[PATCH 4.19 17/39] RDMA/rxe: Fix missing kconfig dependency on CRYPTO

[gregkh]

From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

From: Julian Braha <julianbraha@xxxxxxxxx>

[ Upstream commit 475f23b8c66d2892ad6acbf90ed757cafab13de7 ]

When RDMA_RXE is enabled and CRYPTO is disabled, Kbuild gives the
following warning:

 WARNING: unmet direct dependencies detected for CRYPTO_CRC32
   Depends on [n]: CRYPTO [=n]
   Selected by [y]:
   - RDMA_RXE [=y] && (INFINIBAND_USER_ACCESS [=y] || !INFINIBAND_USER_ACCESS [=y]) && INET [=y] && PCI [=y] && INFINIBAND [=y] && INFINIBAND_VIRT_DMA [=y]

This is because RDMA_RXE selects CRYPTO_CRC32, without depending on or
selecting CRYPTO, despite that config option being subordinate to CRYPTO.

Fixes: cee2688e3cd6 ("IB/rxe: Offload CRC calculation when possible")
Signed-off-by: Julian Braha <julianbraha@xxxxxxxxx>
Link: https://lore.kernel.org/r/21525878.NYvzQUHefP@ubuntu-mate-laptop
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/infiniband/sw/rxe/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/sw/rxe/Kconfig b/drivers/infiniband/sw/rxe/Kconfig
index 67ae960ab523..1fa19a77583e 100644
--- a/drivers/infiniband/sw/rxe/Kconfig
+++ b/drivers/infiniband/sw/rxe/Kconfig
@@ -3,6 +3,7 @@ config RDMA_RXE
 	depends on INET && PCI && INFINIBAND
 	depends on !64BIT || ARCH_DMA_ADDR_T_64BIT
 	select NET_UDP_TUNNEL
+	select CRYPTO
 	select CRYPTO_CRC32
 	select DMA_VIRT_OPS
 	---help---
-- 
2.30.1