** Description changed:
- This upstream patch is missing: 26d31925cd5e ("tun: implement carrier
- change").
+ === SRU Justification ===
+ [Impact]
+ Userspace cannot change tun's carrier state.
+
+ [Fix]
+ Add .ndo_change_carrier callback for tun.
+
+ [Test]
+ User confirm the backport works.
+
+ [Regression Potential]
+ Low. It add a new function and a new case switch for ioctl, but the new
+ code doesn't affect existing behavior.
+ === Original Bug Report ===
+ This upstream patch is missing: 26d31925cd5e ("tun: implement carrier
change").
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-
next.git/commit/?id=26d31925cd5e
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https://bugs.launchpad.net/bugs/1806392
Title:
tun/tap: unable to manage carrier state from userland
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