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Date: Tue, 21 Nov 2017 13:41:37 -0600
From: Bruno Wolff III <bruno@wolff.to>
To: wireguard@lists.zx2c4.com
Subject: d8738d57ab9ab976a1899e73d955d38317f44486 not building with
 4.15.0-0.rc0.git6.
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I tried building the latest WireGuard on the latest rawhide kernel an got 
the following error:

/home/bruno/WireGuard/src/netlink.c: In function ‘get_device_dump_real’:
/home/bruno/WireGuard/src/netlink.c:180:2: error: too many arguments to function ‘genl_dump_check_consistent’
  genl_dump_check_consistent(cb, hdr, &genl_family);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/bruno/WireGuard/src/netlink.c:11:0:
./include/net/genetlink.h:194:20: note: declared here
 static inline void genl_dump_check_consistent(struct netlink_callback *cb,
                    ^~~~~~~~~~~~~~~~~~~~~~~~~~
make[2]: *** [scripts/Makefile.build:306: /home/bruno/WireGuard/src/netlink.o] Error 1

I also got some warnings about redefining READ_ONCE:

 CC [M]  /home/bruno/WireGuard/src/netlink.o
In file included from ./include/linux/kernel.h:10:0,
                 from ./include/linux/skbuff.h:17,
                 from ./include/linux/ip.h:20,
                 from /home/bruno/WireGuard/src/compat/compat.h:528,
                 from <command-line>:0:
./include/linux/compiler.h:249:0: warning: "READ_ONCE" redefined
 #define READ_ONCE(x) __READ_ONCE(x, 1)
 
In file included from <command-line>:0:0:
/home/bruno/WireGuard/src/compat/compat.h:42:0: note: this is the location of the previous definition
 #define READ_ONCE ACCESS_ONCE