Merge nuts.ninka.net:/disk1/davem/BK/network-2.6

into nuts.ninka.net:/disk1/davem/BK/net-2.6

drivers/net/Space.c

@@ -350,7 +350,7 @@ static int __init ethif_probe(int unit)
 	 * Backwards compatibility - historically an I/O base of 1 was 
 	 * used to indicate not to probe for this ethN interface 
 	 */
-	if (dev->base_addr == 1) {
+	if (__dev_get_by_name(dev->name) || dev->base_addr == 1) {
 		free_netdev(dev);
 		return -ENXIO;
 	}

include/linux/ip.h

@@ -159,7 +159,10 @@ struct inet_sock {
 	struct inet_opt   inet;
 };
 
-#define inet_sk(__sk) (&((struct inet_sock *)__sk)->inet)
+static inline struct inet_opt * inet_sk(const struct sock *__sk)
+{
+	return &((struct inet_sock *)__sk)->inet;
+}
 
 #endif
 

include/linux/ipv6.h

@@ -270,8 +270,15 @@ struct tcp6_sock {
 	struct ipv6_pinfo inet6;
 };
 
-#define inet6_sk(__sk) ((struct raw6_sock *)__sk)->pinet6
-#define raw6_sk(__sk) (&((struct raw6_sock *)__sk)->raw6)
+static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
+{
+	return ((struct raw6_sock *)__sk)->pinet6;
+}
+
+static inline struct raw6_opt * raw6_sk(const struct sock *__sk)
+{
+	return &((struct raw6_sock *)__sk)->raw6;
+}
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 #define __ipv6_only_sock(sk)	(inet6_sk(sk)->ipv6only)

include/linux/netdevice.h

@@ -634,7 +634,7 @@ static inline void dev_kfree_skb_irq(struct sk_buff *skb)
  */
 static inline void dev_kfree_skb_any(struct sk_buff *skb)
 {
-	if (in_irq())
+	if (in_irq() || irqs_disabled())
 		dev_kfree_skb_irq(skb);
 	else
 		dev_kfree_skb(skb);

include/linux/skbuff.h

@@ -1132,7 +1132,7 @@ static inline struct sk_buff *skb_padto(struct sk_buff *skb, unsigned int len)
  *	is returned and the old skb data released.
  */
 extern int __skb_linearize(struct sk_buff *skb, int gfp);
-static inline int __deprecated skb_linearize(struct sk_buff *skb, int gfp)
+static inline int skb_linearize(struct sk_buff *skb, int gfp)
 {
 	return __skb_linearize(skb, gfp);
 }

include/linux/udp.h

@@ -60,7 +60,10 @@ struct udp_sock {
 	struct udp_opt	  udp;
 };
 
-#define udp_sk(__sk) (&((struct udp_sock *)__sk)->udp)
+static inline struct udp_opt * udp_sk(const struct sock *__sk)
+{
+	return &((struct udp_sock *)__sk)->udp;
+}
 
 #endif
 

include/net/ipv6.h

@@ -329,13 +329,6 @@ extern int			ip6_nd_hdr(struct sock *sk,
 					   struct in6_addr *daddr,
 					   int proto, int len);
 
-extern int			ip6_build_xmit(struct sock *sk,
-					       inet_getfrag_t getfrag,
-					       const void *data,
-					       struct flowi *fl,
-					       unsigned length,
-					       struct ipv6_txoptions *opt,
-					       int hlimit, int flags);
 extern int			ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
 
 extern int			ip6_append_data(struct sock *sk,

include/net/irda/ircomm_tty.h

@@ -52,6 +52,11 @@
 /* Same for payload size. See qos.c for the smallest max data size */
 #define IRCOMM_TTY_DATA_UNINITIALISED	(64 - IRCOMM_TTY_HDR_UNINITIALISED)
 
+/* Those are really defined in include/linux/serial.h - Jean II */
+#define ASYNC_B_INITIALIZED	31	/* Serial port was initialized */
+#define ASYNC_B_NORMAL_ACTIVE	29	/* Normal device is active */
+#define ASYNC_B_CLOSING		27	/* Serial port is closing */
+
 /*
  * IrCOMM TTY driver state
  */
@@ -75,7 +80,7 @@ struct ircomm_tty_cb {
 	LOCAL_FLOW flow;          /* IrTTP flow status */
 
 	int line;
-	__u32 flags;
+	volatile unsigned long flags;
 
 	__u8 dlsap_sel;
 	__u8 slsap_sel;

net/decnet/af_decnet.c

@@ -2376,17 +2376,17 @@ static int __init decnet_init(void)
 
 	dn_register_sysctl();
 
-	/*
-	 * Prevent DECnet module unloading until its fixed properly.
-	 * Requires an audit of the code to check for memory leaks and
-	 * initialisation problems etc.
-	 */
-	try_module_get(THIS_MODULE);
-
 	return 0;
 
 }
+module_init(decnet_init);
 
+/*
+ * Prevent DECnet module unloading until its fixed properly.
+ * Requires an audit of the code to check for memory leaks and
+ * initialisation problems etc.
+ */
+#if 0
 static void __exit decnet_exit(void)
 {
 	sock_unregister(AF_DECnet);
@@ -2405,6 +2405,5 @@ static void __exit decnet_exit(void)
 
 	kmem_cache_destroy(dn_sk_cachep);
 }
-
-module_init(decnet_init);
 module_exit(decnet_exit);
+#endif

net/ipv6/ip6_output.c

@@ -304,422 +304,6 @@ int ip6_nd_hdr(struct sock *sk, struct sk_buff *skb, struct net_device *dev,
 	return 0;
 }
 
-static struct ipv6hdr * ip6_bld_1(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
-				  int hlimit, unsigned pktlength)
-{
-	struct ipv6hdr *hdr;
-	
-	skb->nh.raw = skb_put(skb, sizeof(struct ipv6hdr));
-	hdr = skb->nh.ipv6h;
-	
-	*(u32*)hdr = fl->fl6_flowlabel | htonl(0x60000000);
-
-	hdr->payload_len = htons(pktlength - sizeof(struct ipv6hdr));
-	hdr->hop_limit = hlimit;
-	hdr->nexthdr = fl->proto;
-
-	ipv6_addr_copy(&hdr->saddr, &fl->fl6_src);
-	ipv6_addr_copy(&hdr->daddr, &fl->fl6_dst);
-	return hdr;
-}
-
-static __inline__ u8 * ipv6_build_fraghdr(struct sk_buff *skb, u8* prev_hdr, unsigned offset)
-{
-	struct frag_hdr *fhdr;
-
-	fhdr = (struct frag_hdr *) skb_put(skb, sizeof(struct frag_hdr));
-
-	fhdr->nexthdr  = *prev_hdr;
-	*prev_hdr = NEXTHDR_FRAGMENT;
-	prev_hdr = &fhdr->nexthdr;
-
-	fhdr->reserved = 0;
-	fhdr->frag_off = htons(offset);
-	ipv6_select_ident(skb, fhdr);
-	return &fhdr->nexthdr;
-}
-
-static int ip6_frag_xmit(struct sock *sk, inet_getfrag_t getfrag,
-			 const void *data, struct dst_entry *dst,
-			 struct flowi *fl, struct ipv6_txoptions *opt,
-			 struct in6_addr *final_dst,
-			 int hlimit, int flags, unsigned length, int mtu)
-{
-	struct ipv6hdr *hdr;
-	struct sk_buff *last_skb;
-	u8 *prev_hdr;
-	int unfrag_len;
-	int frag_len;
-	int last_len;
-	int nfrags;
-	int fhdr_dist;
-	int frag_off;
-	int data_off;
-	int err;
-
-	/*
-	 *	Fragmentation
-	 *
-	 *	Extension header order:
-	 *	Hop-by-hop -> Dest0 -> Routing -> Fragment -> Auth -> Dest1 -> rest (...)
-	 *	
-	 *	We must build the non-fragmented part that
-	 *	will be in every packet... this also means
-	 *	that other extension headers (Dest, Auth, etc)
-	 *	must be considered in the data to be fragmented
-	 */
-
-	unfrag_len = sizeof(struct ipv6hdr) + sizeof(struct frag_hdr);
-	last_len = length;
-
-	if (opt) {
-		unfrag_len += opt->opt_nflen;
-		last_len += opt->opt_flen;
-	}
-
-	/*
-	 *	Length of fragmented part on every packet but 
-	 *	the last must be an:
-	 *	"integer multiple of 8 octets".
-	 */
-
-	frag_len = (mtu - unfrag_len) & ~0x7;
-
-	/* Unfragmentable part exceeds mtu. */
-	if (frag_len <= 0) {
-		ipv6_local_error(sk, EMSGSIZE, fl, mtu);
-		return -EMSGSIZE;
-	}
-
-	nfrags = last_len / frag_len;
-
-	/*
-	 *	We must send from end to start because of 
-	 *	UDP/ICMP checksums. We do a funny trick:
-	 *	fill the last skb first with the fixed
-	 *	header (and its data) and then use it
-	 *	to create the following segments and send it
-	 *	in the end. If the peer is checking the M_flag
-	 *	to trigger the reassembly code then this 
-	 *	might be a good idea.
-	 */
-
-	frag_off = nfrags * frag_len;
-	last_len -= frag_off;
-
-	if (last_len == 0) {
-		last_len = frag_len;
-		frag_off -= frag_len;
-		nfrags--;
-	}
-	data_off = frag_off;
-
-	/* And it is implementation problem: for now we assume, that
-	   all the exthdrs will fit to the first fragment.
-	 */
-	if (opt) {
-		if (frag_len < opt->opt_flen) {
-			ipv6_local_error(sk, EMSGSIZE, fl, mtu);
-			return -EMSGSIZE;
-		}
-		data_off = frag_off - opt->opt_flen;
-	}
-
-	if (flags&MSG_PROBE)
-		return 0;
-
-	last_skb = sock_alloc_send_skb(sk, unfrag_len + frag_len +
-				       dst->dev->hard_header_len + 15,
-				       flags & MSG_DONTWAIT, &err);
-
-	if (last_skb == NULL)
-		return err;
-
-	last_skb->dst = dst_clone(dst);
-
-	skb_reserve(last_skb, (dst->dev->hard_header_len + 15) & ~15);
-
-	hdr = ip6_bld_1(sk, last_skb, fl, hlimit, frag_len+unfrag_len);
-	prev_hdr = &hdr->nexthdr;
-
-	if (opt && opt->opt_nflen)
-		prev_hdr = ipv6_build_nfrag_opts(last_skb, prev_hdr, opt, final_dst, 0);
-
-	prev_hdr = ipv6_build_fraghdr(last_skb, prev_hdr, frag_off);
-	fhdr_dist = prev_hdr - last_skb->data;
-
-	err = getfrag(data, &hdr->saddr, last_skb->tail, data_off, last_len);
-
-	if (!err) {
-		while (nfrags--) {
-			struct sk_buff *skb;
-			
-			struct frag_hdr *fhdr2;
-				
-			skb = skb_copy(last_skb, sk->sk_allocation);
-
-			if (skb == NULL) {
-				IP6_INC_STATS(Ip6FragFails);
-				kfree_skb(last_skb);
-				return -ENOMEM;
-			}
-
-			frag_off -= frag_len;
-			data_off -= frag_len;
-
-			fhdr2 = (struct frag_hdr *) (skb->data + fhdr_dist);
-
-			/* more flag on */
-			fhdr2->frag_off = htons(frag_off | 1);
-
-			/* Write fragmentable exthdrs to the first chunk */
-			if (nfrags == 0 && opt && opt->opt_flen) {
-				ipv6_build_frag_opts(skb, &fhdr2->nexthdr, opt);
-				frag_len -= opt->opt_flen;
-				data_off = 0;
-			}
-
-			err = getfrag(data, &hdr->saddr,skb_put(skb, frag_len),
-				      data_off, frag_len);
-
-			if (err) {
-				kfree_skb(skb);
-				break;
-			}
-
-			IP6_INC_STATS(Ip6FragCreates);
-			IP6_INC_STATS(Ip6OutRequests);
-			err = NF_HOOK(PF_INET6,NF_IP6_LOCAL_OUT, skb, NULL, dst->dev, ip6_maybe_reroute);
-			if (err) {
-				kfree_skb(last_skb);
-				return err;
-			}
-		}
-	}
-
-	if (err) {
-		IP6_INC_STATS(Ip6FragFails);
-		kfree_skb(last_skb);
-		return -EFAULT;
-	}
-
-	hdr->payload_len = htons(unfrag_len + last_len - sizeof(struct ipv6hdr));
-
-	/*
-	 *	update last_skb to reflect the getfrag we did
-	 *	on start.
-	 */
-
-	skb_put(last_skb, last_len);
-
-	IP6_INC_STATS(Ip6FragCreates);
-	IP6_INC_STATS(Ip6FragOKs);
-	IP6_INC_STATS(Ip6OutRequests);
-	return NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, last_skb, NULL,dst->dev, ip6_maybe_reroute);
-}
-
-int ip6_build_xmit(struct sock *sk, inet_getfrag_t getfrag, const void *data,
-		   struct flowi *fl, unsigned length,
-		   struct ipv6_txoptions *opt, int hlimit, int flags)
-{
-	struct inet_opt *inet = inet_sk(sk);
-	struct ipv6_pinfo *np = inet6_sk(sk);
-	struct in6_addr final_dst_buf, *final_dst = NULL;
-	struct dst_entry *dst;
-	int err = 0;
-	unsigned int pktlength, jumbolen, mtu;
-
-	if (opt && opt->srcrt) {
-		struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt;
-		ipv6_addr_copy(&final_dst_buf, &fl->fl6_dst);
-		final_dst = &final_dst_buf;
-		ipv6_addr_copy(&fl->fl6_dst, rt0->addr);
-	}
-
-	if (!fl->oif && ipv6_addr_is_multicast(&fl->fl6_dst))
-		fl->oif = np->mcast_oif;
-
-	dst = __sk_dst_check(sk, np->dst_cookie);
-	if (dst) {
-		struct rt6_info *rt = (struct rt6_info*)dst;
-
-			/* Yes, checking route validity in not connected
-			   case is not very simple. Take into account,
-			   that we do not support routing by source, TOS,
-			   and MSG_DONTROUTE 		--ANK (980726)
-
-			   1. If route was host route, check that
-			      cached destination is current.
-			      If it is network route, we still may
-			      check its validity using saved pointer
-			      to the last used address: daddr_cache.
-			      We do not want to save whole address now,
-			      (because main consumer of this service
-			       is tcp, which has not this problem),
-			      so that the last trick works only on connected
-			      sockets.
-			   2. oif also should be the same.
-			 */
-
-		if (((rt->rt6i_dst.plen != 128 ||
-		      ipv6_addr_cmp(&fl->fl6_dst, &rt->rt6i_dst.addr))
-		     && (np->daddr_cache == NULL ||
-			 ipv6_addr_cmp(&fl->fl6_dst, np->daddr_cache)))
-		    || (fl->oif && fl->oif != dst->dev->ifindex)) {
-			dst = NULL;
-		} else
-			dst_hold(dst);
-	}
-
-	if (dst == NULL)
-		dst = ip6_route_output(sk, fl);
-
-	if (dst->error) {
-		IP6_INC_STATS(Ip6OutNoRoutes);
-		dst_release(dst);
-		return -ENETUNREACH;
-	}
-
-	if (ipv6_addr_any(&fl->fl6_src)) {
-		err = ipv6_get_saddr(dst, &fl->fl6_dst, &fl->fl6_src);
-
-		if (err) {
-#if IP6_DEBUG >= 2
-			printk(KERN_DEBUG "ip6_build_xmit: "
-			       "no available source address\n");
-#endif
-			goto out;
-		}
-	}
-	pktlength = length;
-
-        if (dst) {
-		if ((err = xfrm_lookup(&dst, fl, sk, 0)) < 0) {
-			dst_release(dst);	
-			return -ENETUNREACH;
-		}
-        }
-
-	if (hlimit < 0) {
-		if (ipv6_addr_is_multicast(&fl->fl6_dst))
-			hlimit = np->mcast_hops;
-		else
-			hlimit = np->hop_limit;
-		if (hlimit < 0)
-			hlimit = dst_metric(dst, RTAX_HOPLIMIT);
-	}
-
-	jumbolen = 0;
-
-	if (!inet->hdrincl) {
-		pktlength += sizeof(struct ipv6hdr);
-		if (opt)
-			pktlength += opt->opt_flen + opt->opt_nflen;
-
-		if (pktlength > sizeof(struct ipv6hdr) + IPV6_MAXPLEN) {
-			/* Jumbo datagram.
-			   It is assumed, that in the case of hdrincl
-			   jumbo option is supplied by user.
-			 */
-			pktlength += 8;
-			jumbolen = pktlength - sizeof(struct ipv6hdr);
-		}
-	}
-
-	mtu = dst_pmtu(dst);
-	if (np->frag_size < mtu) {
-		if (np->frag_size)
-			mtu = np->frag_size;
-		else if (np->pmtudisc == IPV6_PMTUDISC_DONT)
-			mtu = IPV6_MIN_MTU;
-	}
-
-	/* Critical arithmetic overflow check.
-	   FIXME: may gcc optimize it out? --ANK (980726)
-	 */
-	if (pktlength < length) {
-		ipv6_local_error(sk, EMSGSIZE, fl, mtu);
-		err = -EMSGSIZE;
-		goto out;
-	}
-
-	if (flags&MSG_CONFIRM)
-		dst_confirm(dst);
-
-	if (pktlength <= mtu) {
-		struct sk_buff *skb;
-		struct ipv6hdr *hdr;
-		struct net_device *dev = dst->dev;
-
-		err = 0;
-		if (flags&MSG_PROBE)
-			goto out;
-		/* alloc skb with mtu as we do in the IPv4 stack for IPsec */
-		skb = sock_alloc_send_skb(sk, mtu + LL_RESERVED_SPACE(dev),
-					  flags & MSG_DONTWAIT, &err);
-
-		if (skb == NULL) {
-			IP6_INC_STATS(Ip6OutDiscards);
-			goto out;
-		}
-
-		skb->dst = dst_clone(dst);
-
-		skb_reserve(skb, (dev->hard_header_len + 15) & ~15);
-
-		hdr = (struct ipv6hdr *) skb->tail;
-		skb->nh.ipv6h = hdr;
-
-		if (!inet->hdrincl) {
-			ip6_bld_1(sk, skb, fl, hlimit,
-				  jumbolen ? sizeof(struct ipv6hdr) : pktlength);
-
-			if (opt || jumbolen) {
-				u8 *prev_hdr = &hdr->nexthdr;
-				prev_hdr = ipv6_build_nfrag_opts(skb, prev_hdr, opt, final_dst, jumbolen);
-				if (opt && opt->opt_flen)
-					ipv6_build_frag_opts(skb, prev_hdr, opt);
-			}
-		}
-
-		skb_put(skb, length);
-		err = getfrag(data, &hdr->saddr,
-			      ((char *) hdr) + (pktlength - length),
-			      0, length);
-		if (!opt || !opt->dst1opt)
-			skb->h.raw = ((char *) hdr) + (pktlength - length);
-
-		if (!err) {
-			IP6_INC_STATS(Ip6OutRequests);
-			err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, dst->dev, ip6_maybe_reroute);
-		} else {
-			err = -EFAULT;
-			kfree_skb(skb);
-		}
-	} else {
-		if (inet->hdrincl || jumbolen ||
-		    np->pmtudisc == IPV6_PMTUDISC_DO) {
-			ipv6_local_error(sk, EMSGSIZE, fl, mtu);
-			err = -EMSGSIZE;
-			goto out;
-		}
-
-		err = ip6_frag_xmit(sk, getfrag, data, dst, fl, opt, final_dst, hlimit,
-				    flags, length, mtu);
-	}
-
-	/*
-	 *	cleanup
-	 */
-out:
-	ip6_dst_store(sk, dst,
-		      !ipv6_addr_cmp(&fl->fl6_dst, &np->daddr) ?
-		      &np->daddr : NULL);
-	if (err > 0)
-		err = np->recverr ? net_xmit_errno(err) : 0;
-	return err;
-}
-
 int ip6_call_ra_chain(struct sk_buff *skb, int sel)
 {
 	struct ip6_ra_chain *ra;

net/irda/ircomm/ircomm_tty.c

@@ -181,15 +181,15 @@ void __exit ircomm_tty_cleanup(void)
 static int ircomm_tty_startup(struct ircomm_tty_cb *self)
 {
 	notify_t notify;
-	int ret;
+	int ret = -ENODEV;
 
 	IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
 
 	ASSERT(self != NULL, return -1;);
 	ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
 
-	/* Already open */
-	if (self->flags & ASYNC_INITIALIZED) {
+	/* Check if already open */
+	if (test_and_set_bit(ASYNC_B_INITIALIZED, &self->flags)) {
 		IRDA_DEBUG(2, "%s(), already open so break out!\n", __FUNCTION__ );
 		return 0;
 	}
@@ -213,7 +213,7 @@ static int ircomm_tty_startup(struct ircomm_tty_cb *self)
 					   self->line);
 	}
 	if (!self->ircomm)
-		return -ENODEV;
+		goto err;
 
 	self->slsap_sel = self->ircomm->slsap_sel;
 
@@ -221,12 +221,13 @@ static int ircomm_tty_startup(struct ircomm_tty_cb *self)
 	ret = ircomm_tty_attach_cable(self);
 	if (ret < 0) {
 		ERROR("%s(), error attaching cable!\n", __FUNCTION__);
-		return ret;
+		goto err;
 	}
 
-	self->flags |= ASYNC_INITIALIZED;
-
 	return 0;
+err:
+	clear_bit(ASYNC_B_INITIALIZED, &self->flags);
+	return ret;
 }
 
 /*
@@ -299,7 +300,8 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
 		
 		current->state = TASK_INTERRUPTIBLE;
 		
-		if (tty_hung_up_p(filp) || !(self->flags & ASYNC_INITIALIZED)){
+		if (tty_hung_up_p(filp) ||
+		    !test_bit(ASYNC_B_INITIALIZED, &self->flags)) {
 			retval = (self->flags & ASYNC_HUP_NOTIFY) ?
 					-EAGAIN : -ERESTARTSYS;
 			break;
@@ -310,7 +312,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
 		 * specified, we cannot return before the IrCOMM link is
 		 * ready 
 		 */
- 		if (!(self->flags & ASYNC_CLOSING) &&
+ 		if (!test_bit(ASYNC_B_CLOSING, &self->flags) &&
  		    (do_clocal || (self->settings.dce & IRCOMM_CD)) &&
 		    self->state == IRCOMM_TTY_READY)
 		{
@@ -425,7 +427,7 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
 	 * If the port is the middle of closing, bail out now
 	 */
 	if (tty_hung_up_p(filp) ||
-	    (self->flags & ASYNC_CLOSING)) {
+	    test_bit(ASYNC_B_CLOSING, &self->flags)) {
 
 		/* Hm, why are we blocking on ASYNC_CLOSING if we
 		 * do return -EAGAIN/-ERESTARTSYS below anyway?
@@ -435,7 +437,7 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
 		 * probably better sleep uninterruptible?
 		 */
 
-		if (wait_event_interruptible(self->close_wait, !(self->flags&ASYNC_CLOSING))) {
+		if (wait_event_interruptible(self->close_wait, !test_bit(ASYNC_B_CLOSING, &self->flags))) {
 			WARNING("%s - got signal while blocking on ASYNC_CLOSING!\n",
 				__FUNCTION__);
 			return -ERESTARTSYS;
@@ -530,11 +532,13 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)
 		IRDA_DEBUG(0, "%s(), open count > 0\n", __FUNCTION__ );
 		return;
 	}
-	self->flags |= ASYNC_CLOSING;
+
+	/* Hum... Should be test_and_set_bit ??? - Jean II */
+	set_bit(ASYNC_B_CLOSING, &self->flags);
 
 	/* We need to unlock here (we were unlocking at the end of this
 	 * function), because tty_wait_until_sent() may schedule.
-	 * I don't know if the rest should be locked somehow,
+	 * I don't know if the rest should be protected somehow,
 	 * so someone should check. - Jean II */
 	spin_unlock_irqrestore(&self->spinlock, flags);
 
@@ -979,9 +983,11 @@ static void ircomm_tty_shutdown(struct ircomm_tty_cb *self)
 
 	IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
 
-	if (!(self->flags & ASYNC_INITIALIZED))
+	if (!test_and_clear_bit(ASYNC_B_INITIALIZED, &self->flags))
 		return;
 
+	ircomm_tty_detach_cable(self);
+
 	spin_lock_irqsave(&self->spinlock, flags);
 
 	del_timer(&self->watchdog_timer);
@@ -998,13 +1004,10 @@ static void ircomm_tty_shutdown(struct ircomm_tty_cb *self)
 		self->tx_skb = NULL;
 	}
 
-	ircomm_tty_detach_cable(self);
-
 	if (self->ircomm) {
 		ircomm_close(self->ircomm);
 		self->ircomm = NULL;
 	}
-	self->flags &= ~ASYNC_INITIALIZED;
 
 	spin_unlock_irqrestore(&self->spinlock, flags);
 }

net/packet/af_packet.c

@@ -64,6 +64,7 @@
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/poll.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -1767,23 +1768,47 @@ static struct notifier_block packet_netdev_notifier = {
 };
 
 #ifdef CONFIG_PROC_FS
-static int packet_read_proc(char *buffer, char **start, off_t offset,
-			     int length, int *eof, void *data)
+static inline struct sock *packet_seq_idx(loff_t off)
 {
-	off_t pos=0;
-	off_t begin=0;
-	int len=0;
 	struct sock *s;
 	struct hlist_node *node;
 
-	len+= sprintf(buffer,"sk       RefCnt Type Proto  Iface R Rmem   User   Inode\n");
+	sk_for_each(s, node, &packet_sklist) {
+		if (!off--)
+			return s;
+	}
+	return NULL;
+}
 
+static void *packet_seq_start(struct seq_file *seq, loff_t *pos)
+{
 	read_lock(&packet_sklist_lock);
+	return *pos ? packet_seq_idx(*pos - 1) : SEQ_START_TOKEN;
+}
 
-	sk_for_each(s, node, &packet_sklist) {
-		struct packet_opt *po = pkt_sk(s);
+static void *packet_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	++*pos;
+	return  (v == SEQ_START_TOKEN) 
+		? sk_head(&packet_sklist) 
+		: sk_next((struct sock*)v) ;
+}
 
-		len+=sprintf(buffer+len,"%p %-6d %-4d %04x   %-5d %1d %-6u %-6u %-6lu",
+static void packet_seq_stop(struct seq_file *seq, void *v)
+{
+	read_unlock(&packet_sklist_lock);		
+}
+
+static int packet_seq_show(struct seq_file *seq, void *v) 
+{
+	if (v == SEQ_START_TOKEN)
+		seq_puts(seq, "sk       RefCnt Type Proto  Iface R Rmem   User   Inode\n");
+	else {
+		struct sock *s = v;
+		const struct packet_opt *po = pkt_sk(s);
+
+		seq_printf(seq,
+			   "%p %-6d %-4d %04x   %-5d %1d %-6u %-6u %-6lu\n",
 			   s,
 			   atomic_read(&s->sk_refcnt),
 			   s->sk_type,
@@ -1792,36 +1817,37 @@ static int packet_read_proc(char *buffer, char **start, off_t offset,
 			   po->running,
 			   atomic_read(&s->sk_rmem_alloc),
 			   sock_i_uid(s),
-			     sock_i_ino(s)
-			     );
+			   sock_i_ino(s) );
+	}
 
-		buffer[len++]='\n';
+	return 0;
+}
 
-		pos=begin+len;
-		if(pos<offset) {
-			len=0;
-			begin=pos;
-		}
-		if(pos>offset+length)
-			goto done;
-	}
-	*eof = 1;
+static struct seq_operations packet_seq_ops = {
+	.start	= packet_seq_start,
+	.next	= packet_seq_next,
+	.stop	= packet_seq_stop,
+	.show	= packet_seq_show,
+};
 
-done:
-	read_unlock(&packet_sklist_lock);
-	*start=buffer+(offset-begin);
-	len-=(offset-begin);
-	if(len>length)
-		len=length;
-	if(len<0)
-		len=0;
-	return len;
+static int packet_seq_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &packet_seq_ops);
 }
+
+static struct file_operations packet_seq_fops = {
+	.owner		= THIS_MODULE,
+	.open		= packet_seq_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
 #endif
 
 static void __exit packet_exit(void)
 {
-	remove_proc_entry("net/packet", 0);
+	proc_net_remove("packet");
 	unregister_netdevice_notifier(&packet_netdev_notifier);
 	sock_unregister(PF_PACKET);
 	return;
@@ -1831,9 +1857,8 @@ static int __init packet_init(void)
 {
 	sock_register(&packet_family_ops);
 	register_netdevice_notifier(&packet_netdev_notifier);
-#ifdef CONFIG_PROC_FS
-	create_proc_read_entry("net/packet", 0, 0, packet_read_proc, NULL);
-#endif
+	proc_net_fops_create("packet", 0, &packet_seq_fops);
+
 	return 0;
 }