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Subject[PATCH -next] rdma/siw: Add missing dependencies on LIBCRC32C and DMA_VIRT_OPS
If LIBCRC32C and DMA_VIRT_OPS are not enabled:

drivers/infiniband/sw/siw/siw_main.o: In function `siw_newlink':
siw_main.c:(.text+0x35c): undefined reference to `dma_virt_ops'
drivers/infiniband/sw/siw/siw_qp_rx.o: In function `siw_csum_update':
siw_qp_rx.c:(.text+0x16): undefined reference to `crc32c'

Fix the first issue by adding a select of DMA_VIRT_OPS.
Fix the second issue by replacing the unneeded dependency on
CRYPTO_CRC32 by a dependency on LIBCRC32C.

Reported-by: (first issue)
Fixes: c0cf5bdde46c664d ("rdma/siw: addition to kernel build environment")
Signed-off-by: Geert Uytterhoeven <>
drivers/infiniband/sw/siw/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/siw/Kconfig b/drivers/infiniband/sw/siw/Kconfig
index 94f684174ce3556e..b622fc62f2cd6d46 100644
--- a/drivers/infiniband/sw/siw/Kconfig
+++ b/drivers/infiniband/sw/siw/Kconfig
@@ -1,6 +1,7 @@
config RDMA_SIW
tristate "Software RDMA over TCP/IP (iWARP) driver"
- depends on INET && INFINIBAND && CRYPTO_CRC32
+ depends on INET && INFINIBAND && LIBCRC32C
+ select DMA_VIRT_OPS
This driver implements the iWARP RDMA transport over
the Linux TCP/IP network stack. It enables a system with a
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