diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2010-10-22 04:38:26 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-10-27 11:37:29 -0700 |
| commit | 66c68bcc489fadd4f5e8839e966e3a366e50d1d5 (patch) | |
| tree | 3491719cf7988e7ef11735ed64223a5fb386f2c6 | |
| parent | af1905dbec44445d75851996819ac2203670bd0f (diff) | |
| download | lwn-66c68bcc489fadd4f5e8839e966e3a366e50d1d5.tar.gz lwn-66c68bcc489fadd4f5e8839e966e3a366e50d1d5.zip | |
net: NETIF_F_HW_CSUM does not imply FCoE CRC offload
NETIF_F_HW_CSUM indicates the ability to update an TCP/IP-style 16-bit
checksum with the checksum of an arbitrary part of the packet data,
whereas the FCoE CRC is something entirely different.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org [2.6.32+]
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/dev.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 3c5fbfbb3181..35dfb8318483 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1685,10 +1685,10 @@ EXPORT_SYMBOL(netif_device_attach); static bool can_checksum_protocol(unsigned long features, __be16 protocol) { - return ((features & NETIF_F_GEN_CSUM) || - ((features & NETIF_F_IP_CSUM) && + return ((features & NETIF_F_NO_CSUM) || + ((features & NETIF_F_V4_CSUM) && protocol == htons(ETH_P_IP)) || - ((features & NETIF_F_IPV6_CSUM) && + ((features & NETIF_F_V6_CSUM) && protocol == htons(ETH_P_IPV6)) || ((features & NETIF_F_FCOE_CRC) && protocol == htons(ETH_P_FCOE))); |