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[S390] fix sparsemem related compile error with allnoconfig on s390

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On s390 make allnoconfig fails with the following build error:

arch/s390/mm/init.c: In function 'show_mem':
arch/s390/mm/init.c:55: error: implicit declaration of function 'pfn_valid'
make[1]: *** [arch/s390/mm/init.o] Error 1
make: *** [arch/s390/mm] Error 2

This problem can by fixed ensuring that ARCH_SELECT_MEMORY_MODEL
is always turned on.

Signed-off-by: Hans-Joachim Picht <hans@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Hans-Joachim Picht 2008-05-30 10:03:24 +02:00 committed by Martin Schwidefsky
parent 916941b2bf
commit 97195d6b41
1 changed files with 3 additions and 0 deletions
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arch/s390/Kconfig
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@ -308,6 +308,9 @@ config ARCH_SPARSEMEM_ENABLE
config ARCH_SPARSEMEM_DEFAULT config ARCH_SPARSEMEM_DEFAULT
def_bool y def_bool y
config ARCH_SELECT_MEMORY_MODEL
def_bool y
source "mm/Kconfig" source "mm/Kconfig"
comment "I/O subsystem configuration" comment "I/O subsystem configuration"