linux-kernel - Re: [PATCH 01/12] perf_events: add generic taken branch sampling support

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Message-ID: <1317920241.29658.14.camel@twins>
Date:	Thu, 06 Oct 2011 18:57:21 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, acme@...hat.com,
	ming.m.lin@...el.com, andi@...stfloor.org, robert.richter@....com,
	ravitillo@....gov
Subject: Re: [PATCH 01/12] perf_events: add generic taken branch sampling
 support

On Thu, 2011-10-06 at 16:49 +0200, Stephane Eranian wrote:
>  struct perf_branch_entry {
>         __u64                           from;
>         __u64                           to;
> +       struct {
> +               __u64                   mispred:1,  /* target mispredicted */
> +                                       predicted:1,/* target predicted */
> +                                       reserved:62;
> +       };
>  }; 

Why that anonymous structure?
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