From: Vladimir Murzin <vladimir.murzin@arm.com> mainline inclusion from mainline-v5.6-rc1 commit 98346023365931948b78436ae761544b09035b3b category: bugfix bugzilla: 28680 CVE: NA ------------------------------------------------------------------------- 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> Conflicts: arch/arm64/Kconfig Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 95f8b6b..8ef0c73 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -143,6 +143,7 @@ config ARM64 select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP select HAVE_REGS_AND_STACK_ACCESS_API + select HAVE_FUTEX_CMPXCHG if FUTEX select HAVE_RCU_TABLE_FREE select HAVE_RCU_TABLE_INVALIDATE select HAVE_RSEQ -- 1.8.3