xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ipv4: generalize gre_handle_offloads

Browse Source 
This patch makes gre_handle_offloads() more generic
and rename it to iptunnel_handle_offloads()

This will be used to add GSO/TSO support to IPIP tunnels.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2013-10-19 11:42:55 -07:00
committed by David S. Miller
parent 030737bcc3
commit 2d26f0a3c0
4 changed files with 43 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
net/ipv4/gre_demux.c
View File

@@ -93,35 +93,6 @@ void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
}
EXPORT_SYMBOL_GPL(gre_build_header);
struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
{
int err;
if (likely(!skb->encapsulation)) {
skb_reset_inner_headers(skb);
skb->encapsulation = 1;
}
if (skb_is_gso(skb)) {
err = skb_unclone(skb, GFP_ATOMIC);
if (unlikely(err))
goto error;
skb_shinfo(skb)->gso_type |= SKB_GSO_GRE;
return skb;
} else if (skb->ip_summed == CHECKSUM_PARTIAL && gre_csum) {
err = skb_checksum_help(skb);
if (unlikely(err))
goto error;
} else if (skb->ip_summed != CHECKSUM_PARTIAL)
skb->ip_summed = CHECKSUM_NONE;
return skb;
error:
kfree_skb(skb);
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(gre_handle_offloads);
static __sum16 check_checksum(struct sk_buff *skb)
{
__sum16 csum = 0;