Re: [PATCH AUTOSEL 6.2 31/53] neighbor: fix proxy_delay usage when it is zero

From: Sasha Levin
Date: Wed Mar 01 2023 - 09:13:42 EST


On Mon, Feb 27, 2023 at 10:15:04AM -0800, Jakub Kicinski wrote:
On Sun, 26 Feb 2023 09:44:23 -0500 Sasha Levin wrote:
From: Brian Haley <haleyb.dev@xxxxxxxxx>

[ Upstream commit 62e395f82d04510b0f86e5e603e29412be88596f ]

When set to zero, the neighbor sysctl proxy_delay value
does not cause an immediate reply for ARP/ND requests
as expected, it instead causes a random delay between
[0, U32_MAX). Looking at this comment from
__get_random_u32_below() explains the reason:

Potential behavior change, can we wait 4 weeks, until it's been
in a couple of -rcs?

Ack, will revisit this later. Thanks!

--
Thanks,
Sasha