korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-16 16:54:20 +08:00
Code Issues Packages Projects Releases Wiki Activity

sfc: Fix assignment of ip_summed for pre-allocated skbs

Browse Source 
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 bc8acf2c8c ('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>
This commit is contained in:
Ben Hutchings 2012-02-25 00:03:10 +00:00
parent 3d7474734b
commit ff3bc1e752
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/sfc/rx.c
View File

@ -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);
}