On Tue, Dec 06, 2022 at 11:49:56AM -0800, Jakub Kicinski wrote:
On Tue, 6 Dec 2022 04:49:12 -0500 Sasha Levin wrote:
From: Rasmus Villemoes linux@rasmusvillemoes.dk
[ Upstream commit 31d929de5a112ee1b977a89c57de74710894bbbf ]
When the name_assign_type attribute was introduced (commit 685343fc3ba6, "net: add name_assign_type netdev attribute"), the loopback device was explicitly mentioned as one which would make use of NET_NAME_PREDICTABLE:
The name_assign_type attribute gives hints where the interface name of a given net-device comes from. These values are currently defined:... NET_NAME_PREDICTABLE: The ifname has been assigned by the kernel in a predictable way that is guaranteed to avoid reuse and always be the same for a given device. Examples include statically created devices like the loopback device [...]
Switch to that so that reading /sys/class/net/lo/name_assign_type produces something sensible instead of returning -EINVAL.
Yeah... we should have applied it to -next, I think backporting it is a good idea but I wish it had more time in the -next tree since it's a "uAPI alignment" :(
Oh, well, very unlikely it will break anything, tho, so let's do it.
Want me to push it back a week to the next batch? It'll give it two weeks instead of the usual week.