As suggested by Ben Hutchings I made "carrier" attribute writeable.
With this patchset one can set carrier on/off on dummy. Might by also handy
to implement this for other devices.
Jiri Pirko (2):
net: allow to change carrier via sysfs
dummy: implement carrier change
drivers/net/dummy.c | 10 ++++++++++
include/linux/netdevice.h | 4 ++++
net/core/dev.c | 19 +++++++++++++++++++
net/core/net-sysfs.c | 26 +++++++++++++++++++++++++-
4 files changed, 58 insertions(+), 1 deletions(-)
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1.7.6