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staging: zcache: fix Kconfig crypto dependency

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ZCACHE is a boolean in the Kconfig.  When selected, it
should require that CRYPTO be builtin (=y).

Currently, ZCACHE=y and CRYPTO=m is a valid configuration
when it should not be.

This patch changes the zcache Kconfig to enforce this
dependency.

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Seth Jennings 2012-04-23 20:33:50 -05:00 committed by Greg Kroah-Hartman
parent a2cd62ec9a
commit 349ae79c0a
1 changed files with 1 additions and 1 deletions
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drivers/staging/zcache/Kconfig
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@ -2,7 +2,7 @@ config ZCACHE
bool "Dynamic compression of swap pages and clean pagecache pages"
# X86 dependency is because zsmalloc uses non-portable pte/tlb
# functions
depends on (CLEANCACHE || FRONTSWAP) && CRYPTO && X86
depends on (CLEANCACHE || FRONTSWAP) && CRYPTO=y && X86
select ZSMALLOC
select CRYPTO_LZO
default n