net: macb: initialize checksum when using checksum offloading
I'm still struggling to get this fix right.. Changes since v2: - do not blindly modify SKB contents according to Dave's legitimate objection Changes since v1: - dropped disabling HW checksum offload for Zynq - initialize checksum similar to net/ethernet/freescale/fec_main.c -- >8 -- MACB/GEM needs the checksum field initialized to 0 to get correct results on transmit in all cases, e.g. on Zynq, UDP packets with payload <= 2 otherwise contain a wrong checksums. Signed-off-by: NHelmut Buchsbaum <helmut.buchsbaum@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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