:::::: :::::: Manual check reason: "commit no functional change" ::::::
CC: [email protected] BCC: [email protected] CC: Linux Memory Management List <[email protected]> TO: Sean Christopherson <[email protected]> CC: Paolo Bonzini <[email protected]> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 4112a8699ae2eac797415b9be1d7901b3f79e772 commit: 70e41c31bc7776b262cd9f524df3dfc2b5869a0a [3432/9472] KVM: x86/mmu: Use common logic for computing the 32/64-bit base PA mask :::::: branch date: 18 hours ago :::::: commit date: 3 weeks ago config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20220712/[email protected]/config) compiler: gcc-11 (Debian 11.3.0-3) 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=70e41c31bc7776b262cd9f524df3dfc2b5869a0a 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 70e41c31bc7776b262cd9f524df3dfc2b5869a0a # 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 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:610:9: 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:726:9: sparse: sparse: context imbalance in 'walk_shadow_page_lockless_end' - unexpected unlock arch/x86/kvm/mmu/mmu.c:2550:9: 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:4618:57: sparse: sparse: cast truncates bits from constant value (ffffff33 becomes 33) arch/x86/kvm/mmu/mmu.c:4620:56: sparse: sparse: cast truncates bits from constant value (ffffff0f becomes f) arch/x86/kvm/mmu/mmu.c:4622:57: sparse: sparse: cast truncates bits from constant value (ffffff55 becomes 55) vim +106 arch/x86/kvm/mmu/paging_tmpl.h b3fcdb04a98035 arch/x86/kvm/mmu/paging_tmpl.h Sean Christopherson 2022-06-14 103 e04da980c35d75 arch/x86/kvm/paging_tmpl.h Joerg Roedel 2009-07-27 104 static gfn_t gpte_to_gfn_lvl(pt_element_t gpte, int lvl) 5fb07ddb183eb4 drivers/kvm/paging_tmpl.h Avi Kivity 2007-11-21 105 { e04da980c35d75 arch/x86/kvm/paging_tmpl.h Joerg Roedel 2009-07-27 @106 return (gpte & PT_LVL_ADDR_MASK(lvl)) >> PAGE_SHIFT; 5fb07ddb183eb4 drivers/kvm/paging_tmpl.h Avi Kivity 2007-11-21 107 } 5fb07ddb183eb4 drivers/kvm/paging_tmpl.h Avi Kivity 2007-11-21 108 :::::: The code at line 106 was first introduced by commit :::::: e04da980c35d75fa050ba4009ad99025432d8d7d KVM: MMU: make page walker aware of mapping levels :::::: TO: Joerg Roedel <[email protected]> :::::: CC: Avi Kivity <[email protected]> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
