linux-kernel - [PATCH 3/3] m68knommu: fix 68000 CPU link with no platform selected

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Message-Id: <20220518065639.2432213-4-gerg@linux-m68k.org>
Date:   Wed, 18 May 2022 16:56:39 +1000
From:   Greg Ungerer <gerg@...ux-m68k.org>
To:     linux-m68k@...r.kernel.org
Cc:     geert@...ux-m68k.org, linux-kernel@...r.kernel.org, arnd@...db.de,
        Greg Ungerer <gerg@...ux-m68k.org>
Subject: [PATCH 3/3] m68knommu: fix 68000 CPU link with no platform selected

If building for a nommu m68k classic CPU and no platform (board) is
selected then the final link fails with:

     LD      vmlinux.o
   m68k-linux-ld: cannot find arch/m68k/kernel/head.o: No such file or directory
   make: *** [Makefile:1158: vmlinux] Error 1

Not selecting a platform is ok, that is a generic 68000 system build.
All of the platform selections are for 68328 variants.

The underlying problem is that the CPU config option (CONFIG_M68000)
ends up not being set, it is currently only selected by one of the
platform choices.

Change CONFIG_M68000 so that it is always enabled for the nommu m68k
classic configuration.

Signed-off-by: Greg Ungerer <gerg@...ux-m68k.org>
---
 arch/m68k/Kconfig.cpu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index 16ea9a67723c..ed719a855e6a 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -37,7 +37,7 @@ endchoice
 if M68KCLASSIC

 config M68000
-	bool
+	def_bool y
 	depends on !MMU
 	select CPU_HAS_NO_BITFIELDS
 	select CPU_HAS_NO_CAS
-- 
2.25.1