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[RFC,v3,15/25] ARM: kexec: disallow kexec for NOMMU builds

Message ID 1480691143-19845-16-git-send-email-vladimir.murzin@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Vladimir Murzin Dec. 2, 2016, 3:05 p.m. UTC 
While building for NOMMU the following error shows up:

kernel/built-in.o: In function `kimage_free_entry':
memremap.c:(.text+0x4dafc): undefined reference to `arch_phys_to_idmap_offset'
memremap.c:(.text+0x4db04): undefined reference to `arch_phys_to_idmap_offset'
kernel/built-in.o: In function `kimage_alloc_page':
memremap.c:(.text+0x4dbc0): undefined reference to `arch_phys_to_idmap_offset'
memremap.c:(.text+0x4dbc8): undefined reference to `arch_phys_to_idmap_offset'
memremap.c:(.text+0x4dc1c): undefined reference to `arch_phys_to_idmap_offset'

That comes from Kexec, add dependency on MMU there.

Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
---
 arch/arm/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b5d529f..90c91de 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2019,7 +2019,7 @@  config XIP_PHYS_ADDR
 config KEXEC
 	bool "Kexec system call (EXPERIMENTAL)"
 	depends on (!SMP || PM_SLEEP_SMP)
-	depends on !CPU_V7M
+	depends on MMU
 	select KEXEC_CORE
 	help
 	  kexec is a system call that implements the ability to shutdown your