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udp: fix gso_segs calculations

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[ Upstream commit 44b321e502 ]

Commit dfec0ee22c ("udp: Record gso_segs when supporting UDP segmentation offload")
added gso_segs calculation, but incorrectly got sizeof() the pointer and
not the underlying data type. In addition let's fix the v6 case.

Fixes: bec1f6f697 ("udp: generate gso with UDP_SEGMENT")
Fixes: dfec0ee22c ("udp: Record gso_segs when supporting UDP segmentation offload")
Signed-off-by: Josh Hunt <johunt@akamai.com>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Josh Hunt 2019-10-02 13:29:22 -04:00 committed by Greg Kroah-Hartman
parent 79fd59ae7c
commit 544aee5461
2 changed files with 3 additions and 1 deletions
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2
net/ipv4/udp.c
View file

@ -810,7 +810,7 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4,
skb_shinfo(skb)->gso_size = cork->gso_size;
skb_shinfo(skb)->gso_type = SKB_GSO_UDP_L4;
skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(len - sizeof(uh),
skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(len - sizeof(*uh),
cork->gso_size);
goto csum_partial;
}

2
net/ipv6/udp.c
View file

@ -1081,6 +1081,8 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6,
skb_shinfo(skb)->gso_size = cork->gso_size;
skb_shinfo(skb)->gso_type = SKB_GSO_UDP_L4;
skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(len - sizeof(*uh),
cork->gso_size);
goto csum_partial;
}