linux-kernel - Re: [PATCH 1/2] perf intel-pt: Improve build messages for files that differ from the kernel

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Message-ID: <20171123184144.GM8789@kernel.org>
Date:   Thu, 23 Nov 2017 15:41:44 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] perf intel-pt: Improve build messages for files that
 differ from the kernel

Em Tue, Nov 21, 2017 at 09:41:11AM +0100, Ingo Molnar escreveu:
> * Adrian Hunter <adrian.hunter@...el.com> wrote:
> > +	((diff -B -I'^#include' util/intel-pt-decoder/inat_types.h ../../arch/x86/include/asm/inat_types.h >/dev/null) || \
> > +	(echo "Warning: Intel PT: x86 instruction decoder header at 'tools/perf/util/intel-pt-decoder/inat_types.h' differs from latest version at 'arch/x86/include/asm/inat_types.h'" >&2)))) || true
> >  	$(call rule_mkdir)
> >  	$(call if_changed_dep,cc_o_c)
> 
> Could we please factor this out into a helper, sharing more code with 
> tools/perf/check-headers.sh?

I'll do that at some point, applying the patch as the message got
improved.
 
> Also, I'd suggest removing this from check-headers.sh:
> 
>   opts="--ignore-blank-lines --ignore-space-change"

Done already.

- Arnaldo