Re: [PATCH] arm64: add HAVE_LATENCYTOP_SUPPORT config

From: Shi, Yang
Date: Mon Dec 14 2015 - 17:02:30 EST


Hi folks,

I tried to enable latencytop for arm64 and came across this discussion, so any plan about when this will get merged into mainline? 4.5 merge window?

Thanks,
Yang


On 11/10/2015 3:34 AM, Heiko Carstens wrote:
From: Will Deacon <will.deacon@xxxxxxx>
Date: Tue, 10 Nov 2015 11:10:04 +0000
Subject: [PATCH] Kconfig: remove HAVE_LATENCYTOP_SUPPORT

As illustrated by a3afe70b83fd ("[S390] latencytop s390 support."),
HAVE_LATENCYTOP_SUPPORT is defined by an architecture to advertise an
implementation of save_stack_trace_tsk.

However, as of 9212ddb5eada ("stacktrace: provide save_stack_trace_tsk()
weak alias") a dummy implementation is provided if STACKTRACE=y.
Given that LATENCYTOP already depends on STACKTRACE_SUPPORT and selects
STACKTRACE, we can remove HAVE_LATENCYTOP_SUPPORT altogether.

Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
---
arch/arc/Kconfig | 3 ---
arch/arm/Kconfig | 5 -----
arch/metag/Kconfig | 3 ---
arch/microblaze/Kconfig | 3 ---
arch/parisc/Kconfig | 3 ---
arch/powerpc/Kconfig | 3 ---
arch/s390/Kconfig | 3 ---
arch/sh/Kconfig | 3 ---
arch/sparc/Kconfig | 4 ----
arch/unicore32/Kconfig | 3 ---
arch/x86/Kconfig | 3 ---
lib/Kconfig.debug | 1 -
12 files changed, 37 deletions(-)

Acked-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>


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