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 <ben@xxxxxxxxxxxxxxx> --- drivers/infiniband/sw/rdmavt/Kconfig | 2 +- drivers/infiniband/sw/rxe/Kconfig | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/sw/rdmavt/Kconfig b/drivers/infiniband/sw/rdmavt/Kconfig index 2b5513da7e83..98e798007f75 100644 --- 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--- diff --git a/drivers/infiniband/sw/rxe/Kconfig b/drivers/infiniband/sw/rxe/Kconfig index bad4a576d7cf..67ae960ab523 100644 --- 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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