[PATCH] drivers: infiniband: sw: rxe: fix kconfig dependency on CRYPTO

[Julian Braha]

commit 6e61907779ba99af785f5b2397a84077c289888a
Author: Julian Braha <julianbraha@xxxxxxxxx>
Date:   Fri Feb 19 18:20:57 2021 -0500

    drivers: infiniband: sw: rxe: fix 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.
    
    Signed-off-by: Julian Braha <julianbraha@xxxxxxxxx>

diff --git a/drivers/infiniband/sw/rxe/Kconfig b/drivers/infiniband/sw/rxe/Kconfig
index 452149066792..06b8dc5093f7 100644
--- 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