linux-kernel - Re: [PATCH 2/3] bpf: Remove dead variable

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Date:   Mon, 16 Oct 2017 20:59:33 +0200
From:   Richard Weinberger <richard@....at>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        ast@...nel.org
Subject: Re: [PATCH 2/3] bpf: Remove dead variable

Am Montag, 16. Oktober 2017, 20:54:36 CEST schrieb Daniel Borkmann:
> On 10/16/2017 08:18 PM, Richard Weinberger wrote:
> > task is never used in bpf_get_current_uid_gid(), kill it.
> > 
> > Signed-off-by: Richard Weinberger <richard@....at>
> > ---
> > 
> >   kernel/bpf/helpers.c | 1 -
> >   1 file changed, 1 deletion(-)
> > 
> > diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
> > index e8845adcd15e..511c9d522cfc 100644
> > --- a/kernel/bpf/helpers.c
> > +++ b/kernel/bpf/helpers.c
> > @@ -131,7 +131,6 @@ const struct bpf_func_proto
> > bpf_get_current_pid_tgid_proto = {> 
> >   BPF_CALL_0(bpf_get_current_uid_gid)
> >   {
> > 
> > -	struct task_struct *task = current;
> > 
> >   	kuid_t uid;
> >   	kgid_t gid;
> 
> Needs to be squashed into patch 1/3?

I can squash it into 1/3, I kept it that way because
even without 1/3 this variable is unused.

Thanks,
//richard