linux-kernel - s390 unistd.h & perf

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Date:   Fri, 2 Feb 2018 13:23:22 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>
Cc:     Thomas Richter <tmricht@...ux.vnet.ibm.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Jiri Olsa <jolsa@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: s390 unistd.h & perf

Hi Hendrik,

	I noticed, after fast forwarding my perf/urgent branch to
torvalds/master, that this appears in my perf build:

Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/unistd.h' differs from latest version at 'arch/s390/include/uapi/asm/unistd.h'

	Looking at the log for that file I noticed this cset:

4381f9f12e79 ("s390/syscalls: use generated syscall_table.h and unistd.h header files")

	Can you please take a look how this affects the syscall table
generation process in tools/perf and how can we proceed to silence that
warning, i.e. to update the copy we have in tools/?

Thanks,

- Arnaldo