Re: [PATCH] selftests net: fix bpf build error

[Daniel Borkmann]

On 5/30/22 8:21 AM, Lina Wang wrote:
> bpf_helpers.h has been moved to tools/lib/bpf since 5.10, so add more
> incliding path.
>
> Fixes: edae34a3ed92 ("selftests net: add UDP GRO fraglist + bpf self-tests")
> Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
> Signed-off-by: Lina Wang <lina.wang@xxxxxxxxxxxx>
> ---
>   tools/testing/selftests/net/bpf/Makefile | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/tools/testing/selftests/net/bpf/Makefile b/tools/testing/selftests/net/bpf/Makefile
> index f91bf14bbee7..070251986dbe 100644
> --- a/tools/testing/selftests/net/bpf/Makefile
> +++ b/tools/testing/selftests/net/bpf/Makefile
> @@ -2,6 +2,7 @@
>   
>   CLANG ?= clang
>   CCINCLUDE += -I../../bpf
> +CCINCLUDE += -I../../../../lib
>   CCINCLUDE += -I../../../../../usr/include/
>   
>   TEST_CUSTOM_PROGS = $(OUTPUT)/bpf/nat6to4.o

From building the selftest in general, I'm getting:

clang -O2 -target bpf -c bpf/nat6to4.c -I../../bpf -I../../../../lib -I../../../../../usr/include/ -o /root/daniel/bpf/tools/testing/selftests/net/bpf/nat6to4.o
In file included from bpf/nat6to4.c:27:
In file included from /usr/include/linux/bpf.h:11:
/usr/include/linux/types.h:5:10: fatal error: 'asm/types.h' file not found
#include <asm/types.h>
         ^~~~~~~~~~~~~
1 error generated.

Could we reuse the build infra from tools/testing/selftests/bpf/ for nat6to4.c?