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| author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2015-11-17 15:49:06 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-11-17 15:25:45 -0500 |
| commit | 17b85d29e82cc3c874a497a8bc5764d6a2b043e2 (patch) | |
| tree | 7234f1e9f3a38dff362a6efc9f775757ad9c5849 | |
| parent | a3a116e04cc6a94d595ead4e956ab1bc1d2f4746 (diff) | |
| download | linux-17b85d29e82cc3c874a497a8bc5764d6a2b043e2.tar.bz2 | |
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 <mirq-linux@rere.qmqm.pl>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/dev.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 5dbc86ea6b58..ae00b894e675 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6436,7 +6436,10 @@ int __netdev_update_features(struct net_device *dev) netdev_err(dev, "set_features() failed (%d); wanted %pNF, left %pNF\n", err, &features, &dev->features); - return 0; + /* return non-0 since some features might have changed and + * it's better to fire a spurious notification than miss it + */ + return -1; } sync_lower: |