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Date: Wed, 23 Oct 2019 10:48:35 +0000
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X-Bugzilla-Component: vhost/virtio
X-Bugzilla-Version: 19.05
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X-Bugzilla-Who: jan.kryl@mayadata.io
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Subject: [dpdk-dev] [Bug 356] Building dpdk with rte_vhost sometimes fails
 due to missing rte_hash.h
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https://bugs.dpdk.org/show_bug.cgi?id=3D356

            Bug ID: 356
           Summary: Building dpdk with rte_vhost sometimes fails due to
                    missing rte_hash.h
           Product: DPDK
           Version: 19.05
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: Normal
         Component: vhost/virtio
          Assignee: dev@dpdk.org
          Reporter: jan.kryl@mayadata.io
  Target Milestone: ---

This is because rte_vhost does not name rte_hash as its dependency in
lib/Makefile. Depending on -j and how knows what else the build either succ=
eeds
or fails and is nondeterministic.=20



> =3D=3D Build lib/librte_vhost
>  SYMLINK-FILE include/rte_vhost.h
>  SYMLINK-FILE include/rte_vdpa.h
>  SYMLINK-FILE include/rte_vhost_crypto.h
>  CC fd_man.o
>  CC iotlb.o
>  CC socket.o
>  CC vhost.o
>  CC vhost_user.o
>  CC virtio_net.o
>  CC vdpa.o
>  CC vhost_crypto.o
>
> /tmp/nix-build-libspdk.drv-0/source/dpdk/lib/librte_vhost/vhost_crypto.c:=
5:10:
> > fatal error: rte_hash.h: No such file or directory
> #include <rte_hash.h>
>          ^~~~~~~~~~~~
> compilation terminated.


The fix is simple. DEPDIRS for librte_vhost in lib/Makefile needs to explic=
itly
mention librte_hash:


> DEPDIRS-librte_vhost :=3D librte_eal librte_mempool librte_mbuf librte_et=
hdev \
>        librte_net librte_hash

--=20
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