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authorArnd Bergmann <arnd@arndb.de>2015-05-26 15:40:44 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2015-05-28 00:29:22 +0100
commitcb1293e2f594558ccc3995acf9c9d7400b3add36 (patch)
treefa12ff3dcfdd1520c27d90ebf2641d49cf21b587
parentc32b76557287a032d1a38032f55c50d3a27dc743 (diff)
ARM: 8375/1: disable some options on ARMv7-M
Kprobes, irqflags tracing and kexec don't currently build on kernels targetting ARMv7-M, so for now, we should just disallow those combinations. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/Kconfig5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1a2ca2ec1719..0536e8d3cda3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -57,7 +57,7 @@ config ARM
select HAVE_KERNEL_LZMA
select HAVE_KERNEL_LZO
select HAVE_KERNEL_XZ
- select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32
+ select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M
select HAVE_KRETPROBES if (HAVE_KPROBES)
select HAVE_MEMBLOCK
select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
@@ -171,7 +171,7 @@ config LOCKDEP_SUPPORT
config TRACE_IRQFLAGS_SUPPORT
bool
- default y
+ default !CPU_V7M
config RWSEM_XCHGADD_ALGORITHM
bool
@@ -1952,6 +1952,7 @@ config XIP_PHYS_ADDR
config KEXEC
bool "Kexec system call (EXPERIMENTAL)"
depends on (!SMP || PM_SLEEP_SMP)
+ depends on !CPU_V7M
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot