From 9163003236a52fd1a8ee6ca8a04f7232d001fc98 Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Wed, 5 Dec 2012 15:06:01 +0100 Subject: [PATCH] s390/pci: enable NEED_DMA_MAP_STATE The DMA API allows to avoid DMA unmaps because they are NOPs on some plattforms. But not on s390, so force them. Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky --- arch/s390/Kconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index f39a6f5..7ea06be 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -479,6 +479,9 @@ config NEED_SG_DMA_LENGTH config HAVE_DMA_ATTRS def_bool PCI +config NEED_DMA_MAP_STATE + def_bool PCI + config CHSC_SCH def_tristate m prompt "Support for CHSC subchannels" -- 2.7.4