Steps to reproduce this for v5.9-rc4 on x86 machine (using make.cross [1] to cross compile for arm64): 1. make.cross ARCH=arm64 allnoconfig 2. make.cross ARCH=arm64 menuconfig a. Enable NET b. Enable INET c. Enable PCI d. Enable INFINIBAND e. Enable RDMA_RXE 3. make.cross ARCH=arm64 olddefconfig # WARNING: unmet direct dependencies detected for CRYPTO_CRC32 [1] https://github.com/fengguang/lkp-tests/blob/master/sbin/make.cross Thanks Necip On Tue, Sep 15, 2020 at 2:23 PM Jason Gunthorpe <jgg@xxxxxxxxxx> wrote: > > On Tue, Sep 15, 2020 at 01:16:00PM +0300, Necip Fazil Yildiran wrote: > > When RDMA_RXE is enabled and CRYPTO is disabled, it results in the > > following Kbuild 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] && (!64BIT || ARCH_DMA_ADDR_T_64BIT [=n]) > > ?? how did you get here? I thought the kconfig front ends were > supposed to prevent this. > > Jason
