* Q: loopback and /sys/class/net/*/operstate
@ 2019-12-12 14:05 Ulrich Windl
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From: Ulrich Windl @ 2019-12-12 14:05 UTC (permalink / raw)
To: netdev
Hi!
Seeing "state UNKNOWN" in output of "ip addr sh" for loopback, I noticed that /sys/class/net/lo/operstate contains "unknown".
To me it seems that /usr/src/linux/drivers/net/loopback.c does not set up operstate of struct net_device.
Seen in 4.12.14-95.37-default (SLES12 SP4). My personal guess is that the struct was enhanced, and it was forgotten to upgrade loopback.c.
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
Kind regards,
Ulrich
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2019-12-12 14:05 Q: loopback and /sys/class/net/*/operstate Ulrich Windl
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