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-rw-r--r--mm/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index db7c55de92c..50f7cfc15b7 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -139,6 +139,10 @@ config SPLIT_PTLOCK_CPUS
default "4096" if PARISC && !PA20
default "4"
+config ZONE_DMA
+ def_bool y
+ depends on GENERIC_ISA_DMA
+
#
# support for page migration
#