Commit 3297481d authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Thomas Gleixner
Browse files

futex: Remove futex_cmpxchg detection 



Now that all architectures have a working futex implementation in any
configuration, remove the runtime detection code.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: default avatarVineet Gupta <vgupta@kernel.org>
Acked-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
Acked-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Link: https://lore.kernel.org/r/20211026100432.1730393-2-arnd@kernel.org
parent 3f2bedab

arch/arc/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -32,7 +32,6 @@ config ARC 
	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if ARC_MMU_V4

	select HAVE_DEBUG_STACKOVERFLOW

	select HAVE_DEBUG_KMEMLEAK

	select HAVE_FUTEX_CMPXCHG if FUTEX

	select HAVE_IOREMAP_PROT

	select HAVE_KERNEL_GZIP

	select HAVE_KERNEL_LZMA

arch/arm/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -92,7 +92,6 @@ config ARM 
	select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL

	select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL && !CC_IS_CLANG

	select HAVE_FUNCTION_TRACER if !XIP_KERNEL && !(THUMB2_KERNEL && CC_IS_CLANG)

	select HAVE_FUTEX_CMPXCHG if FUTEX

	select HAVE_GCC_PLUGINS

	select HAVE_HW_BREAKPOINT if PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)

	select HAVE_IRQ_TIME_ACCOUNTING

arch/arm64/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -194,7 +194,6 @@ config ARM64 
	select HAVE_REGS_AND_STACK_ACCESS_API

	select HAVE_POSIX_CPU_TIMERS_TASK_WORK

	select HAVE_FUNCTION_ARG_ACCESS_API

	select HAVE_FUTEX_CMPXCHG if FUTEX

	select MMU_GATHER_RCU_TABLE_FREE

	select HAVE_RSEQ

	select HAVE_STACKPROTECTOR

arch/csky/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -52,7 +52,6 @@ config CSKY 
	select HAVE_FUNCTION_TRACER

	select HAVE_FUNCTION_GRAPH_TRACER

	select HAVE_FUNCTION_ERROR_INJECTION

	select HAVE_FUTEX_CMPXCHG if FUTEX && SMP

	select HAVE_FTRACE_MCOUNT_RECORD

	select HAVE_KERNEL_GZIP

	select HAVE_KERNEL_LZO

arch/m68k/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -20,7 +20,6 @@ config M68K 
	select HAVE_ASM_MODVERSIONS

	select HAVE_DEBUG_BUGVERBOSE

	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED

	select HAVE_FUTEX_CMPXCHG if MMU && FUTEX

	select HAVE_MOD_ARCH_SPECIFIC

	select HAVE_UID16

	select MMU_GATHER_NO_RANGE if MMU