inet: frags: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Alexander Aring <alex.aring@gmail.com>
Cc: Stefan Schmidt <stefan@osg.samsung.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: Florian Westphal <fw@strlen.de>
Cc: linux-wpan@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: netfilter-devel@vger.kernel.org
Cc: coreteam@netfilter.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Stefan Schmidt <stefan@osg.samsung.com> # for ieee802154
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index fc59e07..c695807 100644 (file)
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -95,7 +95,7 @@ struct inet_frags {
        void                    (*constructor)(struct inet_frag_queue *q,
                                               const void *arg);
        void                    (*destructor)(struct inet_frag_queue *);
-       void                    (*frag_expire)(unsigned long data);
+       void                    (*frag_expire)(struct timer_list *t);
        struct kmem_cache       *frags_cachep;
        const char              *frags_cache_name;
 };

diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
index f85b08b..85bf86a 100644 (file)
--- a/net/ieee802154/6lowpan/reassembly.c
+++ b/net/ieee802154/6lowpan/reassembly.c
@@ -80,12 +80,13 @@ static void lowpan_frag_init(struct inet_frag_queue *q, const void *a)
        fq->daddr = *arg->dst;
 }
 
-static void lowpan_frag_expire(unsigned long data)
+static void lowpan_frag_expire(struct timer_list *t)
 {
+       struct inet_frag_queue *frag = from_timer(frag, t, timer);
        struct frag_queue *fq;
        struct net *net;
 
-       fq = container_of((struct inet_frag_queue *)data, struct frag_queue, q);
+       fq = container_of(frag, struct frag_queue, q);
        net = container_of(fq->q.net, struct net, ieee802154_lowpan.frags);
 
        spin_lock(&fq->q.lock);

diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index af74d04..7f3ef5c 100644 (file)
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -147,7 +147,7 @@ inet_evict_bucket(struct inet_frags *f, struct inet_frag_bucket *hb)
        spin_unlock(&hb->chain_lock);
 
        hlist_for_each_entry_safe(fq, n, &expired, list_evictor)
-               f->frag_expire((unsigned long) fq);
+               f->frag_expire(&fq->timer);
 
        return evicted;
 }
@@ -366,7 +366,7 @@ static struct inet_frag_queue *inet_frag_alloc(struct netns_frags *nf,
        f->constructor(q, arg);
        add_frag_mem_limit(nf, f->qsize);
 
-       setup_timer(&q->timer, f->frag_expire, (unsigned long)q);
+       timer_setup(&q->timer, f->frag_expire, 0);
        spin_lock_init(&q->lock);
        refcount_set(&q->refcnt, 1);
 

diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 46408c2..9215654 100644 (file)
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -190,12 +190,13 @@ static bool frag_expire_skip_icmp(u32 user)
 /*
  * Oops, a fragment queue timed out.  Kill it and send an ICMP reply.
  */
-static void ip_expire(unsigned long arg)
+static void ip_expire(struct timer_list *t)
 {
+       struct inet_frag_queue *frag = from_timer(frag, t, timer);
        struct ipq *qp;
        struct net *net;
 
-       qp = container_of((struct inet_frag_queue *) arg, struct ipq, q);
+       qp = container_of(frag, struct ipq, q);
        net = container_of(qp->q.net, struct net, ipv4.frags);
 
        rcu_read_lock();

diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index b263bf3..977d890 100644 (file)
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -169,12 +169,13 @@ static unsigned int nf_hashfn(const struct inet_frag_queue *q)
        return nf_hash_frag(nq->id, &nq->saddr, &nq->daddr);
 }
 
-static void nf_ct_frag6_expire(unsigned long data)
+static void nf_ct_frag6_expire(struct timer_list *t)
 {
+       struct inet_frag_queue *frag = from_timer(frag, t, timer);
        struct frag_queue *fq;
        struct net *net;
 
-       fq = container_of((struct inet_frag_queue *)data, struct frag_queue, q);
+       fq = container_of(frag, struct frag_queue, q);
        net = container_of(fq->q.net, struct net, nf_frag.frags);
 
        ip6_expire_frag_queue(net, fq, &nf_frags);

diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 846012e..afbc000 100644 (file)
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -170,12 +170,13 @@ out:
 }
 EXPORT_SYMBOL(ip6_expire_frag_queue);
 
-static void ip6_frag_expire(unsigned long data)
+static void ip6_frag_expire(struct timer_list *t)
 {
+       struct inet_frag_queue *frag = from_timer(frag, t, timer);
        struct frag_queue *fq;
        struct net *net;
 
-       fq = container_of((struct inet_frag_queue *)data, struct frag_queue, q);
+       fq = container_of(frag, struct frag_queue, q);
        net = container_of(fq->q.net, struct net, ipv6.frags);
 
        ip6_expire_frag_queue(net, fq, &ip6_frags);