[PATCH bpf-next] bpf: Fix bpf_prog_test_run_tracing for !CONFIG_NET

[Alexei Starovoitov]

On Thu, Mar 05, 2020 at 11:01:27PM +0100, KP Singh wrote:
> From: KP Singh <kpsingh at google.com>
> 
> test_run.o is not built when CONFIG_NET is not set and
> bpf_prog_test_run_tracing being referenced in bpf_trace.o causes the
> linker error:
> 
> ld: kernel/trace/bpf_trace.o:(.rodata+0x38): undefined reference to
>  `bpf_prog_test_run_tracing'
> 
> Add a __weak function in bpf_trace.c to handle this.
> 
> Fixes: da00d2f117a0 ("bpf: Add test ops for BPF_PROG_TYPE_TRACING")
> Signed-off-by: KP Singh <kpsingh at google.com>

Applied. Thanks