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skb_add_rx_frag() API is misleading. Network skbs built with this helper can use uncharged kernel memory and eventually stress/crash machine in OOM. Add a 'truesize' parameter and then fix drivers in followup patches. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>