LXR linux/include/net/netns/hash.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __NET_NS_HASH_H__
   3#define __NET_NS_HASH_H__
   4
   5#include <asm/cache.h>
   6
   7struct net;
   8
   9static inline u32 net_hash_mix(const struct net *net)
  10{
  11#ifdef CONFIG_NET_NS
  12        /*
  13         * shift this right to eliminate bits, that are
  14         * always zeroed
  15         */
  16
  17        return (u32)(((unsigned long)net) >> L1_CACHE_SHIFT);
  18#else
  19        return 0;
  20#endif
  21}
  22#endif
  23