Re: [PATCH net-next v2] ppp: add IFLA_PPP_UNIT netlink attribute
From: Jakub Kicinski <kuba@kernel.org>
Date: 2026-03-17 23:14:45
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On Sat, 14 Mar 2026 02:14:29 +0100 Martin Olivier wrote:
Currently, the PPP rtnetlink API allows creating a new network interface with a custom ifname, but it lacks the ability to specify a custom PPP unit id. Setting a specific unit id is currently only possible with the PPPIOCNEWUNIT ioctl. If a user-space program also requires a custom interface name, it must create the interface first with PPPIOCNEWUNIT and then rename it. Resolve this by introducing the IFLA_PPP_UNIT netlink attribute. This allows user-space programs to atomically request both a custom ifname and a specific PPP unit id during the RTM_NEWLINK creation process, eliminating the post-creation renaming for this use case.
Qingfang Deng, you work on PPP, could you review this patch, please?