kernel: remove linux 3.10 support

[openwrt/svn-archive/archive.git] / target / linux / generic / patches-3.10 / 656-skb_reduce_truesize-helper.patch

diff --git a/target/linux/generic/patches-3.10/656-skb_reduce_truesize-helper.patch b/target/linux/generic/patches-3.10/656-skb_reduce_truesize-helper.patch
deleted file mode 100644 (file)
index 0a20f6b..0000000
--- a/target/linux/generic/patches-3.10/656-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
-@@ -1894,6 +1894,24 @@ 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