diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 3b4e9b8af044..e6dd1e5b8c32 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1116,8 +1116,8 @@ alloc_new_skb:
 				  !(rt->dst.dev->features & NETIF_F_SG)))
 				alloclen = fraglen;
 			else {
-				alloclen = fragheaderlen + transhdrlen;
-				pagedlen = datalen - transhdrlen;
+				alloclen = fragheaderlen + transhdrlen + fraggap;
+				pagedlen = datalen - transhdrlen - fraggap;
 			}
 
 			alloclen += alloc_extra;
@@ -1164,9 +1164,6 @@ alloc_new_skb:
 			}
 
 			copy = datalen - transhdrlen - fraggap - pagedlen;
-			/* [!] NOTE: copy will be negative if pagedlen>0
-			 * because then the equation reduces to -fraggap.
-			 */
 			if (copy > 0 &&
 			    INDIRECT_CALL_1(getfrag, ip_generic_getfrag,
 					    from, data + transhdrlen, offset,