[NET]: make skb_release_data() static

skb_release_data() no longer has any users in other files.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/x86_64/kernel/functionlist b/arch/x86_64/kernel/functionlist
index 2bcebdc..01fa2358 100644
--- a/arch/x86_64/kernel/functionlist
+++ b/arch/x86_64/kernel/functionlist
@@ -384,7 +384,6 @@
 *(.text.__end_that_request_first)
 *(.text.wake_up_bit)
 *(.text.unuse_mm)
-*(.text.skb_release_data)
 *(.text.shrink_icache_memory)
 *(.text.sched_balance_self)
 *(.text.__pmd_alloc)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index e74c294..59918be9 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1304,7 +1304,6 @@
 extern void	       skb_split(struct sk_buff *skb,
 				 struct sk_buff *skb1, const u32 len);
 
-extern void	       skb_release_data(struct sk_buff *skb);
 extern struct sk_buff *skb_segment(struct sk_buff *skb, int features);
 
 static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index dfef9ee..a1c9ecf 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -272,7 +272,7 @@
 		skb_get(list);
 }
 
-void skb_release_data(struct sk_buff *skb)
+static void skb_release_data(struct sk_buff *skb)
 {
 	if (!skb->cloned ||
 	    !atomic_sub_return(skb->nohdr ? (1 << SKB_DATAREF_SHIFT) + 1 : 1,