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| author | Tom Herbert <tom@herbertland.com> | 2015-12-14 11:19:44 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-12-15 16:50:20 -0500 |
| commit | c8cd0989bd151fda87bbf10887b3df18021284bc (patch) | |
| tree | 714a0169000dfa3c7456e69b58da887159b71586 /net/core/dev.c | |
| parent | a188222b6ed29404ac2d4232d35d1fe0e77af370 (diff) | |
| download | linux-c8cd0989bd151fda87bbf10887b3df18021284bc.tar.gz linux-c8cd0989bd151fda87bbf10887b3df18021284bc.tar.bz2 linux-c8cd0989bd151fda87bbf10887b3df18021284bc.zip | |
net: Eliminate NETIF_F_GEN_CSUM and NETIF_F_V[46]_CSUM
These netif flags are unnecessary convolutions. It is more
straightforward to just use NETIF_F_HW_CSUM, NETIF_F_IP_CSUM,
and NETIF_F_IPV6_CSUM directly.
This patch also:
- Cleans up can_checksum_protocol
- Simplifies netdev_intersect_features
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 5a3b5a404642..45b013f27625 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6467,9 +6467,9 @@ static netdev_features_t netdev_fix_features(struct net_device *dev, /* UFO needs SG and checksumming */ if (features & NETIF_F_UFO) { /* maybe split UFO into V4 and V6? */ - if (!((features & NETIF_F_GEN_CSUM) || - (features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)) - == (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) { + if (!(features & NETIF_F_HW_CSUM) && + ((features & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)) != + (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM))) { netdev_dbg(dev, "Dropping NETIF_F_UFO since no checksum offload features.\n"); features &= ~NETIF_F_UFO; @@ -7571,7 +7571,7 @@ static int dev_cpu_callback(struct notifier_block *nfb, netdev_features_t netdev_increment_features(netdev_features_t all, netdev_features_t one, netdev_features_t mask) { - if (mask & NETIF_F_GEN_CSUM) + if (mask & NETIF_F_HW_CSUM) mask |= NETIF_F_CSUM_MASK; mask |= NETIF_F_VLAN_CHALLENGED; @@ -7579,8 +7579,8 @@ netdev_features_t netdev_increment_features(netdev_features_t all, all &= one | ~NETIF_F_ALL_FOR_ALL; /* If one device supports hw checksumming, set for all. */ - if (all & NETIF_F_GEN_CSUM) - all &= ~(NETIF_F_CSUM_MASK & ~NETIF_F_GEN_CSUM); + if (all & NETIF_F_HW_CSUM) + all &= ~(NETIF_F_CSUM_MASK & ~NETIF_F_HW_CSUM); return all; } |