Commit 91630032 authored Dec 05, 2012 by Jan Glauber Committed by Martin Schwidefsky Dec 05, 2012

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 <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent c59b9f92

arch/s390/Kconfig

+3 −0

Original line number	Diff line number	Diff line
		@@ -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"