Commit 48fa14f7 authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[ARM] select TLS_REG_EMUL and NEEDS_SYSCALL_FOR_CMPXCHG 



Rather than having a growing dependency line, use select to set
these configuration symbols.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 74945c86

arch/arm/mm/Kconfig

+6 −2
Original line number Diff line number Diff line
@@ -266,12 +266,18 @@ config CPU_32v6K 
# This defines the compiler instruction set which depends on the machine type.

config CPU_32v3

	bool

	select TLS_REG_EMUL if SMP

	select NEEDS_SYSCALL_FOR_CMPXCHG if SMP



config CPU_32v4

	bool

	select TLS_REG_EMUL if SMP

	select NEEDS_SYSCALL_FOR_CMPXCHG if SMP



config CPU_32v5

	bool

	select TLS_REG_EMUL if SMP

	select NEEDS_SYSCALL_FOR_CMPXCHG if SMP



config CPU_32v6

	bool
@@ -417,7 +423,6 @@ config CPU_BPREDICT_DISABLE 


config TLS_REG_EMUL

	bool

	default y if SMP && (CPU_32v5 || CPU_32v4 || CPU_32v3)

	help

	  An SMP system using a pre-ARMv6 processor (there are apparently

	  a few prototypes like that in existence) and therefore access to
@@ -436,7 +441,6 @@ config HAS_TLS_REG 


config NEEDS_SYSCALL_FOR_CMPXCHG

	bool

	default y if SMP && (CPU_32v5 || CPU_32v4 || CPU_32v3)

	help

	  SMP on a pre-ARMv6 processor?  Well OK then.

	  Forget about fast user space cmpxchg support.