Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero

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To: "Maciej W. Rozycki" <macro@xxxxxxxxxxx>
Subject: Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
From: "Jason A. Donenfeld" <Jason@xxxxxxxxx>
Date: Sun, 24 Apr 2022 10:15:00 +0200
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Linux Crypto Mailing List <linux-crypto@xxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, "Theodore Ts'o" <tytso@xxxxxxx>, Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, "David S . Miller" <davem@xxxxxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>, Johannes Berg <johannes@xxxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, "H . Peter Anvin" <hpa@xxxxxxxxx>, Chris Zankel <chris@xxxxxxxxxx>, Max Filippov <jcmvbkbc@xxxxxxxxx>, John Stultz <john.stultz@xxxxxxxxxx>, Stephen Boyd <sboyd@xxxxxxxxxx>, Dinh Nguyen <dinguyen@xxxxxxxxxx>, linux-arm-kernel <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, linux-m68k <linux-m68k@xxxxxxxxxxxxxxx>, "open list:BROADCOM NVRAM DRIVER" <linux-mips@xxxxxxxxxxxxxxx>, linux-riscv <linux-riscv@xxxxxxxxxxxxxxxxxxx>, sparclinux@xxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, X86 ML <x86@xxxxxxxxxx>, linux-xtensa@xxxxxxxxxxxxxxxx
In-reply-to: <alpine.DEB.2.21.2204220029590.9383@angie.orcam.me.uk>
References: <20220413115411.21489-1-Jason@zx2c4.com> <20220413115411.21489-5-Jason@zx2c4.com> <20220413122546.GA11860@alpha.franken.de> <alpine.DEB.2.21.2204131331450.9383@angie.orcam.me.uk> <CAHmME9pQ4xdeTUDxAdrOu=S9NRTonYzJVk50fa0Zfz4knZt5WA@mail.gmail.com> <alpine.DEB.2.21.2204140014580.9383@angie.orcam.me.uk> <YlfoeGRM6w2O+eXA@zx2c4.com> <alpine.DEB.2.21.2204142349180.9383@angie.orcam.me.uk> <20220418071005.GA4075@alpha.franken.de> <alpine.DEB.2.21.2204220029590.9383@angie.orcam.me.uk>

On Sun, Apr 24, 2022 at 12:33:44AM +0100, Maciej W. Rozycki wrote:
> unconditionally.  I think this discovery asks for code optimisation, which 
> I'll try to cook up sometime.

At some point too, by the way, we might also consider putting that into
a .c file rather than a static inline in the .h, since that function is
starting to get sort of big.

Jason

Follow-Ups:
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Maciej W. Rozycki

References:
- [PATCH v4 00/11] archs/random: fallback to best raw ktime when no cycle counter
  - From: Jason A. Donenfeld
- [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Jason A. Donenfeld
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Thomas Bogendoerfer
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Maciej W. Rozycki
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Jason A. Donenfeld
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Maciej W. Rozycki
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Jason A. Donenfeld
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Maciej W. Rozycki
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Thomas Bogendoerfer
- Re: [PATCH v4 04/11] mips: use fallback for random_get_entropy() instead of zero
  - From: Maciej W. Rozycki

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