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Commit 66c68bcc authored by Ben Hutchings's avatar Ben Hutchings Committed by David S. Miller
Browse files

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: default avatarBen Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org [2.6.32+]
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent af1905db

net/core/dev.c

+3 −3
Original line number Diff line number Diff line
@@ -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)));