kernel: remove linux 3.18 support

No targets are using it anymore

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

1 files changed, 0 insertions, 41 deletions

diff --git a/target/linux/generic/pending-3.18/656-skb_reduce_truesize-helper.patch b/target/linux/generic/pending-3.18/656-skb_reduce_truesize-helper.patch
deleted file mode 100644
index 0fde9f6..0000000
--- a/target/linux/generic/pending-3.18/656-skb_reduce_truesize-helper.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-From 4593a806e31119c5bd3faa00c7210ad862d515af Mon Sep 17 00:00:00 2001
-From: Dave Taht <dave.taht@bufferbloat.net>
-Date: Mon, 31 Dec 2012 10:02:21 -0800
-Subject: [PATCH 3/7] skb_reduce_truesize: helper function for shrinking skbs
- whenever needed
-
-On embedded devices in particular, large queues of small packets from the rx
-path with a large truesize can exist. Reducing their size can reduce
-memory pressure. skb_reduce_truesize is a helper function for doing this,
-when needed.
----
- include/linux/skbuff.h |   18 ++++++++++++++++++
- 1 file changed, 18 insertions(+)
-
---- a/include/linux/skbuff.h
-+++ b/include/linux/skbuff.h
-@@ -2069,6 +2069,24 @@ static inline void pskb_trim_unique(stru
- 	BUG_ON(err);
- }
- 
-+/*
-+ * Caller wants to reduce memory needs before queueing skb
-+ * The (expensive) copy should not be be done in fast path.
-+ */
-+static inline struct sk_buff *skb_reduce_truesize(struct sk_buff *skb)
-+{
-+	if (skb->truesize > 2 * SKB_TRUESIZE(skb->len)) {
-+		struct sk_buff *nskb;
-+		nskb = skb_copy_expand(skb, skb_headroom(skb), 0,
-+			GFP_ATOMIC | __GFP_NOWARN);
-+		if (nskb) {
-+			__kfree_skb(skb);
-+			skb = nskb;
-+		}
-+	}
-+	return skb;
-+}
-+
- /**
-  *	skb_orphan - orphan a buffer
-  *	@skb: buffer to orphan