3.2.75-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Nikolay Aleksandrov <nikolay@xxxxxxxxxxxxxxxxxxx>
commit 00ee5927177792a6e139d50b6b7564d35705556a upstream.
If ndo_set_features fails __netdev_update_features() will return -1 but
this is wrong because it is expected to return 0 if no features were
changed (see netdev_update_features()), which will cause a netdev
notifier to be called without any actual changes. Fix this by returning
0 if ndo_set_features fails.
Fixes: 6cb6a27c45ce ("net: Call netdev_features_change() from netdev_update_features()")
CC: Michał Mirosław <mirq-linux@xxxxxxxxxxxx>
Signed-off-by: Nikolay Aleksandrov <nikolay@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
net/core/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5446,7 +5446,7 @@ int __netdev_update_features(struct net_
netdev_err(dev,
"set_features() failed (%d); wanted 0x%08x, left 0x%08x\n",
err, features, dev->features);
- return -1;
+ return 0;
}
if (!err)
--
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