Hi all, After merging the kvm tree, today's linux-next build (arm64 defconfig) failed like this: In file included from <command-line>: In function 'check_res_bits', inlined from 'kvm_sys_reg_table_init' at arch/arm64/kvm/sys_regs.c:4109:2: include/linux/compiler_types.h:449:45: error: call to '__compiletime_assert_591' declared with attribute error: BUILD_BUG_ON failed: ID_AA64DFR1_EL1_RES0 != (GENMASK_ULL(63, 0)) 449 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^ include/linux/compiler_types.h:430:25: note: in definition of macro '__compiletime_assert' 430 | prefix ## suffix(); \ | ^~~~~~ include/linux/compiler_types.h:449:9: note: in expansion of macro '_compiletime_assert' 449 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ arch/arm64/kvm/check-res-bits.h:58:9: note: in expansion of macro 'BUILD_BUG_ON' 58 | BUILD_BUG_ON(ID_AA64DFR1_EL1_RES0 != (GENMASK_ULL(63, 0))); | ^~~~~~~~~~~~ I bisected this to the merge of the kvm-arm tree into linux-next but I could not figure out why it fails :-( -- Cheers, Stephen Rothwell
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