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Date:   Fri, 26 Aug 2022 14:57:18 +0200
From:   Alexander Gordeev <agordeev@linux.ibm.com>
To:     Ian Rogers <irogers@google.com>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jiri Olsa <jolsa@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        James Clark <james.clark@arm.com>,
        Kees Cook <keescook@chromium.org>,
        "Gustavo A. R. Silva" <gustavoars@kernel.org>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Riccardo Mancini <rickyman7@gmail.com>,
        German Gomez <german.gomez@arm.com>,
        Colin Ian King <colin.king@intel.com>,
        Song Liu <songliubraving@fb.com>,
        Dave Marchevsky <davemarchevsky@fb.com>,
        Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
        Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>,
        Leo Yan <leo.yan@linaro.org>, linux-perf-users@vger.kernel.org,
        linux-kernel@vger.kernel.org, Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH v2 4/6] perf cpumap: Fix alignment for masks in event
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 <20220614143353.1559597-5-irogers@google.com>
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On Tue, Jun 14, 2022 at 07:33:51AM -0700, Ian Rogers wrote:

Hi Ian,

Although it is committed, still have a question.

> index e7758707cadd..d2d32589758a 100644
> --- a/tools/lib/perf/include/perf/event.h
> +++ b/tools/lib/perf/include/perf/event.h
> @@ -6,6 +6,7 @@
>  #include <linux/types.h>
>  #include <linux/limits.h>
>  #include <linux/bpf.h>
> +#include <linux/compiler.h>

Is it correct approach to include it into user-exposed headers?
AFAICT headers_install.sh strips #include <linux/compiler.h> and
compiler*.h itself do not get installed with make headers_install.

[...]

> +struct __packed perf_record_cpu_map_data {

And it is only needed to pull __packed macro, right?

Thanks!