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net_sched: fix mirrored packets checksum

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Similar to commit 9b368814b3 ("net: fix bridge multicast packet checksum validation")
we need to fixup the checksum for CHECKSUM_COMPLETE when
pushing skb on RX path. Otherwise we get similar splats.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
WANG Cong
2016-06-30 10:15:22 -07:00
committed by David S. Miller
parent eb70db8756
commit 82a31b9231
3 changed files with 20 additions and 19 deletions
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net/core/skbuff.c
-18
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@@ -3015,24 +3015,6 @@ int skb_append_pagefrags(struct sk_buff *skb, struct page *page,
}
EXPORT_SYMBOL_GPL(skb_append_pagefrags);
/**
* skb_push_rcsum - push skb and update receive checksum
* @skb: buffer to update
* @len: length of data pulled
*
* This function performs an skb_push on the packet and updates
* the CHECKSUM_COMPLETE checksum. It should be used on
* receive path processing instead of skb_push unless you know
* that the checksum difference is zero (e.g., a valid IP header)
* or you are setting ip_summed to CHECKSUM_NONE.
*/
static unsigned char *skb_push_rcsum(struct sk_buff *skb, unsigned len)
{
skb_push(skb, len);
skb_postpush_rcsum(skb, skb->data, len);
return skb->data;
}
/**
* skb_pull_rcsum - pull skb and update receive checksum
* @skb: buffer to update