4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <b...@decadent.org.uk>

[ Upstream commit e02637e97d68a54b1527bc654bf8377eda310226 ]

DMA_VIRT_OPS requires that dma_addr_t is at least as wide as a
pointer, which is expressed as a dependency on !64BIT ||
ARCH_DMA_ADDR_T_64BIT.

For parisc64 this is not true, and if these IB modules are enabled,
kconfig warns:

WARNING: unmet direct dependencies detected for DMA_VIRT_OPS
  Depends on [n]: HAS_DMA [=y] && (!64BIT [=y] || ARCH_DMA_ADDR_T_64BIT)
  Selected by [m]:
  - INFINIBAND_RDMAVT [=m] && INFINIBAND [=m] && 64BIT [=y] && PCI [=y]
  - RDMA_RXE [=m] && INET [=y] && PCI [=y] && INFINIBAND [=m]

Add dependencies to fix this.

Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
Signed-off-by: Doug Ledford <dledf...@redhat.com>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/infiniband/sw/rdmavt/Kconfig |    2 +-
 drivers/infiniband/sw/rxe/Kconfig    |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/sw/rdmavt/Kconfig
+++ b/drivers/infiniband/sw/rdmavt/Kconfig
@@ -1,6 +1,6 @@
 config INFINIBAND_RDMAVT
        tristate "RDMA verbs transport library"
-       depends on 64BIT
+       depends on 64BIT && ARCH_DMA_ADDR_T_64BIT
        depends on PCI
        select DMA_VIRT_OPS
        ---help---
--- a/drivers/infiniband/sw/rxe/Kconfig
+++ b/drivers/infiniband/sw/rxe/Kconfig
@@ -1,6 +1,7 @@
 config RDMA_RXE
        tristate "Software RDMA over Ethernet (RoCE) driver"
        depends on INET && PCI && INFINIBAND
+       depends on !64BIT || ARCH_DMA_ADDR_T_64BIT
        select NET_UDP_TUNNEL
        select CRYPTO_CRC32
        select DMA_VIRT_OPS


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