[PATCH] arch/x86/kernel/setup_64.c compile error (MMOTM-2007-11-10-19-05)

[Erez Zadok]

I'm using -mm (MMOTM-2007-11-10-19-05) and getting

$ make
  CC      arch/x86/kernel/setup_64.o
arch/x86/kernel/setup_64.c: In function 'setup_arch':
arch/x86/kernel/setup_64.c:420: error: implicit declaration of function 'early_quirks'

That's because the externs for early_quirks() aren't on unless CONFIG_ACPI
is on, but the code in setup_64.c calls early_quirks() if CONFIG_PCI is on
(and early-quirks.c is compiled only if CONFIG_PCI=y).  I'm not sure if the
small fix below is correct, hence no signed-off-by.  But it seems to get the
kernel compiling and linking at least.  Someone should check.

Cheers,
Erez.


diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 5a09161..64644d4 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -416,7 +416,7 @@ void __init setup_arch(char **cmdline_p)
 	reserve_crashkernel();
 	paging_init();
 
-#ifdef CONFIG_PCI
+#if defined(CONFIG_PCI) && defined(CONFIG_ACPI)
 	early_quirks();
 #endif
 
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