Den 01-04-2020 kl. 15:48, skrev Roman Mamedov:
> On Mon, 30 Mar 2020 18:19:17 -0600
> "Jason A. Donenfeld" <Jason@zx2c4.com> wrote:
>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA256
>>
>> Hello,
>>
>> A new version, v1.0.20200330, of the backported WireGuard kernel module for
>> 3.10 <= Linux <= 5.5.y has been tagged in the git repository.
> My kernel build for 5.4.29 has failed just now:
>
> In file included from <command-line>:
> ././net/wireguard/compat/compat.h:1029:20: error: redefinition of ‘skb_reset_redirect’
>   static inline void skb_reset_redirect(struct sk_buff *skb)
>                      ^~~~~~~~~~~~~~~~~~
> In file included from ././net/wireguard/compat/compat.h:878,
>                   from <command-line>:
> ./include/linux/skbuff.h:4538:20: note: previous definition of ‘skb_reset_redirect’ was here
>   static inline void skb_reset_redirect(struct sk_buff *skb)
>                      ^~~~~~~~~~~~~~~~~~
> In file included from <command-line>:
> ././net/wireguard/compat/compat.h: In function ‘skb_reset_redirect’:
> ././net/wireguard/compat/compat.h:1032:2: error: implicit declaration of function ‘skb_reset_tc’; did you mean ‘skb_reserve’? [-Werror=implicit-function-declaration]
>    skb_reset_tc(skb);
>    ^~~~~~~~~~~~
>    skb_reserve
> cc1: some warnings being treated as errors
> scripts/Makefile.build:265: recipe for target 'net/wireguard/main.o' failed
> make[3]: *** [net/wireguard/main.o] Error 1
> scripts/Makefile.build:500: recipe for target 'net/wireguard' failed
> make[2]: *** [net/wireguard] Error 2
>

This is because the skb_reset_redirect() change from 5.6 got backported 
in 5.5.14 and 5.4.29, so you need the attached patch


--

Thomas