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authorSantiago Leon <santil@us.ibm.com>2008-08-20 13:09:19 -0600
committerJeff Garzik <jgarzik@redhat.com>2008-08-27 05:36:57 -0400
commit45e15bb734e4e559ab32f26196e44d5cf1417f10 (patch)
treee71322bc295822ad97af55b0298668eab093cfec /drivers/net/smc91x.c
parentc213f286f2cf6590f83f541f66a625ee8d20c6f4 (diff)
ibmveth: fix bad UDP checksums
This patch fixes a ibmveth bug where bad UDP checksums are being transmitted when checksum offloading is enabled. The hypervisor does checksum offloading only on TCP packets, so ibmveth calls skb_checksum_help() for any other protocol. The bug happens because the packet is being modified after the DMA map, so we would need a memory barrier before making the hypervisor call. Reordering the code so that the DMA map happens after skb_checksum_help() has the additional advantage of fixing a DMA map leak if skb_checksum_help() where to fail. Signed-off-by: Santiago Leon <santil@us.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/smc91x.c')
0 files changed, 0 insertions, 0 deletions