﻿id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
20198	Virtualbox Linux vboxnetflt driver cannot be built with 5.11 kernel => fixed in svn/6.1.x x>18	cloudsw	BP	"Failed to rebuild drivers after installing 5.11 kernel:

$sudo vboxconfig 
vboxdrv.sh: Stopping VirtualBox services.
vboxdrv.sh: Starting VirtualBox services.
vboxdrv.sh: Building VirtualBox kernel modules.
vboxdrv.sh: failed: Look at /var/log/vbox-setup.log to find out what went wrong.

There were problems setting up VirtualBox.  To re-start the set-up process, run
  /sbin/vboxconfig
as root.  If your system is using EFI Secure Boot you may need to sign the
kernel modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) before you can load
them. Please see your Linux system's documentation for more information.

vbox-setup.log is attached
{{{
/tmp/vbox.0/linux/VBoxNetFlt-linux.c: In function ‘vboxNetFltNeedsLinkState’:
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1761:47: error: dereferencing pointer to incomplete type ‘const struct ethtool_ops’
 1761 |     if (pDev->ethtool_ops && pDev->ethtool_ops->get_drvinfo)
      |                                               ^~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1763:32: error: storage size of ‘Info’ isn’t known
 1763 |         struct ethtool_drvinfo Info;
      |                                ^~~~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1766:20: error: ‘ETHTOOL_GDRVINFO’ undeclared (first use in this function)
 1766 |         Info.cmd = ETHTOOL_GDRVINFO;
      |                    ^~~~~~~~~~~~~~~~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1766:20: note: each undeclared identifier is reported only once for each function it appears in
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1763:32: warning: unused variable ‘Info’ [-Wunused-variable]
 1763 |         struct ethtool_drvinfo Info;
      |                                ^~~~
make[2]: *** [scripts/Makefile.build:279: /tmp/vbox.0/linux/VBoxNetFlt-linux.o] Error 1
make[1]: *** [Makefile:1800: /tmp/vbox.0] Error 2
make: *** [/tmp/vbox.0/Makefile-footer.gmk:117: vboxnetflt] Error 2
}}}"	defect	closed	host support	VirtualBox 6.1.18	fixed	5.11 kernel		other	Linux
