Staging: batman-adv: Remove compat.h

Since we are now part of mainline, we don't need compat.h to allow
building of the module with old versions of the kernel.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/batman-adv/TODO

@@ -17,9 +17,6 @@
 -> transtable_global (read-only) [outputs the global translation table]
 -> transtable_local (read-only) [outputs the local translation table]
 
-=> strip out all backward compatibility support to older kernels
-   (only found in compat.h)
-
 => fix checkpatch.pl errors
 
 Please send all patches to:

drivers/staging/batman-adv/compat.h

-/*
- * Copyright (C) 2007-2009 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner, Simon Wunderlich
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- *
- * This file contains macros for maintaining compatibility with older versions
- * of the Linux kernel.
- */
-
-#include <linux/version.h>	/* LINUX_VERSION_CODE */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 22)
-
-#define skb_set_network_header(_skb, _offset) \
-	do { (_skb)->nh.raw = (_skb)->data + (_offset); } while (0)
-
-#define skb_reset_mac_header(_skb) \
-	do { (_skb)->mac.raw = (_skb)->data; } while (0)
-
-#define list_first_entry(ptr, type, member) \
-	list_entry((ptr)->next, type, member)
-
-#define skb_mac_header(_skb) \
-    ((_skb)->mac.raw)
-
-#define skb_network_header(_skb) \
-    ((_skb)->nh.raw)
-
-#define skb_mac_header(_skb) \
-    ((_skb)->mac.raw)
-
-#endif /* < KERNEL_VERSION(2,6,22) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 23)
-
-static inline int skb_clone_writable(struct sk_buff *skb, unsigned int len)
-{
-	/* skb->hdr_len not available, just "not writable" to enforce a copy */
-	return 0;
-}
-
-#define cancel_delayed_work_sync(wq) cancel_rearming_delayed_work(wq)
-
-#endif /* < KERNEL_VERSION(2, 6, 23) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)
-
-#define strict_strtoul(cp, base, res) \
-	({ \
-	int ret = 0; \
-	char *endp; \
-	*res = simple_strtoul(cp, &endp, base); \
-	if (cp == endp) \
-		ret = -EINVAL; \
-	ret; \
-})
-
-#endif /* < KERNEL_VERSION(2, 6, 25) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)
-
-static const char hex_asc[] = "0123456789abcdef";
-#define hex_asc_lo(x)   hex_asc[((x) & 0x0f)]
-#define hex_asc_hi(x)   hex_asc[((x) & 0xf0) >> 4]
-static inline char *pack_hex_byte(char *buf, u8 byte)
-{
-    *buf++ = hex_asc_hi(byte);
-    *buf++ = hex_asc_lo(byte);
-    return buf;
-}
-
-#define device_create(_cls, _parent, _devt, _device, _fmt) \
-	class_device_create(_cls, _parent, _devt, _device, _fmt)
-
-#define device_destroy(_cls, _device) \
-	class_device_destroy(_cls, _device)
-
-#endif /* < KERNEL_VERSION(2, 6, 26) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27)
-
-#ifndef dereference_function_descriptor
-#define dereference_function_descriptor(p) (p)
-#endif
-
-#ifndef device_create
-#define device_create(_cls, _parent, _devt, _device, _fmt) \
-	device_create_drvdata(_cls, _parent, _devt, _device, _fmt)
-#endif
-
-#endif /* < KERNEL_VERSION(2, 6, 27) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
-
-asmlinkage int bat_printk(const char *fmt, ...);
-#define printk bat_printk
-
-static inline struct net_device_stats *dev_get_stats(struct net_device *dev)
-{
-	if (dev->get_stats)
-		return dev->get_stats(dev);
-	else
-		return NULL;
-}
-
-#endif /* < KERNEL_VERSION(2, 6, 29) */

drivers/staging/batman-adv/device.c

@@ -26,8 +26,6 @@
 #include "types.h"
 #include "hash.h"
 
-#include "compat.h"
-
 static struct class *batman_class;
 
 static int Major;	/* Major number assigned to our device driver */

drivers/staging/batman-adv/hard-interface.c

@@ -26,7 +26,6 @@
 #include "translation-table.h"
 #include "routing.h"
 #include "hash.h"
-#include "compat.h"
 
 #define MIN(x, y) ((x) < (y) ? (x) : (y))
 

drivers/staging/batman-adv/main.c

@@ -31,7 +31,6 @@
 #include "types.h"
 #include "vis.h"
 #include "hash.h"
-#include "compat.h"
 
 struct list_head if_list;
 struct hlist_head forw_bat_list;

drivers/staging/batman-adv/originator.c

@@ -26,8 +26,6 @@
 #include "hash.h"
 #include "translation-table.h"
 #include "routing.h"
-#include "compat.h"
-
 
 static DECLARE_DELAYED_WORK(purge_orig_wq, purge_orig);
 
@@ -80,11 +78,10 @@ create_neighbor(struct orig_node *orig_node, struct orig_node *orig_neigh_node,
 
 	bat_dbg(DBG_BATMAN, "Creating new last-hop neighbor of originator\n");
 
-	neigh_node = kmalloc(sizeof(struct neigh_node), GFP_ATOMIC);
+	neigh_node = kzalloc(sizeof(struct neigh_node), GFP_ATOMIC);
 	if (!neigh_node)
 		return NULL;
 
-	memset(neigh_node, 0, sizeof(struct neigh_node));
 	INIT_LIST_HEAD(&neigh_node->list);
 
 	memcpy(neigh_node->addr, neigh, ETH_ALEN);
@@ -131,11 +128,10 @@ struct orig_node *get_orig_node(uint8_t *addr)
 
 	bat_dbg(DBG_BATMAN, "Creating new originator: %pM \n", addr);
 
-	orig_node = kmalloc(sizeof(struct orig_node), GFP_ATOMIC);
+	orig_node = kzalloc(sizeof(struct orig_node), GFP_ATOMIC);
 	if (!orig_node)
 		return NULL;
 
-	memset(orig_node, 0, sizeof(struct orig_node));
 	INIT_LIST_HEAD(&orig_node->neigh_list);
 
 	memcpy(orig_node->orig, addr, ETH_ALEN);
@@ -145,19 +141,15 @@ struct orig_node *get_orig_node(uint8_t *addr)
 
 	size = num_ifs * sizeof(TYPE_OF_WORD) * NUM_WORDS;
 
-	orig_node->bcast_own = kmalloc(size, GFP_ATOMIC);
+	orig_node->bcast_own = kzalloc(size, GFP_ATOMIC);
 	if (!orig_node->bcast_own)
 		goto free_orig_node;
 
-	memset(orig_node->bcast_own, 0, size);
-
 	size = num_ifs * sizeof(uint8_t);
-	orig_node->bcast_own_sum = kmalloc(size, GFP_ATOMIC);
+	orig_node->bcast_own_sum = kzalloc(size, GFP_ATOMIC);
 	if (!orig_node->bcast_own_sum)
 		goto free_bcast_own;
 
-	memset(orig_node->bcast_own_sum, 0, size);
-
 	if (hash_add(orig_hash, orig_node) < 0)
 		goto free_bcast_own_sum;
 

drivers/staging/batman-adv/proc.c

@@ -27,7 +27,6 @@
 #include "types.h"
 #include "hash.h"
 #include "vis.h"
-#include "compat.h"
 
 static struct proc_dir_entry *proc_batman_dir, *proc_interface_file;
 static struct proc_dir_entry *proc_orig_interval_file, *proc_originators_file;

drivers/staging/batman-adv/routing.c

@@ -32,7 +32,6 @@
 #include "ring_buffer.h"
 #include "vis.h"
 #include "aggregation.h"
-#include "compat.h"
 
 DECLARE_WAIT_QUEUE_HEAD(thread_wait);
 
@@ -310,7 +309,6 @@ static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr,
 
 update_hna:
 	update_routes(orig_node, orig_node->router, hna_buff, tmp_hna_buff_len);
-	return;
 }
 
 static char count_real_packets(struct ethhdr *ethhdr,

drivers/staging/batman-adv/send.c

@@ -29,8 +29,6 @@
 #include "vis.h"
 #include "aggregation.h"
 
-#include "compat.h"
-
 /* apply hop penalty for a normal link */
 static uint8_t hop_penalty(const uint8_t tq)
 {

drivers/staging/batman-adv/soft-interface.c

@@ -28,7 +28,6 @@
 #include "hash.h"
 #include <linux/ethtool.h>
 #include <linux/etherdevice.h>
-#include "compat.h"
 
 static uint16_t bcast_seqno = 1; /* give own bcast messages seq numbers to avoid
 				  * broadcast storms */
@@ -120,7 +119,7 @@ void interface_setup(struct net_device *dev)
 
 	/* generate random address */
 	random_ether_addr(dev_addr);
-	memcpy(dev->dev_addr, dev_addr, sizeof(dev->dev_addr));
+	memcpy(dev->dev_addr, dev_addr, ETH_ALEN);
 
 	SET_ETHTOOL_OPS(dev, &bat_ethtool_ops);
 
@@ -269,7 +268,7 @@ int interface_tx(struct sk_buff *skb, struct net_device *dev)
 dropped:
 	priv->stats.tx_dropped++;
 end:
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 void interface_rx(struct sk_buff *skb, int hdr_size)
@@ -338,7 +337,6 @@ static u32 bat_get_msglevel(struct net_device *dev)
 
 static void bat_set_msglevel(struct net_device *dev, u32 value)
 {
-	return;
 }
 
 static u32 bat_get_link(struct net_device *dev)

drivers/staging/batman-adv/translation-table.c

@@ -24,7 +24,6 @@
 #include "soft-interface.h"
 #include "types.h"
 #include "hash.h"
-#include "compat.h"
 
 struct hashtable_t *hna_local_hash;
 static struct hashtable_t *hna_global_hash;

drivers/staging/batman-adv/vis.c

@@ -26,7 +26,6 @@
 #include "soft-interface.h"
 #include "hard-interface.h"
 #include "hash.h"
-#include "compat.h"
 
 struct hashtable_t *vis_hash;
 DEFINE_SPINLOCK(vis_hash_lock);