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| author | Michael Ellerman <michael@ellerman.id.au> | 2013-10-28 04:00:35 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-30 05:00:44 (GMT) |
| commit | 90890b1ef568a54547ef0490a7c15d7357b98bc9 (patch) | |
| tree | 35a6bb60e71c9c44d6158d3ed810440c173f446e /arch/powerpc/Kconfig | |
| parent | b83941798c35f9cffba36927011df2b53c3884d8 (diff) | |
| download | linux-90890b1ef568a54547ef0490a7c15d7357b98bc9.tar.xz | |
powerpc: FA_DUMP depends on KEXEC
If you try and build the FA_DUMP code with CONFIG_KEXEC=n, you see
errors such as the following:
arch/powerpc/kernel/fadump.c
408:2: error: 'crashing_cpu' undeclared (first use in this function)
410:2: error: implicit declaration of function 'crash_save_vmcoreinfo'
513:22: error: storage size of 'prstatus' isn't known
520:2: error: implicit declaration of function 'elf_core_copy_kernel_regs'
521:36: error: 'KEXEC_CORE_NOTE_NAME' undeclared (first use in this function)
624:49: error: 'note_buf_t' undeclared (first use in this function)
872:2: error: implicit declaration of function 'paddr_vmcoreinfo_note'
874:18: error: 'vmcoreinfo_max_size' undeclared (first use in this function)
This is because although FA_DUMP doesn't use kexec as the actual reboot
mechanism, it does use parts of the kexec code to assemble/disassemble
the crash image.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 5f15468..de5c61d 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -407,7 +407,7 @@ config CRASH_DUMP config FA_DUMP bool "Firmware-assisted dump" - depends on PPC64 && PPC_RTAS && CRASH_DUMP + depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC help A robust mechanism to get reliable kernel crash dump with assistance from firmware. This approach does not use kexec, |