linux-kernel - Re: [PATCH v3 01/10] timekeeping: add raw clock fallback for random_get

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Message-ID: <CAHmME9pVhO24V8V3YdeHfz6q1nmSgqXocUtn=+zu5Wh-OWrSRA@mail.gmail.com>
Date:   Tue, 12 Apr 2022 23:17:03 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>, "Theodore Ts'o" <tytso@....edu>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        "David S . Miller" <davem@...emloft.net>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Johannes Berg <johannes@...solutions.net>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H . Peter Anvin" <hpa@...or.com>, Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        John Stultz <john.stultz@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Dinh Nguyen <dinguyen@...nel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        sparclinux@...r.kernel.org, linux-um@...ts.infradead.org,
        X86 ML <x86@...nel.org>, linux-xtensa@...ux-xtensa.org
Subject: Re: [PATCH v3 01/10] timekeeping: add raw clock fallback for random_get_entropy()

Hi Thomas,

On Tue, Apr 12, 2022 at 10:57 PM Thomas Gleixner <tglx@...utronix.de> wrote:
>
> On Tue, Apr 12 2022 at 19:27, Jason A. Donenfeld wrote:
> > +/**
> > + * random_get_entropy_fallback - Returns the raw clock source value,
> > + * used by random.c for platforms with no valid random_get_entropy().
> > + */
> > +unsigned long random_get_entropy_fallback(void)
> > +{
> > +     return tk_clock_read(&tk_core.timekeeper.tkr_mono);
> > +}
> > +EXPORT_SYMBOL(random_get_entropy_fallback);
>
> EXPORT_SYMBOL_GPL() please.

Okay, will do.

Jason