Commit a5b116a0 authored by Jakub Kicinski's avatar Jakub Kicinski Committed by David S. Miller
Browse files

net: wan: remove the lanmedia (lmc) driver 

The driver for LAN Media WAN interfaces spews build warnings on
microblaze. The virt_to_bus() calls discard the volatile keyword.
The right thing to do would be to migrate this driver to a modern
DMA API but it seems unlikely anyone is actually using it.
There had been no fixes or functional changes here since
the git era begun.

Let's remove this driver, there isn't much changing in the APIs,
if users come forward we can apologize and revert.

Link: https://lore.kernel.org/all/20220321144013.440d7fc0@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 207d924d

arch/mips/configs/gpr_defconfig

+0 −1
Original line number Diff line number Diff line
@@ -214,7 +214,6 @@ CONFIG_ATH_DEBUG=y 
CONFIG_ATH5K=y

CONFIG_ATH5K_DEBUG=y

CONFIG_WAN=y

CONFIG_LANMEDIA=m

CONFIG_HDLC=m

CONFIG_HDLC_RAW=m

CONFIG_HDLC_RAW_ETH=m

arch/mips/configs/mtx1_defconfig

+0 −1
Original line number Diff line number Diff line
@@ -363,7 +363,6 @@ CONFIG_USB_AN2720=y 
CONFIG_USB_EPSON2888=y

CONFIG_USB_SIERRA_NET=m

CONFIG_WAN=y

CONFIG_LANMEDIA=m

CONFIG_HDLC=m

CONFIG_HDLC_RAW=m

CONFIG_HDLC_RAW_ETH=m

drivers/net/wan/Kconfig

+0 −28
Original line number Diff line number Diff line
@@ -57,34 +57,6 @@ config COSA 
	  The driver will be compiled as a module: the

	  module will be called cosa.



#

# Lan Media's board. Currently 1000, 1200, 5200, 5245

#

config LANMEDIA

	tristate "LanMedia Corp. SSI/V.35, T1/E1, HSSI, T3 boards"

	depends on PCI && VIRT_TO_BUS && HDLC

	help

	  Driver for the following Lan Media family of serial boards:



	  - LMC 1000 board allows you to connect synchronous serial devices

	  (for example base-band modems, or any other device with the X.21,

	  V.24, V.35 or V.36 interface) to your Linux box.



	  - LMC 1200 with on board DSU board allows you to connect your Linux

	  box directly to a T1 or E1 circuit.



	  - LMC 5200 board provides a HSSI interface capable of running up to

	  52 Mbits per second.



	  - LMC 5245 board connects directly to a T3 circuit saving the

	  additional external hardware.



	  To change setting such as clock source you will need lmcctl.

	  It is available at <ftp://ftp.lanmedia.com/> (broken link).



	  To compile this driver as a module, choose M here: the

	  module will be called lmc.



# There is no way to detect a Sealevel board. Force it modular

config SEALEVEL_4021

	tristate "Sealevel Systems 4021 support"

drivers/net/wan/Makefile

+0 −2
Original line number Diff line number Diff line
@@ -19,8 +19,6 @@ obj-$(CONFIG_SEALEVEL_4021) += z85230.o sealevel.o 
obj-$(CONFIG_COSA)		+= cosa.o

obj-$(CONFIG_FARSYNC)		+= farsync.o



obj-$(CONFIG_LANMEDIA)		+= lmc/



obj-$(CONFIG_LAPBETHER)		+= lapbether.o

obj-$(CONFIG_N2)		+= n2.o

obj-$(CONFIG_C101)		+= c101.o

drivers/net/wan/lmc/Makefile

deleted100644 → 0
+0 −18
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0-only

#

# Makefile for the Lan Media 21140 based WAN cards

# Specifically the 1000,1200,5200,5245

#



obj-$(CONFIG_LANMEDIA) += lmc.o



lmc-objs := lmc_debug.o lmc_media.o lmc_main.o lmc_proto.o



# Like above except every packet gets echoed to KERN_DEBUG

# in hex

#

# DBDEF = \

# -DDEBUG \

# -DLMC_PACKET_LOG



ccflags-y := $(DBGDEF)