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sfc: Fix reading of inserted hash

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The hash appears immediately before the packet data, not at the
beginning of the buffer. This means we can easily use negative offsets
from the start of packet data, so adjust the data and length at the
top of __efx_rx_packet() instead of wherever we consume the hash.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2010-06-25 07:05:33 +00:00
committed by David S. Miller
parent 29046f9b1e
commit 604f6049ba
2 changed files with 6 additions and 8 deletions
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3
drivers/net/sfc/selftest.c
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@@ -258,9 +258,6 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
payload = &state->payload;
buf_ptr += efx->type->rx_buffer_hash_size;
pkt_len -= efx->type->rx_buffer_hash_size;
received = (struct efx_loopback_payload *) buf_ptr;
received->ip.saddr = payload->ip.saddr;
if (state->offload_csum)