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| author | Josh Hunt <johunt@akamai.com> | 2019-10-02 13:29:22 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-07 19:01:50 +0200 |
| commit | 7cc748b229a3796fae59f8909601fbd7e26c2809 (patch) | |
| tree | 1b9c3e703f8d202a2de0473cb9a14043903d0793 | |
| parent | f19de0253a0d5d3e64ec46d4d5e50efc39fa9663 (diff) | |
| download | linux-stable-7cc748b229a3796fae59f8909601fbd7e26c2809.tar.gz linux-stable-7cc748b229a3796fae59f8909601fbd7e26c2809.tar.bz2 linux-stable-7cc748b229a3796fae59f8909601fbd7e26c2809.zip | |
udp: fix gso_segs calculations
[ Upstream commit 44b321e5020d782ad6e8ae8183f09b163be6e6e2 ]
Commit dfec0ee22c0a ("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: bec1f6f69736 ("udp: generate gso with UDP_SEGMENT")
Fixes: dfec0ee22c0a ("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>
| -rw-r--r-- | net/ipv4/udp.c | 2 | ||||
| -rw-r--r-- | net/ipv6/udp.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 16486c8b708b..3dda209f9e79 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -856,7 +856,7 @@ 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; } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 5995fdc99d3f..a23580d2af8c 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1143,6 +1143,8 @@ 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; } |