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

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:

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From: Brian Haley haleyb.dev@gmail.com

[ 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!