On Tue, Feb 7, 2023 at 4:51 AM kernel test robot <lkp@xxxxxxxxx> 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/20230207/202302072055.odjDVd5V-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> > > 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.