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Message-ID: <20150402154739.GA11974@gmail.com>
Date: Thu, 2 Apr 2015 17:47:39 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Alexei Starovoitov <ast@...mgrid.com>
Cc: davem@...emloft.net, hpa@...or.com, acme@...hat.com,
acme@...radead.org, torvalds@...ux-foundation.org,
rostedt@...dmis.org, akpm@...ux-foundation.org,
a.p.zijlstra@...llo.nl, linux-kernel@...r.kernel.org,
peterz@...radead.org, jolsa@...hat.com, daniel@...earbox.net,
masami.hiramatsu.pt@...achi.com, tglx@...utronix.de,
namhyung@...nel.org, linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perf/core] bpf: Fix the build on BPF_SYSCALL= y &&
!CONFIG_TRACING kernels, make it more configurable
* Alexei Starovoitov <ast@...mgrid.com> wrote:
> On 4/2/2015 7:30 AM, tip-bot for Ingo Molnar wrote:
> >Committer: Ingo Molnar <mingo@...nel.org>
> >CommitDate: Thu, 2 Apr 2015 16:28:06 +0200
> >
> >bpf: Fix the build on BPF_SYSCALL=y && !CONFIG_TRACING kernels, make it more configurable
>
> Thanks for the fix.
> I've tried this combination and it was fine, since whole kernel/trace/
> directory is not compiled when !CONFIG_TRACING, but I missed the fact
> that CONFIG_RING_BUFFER=y also enables kernel/trace/ which this ia64
> .config exploited :( I'll add it to my set of configs.
I saw this on x86 as well, but yeah, it was a rare thing.
Thanks,
Ingo
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