net: rtnetlink: Don't export empty RTAX_FEATURES

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Since the features bit field has bits for internal only use as well, it
may happen that the kernel exports RTAX_FEATURES attribute with zero
value which is pointless.

Fix this by making sure the attribute is added only if the exported
value is non-zero.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Phil Sutter 2016-08-23 13:14:31 +02:00 • committed by David S. Miller

parent e7b48a32dc

commit f8edcd127b

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net/core/rtnetlink.c

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