IB/core: Make ib_addr a core IB module

IP based addressing introduces the usage of rdma_addr_find_dmac_by_grh()
within ib_core.  Since this function is declared in ib_addr, ib_addr
should be a part of the core INFINIBAND modules, rather than
INFINIBAND_ADDR_TRANS.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

drivers/infiniband/Kconfig

@@ -3,6 +3,8 @@ menuconfig INFINIBAND
 	depends on PCI || BROKEN
 	depends on HAS_IOMEM
 	depends on NET
+	depends on INET
+	depends on m || IPV6 != m
 	---help---
 	  Core support for InfiniBand (IB).  Make sure to also select
 	  any protocols you wish to use as well as drivers for your
@@ -38,8 +40,7 @@ config INFINIBAND_USER_MEM
 
 config INFINIBAND_ADDR_TRANS
 	bool
-	depends on INET
-	depends on !(INFINIBAND = y && IPV6 = m)
+	depends on INFINIBAND
 	default y
 
 source "drivers/infiniband/hw/mthca/Kconfig"

drivers/infiniband/core/Makefile

@@ -1,8 +1,9 @@
-infiniband-$(CONFIG_INFINIBAND_ADDR_TRANS)	:= ib_addr.o rdma_cm.o
+infiniband-$(CONFIG_INFINIBAND_ADDR_TRANS)	:= rdma_cm.o
 user_access-$(CONFIG_INFINIBAND_ADDR_TRANS)	:= rdma_ucm.o
 
 obj-$(CONFIG_INFINIBAND) +=		ib_core.o ib_mad.o ib_sa.o \
-					ib_cm.o iw_cm.o $(infiniband-y)
+					ib_cm.o iw_cm.o ib_addr.o \
+					$(infiniband-y)
 obj-$(CONFIG_INFINIBAND_USER_MAD) +=	ib_umad.o
 obj-$(CONFIG_INFINIBAND_USER_ACCESS) +=	ib_uverbs.o ib_ucm.o \
 					$(user_access-y)