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: Jakub Kicinski <kuba@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 106 deletions

diff --git a/drivers/net/wan/lmc/lmc_proto.c b/drivers/net/wan/lmc/lmc_proto.c
deleted file mode 100644
index e5487616a816..000000000000
--- a/drivers/net/wan/lmc/lmc_proto.c
+++ /dev/null
@@ -1,106 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
- /*
-  * Copyright (c) 1997-2000 LAN Media Corporation (LMC)
-  * All rights reserved.  www.lanmedia.com
-  *
-  * This code is written by:
-  * Andrew Stanley-Jones (asj@cban.com)
-  * Rob Braun (bbraun@vix.com),
-  * Michael Graff (explorer@vix.com) and
-  * Matt Thomas (matt@3am-software.com).
-  *
-  * With Help By:
-  * David Boggs
-  * Ron Crane
-  * Allan Cox
-  *
-  * Driver for the LanMedia LMC5200, LMC5245, LMC1000, LMC1200 cards.
-  */
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/in.h>
-#include <linux/if_arp.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/inet.h>
-#include <linux/workqueue.h>
-#include <linux/proc_fs.h>
-#include <linux/bitops.h>
-#include <asm/processor.h>             /* Processor type for cache alignment. */
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <linux/smp.h>
-
-#include "lmc.h"
-#include "lmc_var.h"
-#include "lmc_debug.h"
-#include "lmc_ioctl.h"
-#include "lmc_proto.h"
-
-// attach
-void lmc_proto_attach(lmc_softc_t *sc) /*FOLD00*/
-{
-    if (sc->if_type == LMC_NET) {
-            struct net_device *dev = sc->lmc_device;
-            /*
-	     * They set a few basics because they don't use HDLC
-             */
-            dev->flags |= IFF_POINTOPOINT;
-            dev->hard_header_len = 0;
-            dev->addr_len = 0;
-        }
-}
-
-int lmc_proto_open(lmc_softc_t *sc)
-{
-	int ret = 0;
-
-	if (sc->if_type == LMC_PPP) {
-		ret = hdlc_open(sc->lmc_device);
-		if (ret < 0)
-			printk(KERN_WARNING "%s: HDLC open failed: %d\n",
-			       sc->name, ret);
-	}
-	return ret;
-}
-
-void lmc_proto_close(lmc_softc_t *sc)
-{
-	if (sc->if_type == LMC_PPP)
-		hdlc_close(sc->lmc_device);
-}
-
-__be16 lmc_proto_type(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
-{
-    switch(sc->if_type){
-    case LMC_PPP:
-	    return hdlc_type_trans(skb, sc->lmc_device);
-    case LMC_NET:
-        return htons(ETH_P_802_2);
-    case LMC_RAW: /* Packet type for skbuff kind of useless */
-        return htons(ETH_P_802_2);
-    default:
-        printk(KERN_WARNING "%s: No protocol set for this interface, assuming 802.2 (which is wrong!!)\n", sc->name);
-        return htons(ETH_P_802_2);
-    }
-}
-
-void lmc_proto_netif(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
-{
-    switch(sc->if_type){
-    case LMC_PPP:
-    case LMC_NET:
-    default:
-        netif_rx(skb);
-        break;
-    case LMC_RAW:
-        break;
-    }
-}