From c5923c011cd546f8e2400f44bbad2b3afc72f535 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 18 Jun 2017 02:36:32 +0100
Subject: [PATCH] net: add kfree_skb_list()

Extracted from upstream commit bd8a7036c06c "gre: fix a possible skb leak".

This patch adds a kfree_skb_list() helper.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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