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authorHerbert Xu <herbert@gondor.apana.org.au>2008-10-23 01:11:29 -0700
committerDavid S. Miller <davem@davemloft.net>2008-10-23 01:11:29 -0700
commitb63365a2d60268a3988285d6c3c6003d7066f93a (patch)
tree85bd8f91f3de954c697aa44544b4adf191e7f5aa /net/ipv4
parent2e3f92dad6bdbee796274bae5c1c50a6ddd31cbb (diff)
net: Fix disjunct computation of netdev features
My change commit e2a6b85247aacc52d6ba0d9b37a99b8d1a3e0d83 net: Enable TSO if supported by at least one device didn't do what was intended because the netdev_compute_features function was designed for conjunctions. So what happened was that it would simply take the TSO status of the last constituent device. This patch extends it to support both conjunctions and disjunctions under the new name of netdev_increment_features. It also adds a new function netdev_fix_features which does the sanity checking that usually occurs upon registration. This ensures that the computation doesn't result in an illegal combination since this checking is absent when the change is initiated via ethtool. The two users of netdev_compute_features have been converted. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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