linux-kernel - Re: [PATCH 14/15] static_call: Simple self-test module

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Message-ID: <20190611082931.GR3436@hirez.programming.kicks-ass.net>
Date:   Tue, 11 Jun 2019 10:29:31 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Andy Lutomirski <luto@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Jason Baron <jbaron@...mai.com>, Jiri Kosina <jkosina@...e.cz>,
        David Laight <David.Laight@...LAB.COM>,
        Borislav Petkov <bp@...en8.de>,
        Julia Cartwright <julia@...com>, Jessica Yu <jeyu@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>, Nadav Amit <namit@...are.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Edward Cree <ecree@...arflare.com>,
        Daniel Bristot de Oliveira <bristot@...hat.com>
Subject: Re: [PATCH 14/15] static_call: Simple self-test module

On Mon, Jun 10, 2019 at 12:24:28PM -0500, Josh Poimboeuf wrote:
> On Wed, Jun 05, 2019 at 03:08:07PM +0200, Peter Zijlstra wrote:
> > 
> > Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> > ---
> >  lib/Kconfig.debug      |    8 ++++++++
> >  lib/Makefile           |    1 +
> >  lib/test_static_call.c |   41 +++++++++++++++++++++++++++++++++++++++++
> >  3 files changed, 50 insertions(+)
> > 
> > --- a/lib/Kconfig.debug
> > +++ b/lib/Kconfig.debug
> > @@ -1955,6 +1955,14 @@ config TEST_STATIC_KEYS
> >  
> >  	  If unsure, say N.
> >  
> > +config TEST_STATIC_CALL
> > +	tristate "Test static call"
> > +	depends on m
> > +	help
> > +	  Test the static call interfaces.
> > +
> > +	  If unsure, say N.
> > +
> 
> Any reason why we wouldn't just make this a built-in boot time test?

None what so ever; but I did copy paste from the static_key stuff and
that has it for some rasin.