linux-next: build failure after merge of the kvm-arm tree

From: Stephen Rothwell
Date: Thu Feb 22 2024 - 06:04:14 EST


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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