linux-kernel - Re: linux-next: Tree for Aug 27 (objtool)

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Message-Id: <20190831001427.4781757c2028e142bafc5446@kernel.org>
Date:   Sat, 31 Aug 2019 00:14:27 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: Re: linux-next: Tree for Aug 27 (objtool)

On Fri, 30 Aug 2019 15:23:51 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> > Actually I wonder if X86_DECODER_SELFTEST is even still needed these
> > days, since objtool is enabled on default configs.  Objtool already uses
> > the decoder to disassemble every instruction in the kernel (except for a
> > few whitelisted files).
> 
> Sometimes it have found bugs, so I would like to keep it. That test runs
> build time and in-kernel decoder is somewhat critical. It is better to
> run a test before install it.

But yes, I think it may not need to run always anymore. So let's make it
disabled by default.

Thank you,

-- 
Masami Hiramatsu <mhiramat@...nel.org>