netdev - Re: [PATCH 2/2] leds: trigger: netdev: refactor netdev_event_requires

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Message-ID: <556f0bb0-fd01-4e25-802e-7bbe98f0441f@lunn.ch>
Date: Thu, 12 Jun 2025 14:26:11 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Tobias Junghans <tobias.junghans@...ub.de>
Cc: Lee Jones <lee@...nel.org>, linux-leds@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH 2/2] leds: trigger: netdev: refactor
 netdev_event_requires_handling()

> Tomorrow i will look at the socket system calls and see how you get a
> processes network namespace.

current->nsproxy->net_ns gives the current processes network
namespace.

current is one of those historical odd things, like
jiffies. Originally it was a global variable, when the kernel
supported a single CPU, and hence only a single processes was ever
running. But with the change to SMP it became a #define for a function
call.

	Andrew