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Message-ID: <20170523074247.esnr4fj2squn4w2d@hirez.programming.kicks-ass.net>
Date:   Tue, 23 May 2017 09:42:47 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Alexei Starovoitov <ast@...com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Brendan Gregg <bgregg@...flix.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Teng Qin <qinteng@...com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH net-next 1/2] perf, bpf: add support for HW_CACHE and RAW
 events

On Mon, May 22, 2017 at 03:48:39PM -0700, Alexei Starovoitov wrote:
> From: Teng Qin <qinteng@...com>
> 
> This commit adds support for attach BPF program to RAW and HW_CACHE type
> events, and support for read HW_CACHE type event counters in BPF
> program. Existing code logic already supports them, so this commit is
> just update Enum value checks.

So what I'm missing is why they were not supported previously, and what
changed to allow it now.


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