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Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_fib.c115
-rw-r--r--net/ipv6/route.c102
2 files changed, 108 insertions, 109 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 424f063fb229..7b4730315d09 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -190,7 +190,7 @@ static struct fib6_table *fib6_alloc_table(struct net *net, u32 id)
struct fib6_table *table;
table = kzalloc(sizeof(*table), GFP_ATOMIC);
- if (table != NULL) {
+ if (table) {
table->tb6_id = id;
table->tb6_root.leaf = net->ipv6.ip6_null_entry;
table->tb6_root.fn_flags = RTN_ROOT | RTN_TL_ROOT | RTN_RTINFO;
@@ -210,7 +210,7 @@ struct fib6_table *fib6_new_table(struct net *net, u32 id)
return tb;
tb = fib6_alloc_table(net, id);
- if (tb != NULL)
+ if (tb)
fib6_link_table(net, tb);
return tb;
@@ -367,7 +367,7 @@ static int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
s_e = cb->args[1];
w = (void *)cb->args[2];
- if (w == NULL) {
+ if (!w) {
/* New dump:
*
* 1. hook callback destructor.
@@ -379,7 +379,7 @@ static int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
* 2. allocate and initialize walker.
*/
w = kzalloc(sizeof(*w), GFP_ATOMIC);
- if (w == NULL)
+ if (!w)
return -ENOMEM;
w->func = fib6_dump_node;
cb->args[2] = (long)w;
@@ -467,7 +467,7 @@ static struct fib6_node * fib6_add_1(struct fib6_node *root, void *addr,
if (plen == fn->fn_bit) {
/* clean up an intermediate node */
- if ((fn->fn_flags & RTN_RTINFO) == 0) {
+ if (!(fn->fn_flags & RTN_RTINFO)) {
rt6_release(fn->leaf);
fn->leaf = NULL;
}
@@ -512,7 +512,7 @@ static struct fib6_node * fib6_add_1(struct fib6_node *root, void *addr,
ln = node_alloc();
- if (ln == NULL)
+ if (!ln)
return NULL;
ln->fn_bit = plen;
@@ -555,7 +555,7 @@ insert_above:
in = node_alloc();
ln = node_alloc();
- if (in == NULL || ln == NULL) {
+ if (!in || !ln) {
if (in)
node_free(in);
if (ln)
@@ -609,7 +609,7 @@ insert_above:
ln = node_alloc();
- if (ln == NULL)
+ if (!ln)
return NULL;
ln->fn_bit = plen;
@@ -642,15 +642,15 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
{
struct rt6_info *iter = NULL;
struct rt6_info **ins;
- int replace = (NULL != info->nlh &&
- (info->nlh->nlmsg_flags&NLM_F_REPLACE));
- int add = (NULL == info->nlh ||
- (info->nlh->nlmsg_flags&NLM_F_CREATE));
+ int replace = (info->nlh &&
+ (info->nlh->nlmsg_flags & NLM_F_REPLACE));
+ int add = (!info->nlh ||
+ (info->nlh->nlmsg_flags & NLM_F_CREATE));
int found = 0;
ins = &fn->leaf;
- for (iter = fn->leaf; iter; iter=iter->dst.rt6_next) {
+ for (iter = fn->leaf; iter; iter = iter->dst.rt6_next) {
/*
* Search for duplicates
*/
@@ -659,8 +659,8 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
/*
* Same priority level
*/
- if (NULL != info->nlh &&
- (info->nlh->nlmsg_flags&NLM_F_EXCL))
+ if (info->nlh &&
+ (info->nlh->nlmsg_flags & NLM_F_EXCL))
return -EEXIST;
if (replace) {
found++;
@@ -671,10 +671,10 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
iter->rt6i_idev == rt->rt6i_idev &&
ipv6_addr_equal(&iter->rt6i_gateway,
&rt->rt6i_gateway)) {
- if (!(iter->rt6i_flags&RTF_EXPIRES))
+ if (!(iter->rt6i_flags & RTF_EXPIRES))
return -EEXIST;
iter->rt6i_expires = rt->rt6i_expires;
- if (!(rt->rt6i_flags&RTF_EXPIRES)) {
+ if (!(rt->rt6i_flags & RTF_EXPIRES)) {
iter->rt6i_flags &= ~RTF_EXPIRES;
iter->rt6i_expires = 0;
}
@@ -707,7 +707,7 @@ add:
inet6_rt_notify(RTM_NEWROUTE, rt, info);
info->nl_net->ipv6.rt6_stats->fib_rt_entries++;
- if ((fn->fn_flags & RTN_RTINFO) == 0) {
+ if (!(fn->fn_flags & RTN_RTINFO)) {
info->nl_net->ipv6.rt6_stats->fib_route_nodes++;
fn->fn_flags |= RTN_RTINFO;
}
@@ -725,7 +725,7 @@ add:
atomic_inc(&rt->rt6i_ref);
inet6_rt_notify(RTM_NEWROUTE, rt, info);
rt6_release(iter);
- if ((fn->fn_flags & RTN_RTINFO) == 0) {
+ if (!(fn->fn_flags & RTN_RTINFO)) {
info->nl_net->ipv6.rt6_stats->fib_route_nodes++;
fn->fn_flags |= RTN_RTINFO;
}
@@ -737,7 +737,7 @@ add:
static __inline__ void fib6_start_gc(struct net *net, struct rt6_info *rt)
{
if (!timer_pending(&net->ipv6.ip6_fib_timer) &&
- (rt->rt6i_flags & (RTF_EXPIRES|RTF_CACHE)))
+ (rt->rt6i_flags & (RTF_EXPIRES | RTF_CACHE)))
mod_timer(&net->ipv6.ip6_fib_timer,
jiffies + net->ipv6.sysctl.ip6_rt_gc_interval);
}
@@ -761,25 +761,26 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
int err = -ENOMEM;
int allow_create = 1;
int replace_required = 0;
- if (NULL != info->nlh) {
- if (!(info->nlh->nlmsg_flags&NLM_F_CREATE))
+
+ if (info->nlh) {
+ if (!(info->nlh->nlmsg_flags & NLM_F_CREATE))
allow_create = 0;
- if ((info->nlh->nlmsg_flags&NLM_F_REPLACE))
+ if (info->nlh->nlmsg_flags & NLM_F_REPLACE)
replace_required = 1;
}
if (!allow_create && !replace_required)
pr_warn("IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE\n");
fn = fib6_add_1(root, &rt->rt6i_dst.addr, sizeof(struct in6_addr),
- rt->rt6i_dst.plen, offsetof(struct rt6_info, rt6i_dst),
- allow_create, replace_required);
+ rt->rt6i_dst.plen, offsetof(struct rt6_info, rt6i_dst),
+ allow_create, replace_required);
if (IS_ERR(fn)) {
err = PTR_ERR(fn);
fn = NULL;
}
- if (fn == NULL)
+ if (!fn)
goto out;
pn = fn;
@@ -788,7 +789,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
if (rt->rt6i_src.plen) {
struct fib6_node *sn;
- if (fn->subtree == NULL) {
+ if (!fn->subtree) {
struct fib6_node *sfn;
/*
@@ -803,7 +804,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
/* Create subtree root node */
sfn = node_alloc();
- if (sfn == NULL)
+ if (!sfn)
goto st_failure;
sfn->leaf = info->nl_net->ipv6.ip6_null_entry;
@@ -818,7 +819,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
offsetof(struct rt6_info, rt6i_src),
allow_create, replace_required);
- if (sn == NULL) {
+ if (!sn) {
/* If it is failed, discard just allocated
root, and then (in st_failure) stale node
in main tree.
@@ -840,11 +841,11 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
err = PTR_ERR(sn);
sn = NULL;
}
- if (sn == NULL)
+ if (!sn)
goto st_failure;
}
- if (fn->leaf == NULL) {
+ if (!fn->leaf) {
fn->leaf = rt;
atomic_inc(&rt->rt6i_ref);
}
@@ -853,10 +854,9 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
#endif
err = fib6_add_rt2node(fn, rt, info);
-
- if (err == 0) {
+ if (!err) {
fib6_start_gc(info->nl_net, rt);
- if (!(rt->rt6i_flags&RTF_CACHE))
+ if (!(rt->rt6i_flags & RTF_CACHE))
fib6_prune_clones(info->nl_net, pn, rt);
}
@@ -904,7 +904,7 @@ st_failure:
*/
struct lookup_args {
- int offset; /* key offset on rt6_info */
+ int offset; /* key offset on rt6_info */
const struct in6_addr *addr; /* search key */
};
@@ -934,11 +934,10 @@ static struct fib6_node * fib6_lookup_1(struct fib6_node *root,
fn = next;
continue;
}
-
break;
}
- while(fn) {
+ while (fn) {
if (FIB6_SUBTREE(fn) || fn->fn_flags & RTN_RTINFO) {
struct rt6key *key;
@@ -985,8 +984,7 @@ struct fib6_node * fib6_lookup(struct fib6_node *root, const struct in6_addr *da
};
fn = fib6_lookup_1(root, daddr ? args : args + 1);
-
- if (fn == NULL || fn->fn_flags & RTN_TL_ROOT)
+ if (!fn || fn->fn_flags & RTN_TL_ROOT)
fn = root;
return fn;
@@ -1046,7 +1044,7 @@ struct fib6_node * fib6_locate(struct fib6_node *root,
}
#endif
- if (fn && fn->fn_flags&RTN_RTINFO)
+ if (fn && fn->fn_flags & RTN_RTINFO)
return fn;
return NULL;
@@ -1060,14 +1058,13 @@ struct fib6_node * fib6_locate(struct fib6_node *root,
static struct rt6_info *fib6_find_prefix(struct net *net, struct fib6_node *fn)
{
- if (fn->fn_flags&RTN_ROOT)
+ if (fn->fn_flags & RTN_ROOT)
return net->ipv6.ip6_null_entry;
- while(fn) {
- if(fn->left)
+ while (fn) {
+ if (fn->left)
return fn->left->leaf;
-
- if(fn->right)
+ if (fn->right)
return fn->right->leaf;
fn = FIB6_SUBTREE(fn);
@@ -1105,12 +1102,12 @@ static struct fib6_node *fib6_repair_tree(struct net *net,
if (children == 3 || FIB6_SUBTREE(fn)
#ifdef CONFIG_IPV6_SUBTREES
/* Subtree root (i.e. fn) may have one child */
- || (children && fn->fn_flags&RTN_ROOT)
+ || (children && fn->fn_flags & RTN_ROOT)
#endif
) {
fn->leaf = fib6_find_prefix(net, fn);
#if RT6_DEBUG >= 2
- if (fn->leaf==NULL) {
+ if (!fn->leaf) {
WARN_ON(!fn->leaf);
fn->leaf = net->ipv6.ip6_null_entry;
}
@@ -1143,7 +1140,7 @@ static struct fib6_node *fib6_repair_tree(struct net *net,
read_lock(&fib6_walker_lock);
FOR_WALKERS(w) {
- if (child == NULL) {
+ if (!child) {
if (w->root == fn) {
w->root = w->node = NULL;
RT6_TRACE("W %p adjusted by delroot 1\n", w);
@@ -1172,7 +1169,7 @@ static struct fib6_node *fib6_repair_tree(struct net *net,
read_unlock(&fib6_walker_lock);
node_free(fn);
- if (pn->fn_flags&RTN_RTINFO || FIB6_SUBTREE(pn))
+ if (pn->fn_flags & RTN_RTINFO || FIB6_SUBTREE(pn))
return pn;
rt6_release(pn->leaf);
@@ -1206,7 +1203,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
if (w->state == FWS_C && w->leaf == rt) {
RT6_TRACE("walker %p adjusted by delroute\n", w);
w->leaf = rt->dst.rt6_next;
- if (w->leaf == NULL)
+ if (!w->leaf)
w->state = FWS_U;
}
}
@@ -1215,7 +1212,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
rt->dst.rt6_next = NULL;
/* If it was last route, expunge its radix tree node */
- if (fn->leaf == NULL) {
+ if (!fn->leaf) {
fn->fn_flags &= ~RTN_RTINFO;
net->ipv6.rt6_stats->fib_route_nodes--;
fn = fib6_repair_tree(net, fn);
@@ -1229,7 +1226,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
* to still alive ones.
*/
while (fn) {
- if (!(fn->fn_flags&RTN_RTINFO) && fn->leaf == rt) {
+ if (!(fn->fn_flags & RTN_RTINFO) && fn->leaf == rt) {
fn->leaf = fib6_find_prefix(net, fn);
atomic_inc(&fn->leaf->rt6i_ref);
rt6_release(rt);
@@ -1256,17 +1253,17 @@ int fib6_del(struct rt6_info *rt, struct nl_info *info)
return -ENOENT;
}
#endif
- if (fn == NULL || rt == net->ipv6.ip6_null_entry)
+ if (!fn || rt == net->ipv6.ip6_null_entry)
return -ENOENT;
WARN_ON(!(fn->fn_flags & RTN_RTINFO));
- if (!(rt->rt6i_flags&RTF_CACHE)) {
+ if (!(rt->rt6i_flags & RTF_CACHE)) {
struct fib6_node *pn = fn;
#ifdef CONFIG_IPV6_SUBTREES
/* clones of this route might be in another subtree */
if (rt->rt6i_src.plen) {
- while (!(pn->fn_flags&RTN_ROOT))
+ while (!(pn->fn_flags & RTN_ROOT))
pn = pn->parent;
pn = pn->parent;
}
@@ -1317,11 +1314,11 @@ static int fib6_walk_continue(struct fib6_walker_t *w)
for (;;) {
fn = w->node;
- if (fn == NULL)
+ if (!fn)
return 0;
if (w->prune && fn != w->root &&
- fn->fn_flags&RTN_RTINFO && w->state < FWS_C) {
+ fn->fn_flags & RTN_RTINFO && w->state < FWS_C) {
w->state = FWS_C;
w->leaf = fn->leaf;
}
@@ -1350,7 +1347,7 @@ static int fib6_walk_continue(struct fib6_walker_t *w)
w->state = FWS_C;
w->leaf = fn->leaf;
case FWS_C:
- if (w->leaf && fn->fn_flags&RTN_RTINFO) {
+ if (w->leaf && fn->fn_flags & RTN_RTINFO) {
int err;
if (w->count < w->skip) {
@@ -1524,7 +1521,7 @@ static int fib6_age(struct rt6_info *rt, void *arg)
* only if they are not in use now.
*/
- if (rt->rt6i_flags&RTF_EXPIRES && rt->rt6i_expires) {
+ if (rt->rt6i_flags & RTF_EXPIRES && rt->rt6i_expires) {
if (time_after(now, rt->rt6i_expires)) {
RT6_TRACE("expiring %p\n", rt);
return -1;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0e381bb94683..1138b0a5566d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -247,9 +247,9 @@ static inline struct rt6_info *ip6_dst_alloc(struct dst_ops *ops,
{
struct rt6_info *rt = dst_alloc(ops, dev, 0, 0, flags);
- if (rt != NULL)
+ if (rt)
memset(&rt->rt6i_table, 0,
- sizeof(*rt) - sizeof(struct dst_entry));
+ sizeof(*rt) - sizeof(struct dst_entry));
return rt;
}
@@ -263,7 +263,7 @@ static void ip6_dst_destroy(struct dst_entry *dst)
if (!(rt->dst.flags & DST_HOST))
dst_destroy_metrics_generic(dst);
- if (idev != NULL) {
+ if (idev) {
rt->rt6i_idev = NULL;
in6_dev_put(idev);
}
@@ -299,10 +299,10 @@ static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
struct net_device *loopback_dev =
dev_net(dev)->loopback_dev;
- if (dev != loopback_dev && idev != NULL && idev->dev == dev) {
+ if (dev != loopback_dev && idev && idev->dev == dev) {
struct inet6_dev *loopback_idev =
in6_dev_get(loopback_dev);
- if (loopback_idev != NULL) {
+ if (loopback_idev) {
rt->rt6i_idev = loopback_idev;
in6_dev_put(idev);
}
@@ -344,7 +344,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net,
if (dev->ifindex == oif)
return sprt;
if (dev->flags & IFF_LOOPBACK) {
- if (sprt->rt6i_idev == NULL ||
+ if (!sprt->rt6i_idev ||
sprt->rt6i_idev->dev->ifindex != oif) {
if (flags & RT6_LOOKUP_F_IFACE && oif)
continue;
@@ -636,7 +636,7 @@ do { \
goto restart; \
} \
} \
-} while(0)
+} while (0)
static struct rt6_info *ip6_pol_route_lookup(struct net *net,
struct fib6_table *table,
@@ -727,7 +727,7 @@ static struct rt6_info *rt6_alloc_cow(const struct rt6_info *ort,
struct neighbour *neigh;
int attempts = !in_softirq();
- if (!(rt->rt6i_flags&RTF_GATEWAY)) {
+ if (!(rt->rt6i_flags & RTF_GATEWAY)) {
if (rt->rt6i_dst.plen != 128 &&
ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
rt->rt6i_flags |= RTF_ANYCAST;
@@ -744,7 +744,8 @@ static struct rt6_info *rt6_alloc_cow(const struct rt6_info *ort,
#endif
retry:
- neigh = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
+ neigh = __neigh_lookup_errno(&nd_tbl, &rt->rt6i_gateway,
+ rt->rt6i_dev);
if (IS_ERR(neigh)) {
struct net *net = dev_net(rt->rt6i_dev);
int saved_rt_min_interval =
@@ -875,7 +876,7 @@ void ip6_route_input(struct sk_buff *skb)
.flowi6_iif = skb->dev->ifindex,
.daddr = iph->daddr,
.saddr = iph->saddr,
- .flowlabel = (* (__be32 *) iph)&IPV6_FLOWINFO_MASK,
+ .flowlabel = (* (__be32 *) iph) & IPV6_FLOWINFO_MASK,
.flowi6_mark = skb->mark,
.flowi6_proto = iph->nexthdr,
};
@@ -997,7 +998,7 @@ static void ip6_link_failure(struct sk_buff *skb)
rt = (struct rt6_info *) skb_dst(skb);
if (rt) {
- if (rt->rt6i_flags&RTF_CACHE) {
+ if (rt->rt6i_flags & RTF_CACHE) {
dst_set_expires(&rt->dst, 0);
rt->rt6i_flags |= RTF_EXPIRES;
} else if (rt->rt6i_node && (rt->rt6i_flags & RTF_DEFAULT))
@@ -1073,11 +1074,11 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
struct inet6_dev *idev = in6_dev_get(dev);
struct net *net = dev_net(dev);
- if (unlikely(idev == NULL))
+ if (unlikely(!idev))
return NULL;
rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, dev, 0);
- if (unlikely(rt == NULL)) {
+ if (unlikely(!rt)) {
in6_dev_put(idev);
goto out;
}
@@ -1085,7 +1086,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
if (neigh)
neigh_hold(neigh);
else {
- neigh = ndisc_get_neigh(dev, addr);
+ neigh = __neigh_lookup_errno(&nd_tbl, addr, dev);
if (IS_ERR(neigh))
neigh = NULL;
}
@@ -1238,23 +1239,23 @@ int ip6_route_add(struct fib6_config *cfg)
cfg->fc_metric = IP6_RT_PRIO_USER;
err = -ENOBUFS;
- if (NULL != cfg->fc_nlinfo.nlh &&
- !(cfg->fc_nlinfo.nlh->nlmsg_flags&NLM_F_CREATE)) {
+ if (cfg->fc_nlinfo.nlh &&
+ !(cfg->fc_nlinfo.nlh->nlmsg_flags & NLM_F_CREATE)) {
table = fib6_get_table(net, cfg->fc_table);
- if (table == NULL) {
+ if (!table) {
printk(KERN_WARNING "IPv6: NLM_F_CREATE should be specified when creating new route\n");
table = fib6_new_table(net, cfg->fc_table);
}
} else {
table = fib6_new_table(net, cfg->fc_table);
}
- if (table == NULL) {
+
+ if (!table)
goto out;
- }
rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, NULL, DST_NOCOUNT);
- if (rt == NULL) {
+ if (!rt) {
err = -ENOMEM;
goto out;
}
@@ -1303,8 +1304,9 @@ int ip6_route_add(struct fib6_config *cfg)
they would result in kernel looping; promote them to reject routes
*/
if ((cfg->fc_flags & RTF_REJECT) ||
- (dev && (dev->flags&IFF_LOOPBACK) && !(addr_type&IPV6_ADDR_LOOPBACK)
- && !(cfg->fc_flags&RTF_LOCAL))) {
+ (dev && (dev->flags & IFF_LOOPBACK) &&
+ !(addr_type & IPV6_ADDR_LOOPBACK) &&
+ !(cfg->fc_flags & RTF_LOCAL))) {
/* hold loopback dev/idev if we haven't done so. */
if (dev != net->loopback_dev) {
if (dev) {
@@ -1345,13 +1347,13 @@ int ip6_route_add(struct fib6_config *cfg)
some exceptions. --ANK
*/
err = -EINVAL;
- if (!(gwa_type&IPV6_ADDR_UNICAST))
+ if (!(gwa_type & IPV6_ADDR_UNICAST))
goto out;
grt = rt6_lookup(net, gw_addr, NULL, cfg->fc_ifindex, 1);
err = -EHOSTUNREACH;
- if (grt == NULL)
+ if (!grt)
goto out;
if (dev) {
if (dev != grt->rt6i_dev) {
@@ -1364,7 +1366,7 @@ int ip6_route_add(struct fib6_config *cfg)
dev_hold(dev);
in6_dev_hold(grt->rt6i_idev);
}
- if (!(grt->rt6i_flags&RTF_GATEWAY))
+ if (!(grt->rt6i_flags & RTF_GATEWAY))
err = 0;
dst_release(&grt->dst);
@@ -1372,12 +1374,12 @@ int ip6_route_add(struct fib6_config *cfg)
goto out;
}
err = -EINVAL;
- if (dev == NULL || (dev->flags&IFF_LOOPBACK))
+ if (!dev || (dev->flags & IFF_LOOPBACK))
goto out;
}
err = -ENODEV;
- if (dev == NULL)
+ if (!dev)
goto out;
if (!ipv6_addr_any(&cfg->fc_prefsrc)) {
@@ -1474,7 +1476,7 @@ static int ip6_route_del(struct fib6_config *cfg)
int err = -ESRCH;
table = fib6_get_table(cfg->fc_nlinfo.nl_net, cfg->fc_table);
- if (table == NULL)
+ if (!table)
return err;
read_lock_bh(&table->tb6_lock);
@@ -1486,7 +1488,7 @@ static int ip6_route_del(struct fib6_config *cfg)
if (fn) {
for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
if (cfg->fc_ifindex &&
- (rt->rt6i_dev == NULL ||
+ (!rt->rt6i_dev ||
rt->rt6i_dev->ifindex != cfg->fc_ifindex))
continue;
if (cfg->fc_flags & RTF_GATEWAY &&
@@ -1631,7 +1633,7 @@ void rt6_redirect(const struct in6_addr *dest, const struct in6_addr *src,
goto out;
nrt = ip6_rt_copy(rt, dest);
- if (nrt == NULL)
+ if (!nrt)
goto out;
nrt->rt6i_flags = RTF_GATEWAY|RTF_UP|RTF_DYNAMIC|RTF_CACHE;
@@ -1648,7 +1650,7 @@ void rt6_redirect(const struct in6_addr *dest, const struct in6_addr *src,
netevent.new = &nrt->dst;
call_netevent_notifiers(NETEVENT_REDIRECT, &netevent);
- if (rt->rt6i_flags&RTF_CACHE) {
+ if (rt->rt6i_flags & RTF_CACHE) {
ip6_del_rt(rt);
return;
}
@@ -1669,7 +1671,7 @@ static void rt6_do_pmtu_disc(const struct in6_addr *daddr, const struct in6_addr
int allfrag = 0;
again:
rt = rt6_lookup(net, daddr, saddr, ifindex, 0);
- if (rt == NULL)
+ if (!rt)
return;
if (rt6_check_expired(rt)) {
@@ -1817,7 +1819,7 @@ static struct rt6_info *rt6_get_route_info(struct net *net,
struct fib6_table *table;
table = fib6_get_table(net, RT6_TABLE_INFO);
- if (table == NULL)
+ if (!table)
return NULL;
write_lock_bh(&table->tb6_lock);
@@ -1876,7 +1878,7 @@ struct rt6_info *rt6_get_dflt_router(const struct in6_addr *addr, struct net_dev
struct fib6_table *table;
table = fib6_get_table(dev_net(dev), RT6_TABLE_DFLT);
- if (table == NULL)
+ if (!table)
return NULL;
write_lock_bh(&table->tb6_lock);
@@ -1921,7 +1923,7 @@ void rt6_purge_dflt_routers(struct net *net)
/* NOTE: Keep consistent with rt6_get_dflt_router */
table = fib6_get_table(net, RT6_TABLE_DFLT);
- if (table == NULL)
+ if (!table)
return;
restart:
@@ -2061,7 +2063,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
net->loopback_dev, 0);
struct neighbour *neigh;
- if (rt == NULL) {
+ if (!rt) {
if (net_ratelimit())
pr_warning("IPv6: Maximum number of routes reached,"
" consider increasing route/max_size.\n");
@@ -2081,7 +2083,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
rt->rt6i_flags |= RTF_ANYCAST;
else
rt->rt6i_flags |= RTF_LOCAL;
- neigh = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
+ neigh = __neigh_lookup_errno(&nd_tbl, &rt->rt6i_gateway, rt->rt6i_dev);
if (IS_ERR(neigh)) {
dst_free(&rt->dst);
@@ -2127,7 +2129,7 @@ static int fib6_remove_prefsrc(struct rt6_info *rt, void *arg)
struct net *net = ((struct arg_dev_net_ip *)arg)->net;
struct in6_addr *addr = ((struct arg_dev_net_ip *)arg)->addr;
- if (((void *)rt->rt6i_dev == dev || dev == NULL) &&
+ if (((void *)rt->rt6i_dev == dev || !dev) &&
rt != net->ipv6.ip6_null_entry &&
ipv6_addr_equal(addr, &rt->rt6i_prefsrc.addr)) {
/* remove prefsrc entry */
@@ -2157,7 +2159,7 @@ static int fib6_ifdown(struct rt6_info *rt, void *arg)
const struct arg_dev_net *adn = arg;
const struct net_device *dev = adn->dev;
- if ((rt->rt6i_dev == dev || dev == NULL) &&
+ if ((rt->rt6i_dev == dev || !dev) &&
rt != adn->net->ipv6.ip6_null_entry) {
RT6_TRACE("deleted by ifdown %p\n", rt);
return -1;
@@ -2194,7 +2196,7 @@ static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg)
*/
idev = __in6_dev_get(arg->dev);
- if (idev == NULL)
+ if (!idev)
return 0;
/* For administrative MTU increase, there is no way to discover
@@ -2374,7 +2376,7 @@ static int rt6_fill_node(struct net *net,
}
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*rtm), flags);
- if (nlh == NULL)
+ if (!nlh)
return -EMSGSIZE;
rtm = nlmsg_data(nlh);
@@ -2388,25 +2390,25 @@ static int rt6_fill_node(struct net *net,
table = RT6_TABLE_UNSPEC;
rtm->rtm_table = table;
NLA_PUT_U32(skb, RTA_TABLE, table);
- if (rt->rt6i_flags&RTF_REJECT)
+ if (rt->rt6i_flags & RTF_REJECT)
rtm->rtm_type = RTN_UNREACHABLE;
- else if (rt->rt6i_flags&RTF_LOCAL)
+ else if (rt->rt6i_flags & RTF_LOCAL)
rtm->rtm_type = RTN_LOCAL;
- else if (rt->rt6i_dev && (rt->rt6i_dev->flags&IFF_LOOPBACK))
+ else if (rt->rt6i_dev && (rt->rt6i_dev->flags & IFF_LOOPBACK))
rtm->rtm_type = RTN_LOCAL;
else
rtm->rtm_type = RTN_UNICAST;
rtm->rtm_flags = 0;
rtm->rtm_scope = RT_SCOPE_UNIVERSE;
rtm->rtm_protocol = rt->rt6i_protocol;
- if (rt->rt6i_flags&RTF_DYNAMIC)
+ if (rt->rt6i_flags & RTF_DYNAMIC)
rtm->rtm_protocol = RTPROT_REDIRECT;
else if (rt->rt6i_flags & RTF_ADDRCONF)
rtm->rtm_protocol = RTPROT_KERNEL;
- else if (rt->rt6i_flags&RTF_DEFAULT)
+ else if (rt->rt6i_flags & RTF_DEFAULT)
rtm->rtm_protocol = RTPROT_RA;
- if (rt->rt6i_flags&RTF_CACHE)
+ if (rt->rt6i_flags & RTF_CACHE)
rtm->rtm_flags |= RTM_F_CLONED;
if (dst) {
@@ -2546,7 +2548,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
}
skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
- if (skb == NULL) {
+ if (!skb) {
err = -ENOBUFS;
goto errout;
}
@@ -2581,10 +2583,10 @@ void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
int err;
err = -ENOBUFS;
- seq = info->nlh != NULL ? info->nlh->nlmsg_seq : 0;
+ seq = info->nlh ? info->nlh->nlmsg_seq : 0;
skb = nlmsg_new(rt6_nlmsg_size(), gfp_any());
- if (skb == NULL)
+ if (!skb)
goto errout;
err = rt6_fill_node(net, skb, rt, NULL, NULL, 0,
generated by cgit v1.2.3 (git 2.0.4) at 2024-10-08 18:27:18 +0000