linux-kernel - Re: s390 unistd.h & perf

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Date:   Mon, 5 Feb 2018 12:04:29 -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: Re: s390 unistd.h & perf

Em Mon, Feb 05, 2018 at 09:16:06AM +0100, Hendrik Brueckner escreveu:
> Hi Arnaldo,
> 
> On Fri, Feb 02, 2018 at 01:23:22PM -0300, Arnaldo Carvalho de Melo wrote:
> > 
> > 	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/?
> 
> I reworked the our system call table a bit to also have a text file containing
> the system calls.  For this, I also have an update for perf.  Will post these
> patches by end of this week.

Thanks,

- Arnaldo