Re: [PATCH bpf-next] bpf: hide the unused 'off' variable

From: Song Liu
Date: Tue May 29 2018 - 14:18:37 EST


On Tue, May 29, 2018 at 8:53 AM, John Fastabend
<john.fastabend@xxxxxxxxx> wrote:
> On 05/29/2018 03:35 AM, Arnd Bergmann wrote:
>> On Tue, May 29, 2018 at 4:40 AM, YueHaibing <yuehaibing@xxxxxxxxxx> wrote:
>>> The local variable is only used while CONFIG_IPV6 enabled
>>>
>>> net/core/filter.c: In function âsk_msg_convert_ctx_accessâ:
>>> net/core/filter.c:6489:6: warning: unused variable âoffâ [-Wunused-variable]
>>> int off;
>>> ^
>>> This puts it into #ifdef.
>>>
>>> Fixes: 303def35f64e ("bpf: allow sk_msg programs to read sock fields")
>>> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
>>
>> I was about to send the same patch and found you had already sent one.
>>
>> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
>>
>
> Thanks! I'm curious why kbuild bot didn't catch this. Will
> try to dig into that in a bit.
>
> Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>

Acked-by: Song Liu <songliubraving@xxxxxx>