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Date: Thu, 2 Jun 2022 09:10:24 -0700 From: "Paul E. McKenney" <paulmck@...nel.org> To: kernel test robot <lkp@...el.com> Cc: linux-kernel@...r.kernel.org Subject: Re: [paulmck-rcu:dev.2022.05.26a] BUILD REGRESSION 2ba9ea99370a332f696257f3e4ab417d883f1aa4 On Thu, Jun 02, 2022 at 03:32:56PM +0800, kernel test robot wrote: > tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2022.05.26a > branch HEAD: 2ba9ea99370a332f696257f3e4ab417d883f1aa4 fixup! rcu-tasks: Handle idle tasks for recently offlined CPUs > > Unverified Error/Warning (likely false positive, please contact us if interested): > > ERROR: modpost: "rcu_trc_cmpxchg_need_qs" [kernel/rcu/rcuscale.ko] undefined! > ERROR: modpost: "rcu_trc_cmpxchg_need_qs" [kernel/torture.ko] undefined! Good catch, I am folding a fix in with attribution. Thanx, Paul > arch/alpha/include/asm/cmpxchg.h:62:17: error: cast to union type from type not present in union > arch/arm/include/asm/cmpxchg.h:211:9: error: cast to union type from type not present in union > arch/arm64/include/asm/cmpxchg.h:182:17: error: cast to union type from type not present in union > arch/m68k/include/asm/cmpxchg.h:121:11: error: cast to union type from type not present in union > arch/parisc/include/asm/cmpxchg.h:85:9: error: cast to union type from type not present in union > arch/powerpc/include/asm/cmpxchg.h:474:6: error: cast to union type from type not present in union > arch/s390/include/asm/cmpxchg.h:160:17: error: cast to union type from type not present in union > arch/sparc/include/asm/cmpxchg_64.h:175:6: error: cast to union type from type not present in union > include/asm-generic/cmpxchg.h:92:10: error: cast to union type from type not present in union > include/linux/atomic/atomic-instrumented.h:1912:1: error: incompatible types when assigning to type 'union rcu_special' from type 'int' > kernel/rcu/tasks.h:1243:8: error: initializing 'typeof (*(__ai_ptr))' (aka 'union rcu_special') with an expression of incompatible type 'int' > kernel/rcu/tasks.h:1243:8: error: operand of type 'union rcu_special' where arithmetic or pointer type is required > kernel/rcu/tasks.h:1243:9: error: aggregate value used where an integer was expected > > Error/Warning ids grouped by kconfigs: > > gcc_recent_errors > |-- alpha-allyesconfig > | `-- arch-alpha-include-asm-cmpxchg.h:error:cast-to-union-type-from-type-not-present-in-union > |-- arm-randconfig-r005-20220531 > | |-- arch-arm-include-asm-cmpxchg.h:error:cast-to-union-type-from-type-not-present-in-union > | `-- include-linux-atomic-atomic-instrumented.h:error:incompatible-types-when-assigning-to-type-union-rcu_special-from-type-int > |-- arm64-randconfig-r013-20220531 > | `-- arch-arm64-include-asm-cmpxchg.h:error:cast-to-union-type-from-type-not-present-in-union > |-- i386-randconfig-a003 > | |-- ERROR:rcu_trc_cmpxchg_need_qs-kernel-rcu-rcuscale.ko-undefined > | `-- ERROR:rcu_trc_cmpxchg_need_qs-kernel-torture.ko-undefined > |-- m68k-allmodconfig > | `-- arch-m68k-include-asm-cmpxchg.h:error:cast-to-union-type-from-type-not-present-in-union > |-- m68k-defconfig > | |-- include-asm-generic-cmpxchg.h:error:cast-to-union-type-from-type-not-present-in-union > | `-- kernel-rcu-tasks.h:error:aggregate-value-used-where-an-integer-was-expected > |-- parisc-allyesconfig > | `-- arch-parisc-include-asm-cmpxchg.h:error:cast-to-union-type-from-type-not-present-in-union > |-- powerpc-allyesconfig > | `-- arch-powerpc-include-asm-cmpxchg.h:error:cast-to-union-type-from-type-not-present-in-union > |-- s390-randconfig-r044-20220531 > | `-- arch-s390-include-asm-cmpxchg.h:error:cast-to-union-type-from-type-not-present-in-union > |-- sparc-allyesconfig > | `-- arch-sparc-include-asm-cmpxchg_64.h:error:cast-to-union-type-from-type-not-present-in-union > `-- x86_64-randconfig-a004 > |-- ERROR:rcu_trc_cmpxchg_need_qs-kernel-rcu-rcuscale.ko-undefined > `-- ERROR:rcu_trc_cmpxchg_need_qs-kernel-torture.ko-undefined > > clang_recent_errors > |-- arm64-buildonly-randconfig-r002-20220531 > | `-- kernel-rcu-tasks.h:error:operand-of-type-union-rcu_special-where-arithmetic-or-pointer-type-is-required > `-- hexagon-randconfig-r033-20220531 > `-- kernel-rcu-tasks.h:error:initializing-typeof-(-(__ai_ptr))-(aka-union-rcu_special-)-with-an-expression-of-incompatible-type-int > > elapsed time: 741m > > configs tested: 84 > configs skipped: 3 > > gcc tested configs: > arm allmodconfig > arm allyesconfig > arm64 allyesconfig > arm defconfig > arm64 defconfig > ia64 defconfig > ia64 allmodconfig > ia64 allyesconfig > m68k defconfig > m68k allmodconfig > m68k allyesconfig > alpha defconfig > csky defconfig > nios2 allyesconfig > alpha allyesconfig > sh allmodconfig > arc defconfig > h8300 allyesconfig > xtensa allyesconfig > parisc defconfig > s390 allmodconfig > parisc allyesconfig > s390 defconfig > s390 allyesconfig > parisc64 defconfig > nios2 defconfig > arc allyesconfig > i386 debian-10.3-kselftests > i386 debian-10.3 > i386 defconfig > i386 allyesconfig > sparc allyesconfig > sparc defconfig > mips allyesconfig > mips allmodconfig > powerpc allnoconfig > powerpc allmodconfig > powerpc allyesconfig > x86_64 randconfig-a002 > x86_64 randconfig-a006 > x86_64 randconfig-a004 > i386 randconfig-a001 > i386 randconfig-a003 > i386 randconfig-a005 > x86_64 randconfig-a015 > x86_64 randconfig-a013 > x86_64 randconfig-a011 > i386 randconfig-a014 > i386 randconfig-a012 > i386 randconfig-a016 > arc randconfig-r043-20220531 > riscv randconfig-r042-20220531 > s390 randconfig-r044-20220531 > riscv allnoconfig > riscv allyesconfig > riscv allmodconfig > riscv nommu_k210_defconfig > riscv rv32_defconfig > riscv nommu_virt_defconfig > riscv defconfig > um i386_defconfig > um x86_64_defconfig > x86_64 defconfig > x86_64 kexec > x86_64 rhel-8.3 > x86_64 allyesconfig > x86_64 rhel-8.3-kselftests > x86_64 rhel-8.3-syz > x86_64 rhel-8.3-func > x86_64 rhel-8.3-kunit > > clang tested configs: > x86_64 randconfig-a001 > x86_64 randconfig-a003 > x86_64 randconfig-a005 > i386 randconfig-a002 > i386 randconfig-a004 > i386 randconfig-a006 > x86_64 randconfig-a012 > x86_64 randconfig-a014 > x86_64 randconfig-a016 > i386 randconfig-a013 > i386 randconfig-a015 > i386 randconfig-a011 > hexagon randconfig-r041-20220531 > hexagon randconfig-r045-20220531 > > -- > 0-DAY CI Kernel Test Service > https://01.org/lkp
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