scatterlist: move the NEED_SG_DMA_LENGTH config symbol to lib/Kconfig

This way we have one central definition of it, and user can select it as
needed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 61f4e2e042aa..a0f1c4a8a093 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -49,6 +49,8 @@ config SUPERH
         select HAVE_ARCH_AUDITSYSCALL
         select HAVE_FUTEX_CMPXCHG if FUTEX
         select HAVE_NMI
+        select NEED_SG_DMA_LENGTH
+
         help
           The SuperH is a RISC processor targeted for use in embedded systems
           and consumer electronics; it was also used in the Sega Dreamcast
@@ -162,9 +164,6 @@ config DMA_NONCOHERENT
 config NEED_DMA_MAP_STATE
         def_bool DMA_NONCOHERENT
 
-config NEED_SG_DMA_LENGTH
-        def_bool y
-
 config PGTABLE_LEVELS
         default 3 if X2TLB
         default 2