linux-kernel - Re: [PATCH bpf-next 1/5] perf/core: Add PERF_FORMAT_LOST read

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Message-Id: <BX2DJJRW6PA5.3GUFKIRSVLU15@dlxu-fedora-R90QNFJV>
Date:   Tue, 17 Sep 2019 08:14:57 -0700
From:   "Daniel Xu" <dxu@...uu.xyz>
To:     "kbuild test robot" <lkp@...el.com>
Cc:     <kbuild-all@...org>, <bpf@...r.kernel.org>,
        <songliubraving@...com>, <yhs@...com>, <andriin@...com>,
        <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
        "Daniel Xu" <dxu@...uu.xyz>, <ast@...com>,
        <alexander.shishkin@...ux.intel.com>, <jolsa@...hat.com>,
        <namhyung@...nel.org>, <linux-kernel@...r.kernel.org>,
        <netdev@...r.kernel.org>, <kernel-team@...com>
Subject: Re: [PATCH bpf-next 1/5] perf/core: Add PERF_FORMAT_LOST
 read_format

On Tue Sep 17, 2019 at 10:32 PM kbuild test robot wrote:
> All errors (new ones prefixed by >>):
> 
>    kernel/events/core.c: In function 'perf_event_lost':
> >> kernel/events/core.c:4753:11: error: implicit declaration of function 'perf_kprobe_missed'; did you mean 'perf_release'? [-Werror=implicit-function-declaration]
>       lost += perf_kprobe_missed(event);
>               ^~~~~~~~~~~~~~~~~~
>               perf_release
>    cc1: some warnings being treated as errors
> 

Ah forgot the #ifdef for CONFIG_KPROBE_EVENTS. I've applied the fix and
will send it in the next version.