From 551199aca1c3102ebed390566d681cc1290284ca Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Fri, 20 Jan 2017 13:04:07 -0800
Subject: lib/dma-virt: Add dma_virt_ops

Several RDMA drivers (hfi1, qib and rxe) expect that ib_sge.addr
is a virtual address. Provide DMA mapping operations that are
suitable for these drivers.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
---
 lib/Kconfig | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'lib/Kconfig')

diff --git a/lib/Kconfig b/lib/Kconfig
index b6baf0609e8b..97af23b26f33 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -400,6 +400,11 @@ config DMA_NOOP_OPS
 	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
 	default n
 
+config DMA_VIRT_OPS
+	bool
+	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
+	default n
+
 config CHECK_SIGNATURE
 	bool
 
-- 
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