From: Jakub Kicinski <kuba@kernel•org>
To: "Jason A. Donenfeld" <Jason@zx2c4•com>
Cc: linux-kernel@vger•kernel.org, patches@lists•linux.dev,
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Subject: Re: [PATCH v6 0/7] treewide cleanup of random integer usage
Date: Tue, 11 Oct 2022 16:01:44 -0700 [thread overview]
Message-ID: <20221011160144.1c0dc2af@kernel.org> (raw)
In-Reply-To: <20221010230613.1076905-1-Jason@zx2c4.com>
On Mon, 10 Oct 2022 17:06:06 -0600 Jason A. Donenfeld wrote:
> - If you want a secure or an insecure random u64, use get_random_u64().
> - If you want a secure or an insecure random u32, use get_random_u32().
> * The old function prandom_u32() has been deprecated for a while now
> and is just a wrapper around get_random_u32(). Same for
> get_random_int().
> - If you want a secure or an insecure random u16, use get_random_u16().
> - If you want a secure or an insecure random u8, use get_random_u8().
> - If you want secure or insecure random bytes, use get_random_bytes().
> * The old function prandom_bytes() has been deprecated for a while now
> and has long been a wrapper around get_random_bytes().
> - If you want a non-uniform random u32, u16, or u8 bounded by a certain
> open interval maximum, use prandom_u32_max().
> * I say "non-uniform", because it doesn't do any rejection sampling or
> divisions. Hence, it stays within the prandom_* namespace.
Acked-by: Jakub Kicinski <kuba@kernel•org>
next prev parent reply other threads:[~2022-10-11 23:02 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-10 23:06 [PATCH v6 0/7] treewide cleanup of random integer usage Jason A. Donenfeld
2022-10-10 23:06 ` [PATCH v6 1/7] treewide: use prandom_u32_max() when possible, part 1 Jason A. Donenfeld
2022-10-11 9:58 ` Heiko Carstens
2022-10-10 23:06 ` [PATCH v6 2/7] treewide: use prandom_u32_max() when possible, part 2 Jason A. Donenfeld
2022-10-10 23:06 ` [PATCH v6 3/7] treewide: use get_random_{u8,u16}() when possible, part 1 Jason A. Donenfeld
2022-10-11 1:18 ` Elliott, Robert (Servers)
2022-10-11 3:00 ` Jason A. Donenfeld
2022-10-10 23:06 ` [PATCH v6 4/7] treewide: use get_random_{u8,u16}() when possible, part 2 Jason A. Donenfeld
2022-10-11 9:59 ` Heiko Carstens
2022-10-10 23:06 ` [PATCH v6 5/7] treewide: use get_random_u32() when possible Jason A. Donenfeld
2022-10-11 9:14 ` Rolf Eike Beer
2022-10-11 19:20 ` Jason A. Donenfeld
2022-10-11 10:00 ` Heiko Carstens
2022-10-13 9:25 ` Rolf Eike Beer
2022-10-13 10:16 ` Florian Westphal
2022-10-13 11:40 ` Rolf Eike Beer
2022-10-13 16:21 ` Jason A. Donenfeld
2022-10-10 23:06 ` [PATCH v6 6/7] treewide: use get_random_bytes() " Jason A. Donenfeld
2022-10-10 23:06 ` [PATCH v6 7/7] prandom: remove unused functions Jason A. Donenfeld
2022-10-11 23:01 ` Jakub Kicinski [this message]
2022-10-17 11:59 ` [PATCH v6 0/7] treewide cleanup of random integer usage liulongfang
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