linux-kernel - [PATCH 2/5] m68k, kexec: fix the incorrect ifdeffery and build dependency of CONFIG

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Date:   Fri,  8 Dec 2023 15:30:33 +0800
From:   Baoquan He <bhe@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-next@...r.kernel.org, loongarch@...ts.linux.dev,
        linux-m68k@...ts.linux-m68k.org, linux-mips@...r.kernel.org,
        linux-sh@...r.kernel.org, x86@...nel.org,
        akpm@...ux-foundation.org, eric_devolder@...oo.com,
        sfr@...b.auug.org.au, ignat@...udflare.com,
        Baoquan He <bhe@...hat.com>
Subject: [PATCH 2/5] m68k, kexec: fix the incorrect ifdeffery and build dependency of CONFIG_KEXEC

The select of KEXEC for CRASH_DUMP in kernel/Kconfig.kexec will be
dropped, then compiling errors will be triggered if below config
items are set:

===
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_CRASH_DUMP=y
===

Here, change the dependency of buinding machine_kexec.o relocate_kernel.o
and the ifdeffery in asm/kexe.h to CONFIG_KEXEC_CORE.

Signed-off-by: Baoquan He <bhe@...hat.com>
---
 arch/m68k/include/asm/kexec.h | 4 ++--
 arch/m68k/kernel/Makefile     | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/m68k/include/asm/kexec.h b/arch/m68k/include/asm/kexec.h
index f5a8b2defa4b..3b0b64f0a353 100644
--- a/arch/m68k/include/asm/kexec.h
+++ b/arch/m68k/include/asm/kexec.h
@@ -2,7 +2,7 @@
 #ifndef _ASM_M68K_KEXEC_H
 #define _ASM_M68K_KEXEC_H
 
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
 
 /* Maximum physical address we can use pages from */
 #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
@@ -25,6 +25,6 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
 
 #endif /* __ASSEMBLY__ */
 
-#endif /* CONFIG_KEXEC */
+#endif /* CONFIG_KEXEC_CORE */
 
 #endif /* _ASM_M68K_KEXEC_H */
diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile
index 01fb69a5095f..f335bf3268a1 100644
--- a/arch/m68k/kernel/Makefile
+++ b/arch/m68k/kernel/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_PCI) += pcibios.o
 
 obj-$(CONFIG_M68K_NONCOHERENT_DMA) += dma.o
 
-obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
+obj-$(CONFIG_KEXEC_CORE)	+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_BOOTINFO_PROC)	+= bootinfo_proc.o
 obj-$(CONFIG_UBOOT)		+= uboot.o
 
-- 
2.41.0