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| author | Vincenzo Frascino <vincenzo.frascino@arm.com> | 2020-01-10 15:37:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-24 10:36:57 +0300 |
| commit | 2ccaac382af0a813019aff7fd4ec08694c65d73d (patch) | |
| tree | 4a1a26bd2314387d04905b6caae7fd0605e25380 /arch/arm/Kconfig | |
| parent | 16ec28640dc675ceafba2158930f7d4622a9fc1e (diff) | |
| download | linux-2ccaac382af0a813019aff7fd4ec08694c65d73d.tar.xz | |
ARM: 8951/1: Fix Kexec compilation issue.
[ Upstream commit 76950f7162cad51d2200ebd22c620c14af38f718 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 9fadf322a2b7..05c9bbfe444d 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1907,7 +1907,7 @@ 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 |