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authorVincenzo Frascino <vincenzo.frascino@arm.com>2020-01-10 13:37:59 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2020-01-25 18:18:28 +0000
commit76950f7162cad51d2200ebd22c620c14af38f718 (patch)
tree200647e903a4d1a5c2f5a660d1f22e24a64eafe9
parent31f3010e60522ede237fb145a63b4af5a41718c2 (diff)
ARM: 8951/1: Fix Kexec compilation issue.
To perform the reserve_crashkernel() operation kexec uses SECTION_SIZE to find a memblock in a range. SECTION_SIZE is not defined for nommu systems. Trying to compile kexec in these conditions results in a build error: linux/arch/arm/kernel/setup.c: In function ‘reserve_crashkernel’: linux/arch/arm/kernel/setup.c:1016:25: error: ‘SECTION_SIZE’ undeclared (first use in this function); did you mean ‘SECTIONS_WIDTH’? crash_size, SECTION_SIZE); ^~~~~~~~~~~~ SECTIONS_WIDTH linux/arch/arm/kernel/setup.c:1016:25: note: each undeclared identifier is reported only once for each function it appears in linux/scripts/Makefile.build:265: recipe for target 'arch/arm/kernel/setup.o' failed Make KEXEC depend on MMU to fix the compilation issue. Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
-rw-r--r--arch/arm/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ba75e3661a41..bc99582bdc85 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1904,7 +1904,7 @@ config XIP_DEFLATED_DATA
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