On 15/12/2022 11.59, Pavel Machek wrote: > Hi! > >> From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> >> >> [ 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. > > This was already part of the previous autosel: Yup, but it was punted for a week: https://lore.kernel.org/lkml/Y5AO7TrYsdeVqyI6@sashalap/
