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-rw-r--r--net/ipv4/ip_output.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 3e98ed2bff5..5e12dca7b3d 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -598,6 +598,7 @@ slow_path:
/* for offloaded checksums cleanup checksum before fragmentation */
if ((skb->ip_summed == CHECKSUM_PARTIAL) && skb_checksum_help(skb))
goto fail;
+ iph = ip_hdr(skb);
left = skb->len - hlen; /* Space per frame */
ptr = hlen; /* Where to start from */