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Kconfig: remove HAVE_LATENCYTOP_SUPPORT

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As illustrated by commit a3afe70b83 ("[S390] latencytop s390
support."), HAVE_LATENCYTOP_SUPPORT is defined by an architecture to
advertise an implementation of save_stack_trace_tsk.

However, as of 9212ddb5ea ("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@arm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Helge Deller <deller@gmx.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Will Deacon 2016-01-15 16:58:07 -08:00 committed by Linus Torvalds
parent 3f1bfd9413
commit da48d094ce
12 changed files with 0 additions and 37 deletions
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3
arch/arc/Kconfig
View file

@ -73,9 +73,6 @@ config STACKTRACE_SUPPORT
def_bool y
select STACKTRACE
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config HAVE_ARCH_TRANSPARENT_HUGEPAGE
def_bool y
depends on ARC_MMU_V4

5
arch/arm/Kconfig
View file

@ -168,11 +168,6 @@ config STACKTRACE_SUPPORT
bool
default y
config HAVE_LATENCYTOP_SUPPORT
bool
depends on !SMP
default y
config LOCKDEP_SUPPORT
bool
default y

3
arch/metag/Kconfig
View file

@ -36,9 +36,6 @@ config STACKTRACE_SUPPORT
config LOCKDEP_SUPPORT
def_bool y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config RWSEM_GENERIC_SPINLOCK
def_bool y

3
arch/microblaze/Kconfig
View file

@ -67,9 +67,6 @@ config STACKTRACE_SUPPORT
config LOCKDEP_SUPPORT
def_bool y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
source "init/Kconfig"
source "kernel/Kconfig.freezer"

3
arch/parisc/Kconfig
View file

@ -79,9 +79,6 @@ config TIME_LOW_RES
depends on SMP
default y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
# unless you want to implement ACPI on PA-RISC ... ;-)
config PM
bool

3
arch/powerpc/Kconfig
View file

@ -47,9 +47,6 @@ config STACKTRACE_SUPPORT
bool
default y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config TRACE_IRQFLAGS_SUPPORT
bool
default y

3
arch/s390/Kconfig
View file

@ -10,9 +10,6 @@ config LOCKDEP_SUPPORT
config STACKTRACE_SUPPORT
def_bool y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config RWSEM_GENERIC_SPINLOCK
bool

3
arch/sh/Kconfig
View file

@ -130,9 +130,6 @@ config STACKTRACE_SUPPORT
config LOCKDEP_SUPPORT
def_bool y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config ARCH_HAS_ILOG2_U32
def_bool n

4
arch/sparc/Kconfig
View file

@ -101,10 +101,6 @@ config LOCKDEP_SUPPORT
bool
default y if SPARC64
config HAVE_LATENCYTOP_SUPPORT
bool
default y if SPARC64
config ARCH_HIBERNATION_POSSIBLE
def_bool y if SPARC64

3
arch/unicore32/Kconfig
View file

@ -34,9 +34,6 @@ config NO_IOPORT_MAP
config STACKTRACE_SUPPORT
def_bool y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config LOCKDEP_SUPPORT
def_bool y

3
arch/x86/Kconfig
View file

@ -180,9 +180,6 @@ config LOCKDEP_SUPPORT
config STACKTRACE_SUPPORT
def_bool y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config MMU
def_bool y

1
lib/Kconfig.debug
View file

@ -1597,7 +1597,6 @@ config FAULT_INJECTION_STACKTRACE_FILTER
config LATENCYTOP
bool "Latency measuring infrastructure"
depends on HAVE_LATENCYTOP_SUPPORT
depends on DEBUG_KERNEL
depends on STACKTRACE_SUPPORT
depends on PROC_FS