[PATCH] power/fadump: make FA_DUMP select CRASH_DUMP

[Baoquan He]

FA_DUMP which is similar with kdump needs vmcoreinfo exporting,
crashkernel reservation and /proc/vmcore file . After refactoring crash
related codes and Kconfig items, make FA_DUMP select CRASH_DUMP. Now
the dependency layout is like below:

                           ---->VMCORE_INFO
                         /|
FA_DUMP--> CRASH_DUMP-->/-|---->CRASH_RESERVE
                        \ |
                          \---->PROC_VMCORE

Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
---
 arch/powerpc/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index f182fb354bef..d5d4c890f010 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -695,8 +695,7 @@ config ARCH_SELECTS_CRASH_DUMP
 config FA_DUMP
 	bool "Firmware-assisted dump"
 	depends on PPC64 && (PPC_RTAS || PPC_POWERNV)
-	select VMCORE_INFO
-	select CRASH_RESERVE
+	select CRASH_DUMP
 	help
 	  A robust mechanism to get reliable kernel crash dump with
 	  assistance from firmware. This approach does not use kexec,
-- 
2.41.0


> 
> > Hope Hari and Pingfan can help have a look, see if
> > it's doable. Now, I make it either have both kexec and crash enabled, or
> > disable both of them altogether.
> 
> 
> Sure. I will take a closer look...

Thanks a lot. Please feel free to post patches to make that, or I can do
it with your support or suggestion.