truncates bits from constant value (ffffff0f becomes f)
arch/x86/kvm/mmu/mmu.c:4875:57: sparse: sparse: cast truncates bits from constant value (ffffff55 becomes 55)
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
On Tue, Feb 7, 2023 at 4:51 AM kernel test robot <[email protected]> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: 49a8133221c71b935f36a7c340c0271c2a9ee2db
> commit: 3af15ff47c4df3af7b36ea8315f43c6b0af49253 [911/10933] KVM: x86/mmu: Change tdp_mmu to a read-only parameter
> config: x86_64-randconfig-s023-20230206 (https://download.01.org/0day-ci/archive/20230207/[email protected]/config)
> compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
> reproduce:
> # apt-get install sparse
> # sparse version: v0.6.4-39-gce1a6720-dirty
> # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=3af15ff47c4df3af7b36ea8315f43c6b0af49253
> git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> git fetch --no-tags linux-next master
> git checkout 3af15ff47c4df3af7b36ea8315f43c6b0af49253
> # save the config file
> mkdir build_dir && cp config build_dir/.config
> make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 olddefconfig
> make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <[email protected]>
>
> sparse warnings: (new ones prefixed by >>)
> >> arch/x86/kvm/mmu/mmu.c:102:22: sparse: sparse: symbol 'tdp_mmu_allowed' was not declared. Should it be static?
Yes it should be static. I'll send a patch.