diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2012-02-25 00:03:10 +0000 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2012-02-25 00:10:22 +0000 |
| commit | ff3bc1e7527504a93710535611b2f812f3bb89bf (patch) | |
| tree | 4fb3a0f723e71280315de1a9d2ab15e4cdb6fb66 /drivers | |
| parent | 3d7474734b220ccbf9997ea484d0bcd4f7ab8549 (diff) | |
| download | lwn-ff3bc1e7527504a93710535611b2f812f3bb89bf.tar.gz lwn-ff3bc1e7527504a93710535611b2f812f3bb89bf.zip | |
sfc: Fix assignment of ip_summed for pre-allocated skbs
When pre-allocating skbs for received packets, we set ip_summed =
CHECKSUM_UNNCESSARY. We used to change it back to CHECKSUM_NONE when
the received packet had an incorrect checksum or unhandled protocol.
Commit bc8acf2c8c3e43fcc192762a9f964b3e9a17748b ('drivers/net: avoid
some skb->ip_summed initializations') mistakenly replaced the latter
assignment with a DEBUG-only assertion that ip_summed ==
CHECKSUM_NONE. This assertion is always false, but it seems no-one
has exercised this code path in a DEBUG build.
Fix this by moving our assignment of CHECKSUM_UNNECESSARY into
efx_rx_packet_gro().
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/sfc/rx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c index aca349861767..fc52fca74193 100644 --- a/drivers/net/ethernet/sfc/rx.c +++ b/drivers/net/ethernet/sfc/rx.c @@ -156,11 +156,10 @@ static int efx_init_rx_buffers_skb(struct efx_rx_queue *rx_queue) if (unlikely(!skb)) return -ENOMEM; - /* Adjust the SKB for padding and checksum */ + /* Adjust the SKB for padding */ skb_reserve(skb, NET_IP_ALIGN); rx_buf->len = skb_len - NET_IP_ALIGN; rx_buf->is_page = false; - skb->ip_summed = CHECKSUM_UNNECESSARY; rx_buf->dma_addr = pci_map_single(efx->pci_dev, skb->data, rx_buf->len, @@ -496,6 +495,7 @@ static void efx_rx_packet_gro(struct efx_channel *channel, EFX_BUG_ON_PARANOID(!checksummed); rx_buf->u.skb = NULL; + skb->ip_summed = CHECKSUM_UNNECESSARY; gro_result = napi_gro_receive(napi, skb); } |