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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /include/net/netns/hash.h
Initial import
Diffstat (limited to 'include/net/netns/hash.h')
-rw-r--r--include/net/netns/hash.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/net/netns/hash.h b/include/net/netns/hash.h
new file mode 100644
index 000000000..69a6715d9
--- /dev/null
+++ b/include/net/netns/hash.h
@@ -0,0 +1,21 @@
+#ifndef __NET_NS_HASH_H__
+#define __NET_NS_HASH_H__
+
+#include <asm/cache.h>
+
+struct net;
+
+static inline u32 net_hash_mix(const struct net *net)
+{
+#ifdef CONFIG_NET_NS
+ /*
+ * shift this right to eliminate bits, that are
+ * always zeroed
+ */
+
+ return (u32)(((unsigned long)net) >> L1_CACHE_SHIFT);
+#else
+ return 0;
+#endif
+}
+#endif