wimax: move out to staging

There are no known users of this driver as of October 2020, and it will
be removed unless someone turns out to still need it in future releases.

According to https://en.wikipedia.org/wiki/List_of_WiMAX_networks, there
have been many public wimax networks, but it appears that many of these
have migrated to LTE or discontinued their service altogether.
As most PCs and phones lack WiMAX hardware support, the remaining
networks tend to use standalone routers. These almost certainly
run Linux, but not a modern kernel or the mainline wimax driver stack.

NetworkManager appears to have dropped userspace support in 2015
https://bugzilla.gnome.org/show_bug.cgi?id=747846, the
www.linuxwimax.org
site had already shut down earlier.

WiMax is apparently still being deployed on airport campus networks
("AeroMACS"), but in a frequency band that was not supported by the old
Intel 2400m (used in Sandy Bridge laptops and earlier), which is the
only driver using the kernel's wimax stack.

Move all files into drivers/staging/wimax, including the uapi header
files and documentation, to make it easier to remove it when it gets
to that. Only minimal changes are made to the source files, in order
to make it possible to port patches across the move.

Also remove the MAINTAINERS entry that refers to a broken mailing
list and website.

Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-By: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Suggested-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 37 insertions, 0 deletions

diff --git a/drivers/staging/wimax/i2400m/Kconfig b/drivers/staging/wimax/i2400m/Kconfig
new file mode 100644
index 000000000000..843b905a26a3
--- /dev/null
+++ b/drivers/staging/wimax/i2400m/Kconfig
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config WIMAX_I2400M
+	tristate
+	depends on WIMAX
+	select FW_LOADER
+
+comment "Enable USB support to see WiMAX USB drivers"
+	depends on USB = n
+
+config WIMAX_I2400M_USB
+	tristate "Intel Wireless WiMAX Connection 2400 over USB (including 5x50)"
+	depends on WIMAX && USB
+	select WIMAX_I2400M
+	help
+	  Select if you have a device based on the Intel WiMAX
+	  Connection 2400 over USB (like any of the Intel Wireless
+	  WiMAX/WiFi Link 5x50 series).
+
+	  If unsure, it is safe to select M (module).
+
+config WIMAX_I2400M_DEBUG_LEVEL
+	int "WiMAX i2400m debug level"
+	depends on WIMAX_I2400M
+	default 8
+	help
+
+	  Select the maximum debug verbosity level to be compiled into
+	  the WiMAX i2400m driver code.
+
+	  By default, this is disabled at runtime and can be
+	  selectively enabled at runtime for different parts of the
+	  code using the sysfs debug-levels file.
+
+	  If set at zero, this will compile out all the debug code.
+
+	  It is recommended that it is left at 8.