linux-kernel - Re: objtool warning breaks build for fs/dlm/lock.o

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Message-ID: <20200508161750.bl5c7wh36gh6gcvp@treble>
Date:   Fri, 8 May 2020 11:17:50 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: objtool warning breaks build for fs/dlm/lock.o

On Fri, May 08, 2020 at 11:55:09AM +0200, Peter Zijlstra wrote:
> On Fri, May 08, 2020 at 11:27:39AM +0200, Arnd Bergmann wrote:
> 
> > Right, makes sense. It would be nice though to have a way of intentionally
> > turning all objtool warnings into errors. I do my randconfig tests
> > with '-Werror'
> > at the moment in order to catch all new warnings, but this does not catch
> > objtool errors at the moment. For now, this is probably the right thing to do,
> > as there are a couple of warnings that I have no patches for, but at some point
> > I would prefer to trap immediately when a new warning pops up.
> 
> Completely untested, and I'm 100% unsure of the Makefile change, but
> something like so, then?

Mostly looks good, but it only errors out on fatal errors, right?  For
-Werror (and what Arnd is asking about) should it also return error on
"warnings > 0"?

-- 
Josh