[arch-general] Kernel 4.14.3-1-ARCH breaks dkms rebuild of Virtualbox drivers - ‘SKB_GSO_UDP’ undeclared

[David C. Rankin]

All,

  Updated to 4.14.3 breaks virtualbox 5.1.30 OSE (released 11/17) modules
rebuild. The pacman error is:

==> dkms install vboxhost/5.1.30 -k 4.14.3-1-ARCH
Error! Bad return status for module build on kernel: 4.14.3-1-ARCH (x86_64)
Consult /var/lib/dkms/vboxhost/5.1.30/build/make.log for more information.

The make.log error is:

/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/linux/VBoxNetFlt-linux.c: In
function ‘vboxNetFltLinuxSkBufFromSG’:
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/linux/VBoxNetFlt-linux.c:726:24:
error: ‘SKB_GSO_UDP’ undeclared (first use in this function); did you mean
‘SKB_GSO_ESP’?
             fGsoType = SKB_GSO_UDP;
                        ^~~~~~~~~~~
                        SKB_GSO_ESP
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/linux/VBoxNetFlt-linux.c:726:24:
note: each undeclared identifier is reported only once for each function it
appears in
In file included from
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/include/iprt/types.h:29:0,
                 from
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/r0drv/linux/the-linux-kernel.h:34,
                 from
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/linux/VBoxNetFlt-linux.c:24:
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/linux/VBoxNetFlt-linux.c: In
function ‘vboxNetFltLinuxCanForwardAsGso’:
  LD [M]  /var/lib/dkms/vboxhost/5.1.30/build/vboxnetadp/vboxnetadp.o
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/linux/VBoxNetFlt-linux.c:1112:53:
error: ‘SKB_GSO_UDP’ undeclared (first use in this function); did you mean
‘SKB_GSO_ESP’?
     if (RT_UNLIKELY( skb_shinfo(pSkb)->gso_type & ~(SKB_GSO_UDP |
SKB_GSO_DODGY | SKB_GSO_TCPV6 | SKB_GSO_TCPV4) ))
                                                     ^
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/include/iprt/cdefs.h:1612:53:
note: in definition of macro ‘RT_UNLIKELY’
 #  define RT_UNLIKELY(expr)     __builtin_expect(!!(expr), 0)
                                                     ^~~~
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/linux/VBoxNetFlt-linux.c: In
function ‘vboxNetFltLinuxForwardToIntNet’:
/var/lib/dkms/vboxhost/5.1.30/build/vboxnetflt/linux/VBoxNetFlt-linux.c:1405:47:
error: ‘SKB_GSO_UDP’ undeclared (first use in this function); did you mean
‘SKB_GSO_ESP’?
         if (   (skb_shinfo(pBuf)->gso_type & (SKB_GSO_UDP | SKB_GSO_TCPV6 |
SKB_GSO_TCPV4))
                                               ^~~~~~~~~~~
                                               SKB_GSO_ESP

  This worked fine in the last kernel. Is there a reason this should break
now? Virtualbox 5.2 is currently not an option until a few bugs are fixed
affecting the headless clients I run (e.g.
https://www.virtualbox.org/ticket/17259)

  Is there a workaround that could define this constant, or was this
inadvertently left out of the latest kernel? Let me know if a bug is needed,
I'm happy to file it.


-- 
David C. Rankin, J.D.,P.E.