Hi folks:

         Recently I am building ISO accroding to Building Guide stx.2019.05, But I encounter this error for the step building packages with mlnx_ofa_kernel-4.5, the log can be found in the building container :

         ./configure --build-dummy-mods --prefix=/usr --kernel-version 4.9.86-30.el7.x86_64 --kernel-sources /usr/src/kernels/4.9.86-30.el7.x86_64 --modules-dir /lib/modules/4.9.86-30.el7.x86_64/extra/mlnx-ofa_kernel --with-core-mod --with-user_mad-mod --with-user_access-mod --with-addr_trans-mod --with-mlx4-mod --with-mlx4_en-mod --with-mlx5-mod --with-mlxfw-mod --with-ipoib-mod -j2

make[1]: Entering directory `/usr/src/kernels/4.9.86-30.el7.x86_64'

  CC [M]  /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/net/sched/cls_flower.o

  CC [M]  /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/net/sched/act_tunnel_key.o

  CC [M]  /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/main.o

  CC [M]  /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/kthread.o

  CC [M]  /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/drivers/infiniband/core/packer.o

  CC [M]  /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/flow_dissector.o

BUILDSTDERR: /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/flow_dissector.c: In function '__skb_flow_dissect_tunnel_info':

BUILDSTDERR: /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/flow_dissector.c:205:2: warning: passing argument 1 of 'skb_tunnel_info' discards 'const' qualifier from pointer target type [enabled by default]

BUILDSTDERR:   info = skb_tunnel_info(skb);

BUILDSTDERR:   ^

BUILDSTDERR: In file included from /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/include/net/dst_metadata.h:5:0,

BUILDSTDERR:                  from /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/flow_dissector.c:34:

BUILDSTDERR: include/net/dst_metadata.h:25:38: note: expected 'struct sk_buff *' but argument is of type 'const struct sk_buff *'

BUILDSTDERR:  static inline struct ip_tunnel_info *skb_tunnel_info(struct sk_buff *skb)

BUILDSTDERR:                                       ^

BUILDSTDERR: /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/flow_dissector.c: In function 'backport___skb_flow_dissect':

BUILDSTDERR: /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/flow_dissector.c:607:11: error: dereferencing pointer to incomplete type

BUILDSTDERR:     if (ops->flow_dissect &&

BUILDSTDERR:            ^

BUILDSTDERR: /builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/flow_dissector.c:608:12: error: dereferencing pointer to incomplete type

BUILDSTDERR:         !ops->flow_dissect(skb, &proto, &offset)) {

BUILDSTDERR:             ^

BUILDSTDERR: make[3]: *** [/builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat/flow_dissector.o] Error 1

BUILDSTDERR: make[2]: *** [/builddir/build/BUILD/mlnx-ofa_kernel-4.5/obj/default/compat] Error 2

BUILDSTDERR: make[2]: *** Waiting for unfinished jobs....

Any help will be appreciated!