nvdimm: constify device_type structures

Declare device_type structure as const as it is only stored in the
type field of a device structure. This field is of type const, so add
const to declaration of device_type structure.

File size before:
  text	   data	    bss	    dec	    hex	filename
  19278	   3199	     16	  22493	   57dd	nvdimm/namespace_devs.o

File size after:
  text	   data	    bss	    dec	    hex	filename
  19929	   3160	     16	  23105	   5a41	nvdimm/namespace_devs.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

path: root/include/net/fou.h

#ifndef __NET_FOU_H
#define __NET_FOU_H

#include <linux/skbuff.h>

#include <net/flow.h>
#include <net/gue.h>
#include <net/ip_tunnels.h>
#include <net/udp.h>

size_t fou_encap_hlen(struct ip_tunnel_encap *e);
size_t gue_encap_hlen(struct ip_tunnel_encap *e);

int __fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
		       u8 *protocol, __be16 *sport, int type);
int __gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
		       u8 *protocol, __be16 *sport, int type);

#endif