net/core: revert "net: fix __netdev_update_features return.." and add comment
net/core: revert "net: fix __netdev_update_features return.." and add comment

This reverts commit 00ee59271777 ("net: fix __netdev_update_features return
on ndo_set_features failure")
and adds a comment explaining why it's okay to return a value other than
0 upon error. Some drivers might actually change flags and return an
error so it's better to fire a spurious notification rather than miss
these.

CC: Michał Mirosław <a6cdb63bb4a601d03a6f05cfd687541da1200a64@rere.qmqm.pl>
Signed-off-by: Nikolay Aleksandrov <262b42b771725e3ebec40395f2b058e593df7462@cumulusnetworks.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs