RDMA/rxe: Fix missing kconfig dependency on CRYPTO

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@gmail.com>
Link: https://lore.kernel.org/r/21525878.NYvzQUHefP@ubuntu-mate-laptop
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/sw/rxe/Kconfig b/drivers/infiniband/sw/rxe/Kconfig
index 4521490..06b8dc5 100644 (file)
--- a/drivers/infiniband/sw/rxe/Kconfig
+++ b/drivers/infiniband/sw/rxe/Kconfig
@@ -4,6 +4,7 @@ config RDMA_RXE
        depends on INET && PCI && INFINIBAND
        depends on INFINIBAND_VIRT_DMA
        select NET_UDP_TUNNEL
+       select CRYPTO
        select CRYPTO_CRC32
        help
        This driver implements the InfiniBand RDMA transport over