Hi Wireguard Users,

It looks like CentOS 7.5 was released recently, bringing with it new kernel
and tools versions. When installing the wireguard-dkms package from the
RHEL/CentOS7 repo, I'm seeing the following error:

make -j40 KERNELRELEASE=3.10.0-862.el7.x86_64 -C
/lib/modules/3.10.0-862.el7.x86_64/build
M=/var/lib/dkms/wireguard/0.0.20180420/build...(bad exit status: 2)
Error! Bad return status for module build on kernel: 3.10.0-862.el7.x86_64
(x86_64)
Consult /var/lib/dkms/wireguard/0.0.20180420/build/make.log for more
information.

The make.log is pasted below. Any new requirements needed to build, or is a
code change required?

DKMS make.log for wireguard-0.0.20180420 for kernel 3.10.0-862.el7.x86_64
(x86_64)
Thu May 10 09:37:05 EDT 2018
make: Entering directory `/usr/src/kernels/3.10.0-862.el7.x86_64'
  LD      /var/lib/dkms/wireguard/0.0.20180420/build/built-in.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/main.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/noise.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/device.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/peer.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/timers.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/queueing.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/send.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/receive.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/socket.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/hashtables.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/allowedips.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/ratelimiter.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/cookie.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/netlink.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/crypto/curve25519.o
  CC [M]
/var/lib/dkms/wireguard/0.0.20180420/build/crypto/chacha20poly1305.o
  AS [M]
/var/lib/dkms/wireguard/0.0.20180420/build/crypto/chacha20-x86_64.o
  CC [M]  /var/lib/dkms/wireguard/0.0.20180420/build/crypto/blake2s.o
  AS [M]
/var/lib/dkms/wireguard/0.0.20180420/build/crypto/poly1305-x86_64.o
  AS [M]  /var/lib/dkms/wireguard/0.0.20180420/build/crypto/blake2s-x86_64.o
  CC [M]
/var/lib/dkms/wireguard/0.0.20180420/build/compat/siphash/siphash.o
/var/lib/dkms/wireguard/0.0.20180420/build/crypto/chacha20-x86_64.o:
warning: objtool: chacha20_avx512vl()+0x3f: can't find jump dest
instruction at .text+0x2669
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:115:20: error:
redefinition of ‘skb_reset_tc’
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from include/linux/filter.h:11:0,
                 from include/net/sock.h:67,
                 from include/linux/tcp.h:23,
                 from include/linux/ipv6.h:70,
                 from include/net/dsfield.h:11,
                 from include/net/ip_tunnels.h:12,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/net/sch_generic.h:454:20: note: previous definition of
‘skb_reset_tc’ was here
 static inline void skb_reset_tc(struct sk_buff *skb)
                    ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/main.o] Error 1
make[1]: *** Waiting for unfinished jobs....
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:177:0,
                 from <command-line>:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/checksum/checksum_partial_compat.h:192:19:
error: static declaration of ‘skb_checksum_setup’ follows non-static
declaration
 static inline int skb_checksum_setup(struct sk_buff *skb, bool recalculate)
                   ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
In file included from include/linux/ip.h:20:0,
                 from include/linux/if_tunnel.h:4,
                 from include/net/ip_tunnels.h:4,
                 from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:80,
                 from <command-line>:0:
include/linux/skbuff.h:3855:5: note: previous declaration of
‘skb_checksum_setup’ was here
 int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
     ^
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/peer.o] Error 1
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
In file included from <command-line>:0:0:
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:445:31: error:
static declaration of ‘genl_family_attrbuf’ follows non-static declaration
 static inline struct nlattr **genl_family_attrbuf(const struct genl_family
*family)
                               ^
In file included from
/var/lib/dkms/wireguard/0.0.20180420/build/compat/compat.h:439:0,
                 from <command-line>:0:
include/net/genetlink.h:77:17: note: previous declaration of
‘genl_family_attrbuf’ was here
 struct nlattr **genl_family_attrbuf(const struct genl_family *family);
                 ^
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/noise.o] Error 1
/var/lib/dkms/wireguard/0.0.20180420/build/netlink.c: In function
‘genetlink_init’:
/var/lib/dkms/wireguard/0.0.20180420/build/netlink.c:511:2: error: implicit
declaration of function ‘genl_register_family_with_ops’
[-Werror=implicit-function-declaration]
  return genl_register_family(&genl_family);
  ^
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/queueing.o] Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/device.o] Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/hashtables.o]
Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/ratelimiter.o]
Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/allowedips.o]
Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/socket.o] Error 1
cc1: some warnings being treated as errors
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/receive.o] Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/send.o] Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/netlink.o] Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/timers.o] Error 1
make[1]: ***
[/var/lib/dkms/wireguard/0.0.20180420/build/crypto/curve25519.o] Error 1
make[1]: ***
[/var/lib/dkms/wireguard/0.0.20180420/build/compat/siphash/siphash.o] Error
1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/crypto/blake2s.o]
Error 1
make[1]: *** [/var/lib/dkms/wireguard/0.0.20180420/build/cookie.o] Error 1
make[1]: ***
[/var/lib/dkms/wireguard/0.0.20180420/build/crypto/chacha20poly1305.o]
Error 1
make: *** [_module_/var/lib/dkms/wireguard/0.0.20180420/build] Error 2
make: Leaving directory `/usr/src/kernels/3.10.0-862.el7.x86_64'
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