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McKenney" Cc: linux-kernel@vger.kernel.org Subject: [paulmck-rcu:cmpxchg2.2026.09.22a] BUILD REGRESSION 54c282c15475ebfae4712fe3ab637c9d19c723d6 Message-ID: <202609241550.gIVMJW7c-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git cmpxchg2.2026.09.22a branch HEAD: 54c282c15475ebfae4712fe3ab637c9d19c723d6 xtensa: Emulate two-byte cmpxchg Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202609230743.rxxNILn7-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202609240539.AkulvjVe-lkp@intel.com arch/arc/include/asm/cmpxchg.h:70:23: warning: unused variable '_old_' [-Wunused-variable] arch/arc/include/asm/cmpxchg.h:71:23: warning: unused variable '_new_' [-Wunused-variable] arch/xtensa/include/asm/cmpxchg.h:88:58: error: pointer type mismatch in conditional expression [-Wincompatible-pointer-types] Error/Warning ids grouped by kconfigs: recent_errors |-- arc-randconfig-1001-20260924 | |-- arch-arc-include-asm-cmpxchg.h:warning:unused-variable-_new_ | `-- arch-arc-include-asm-cmpxchg.h:warning:unused-variable-_old_ `-- xtensa-randconfig-r2102-20260923 `-- arch-xtensa-include-asm-cmpxchg.h:error:pointer-type-mismatch-in-conditional-expression elapsed time: 2154m configs tested: 250 configs skipped: 5 tested configs: alpha allnoconfig gcc-16.1.0 alpha allyesconfig gcc-16.1.0 alpha defconfig gcc-16.1.0 alpha randconfig-r2102-20260923 gcc-8.5.0 cocci arc allmodconfig clang-24 arc allnoconfig gcc-16.1.0 arc allyesconfig clang-24 arc defconfig gcc-16.1.0 arc randconfig-1000-20260924 clang-24 arc randconfig-1001-20260924 clang-24 arc randconfig-r2101-20260923 gcc-8.5.0 cocci arm allnoconfig gcc-16.1.0 arm allyesconfig clang-24 arm defconfig gcc-16.1.0 arm jornada720_defconfig clang-24 arm randconfig-1000-20260924 clang-24 arm randconfig-1001-20260924 clang-24 arm randconfig-1002-20260924 clang-24 arm randconfig-1003-20260924 clang-24 arm randconfig-r2101-20260923 gcc-8.5.0 cocci arm64 allnoconfig gcc-16.1.0 arm64 defconfig gcc-16.1.0 arm64 randconfig-1000-20260924 gcc-11.5.0 arm64 randconfig-1001-20260924 gcc-11.5.0 arm64 randconfig-1002-20260924 gcc-11.5.0 arm64 randconfig-1003-20260924 gcc-11.5.0 arm64 randconfig-r1302-20260924 gcc-12.5.0 sparse arm64 randconfig-r2106-20260923 gcc-15.2.0 cocci arm64 randconfig-r2201-20260923 clang-24 smatch csky allmodconfig gcc-16.1.0 csky allnoconfig gcc-16.1.0 csky defconfig gcc-16.1.0 csky randconfig-1000-20260924 gcc-11.5.0 csky randconfig-1001-20260924 gcc-11.5.0 csky randconfig-r1306-20260924 gcc-14 sparse csky randconfig-r1309-20260924 gcc-14 sparse csky randconfig-r2107-20260923 gcc-15.2.0 cocci hexagon allmodconfig gcc-16.1.0 hexagon allnoconfig gcc-16.1.0 hexagon defconfig gcc-16.1.0 hexagon randconfig-1000-20260924 gcc-8.5.0 hexagon randconfig-1001-20260924 gcc-8.5.0 i386 allmodconfig clang-22 i386 allnoconfig gcc-16.1.0 i386 allyesconfig clang-22 i386 buildonly-randconfig-1000-20260924 gcc-14 i386 buildonly-randconfig-1001-20260924 gcc-14 i386 buildonly-randconfig-1002-20260924 gcc-14 i386 buildonly-randconfig-1003-20260924 gcc-14 i386 buildonly-randconfig-1004-20260924 gcc-14 i386 buildonly-randconfig-1005-20260924 gcc-14 i386 defconfig gcc-16.1.0 i386 randconfig-1000-20260924 gcc-12 i386 randconfig-1001-20260924 gcc-12 i386 randconfig-1002-20260924 gcc-12 i386 randconfig-1003-20260924 gcc-12 i386 randconfig-1004-20260924 gcc-12 i386 randconfig-1005-20260924 gcc-12 i386 randconfig-1006-20260924 gcc-12 i386 randconfig-1007-20260924 clang-22 i386 randconfig-1008-20260924 clang-22 i386 randconfig-1009-20260924 clang-22 i386 randconfig-1010-20260924 clang-22 i386 randconfig-1011-20260924 clang-22 i386 randconfig-1012-20260924 clang-22 i386 randconfig-1013-20260924 clang-22 i386 randconfig-1300-20260924 clang-22 sparse i386 randconfig-1301-20260924 clang-22 sparse i386 randconfig-1302-20260924 clang-22 sparse i386 randconfig-2100-20260923 clang-22 cocci i386 randconfig-2100-20260923 gcc-14 cocci i386 randconfig-2101-20260923 clang-22 cocci i386 randconfig-2102-20260923 clang-22 cocci i386 randconfig-2103-20260923 clang-22 cocci i386 randconfig-2103-20260923 gcc-14 cocci i386 randconfig-2200-20260923 gcc-12 smatch i386 randconfig-r1307-20260924 gcc-14 sparse i386 randconfig-r2100-20260923 gcc-8.5.0 cocci loongarch allmodconfig clang-24 loongarch allnoconfig gcc-16.1.0 loongarch defconfig clang-24 loongarch randconfig-1000-20260924 gcc-8.5.0 loongarch randconfig-1001-20260924 gcc-8.5.0 loongarch randconfig-r1308-20260924 gcc-14 sparse m68k allmodconfig gcc-16.1.0 m68k allnoconfig gcc-16.1.0 m68k allyesconfig clang-24 m68k defconfig clang-24 m68k randconfig-r2103-20260923 gcc-8.5.0 cocci m68k randconfig-r2201-20260923 gcc-11.5.0 smatch microblaze allnoconfig gcc-16.1.0 microblaze allyesconfig gcc-16.1.0 microblaze defconfig clang-24 microblaze randconfig-r2200-20260923 gcc-9.5.0 smatch mips allmodconfig gcc-16.1.0 mips allnoconfig gcc-16.1.0 mips allyesconfig gcc-16.1.0 mips cobalt_defconfig clang-24 mips ip28_defconfig clang-24 mips randconfig-r2104-20260923 gcc-15.2.0 cocci mips randconfig-r2202-20260923 gcc-8.5.0 smatch nios2 allmodconfig clang-20 nios2 allnoconfig clang-24 nios2 defconfig clang-24 nios2 randconfig-1000-20260924 gcc-8.5.0 nios2 randconfig-1001-20260924 gcc-8.5.0 nios2 randconfig-r2103-20260923 gcc-11.5.0 cocci openrisc allmodconfig clang-20 openrisc allnoconfig clang-24 openrisc defconfig gcc-16.1.0 openrisc randconfig-r2106-20260923 gcc-16.1.0 cocci parisc allmodconfig gcc-16.1.0 parisc allnoconfig clang-24 parisc allyesconfig clang-17 parisc defconfig gcc-16.1.0 parisc randconfig-1000-20260924 gcc-8.5.0 parisc randconfig-1001-20260924 gcc-8.5.0 parisc randconfig-r2100-20260923 gcc-8.5.0 cocci parisc randconfig-r2103-20260923 gcc-14 cocci parisc randconfig-r2202-20260923 gcc-12.5.0 smatch parisc64 defconfig clang-24 powerpc allmodconfig gcc-16.1.0 powerpc allnoconfig clang-24 powerpc randconfig-1000-20260924 gcc-8.5.0 powerpc randconfig-1001-20260924 gcc-8.5.0 powerpc warp_defconfig clang-24 powerpc64 randconfig-1000-20260924 gcc-8.5.0 powerpc64 randconfig-1001-20260924 gcc-8.5.0 powerpc64 randconfig-r2105-20260923 gcc-15.2.0 cocci riscv alldefconfig clang-24 riscv allmodconfig clang-24 riscv allnoconfig clang-24 riscv allyesconfig clang-24 riscv defconfig gcc-16.1.0 riscv randconfig-1000-20260924 gcc-15.2.0 riscv randconfig-1001-20260924 gcc-15.2.0 riscv randconfig-2000-20260923 gcc-9.5.0 riscv randconfig-2001-20260923 gcc-8.5.0 riscv randconfig-2001-20260923 gcc-9.5.0 riscv randconfig-r1300-20260924 gcc-12.5.0 sparse riscv randconfig-r1305-20260924 gcc-12.5.0 sparse riscv randconfig-r2107-20260923 gcc-16.1.0 cocci s390 allmodconfig clang-17 s390 allnoconfig clang-24 s390 allyesconfig gcc-16.1.0 s390 defconfig clang-24 s390 defconfig gcc-16.1.0 s390 randconfig-1000-20260924 gcc-15.2.0 s390 randconfig-1001-20260924 gcc-15.2.0 s390 randconfig-2000-20260923 clang-17 s390 randconfig-2000-20260923 gcc-9.5.0 s390 randconfig-2001-20260923 clang-24 s390 randconfig-2001-20260923 gcc-9.5.0 sh allmodconfig gcc-16.1.0 sh allnoconfig clang-24 sh allyesconfig clang-17 sh defconfig gcc-14 sh r7780mp_defconfig clang-24 sh randconfig-1000-20260924 gcc-15.2.0 sh randconfig-1001-20260924 gcc-15.2.0 sh randconfig-2000-20260923 gcc-12.5.0 sh randconfig-2000-20260923 gcc-9.5.0 sh randconfig-2001-20260923 gcc-14.3.0 sh randconfig-2001-20260923 gcc-9.5.0 sh randconfig-r2104-20260923 gcc-16.1.0 cocci sh se7724_defconfig clang-24 sparc allnoconfig clang-24 sparc defconfig gcc-16.1.0 sparc randconfig-1000-20260924 clang-17 sparc randconfig-1001-20260924 clang-17 sparc randconfig-2000-20260923 gcc-14.3.0 sparc randconfig-2001-20260923 gcc-14.3.0 sparc randconfig-r1301-20260924 gcc-12.5.0 sparse sparc randconfig-r1303-20260924 gcc-12.5.0 sparse sparc randconfig-r2105-20260923 gcc-16.1.0 cocci sparc randconfig-r2200-20260923 gcc-8.5.0 smatch sparc randconfig-r2201-20260923 gcc-11.5.0 smatch sparc64 allmodconfig clang-20 sparc64 defconfig gcc-14 sparc64 randconfig-1000-20260924 clang-17 sparc64 randconfig-1001-20260924 clang-17 sparc64 randconfig-2000-20260923 gcc-14.3.0 sparc64 randconfig-2001-20260923 gcc-14.3.0 um allmodconfig clang-17 um allnoconfig clang-24 um allyesconfig gcc-16.1.0 um defconfig gcc-14 um i386_defconfig gcc-14 um randconfig-1000-20260924 clang-17 um randconfig-1001-20260924 clang-17 um randconfig-2000-20260923 gcc-14.3.0 um randconfig-2001-20260923 gcc-14.3.0 um randconfig-r1304-20260924 gcc-12.5.0 sparse um x86_64_defconfig gcc-14 x86_64 allnoconfig clang-24 x86_64 buildonly-randconfig-1000-20260924 clang-22 x86_64 buildonly-randconfig-1001-20260924 clang-22 x86_64 buildonly-randconfig-1002-20260924 clang-22 x86_64 buildonly-randconfig-1003-20260924 clang-22 x86_64 buildonly-randconfig-1004-20260924 clang-22 x86_64 buildonly-randconfig-1005-20260924 clang-22 x86_64 defconfig gcc-14 x86_64 kexec clang-22 x86_64 randconfig-1000-20260924 clang-22 x86_64 randconfig-1001-20260924 clang-22 x86_64 randconfig-1002-20260924 clang-22 x86_64 randconfig-1003-20260924 clang-22 x86_64 randconfig-1004-20260924 clang-22 x86_64 randconfig-1005-20260924 clang-22 x86_64 randconfig-1006-20260924 clang-22 x86_64 randconfig-1007-20260924 clang-22 x86_64 randconfig-1008-20260924 clang-22 x86_64 randconfig-1009-20260924 clang-22 x86_64 randconfig-1010-20260924 clang-22 x86_64 randconfig-1011-20260924 clang-22 x86_64 randconfig-1012-20260924 clang-22 x86_64 randconfig-1013-20260924 clang-22 x86_64 randconfig-1014-20260924 clang-22 x86_64 randconfig-1015-20260924 clang-22 x86_64 randconfig-1016-20260924 clang-22 x86_64 randconfig-1017-20260924 clang-22 x86_64 randconfig-1300-20260924 clang-22 sparse x86_64 randconfig-1301-20260924 clang-22 sparse x86_64 randconfig-1302-20260924 clang-22 sparse x86_64 randconfig-2100-20260923 clang-22 cocci x86_64 randconfig-2101-20260923 clang-22 cocci x86_64 randconfig-2102-20260923 clang-22 cocci x86_64 randconfig-2103-20260923 clang-22 cocci x86_64 randconfig-2200-20260923 gcc-14 smatch x86_64 randconfig-r2100-20260923 gcc-14 cocci x86_64 randconfig-r2101-20260923 gcc-14 cocci x86_64 randconfig-r2102-20260923 gcc-14 cocci x86_64 rhel-9.4 clang-22 x86_64 rhel-9.4-bpf clang-22 x86_64 rhel-9.4-bpf gcc-14 x86_64 rhel-9.4-func clang-22 x86_64 rhel-9.4-kselftests clang-22 x86_64 rhel-9.4-kunit clang-22 x86_64 rhel-9.4-kunit gcc-14 x86_64 rhel-9.4-ltp clang-22 x86_64 rhel-9.4-ltp gcc-14 x86_64 rhel-9.4-rust clang-22 x86_64 rhel-9.4-rust clang-22 xtensa allnoconfig clang-24 xtensa allyesconfig clang-20 xtensa randconfig-1000-20260924 clang-17 xtensa randconfig-1001-20260924 clang-17 xtensa randconfig-2000-20260923 gcc-14.3.0 xtensa randconfig-2001-20260923 gcc-14.3.0 xtensa randconfig-r2102-20260923 gcc-15.2.0 cocci -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki