Merge branch 'virtio' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux...

[linux-drm-fsl-dcu.git] / net / tipc / core.c

diff --git a/net/tipc/core.c b/net/tipc/core.c
index 4e84c8431f32632a65ca743ee043cd4e742d3421..69646811798542cb29b37e66dd424679464a30a9 100644 (file)
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -49,8 +49,6 @@
 #include "config.h"
 
 
-#define TIPC_MOD_VER "2.0.0"
-
 #ifndef CONFIG_TIPC_ZONES
 #define CONFIG_TIPC_ZONES 3
 #endif
@@ -103,6 +101,30 @@ int tipc_get_mode(void)
        return tipc_mode;
 }
 
+/**
+ * buf_acquire - creates a TIPC message buffer
+ * @size: message size (including TIPC header)
+ *
+ * Returns a new buffer with data pointers set to the specified size.
+ *
+ * NOTE: Headroom is reserved to allow prepending of a data link header.
+ *       There may also be unrequested tailroom present at the buffer's end.
+ */
+
+struct sk_buff *buf_acquire(u32 size)
+{
+       struct sk_buff *skb;
+       unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u;
+
+       skb = alloc_skb_fclone(buf_size, GFP_ATOMIC);
+       if (skb) {
+               skb_reserve(skb, BUF_HEADROOM);
+               skb_put(skb, size);
+               skb->next = NULL;
+       }
+       return skb;
+}
+
 /**
  * tipc_core_stop_net - shut down TIPC networking sub-systems
  */