linux-kernel - Re: [PATCH 1/2] perf annotate: Fix build with NO

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Message-ID: <20130227012207.GC5819@concordia>
Date:	Wed, 27 Feb 2013 12:22:07 +1100
From:	Michael Ellerman <michael@...erman.id.au>
To:	li guang <lig.fnst@...fujitsu.com>
Cc:	Namhyung Kim <namhyung@...nel.org>, acme@...radead.org,
	linux-kernel@...r.kernel.org, feng.tang@...el.com,
	namhyung.kim@....com
Subject: Re: [PATCH 1/2] perf annotate: Fix build with NO_NEWT=1

On Wed, Feb 27, 2013 at 09:14:28AM +0800, li guang wrote:
> 在 2013-02-26二的 18:02 +0900，Namhyung Kim写道：
> > Hi Michael,
> > 
> > On Tue, 26 Feb 2013 16:02:02 +1100, Michael Ellerman wrote:
> > > Commit 18c9e5c "Make it to be able to skip unannotatable symbols" broke
> > > the build with NO_NEWT=1:
> > >
> > >    CC builtin-annotate.o
> > > builtin-annotate.c: In function 'hists__find_annotations':
> > > builtin-annotate.c:161:4: error: duplicate case value
> > > builtin-annotate.c:154:4: error: previously used here
> > > make: *** [builtin-annotate.o] Error 1
> > >
> > > This is because without NEWT support K_LEFT is #defined to -1 in
> > > utils/hist.h
> > >
> > > Fix it by shifting the K_LEFT/K_RIGHT #defines out of the likely range
> > > of error values.
> > 
> > Argh, didn't check NO_NEWT build on this, sorry.
> > 
> > The hist_entry__tui_annotate() - hence, symbol__tui_annotate() - returns
> > either key code or error code.  This is not good IMHO but not sure it's
> > worth refactoring.  Maybe we can move the error check to under default
> > case so that possible future error checks to be done?
> 
> or can we skip gui-code-snippet when there's no gui library?
> anyway, for present fix-up, we can just temporarily change K_LEFT value
> like Michael's or my patch, I think.

Sorry I didn't see your patch, but yes I agree, either is fine and fixes
the build for now.

cheers
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