This allows an application to set a larger socket receive buffer size.
The default size is left unchanged (212992). 1MB is arbitrary chosen.
The main reason for this is to allow netlink kernel sockets to
hold more interface data while user-space is processing it. Typically
useful during main configuration changes where lots of kernel side
changes occur in short period of time, such as VLAN creation.
Signed-off-by: Richard Alpe <richard@bit42.se>
Instead of having to rely on the kernel command line, we convert all the
kernel functionality in question into modules and rely on the auto-load
feature in the kernel and modprobe to add options at load time.
The fb_tunnels setting is a net core setting, for that we use sysctl.
This commit also syncs the kernel config between our two main archs,
disabling DRM and SOUND for the Amd64 build as a spin-off.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
