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Groups > linux.kernel > #1732667
| From | Stephen Boyd <sboyd@codeaurora.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] arm64: Unconditionally support ARCH_HAVE_NMI_SAFE_CMPXCHG |
| Date | 2017-09-15 03:20 +0200 |
| Message-ID | <upNsu-4eb-9@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
From what I can see there isn't anything about ACPI_APEI_SEA that means the arm64 architecture can or cannot support NMI safe cmpxchg, so the if condition here is not important. Let's remove it. Doing that allows us to support ftrace histograms via CONFIG_HIST_TRIGGERS that depends on the arch having this config selected. Cc: Tyler Baicar <tbaicar@codeaurora.org> Cc: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Cc: James Morse <james.morse@arm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 0df64a6a56d4..27ce2ab7b080 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -21,7 +21,7 @@ config ARM64 select ARCH_HAS_STRICT_KERNEL_RWX select ARCH_HAS_STRICT_MODULE_RWX select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST - select ARCH_HAVE_NMI_SAFE_CMPXCHG if ACPI_APEI_SEA + select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_USE_CMPXCHG_LOCKREF select ARCH_SUPPORTS_MEMORY_FAILURE select ARCH_SUPPORTS_ATOMIC_RMW -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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[PATCH] arm64: Unconditionally support ARCH_HAVE_NMI_SAFE_CMPXCHG Stephen Boyd <sboyd@codeaurora.org> - 2017-09-15 03:20 +0200
Re: [PATCH] arm64: Unconditionally support ARCH_HAVE_NMI_SAFE_CMPXCHG James Morse <james.morse@arm.com> - 2017-09-15 20:40 +0200
Re: [PATCH] arm64: Unconditionally support ARCH_HAVE_NMI_SAFE_CMPXCHG Stephen Boyd <sboyd@codeaurora.org> - 2017-09-15 21:20 +0200
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