linux-kernel - Re: [PATCH] net, lib/once: Remove {net_}get_random_once

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Date:   Sun, 19 Jun 2022 15:42:47 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     wuchi <wuchi.zero@...il.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net, lib/once: Remove {net_}get_random_once_wait macro

On Sun, 19 Jun 2022 15:46:41 +0800 wuchi wrote:
> DO_ONCE(func, ...) will call func with spinlock which acquired by
> spin_lock_irqsave in __do_once_start. But the get_random_once_wait
> will sleep in get_random_bytes_wait -> wait_for_random_bytes.
> 
> Fortunately, there is no place to use {net_}get_random_once_wait,
> so we could remove them simply.
> 
> Signed-off-by: wuchi <wuchi.zero@...il.com>

Yeah, sure, if it builds:

Acked-by: Jakub Kicinski <kuba@...nel.org>

If Andrew doesn't pick it you please repost CCing netdev.