Description of problem:

Please consider enabling Xillybus' drivers as modules on future kernels releases.

Version-Release number of selected component (if applicable):

kernel-*

Steps to Reproduce:
$ grep XILLYBUS /boot/config-4.2.3-300.fc23.x86_64

(or as applicable to distribution)

Actual results:

# CONFIG_XILLYBUS is not set

Expected results:

CONFIG_XILLYBUS=m
CONFIG_XILLYBUS_PCIE=m

Additional info:

Xillybus is a solution for communication between programmable hardware (FPGA) and a host using the PCIe bus (and possibly other buses on embedded platforms). It's further explained in the kernel tree's Documentation/xillybus.txt and at http://www.xillybus.com.

The suggested fix enables the compilation of the driver for Xillybus as a module. This driver has been in the kernel under drivers/char/xillybus/ since kernel v3.18 (and as a staging driver since v3.12) and is beneficial for FPGA hardware developers using the relevant hardware component.

Being a kernel module for a PCIe device, it's activated only on a Vendor/Device IDs match, so this change has no possible impact on users who have no direct interest in it. Regardless, the module is stable for several years.

CONFIG_XILLYBUS_PCIE=m enables the module which supports Xillybus based upon PCIe. CONFIG_XILLYBUS=m is required by CONFIG_XILLYBUS_PCIE (contains the core driver for Xillybus which is common with Xillybus for embedded platforms).

Thanks in advance,
  Eli