linux-kernel - [PATCH v1 06/21] loongarch/kexec: refactor for kernel/Kconfig.kexec

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Message-Id: <20230612172805.681179-7-eric.devolder@oracle.com>
Date:   Mon, 12 Jun 2023 13:27:58 -0400
From:   Eric DeVolder <eric.devolder@...cle.com>
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Subject: [PATCH v1 06/21] loongarch/kexec: refactor for kernel/Kconfig.kexec

The kexec and crash kernel options are provided in the common
kernel/Kconfig.kexec. Utilize the common options and provide
the ARCH_HAS_ and ARCH_SUPPORTS_ entries to recreate the
equivalent set of KEXEC and CRASH options.

Signed-off-by: Eric DeVolder <eric.devolder@...cle.com>
---
 arch/loongarch/Kconfig | 26 +++++++-------------------
 1 file changed, 7 insertions(+), 19 deletions(-)

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index d38b066fc931..e836d3310060 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -481,28 +481,16 @@ config ARCH_STRICT_ALIGN
 	  to run kernel only on systems with h/w unaligned access support in
 	  order to optimise for performance.
 
-config KEXEC
-	bool "Kexec system call"
-	select KEXEC_CORE
-	help
-	  kexec is a system call that implements the ability to shutdown your
-	  current kernel, and to start another kernel.  It is like a reboot
-	  but it is independent of the system firmware.   And like a reboot
-	  you can start any kernel with it, not just Linux.
+config ARCH_HAS_KEXEC
+	def_bool y
 
-	  The name comes from the similarity to the exec system call.
+config ARCH_HAS_CRASH_DUMP
+	def_bool y
 
-config CRASH_DUMP
-	bool "Build kdump crash kernel"
+config ARCH_SUPPORTS_CRASH_DUMP
+	def_bool y
+	depends on CRASH_DUMP
 	select RELOCATABLE
-	help
-	  Generate crash dump after being started by kexec. This should
-	  be normally only set in special crash dump kernels which are
-	  loaded in the main kernel with kexec-tools into a specially
-	  reserved region and then later executed after a crash by
-	  kdump/kexec.
-
-	  For more details see Documentation/admin-guide/kdump/kdump.rst
 
 config RELOCATABLE
 	bool "Relocatable kernel"
-- 
2.31.1