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linux-next/include/net/netns/hash.h
Eric Dumazet 6eada0110c netns: constify net_hash_mix() and various callers
const qualifiers ease code review by making clear
which objects are not written in a function.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:00:34 -04:00

22 lines
332 B
C

#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