arm64: Kconfig: select HAVE_FUTEX_CMPXCHG
arm64 provides always working implementation of futex_atomic_cmpxchg_inatomic(), so there is no need to check it runtime. Reported-by: Piyush swami <Piyush.swami@arm.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Will Deacon <will@kernel.org>
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@ -161,6 +161,7 @@ config ARM64
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select HAVE_PERF_USER_STACK_DUMP
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select HAVE_PERF_USER_STACK_DUMP
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select HAVE_REGS_AND_STACK_ACCESS_API
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select HAVE_REGS_AND_STACK_ACCESS_API
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select HAVE_FUNCTION_ARG_ACCESS_API
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select HAVE_FUNCTION_ARG_ACCESS_API
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select HAVE_FUTEX_CMPXCHG if FUTEX
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select HAVE_RCU_TABLE_FREE
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select HAVE_RCU_TABLE_FREE
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select HAVE_RSEQ
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select HAVE_RSEQ
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select HAVE_STACKPROTECTOR
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select HAVE_STACKPROTECTOR
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