Note to linux-kernel readers: This Cc-ed to linux-kernel because it is relevant for the "[RFC 0/2] Add Virtual Box vboxguest and vboxsf guest drivers to the mainline kernel" thread.
Hi Michael, Knut, My first submission of the vboxguest driver for inclusion into the Linux kernel has lead to some questions about the use of the VBOXGUEST_IOCTL_FLAG to differentiate between 32 and 64 bit ioctls. Under Linux this is not necessary, as the driver already knows if it is serving a 32 bit compat or a regular ioctl. So I've come up with this patch to make VBOXGUEST_IOCTL_FLAG always 0 under Linux. I was hoping the f32bit flag could be used under more platforms so that it would actually be a cleanup, but it seems that Linux is the only platform with a compat_ioctl callback in its file-operations struct. Please let me know if you would be willing to merge this patch into upstream VirtualBox. Regards, Hans
