netdev - Re: [PATCH net-next v2 10/11] net: protect NAPI config fields with netdev

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Message-ID: <20250115091548.46397-1-kuniyu@amazon.com>
Date: Wed, 15 Jan 2025 18:15:48 +0900
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: <kuba@...nel.org>
CC: <andrew+netdev@...n.ch>, <davem@...emloft.net>, <edumazet@...gle.com>,
	<horms@...nel.org>, <jdamato@...tly.com>, <netdev@...r.kernel.org>,
	<pabeni@...hat.com>, Kuniyuki Iwashima <kuniyu@...zon.com>
Subject: Re: [PATCH net-next v2 10/11] net: protect NAPI config fields with netdev_lock()

From: Jakub Kicinski <kuba@...nel.org>
Date: Tue, 14 Jan 2025 19:53:18 -0800
> Protect the following members of netdev and napi by netdev_lock:
>  - defer_hard_irqs,
>  - gro_flush_timeout,
>  - irq_suspend_timeout.
> 
> The first two are written via sysfs (which this patch switches
> to new lock), and netdev genl which holds both netdev and rtnl locks.
> 
> irq_suspend_timeout is only written by netdev genl.
> 
> Reviewed-by: Joe Damato <jdamato@...tly.com>
> Reviewed-by: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...zon.com>