linux-kernel - Re: arm64: pointer_auth.h:40:3: error: implicit declaration of function 'get_random_bytes'; did you mean 'get_random

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Message-ID: <20200731054602.GA16529@1wt.eu>
Date:   Fri, 31 Jul 2020 07:46:02 +0200
From:   Willy Tarreau <w@....eu>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Grygorii Strashko <grygorii.strashko@...com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        "Theodore Ts'o" <tytso@....edu>, Kees Cook <keescook@...omium.org>,
        Arnd Bergmann <arnd@...db.de>,
        Catalin Marinas <catalin.marinas@....com>,
        Mark Brown <broonie@...nel.org>,
        Richard Henderson <richard.henderson@...aro.org>,
        open list <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org, Emese Revfy <re.emese@...il.com>,
        hsinyi@...omium.org, Will Deacon <will@...nel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: arm64: pointer_auth.h:40:3: error: implicit declaration of
 function 'get_random_bytes'; did you mean 'get_random_once'?

On Thu, Jul 30, 2020 at 10:25:41PM -0700, Linus Torvalds wrote:
> On Thu, Jul 30, 2020 at 7:16 PM Willy Tarreau <w@....eu> wrote:
> >
> > Don't you want to take Mark's patch anyway in addition to all this ? In
> > case anyone meets yet another build issue, they'd have more luck trying
> > to revert any other patch. Right now if they revert one, it breaks the
> > build in a different way and doesn't help much.
> 
> I think Will picked up Mark's patch into the arm64 tree, so I felt I
> should let it come in eventually that way.

OK then!

> The immediate problems seem to have been resolved.
> 
> Knock wood.

Yes, that's my feeling as well. I'm going to resend you your patch
moving prandom32 definitions to prandom.h rebased on these latest
changes, add add a commit message. It would be nice for 5.9, but
maybe it could put an end to this mess once for all :-/

Willy