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* Re: another cleanup patch gone wrong
From: David Miller @ 2010-04-16  3:01 UTC (permalink / raw)
  To: fthain; +Cc: joe, p_gortmaker, netdev, linux-kernel, linux-m68k
In-Reply-To: <alpine.OSX.2.00.1004161214270.271@localhost>

From: Finn Thain <fthain@telegraphics.com.au>
Date: Fri, 16 Apr 2010 12:34:24 +1000 (EST)

> 
> ...but this one was already merged, unfortunately.
> 
>> Use printk_once
>> Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
>> Convert printks without KERN_<level> to pr_info and pr_cont
>> 
>> Signed-off-by: Joe Perches <joe@perches.com>
>> Signed-off-by: David S. Miller <davem@davemloft.net>
>> 
>> 
>> diff --git a/drivers/net/mac8390.c b/drivers/net/mac8390.c
>> index 517cee4..8bd09e2 100644 (file)
>> --- a/drivers/net/mac8390.c
>> +++ b/drivers/net/mac8390.c
>> @@ -17,6 +17,8 @@
>>  /* 2002-12-30: Try to support more cards, some clues from NetBSD driver */
>>  /* 2003-12-26: Make sure Asante cards always work. */
>>  
>> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
>> +
> 
> Why the macro? You only used it once.

It gets expanded internally into all of the pr_*() calls.

> The pr_xxx naming convention belongs to a kernel-wide include file. Is it 
> really a good idea to start repurposing it in .c files?

This is exactly how it can be used, and there is much
precedent for this now.

>> -                       printk("Don't know how to access card memory!\n");
>> +                       pr_info("Don't know how to access card memory!\n");
> 
> No, this is pr_err. The driver sets dev->mem_start expecting it to work, 
> obviously.

It was an unspecified printk() so Joe's conversion is equal
and that's a good way for him to have made these changes.

If we want to mark this as KERN_ERR or whatever, that's entirely
a seperate change.

I think your objections to Joe's changes are completely uncalled
for and his changes were good ones.

^ permalink raw reply

* [net-next-2.6 PATCH 3/3 v2] ipv6: fix the comment of ip6_xmit()
From: Shan Wei @ 2010-04-16  2:48 UTC (permalink / raw)
  To: David Miller; +Cc: netdev@vger.kernel.org


ip6_xmit() is used by upper transport protocol.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
---
 net/ipv6/ip6_output.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 141819f..5129a16 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -181,7 +181,7 @@ int ip6_output(struct sk_buff *skb)
 }
 
 /*
- *	xmit an sk_buff (used by TCP)
+ *	xmit an sk_buff (used by TCP, SCTP and DCCP)
  */
 
 int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
-- 
1.6.3.3

^ permalink raw reply related

* [net-next-2.6 PATCH 2/3 v2] net: replace ipfragok with skb->local_df
From: Shan Wei @ 2010-04-16  2:43 UTC (permalink / raw)
  To: David Miller, Herbert Xu
  Cc: Shan Wei, yinghai.lu, kuznet, pekkas, jmorris,
	yoshfuji@linux-ipv6.org >> YOSHIFUJI Hideaki,
	Patrick McHardy, netdev, dccp, linux-sctp, jchapman, mostrows

As Herbert Xu said: we should be able to simply replace ipfragok
with skb->local_df. commit f88037(sctp: Drop ipfargok in sctp_xmit function)
has droped ipfragok and set local_df value properly.

The patch kills the ipfragok parameter of .queue_xmit().


Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
---
Resend the patches with fixed cc list, no content changes.
---
 include/net/inet6_connection_sock.h |    2 +-
 include/net/inet_connection_sock.h  |    2 +-
 include/net/ip.h                    |    2 +-
 include/net/ipv6.h                  |    3 +--
 net/dccp/ipv6.c                     |    4 ++--
 net/dccp/output.c                   |    2 +-
 net/ipv4/ip_output.c                |    4 ++--
 net/ipv4/tcp_output.c               |    2 +-
 net/ipv6/inet6_connection_sock.c    |    4 ++--
 net/ipv6/ip6_output.c               |    2 +-
 net/ipv6/tcp_ipv6.c                 |    4 ++--
 net/l2tp/l2tp_core.c                |    3 ++-
 net/l2tp/l2tp_ip.c                  |    2 +-
 net/sctp/ipv6.c                     |    2 +-
 net/sctp/protocol.c                 |    2 +-
 15 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/include/net/inet6_connection_sock.h b/include/net/inet6_connection_sock.h
index f13ddc2..aae08f6 100644
--- a/include/net/inet6_connection_sock.h
+++ b/include/net/inet6_connection_sock.h
@@ -38,5 +38,5 @@ extern void inet6_csk_reqsk_queue_hash_add(struct sock *sk,
 
 extern void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
 
-extern int inet6_csk_xmit(struct sk_buff *skb, int ipfragok);
+extern int inet6_csk_xmit(struct sk_buff *skb);
 #endif /* _INET6_CONNECTION_SOCK_H */
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 52c8b8b..b6d3b55 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -36,7 +36,7 @@ struct tcp_congestion_ops;
  * (i.e. things that depend on the address family)
  */
 struct inet_connection_sock_af_ops {
-	int	    (*queue_xmit)(struct sk_buff *skb, int ipfragok);
+	int	    (*queue_xmit)(struct sk_buff *skb);
 	void	    (*send_check)(struct sock *sk, struct sk_buff *skb);
 	int	    (*rebuild_header)(struct sock *sk);
 	int	    (*conn_request)(struct sock *sk, struct sk_buff *skb);
diff --git a/include/net/ip.h b/include/net/ip.h
index 503994a..a84ceb6 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -101,7 +101,7 @@ extern int		ip_do_nat(struct sk_buff *skb);
 extern void		ip_send_check(struct iphdr *ip);
 extern int		__ip_local_out(struct sk_buff *skb);
 extern int		ip_local_out(struct sk_buff *skb);
-extern int		ip_queue_xmit(struct sk_buff *skb, int ipfragok);
+extern int		ip_queue_xmit(struct sk_buff *skb);
 extern void		ip_init(void);
 extern int		ip_append_data(struct sock *sk,
 				       int getfrag(void *from, char *to, int offset, int len,
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 033ddd4..b1d8db9 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -482,8 +482,7 @@ extern int			ip6_rcv_finish(struct sk_buff *skb);
 extern int			ip6_xmit(struct sock *sk,
 					 struct sk_buff *skb,
 					 struct flowi *fl,
-					 struct ipv6_txoptions *opt,
-					 int ipfragok);
+					 struct ipv6_txoptions *opt);
 
 extern int			ip6_nd_hdr(struct sock *sk,
 					   struct sk_buff *skb,
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index ab1ab95..0916988 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -292,7 +292,7 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req,
 							 &ireq6->loc_addr,
 							 &ireq6->rmt_addr);
 		ipv6_addr_copy(&fl.fl6_dst, &ireq6->rmt_addr);
-		err = ip6_xmit(sk, skb, &fl, opt, 0);
+		err = ip6_xmit(sk, skb, &fl, opt);
 		err = net_xmit_eval(err);
 	}
 
@@ -347,7 +347,7 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 	if (!ip6_dst_lookup(ctl_sk, &dst, &fl)) {
 		if (xfrm_lookup(net, &dst, &fl, NULL, 0) >= 0) {
 			skb_dst_set(skb, dst);
-			ip6_xmit(ctl_sk, skb, &fl, NULL, 0);
+			ip6_xmit(ctl_sk, skb, &fl, NULL);
 			DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
 			DCCP_INC_STATS_BH(DCCP_MIB_OUTRSTS);
 			return;
diff --git a/net/dccp/output.c b/net/dccp/output.c
index b8d98e3..e98b65e 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -136,7 +136,7 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 
 		DCCP_INC_STATS(DCCP_MIB_OUTSEGS);
 
-		err = icsk->icsk_af_ops->queue_xmit(skb, 0);
+		err = icsk->icsk_af_ops->queue_xmit(skb);
 		return net_xmit_eval(err);
 	}
 	return -ENOBUFS;
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index c65f18e..512af81 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -311,7 +311,7 @@ int ip_output(struct sk_buff *skb)
 			    !(IPCB(skb)->flags & IPSKB_REROUTED));
 }
 
-int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
+int ip_queue_xmit(struct sk_buff *skb)
 {
 	struct sock *sk = skb->sk;
 	struct inet_sock *inet = inet_sk(sk);
@@ -370,7 +370,7 @@ packet_routed:
 	skb_reset_network_header(skb);
 	iph = ip_hdr(skb);
 	*((__be16 *)iph) = htons((4 << 12) | (5 << 8) | (inet->tos & 0xff));
-	if (ip_dont_fragment(sk, &rt->u.dst) && !ipfragok)
+	if (ip_dont_fragment(sk, &rt->u.dst) && !skb->local_df)
 		iph->frag_off = htons(IP_DF);
 	else
 		iph->frag_off = 0;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e468499..2b7d71f 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -890,7 +890,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 	if (after(tcb->end_seq, tp->snd_nxt) || tcb->seq == tcb->end_seq)
 		TCP_INC_STATS(sock_net(sk), TCP_MIB_OUTSEGS);
 
-	err = icsk->icsk_af_ops->queue_xmit(skb, 0);
+	err = icsk->icsk_af_ops->queue_xmit(skb);
 	if (likely(err <= 0))
 		return err;
 
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 628db24..0c5e3c3 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -178,7 +178,7 @@ struct dst_entry *__inet6_csk_dst_check(struct sock *sk, u32 cookie)
 	return dst;
 }
 
-int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
+int inet6_csk_xmit(struct sk_buff *skb)
 {
 	struct sock *sk = skb->sk;
 	struct inet_sock *inet = inet_sk(sk);
@@ -234,7 +234,7 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
 	/* Restore final destination back after routing done */
 	ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
 
-	return ip6_xmit(sk, skb, &fl, np->opt, 0);
+	return ip6_xmit(sk, skb, &fl, np->opt);
 }
 
 EXPORT_SYMBOL_GPL(inet6_csk_xmit);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index f3a847e..141819f 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -185,7 +185,7 @@ int ip6_output(struct sk_buff *skb)
  */
 
 int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
-	     struct ipv6_txoptions *opt, int ipfragok)
+	     struct ipv6_txoptions *opt)
 {
 	struct net *net = sock_net(sk);
 	struct ipv6_pinfo *np = inet6_sk(sk);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index b429dfd..bd5ef7b 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -509,7 +509,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
 		__tcp_v6_send_check(skb, &treq->loc_addr, &treq->rmt_addr);
 
 		ipv6_addr_copy(&fl.fl6_dst, &treq->rmt_addr);
-		err = ip6_xmit(sk, skb, &fl, opt, 0);
+		err = ip6_xmit(sk, skb, &fl, opt);
 		err = net_xmit_eval(err);
 	}
 
@@ -1071,7 +1071,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
 	if (!ip6_dst_lookup(ctl_sk, &dst, &fl)) {
 		if (xfrm_lookup(net, &dst, &fl, NULL, 0) >= 0) {
 			skb_dst_set(buff, dst);
-			ip6_xmit(ctl_sk, buff, &fl, NULL, 0);
+			ip6_xmit(ctl_sk, buff, &fl, NULL);
 			TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
 			if (rst)
 				TCP_INC_STATS_BH(net, TCP_MIB_OUTRSTS);
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 98dfcce..ecc7aea 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -954,7 +954,8 @@ int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb, size_t dat
 	}
 
 	/* Queue the packet to IP for output */
-	error = ip_queue_xmit(skb, 1);
+	skb->local_df = 1;
+	error = ip_queue_xmit(skb);
 
 	/* Update stats */
 	if (error >= 0) {
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 75bf784..0852512 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -501,7 +501,7 @@ static int l2tp_ip_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
 	skb_dst_set(skb, dst_clone(&rt->u.dst));
 
 	/* Queue the packet to IP for output */
-	rc = ip_queue_xmit(skb, 0);
+	rc = ip_queue_xmit(skb);
 
 error:
 	/* Update stats */
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 14db568..7326891 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -232,7 +232,7 @@ static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport)
 	if (!(transport->param_flags & SPP_PMTUD_ENABLE))
 		skb->local_df = 1;
 
-	return ip6_xmit(sk, skb, &fl, np->opt, 0);
+	return ip6_xmit(sk, skb, &fl, np->opt);
 }
 
 /* Returns the dst cache entry for the given source and destination ip
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index a56f98e..704298f 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -854,7 +854,7 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
 			 IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
 
 	SCTP_INC_STATS(SCTP_MIB_OUTSCTPPACKS);
-	return ip_queue_xmit(skb, 0);
+	return ip_queue_xmit(skb);
 }
 
 static struct sctp_af sctp_af_inet;
-- 
1.6.3.3



^ permalink raw reply related

* [net-next-2.6 PATCH 1/3 v2] ipv6: cancel to setting local_df in ip6_xmit()
From: Shan Wei @ 2010-04-16  2:39 UTC (permalink / raw)
  To: David Miller, Herbert Xu, emils.tantilov
  Cc: kuznet, pekkas, jmorris,
	yoshfuji@linux-ipv6.org >> YOSHIFUJI Hideaki,
	Patrick McHardy, eric.dumazet, netdev@vger.kernel.org, Shan Wei

commit f88037(sctp: Drop ipfargok in sctp_xmit function)
has droped ipfragok and set local_df value properly.

So the change of commit 77e2f1(ipv6: Fix ip6_xmit to 
send fragments if ipfragok is true) is not needed. 
So the patch remove them.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
---
Resend the patches with fixed cc list, no content changes.
---
 net/ipv6/ip6_output.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 16c4391..f3a847e 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -231,10 +231,6 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
 	skb_reset_network_header(skb);
 	hdr = ipv6_hdr(skb);
 
-	/* Allow local fragmentation. */
-	if (ipfragok)
-		skb->local_df = 1;
-
 	/*
 	 *	Fill in the IPv6 header
 	 */
--
1.6.3.3 


^ permalink raw reply related

* another cleanup patch gone wrong
From: Finn Thain @ 2010-04-16  2:34 UTC (permalink / raw)
  To: Joe Perches
  Cc: David S. Miller, Paul Gortmaker, netdev,
	Linux Kernel Mailing List, Linux/m68k


...but this one was already merged, unfortunately.

> Use printk_once
> Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> Convert printks without KERN_<level> to pr_info and pr_cont
> 
> Signed-off-by: Joe Perches <joe@perches.com>
> Signed-off-by: David S. Miller <davem@davemloft.net>
> 
> 
> diff --git a/drivers/net/mac8390.c b/drivers/net/mac8390.c
> index 517cee4..8bd09e2 100644 (file)
> --- a/drivers/net/mac8390.c
> +++ b/drivers/net/mac8390.c
> @@ -17,6 +17,8 @@
>  /* 2002-12-30: Try to support more cards, some clues from NetBSD driver */
>  /* 2003-12-26: Make sure Asante cards always work. */
>  
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +

Why the macro? You only used it once.

The pr_xxx naming convention belongs to a kernel-wide include file. Is it 
really a good idea to start repurposing it in .c files?

> @@ -545,7 +537,7 @@ static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * nd
>         case MAC8390_APPLE:
>                 switch (mac8390_testio(dev->mem_start)) {
>                 case ACCESS_UNKNOWN:
> -                       printk("Don't know how to access card memory!\n");
> +                       pr_info("Don't know how to access card memory!\n");

No, this is pr_err. The driver sets dev->mem_start expecting it to work, 
obviously.

>                         return -ENODEV;
>                         break;
>  

> @@ -633,7 +626,7 @@ static int mac8390_open(struct net_device *dev)
>  {
>         __ei_open(dev);
>         if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) {
> -               printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
> +               pr_info("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
>                 return -EAGAIN;

Same here.

>         }
>         return 0;
> @@ -650,7 +643,7 @@ static void mac8390_no_reset(struct net_device *dev)
>  {
>         ei_status.txing = 0;
>         if (ei_debug > 1)
> -               printk("reset not supported\n");
> +               pr_info("reset not supported\n");

I think you meant pr_debug().

>         return;
>  }
>  
> @@ -658,11 +651,11 @@ static void interlan_reset(struct net_device *dev)
>  {
>         unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq));
>         if (ei_debug > 1)
> -               printk("Need to reset the NS8390 t=%lu...", jiffies);
> +               pr_info("Need to reset the NS8390 t=%lu...", jiffies);

Same here.

Finn

^ permalink raw reply

* Re: [net-next-2.6 PATCH 2/2] net: replace ipfragok with skb->local_df
From: Shan Wei @ 2010-04-16  2:26 UTC (permalink / raw)
  To: Herbert Xu
  Cc: David Miller, yinghai.lu, kuznet, pekkas, jmorris,
	yoshfuji@linux-ipv6.org >> YOSHIFUJI Hideaki,
	Patrick McHardy, netdev@vger.kernel.org, dccp, linux-sctp,
	kleptog, jchapman, mostrows, acme
In-Reply-To: <20100415151926.GA4813@gondor.apana.org.au>

Herbert Xu wrote, at 04/15/2010 11:19 PM:
> On Thu, Apr 15, 2010 at 09:04:49PM +0800, Shan Wei wrote:
>> As Herbert Xu said: we should be able to simply replace ipfragok
>> with skb->local_df. commit f88037(sctp: Drop ipfargok in sctp_xmit function)
>> has droped ipfragok and set local_df value properly.
>>
>> The patch kills the ipfragok parameter of .queue_xmit().
> 
> Both patches look good to me.
> 
>> @@ -370,7 +370,7 @@ packet_routed:
>>  	skb_reset_network_header(skb);
>>  	iph = ip_hdr(skb);
>>  	*((__be16 *)iph) = htons((4 << 12) | (5 << 8) | (inet->tos & 0xff));
>> -	if (ip_dont_fragment(sk, &rt->u.dst) && !ipfragok)
>> +	if (ip_dont_fragment(sk, &rt->u.dst) && !skb->local_df)
>>  		iph->frag_off = htons(IP_DF);
>>  	else
>>  		iph->frag_off = 0;
> 
> This hunk looked suspecious at first.  However, it is OK because
> ever calls this with ipfragok == 1, or local_df == 1.
> 
> The first is obvious from this patch itself, the second not quite
> so obvious.
> 
> As nobody calls it with local_df == 1 anyway, and strictly speaking
> local_df shouldn't be set at all by the caller of ip_queue_xmit, we
> should simply remove the && ... bit and have 
> 
> 	if (ip_dont_fragment(sk, &rt->u.dst))

Now, PPPoX/PPPoL2TP driver still use ip_queue_xmit to send packets with ipfragok == 1.
So, now we can't remove the && ... bit. 


-- 
Best Regards
-----
Shan Wei

> 
> Cheers,



^ permalink raw reply

* Re: [PATCH] rdma/cm: Randomize local port allocation.
From: Cong Wang @ 2010-04-16  2:22 UTC (permalink / raw)
  To: Sean Hefty
  Cc: 'Tetsuo Handa', opurdila, eric.dumazet, netdev, nhorman,
	davem, ebiederm, linux-kernel, rolandd, linux-rdma
In-Reply-To: <5CE6BC7B954643FAAFFD2AD66F673CBD@amr.corp.intel.com>

Sean Hefty wrote:
> From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
> 
>> Randomize local port allocation in a way sctp_get_port_local() does.
>> Update rover at the end of loop since we're likely to pick a valid port
>> on the first try.
>>
>> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
> Reviewed-by: Sean Hefty <sean.hefty@intel.com>
> 

Thanks, everyone!

> 
> I like this version, thanks!  I'm not sure which tree to merge it through.
> Are you needing this for 2.6.34, or is 2.6.35 okay?
> 

As soon as possible, so 2.6.34. :)

^ permalink raw reply

* Re: [PATCH] net: mac8390 - Sort out memory/MMIO accesses and casts (was: Re: drivers/net/mac8390.c: Remove useless memcpy casting)
From: Finn Thain @ 2010-04-16  2:14 UTC (permalink / raw)
  To: Geert Uytterhoeven
  Cc: Joe Perches, David S. Miller, netdev, Linux Kernel Mailing List,
	Linux/m68k
In-Reply-To: <l2k10f740e81004151234t3004275az36e7873493067a8a@mail.gmail.com>


On Thu, 15 Apr 2010, Geert Uytterhoeven wrote:

> On Mon, Mar 8, 2010 at 18:16, Joe Perches <joe@perches.com> wrote:
>
> > Thanks, I'll submit a patch to fix it by tomorrow or so.
> 
> It hasn't been fixed yet.

Thanks for taking care of this, Geert.

> But here's a better solution. I do not have the hardware to test it, 
> though. Finn, does it {look OK,work}?

It looks fine. I can't test it right now, but I will do so when I get the 
opportunity.

Finn

^ permalink raw reply

* Re: [PATCH] ip: Fix ip_dev_loopback_xmit()
From: Changli Gao @ 2010-04-16  0:19 UTC (permalink / raw)
  To: David Miller; +Cc: eric.dumazet, eparis, netdev, therbert
In-Reply-To: <20100415.171548.179331927.davem@davemloft.net>

On Fri, Apr 16, 2010 at 8:15 AM, David Miller <davem@davemloft.net> wrote:
>
> The ->hard_start_xmit() method always executes with software
> interrupts disabled.
>

Oh, sorry. I traced to the wrong function.

-- 
Regards,
Changli Gao(xiaosuo@gmail.com)

^ permalink raw reply

* Re: [PATCH] ip: Fix ip_dev_loopback_xmit()
From: David Miller @ 2010-04-16  0:15 UTC (permalink / raw)
  To: xiaosuo; +Cc: eric.dumazet, eparis, netdev, therbert
In-Reply-To: <w2o412e6f7f1004151703xdcc4da16s4eb6308f2578b531@mail.gmail.com>

From: Changli Gao <xiaosuo@gmail.com>
Date: Fri, 16 Apr 2010 08:03:59 +0800

> On Fri, Apr 16, 2010 at 5:26 AM, David Miller <davem@davemloft.net> wrote:
>> From: Eric Dumazet <eric.dumazet@gmail.com>
>> Date: Thu, 15 Apr 2010 21:13:03 +0200
>>
>>> [PATCH] ip: Fix ip_dev_loopback_xmit()
>>
>> Applied to net-2.6, thanks Eric.
> 
> 
> Now, I am doubting the correctness of  the following comment:

The ->hard_start_xmit() method always executes with software
interrupts disabled.

^ permalink raw reply

* Re: [PATCH] ip: Fix ip_dev_loopback_xmit()
From: Changli Gao @ 2010-04-16  0:03 UTC (permalink / raw)
  To: David Miller; +Cc: eric.dumazet, eparis, netdev, therbert
In-Reply-To: <20100415.142641.125242830.davem@davemloft.net>

On Fri, Apr 16, 2010 at 5:26 AM, David Miller <davem@davemloft.net> wrote:
> From: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Thu, 15 Apr 2010 21:13:03 +0200
>
>> [PATCH] ip: Fix ip_dev_loopback_xmit()
>
> Applied to net-2.6, thanks Eric.


Now, I am doubting the correctness of  the following comment:

/*
 * The higher levels take care of making this non-reentrant (it's
 * called with bh's disabled).
 */
static netdev_tx_t loopback_xmit(struct sk_buff *skb,
                                 struct net_device *dev)
{
        struct pcpu_lstats __percpu *pcpu_lstats;
        struct pcpu_lstats *lb_stats;
        int len;

        skb_orphan(skb);

        skb->protocol = eth_type_trans(skb, dev);

And these lines:

        /* it's OK to use per_cpu_ptr() because BHs are off */
        pcpu_lstats = (void __percpu __force *)dev->ml_priv;
        lb_stats = this_cpu_ptr(pcpu_lstats);

-- 
Regards,
Changli Gao(xiaosuo@gmail.com)

^ permalink raw reply

* Re: rps perfomance WAS(Re: rps: question
From: Changli Gao @ 2010-04-15 23:56 UTC (permalink / raw)
  To: hadi; +Cc: Rick Jones, David Miller, eric.dumazet, therbert, netdev, robert,
	andi
In-Reply-To: <1271362581.23780.12.camel@bigi>

On Fri, Apr 16, 2010 at 4:16 AM, jamal <hadi@cyberus.ca> wrote:
>
> Sounds interesting.
> Wikipedia information overload. Any arch description of the HP9000?
> Did your scheme use IPIs to message the other CPUs?
>

If you doubt the cost of smp_call_function_single(), how about having
a try with my another patch, which implements the similar of RPS, but
uses kernel threads instead, so no explicit IPI.

http://patchwork.ozlabs.org/patch/38319/


-- 
Regards,
Changli Gao(xiaosuo@gmail.com)

^ permalink raw reply

* Re: rps perfomance WAS(Re: rps: question
From: Changli Gao @ 2010-04-15 23:51 UTC (permalink / raw)
  To: hadi; +Cc: Eric Dumazet, Tom Herbert, netdev
In-Reply-To: <1271335844.23780.8.camel@bigi>

On Thu, Apr 15, 2010 at 8:50 PM, jamal <hadi@cyberus.ca> wrote:
> On Thu, 2010-04-15 at 20:32 +0800, Changli Gao wrote:
>
>> For historical reason, we use Linux-2.6.18. Our company have several
>> products with CPU Xen, P4, or i7. Some of them are SMP, Multi-Core and
>> Multi-Threaded.
>
> Thanks for sharing. How much more can you say? ;-> Do you have a paper
> or description of some sort somewhere?

On a dual 4-core Xeon, we use one core for NIC in internal side, one
core for NIC in the external side, one for inbound QoS, one for
outbound QoS, and the CPU cycles left are used by DPI(DFA), the total
throughput is about 3 Gbps with a polygraph test.

>
>> We use the similar mechanism like dynamic weighted
>> RPS. The total throughput is increased nearly linear with the number
>> of the worker threads(one worker thread per CPU).
>
> Other than the i7 - have you tried to run rps on on the P4?
>

No.


-- 
Regards,
Changli Gao(xiaosuo@gmail.com)

^ permalink raw reply

* Re: [PATCH net-next] net/l2tp/l2tp_debugfs.c: Convert NIPQUAD to %pI4
From: David Miller @ 2010-04-15 22:37 UTC (permalink / raw)
  To: jchapman; +Cc: joe, linux-kernel, netdev
In-Reply-To: <4BC75EA3.2070402@katalix.com>

From: James Chapman <jchapman@katalix.com>
Date: Thu, 15 Apr 2010 19:44:51 +0100

> Joe Perches wrote:
>> Signed-off-by: Joe Perches <joe@perches.com>
> Acked-by: James Chapman <jchapman@katalix.com>

Applied, thanks.

^ permalink raw reply

* Re: [net-next-2.6 PATCH 2/2] net: replace ipfragok with skb->local_df
From: David Miller @ 2010-04-15 22:33 UTC (permalink / raw)
  To: shanwei
  Cc: herbert, yinghai.lu, kuznet, pekkas, jmorris, yoshfuji, kaber,
	" <netdev
In-Reply-To: <4BC70EF1.6080400@cn.fujitsu.com>


Your netdev entry on the CC: list was literally:

	" <netdev@vger.kernel.org>,

which caused your patch to not make it netdev and therefore
it also didn't make it into patchwork.

Please resubmit your patches (both of them) with the CC:
list fixed up.

Thank you.

^ permalink raw reply

* Re: NULL pointer dereference panic in stable (2.6.33.2), amd64
From: David Miller @ 2010-04-15 21:33 UTC (permalink / raw)
  To: eric.dumazet; +Cc: krkumar2, netdev, nuclearcat
In-Reply-To: <1271364375.16881.3099.camel@edumazet-laptop>

From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 15 Apr 2010 22:46:15 +0200

> Le jeudi 15 avril 2010 à 22:30 +0200, Eric Dumazet a écrit :
>>  
>> @@ -1938,6 +1928,8 @@ gso:
>>  		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
>>  			skb_dst_drop(nskb);
>>  
>> +		skb_orphan(nskb);
>> +
>>  		rc = ops->ndo_start_xmit(nskb, dev);
>>  		if (unlikely(rc != NETDEV_TX_OK)) {
>>  			if (rc & ~NETDEV_TX_MASK)
> 
> Well, might need to test if skb is not shared before orphaning it
> 
> 	if (!skb_shared(skb))
> 		skb_orphan(nskb);

If it's not legal to skb_orphan() here then it would not be legal for
the drivers to unconditionally skb_orphan(), which they do.

So either your test is unnecessary, or we have a big existing problem
:-)


^ permalink raw reply

* Re: pull request: wireless-next-2.6 2010-04-15
From: David Miller @ 2010-04-15 21:31 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, netdev
In-Reply-To: <20100415205358.GA6659@tuxdriver.com>

From: "John W. Linville" <linville@tuxdriver.com>
Date: Thu, 15 Apr 2010 16:53:59 -0400

> Here is another huge dump of wireless bits intended for 2.6.35...  It is
> mostly drivers, and mostly the "usual suspects" of those -- ath5k,
> ath9k, iwlwifi, rt2x00, wl1271, and others.  There are also some
> infrastructure bits from Johannes and Jouni, including some tracing
> stuff.
> 
> Please let me know if there are problems!

Pulled, thanks John!

> P.S.  Please note the "for-davem" after the git url... :-)

Yep, saw it :-)

^ permalink raw reply

* Re: pull request: wireless-2.6 2010-04-15
From: David Miller @ 2010-04-15 21:29 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, netdev, linux-kernel
In-Reply-To: <20100415200331.GD3020@tuxdriver.com>

From: "John W. Linville" <linville@tuxdriver.com>
Date: Thu, 15 Apr 2010 16:03:31 -0400

> Another fix intended for 2.6.34...without it some firmware wierdness can
> induce the driver into hanging the box... :-(
> 
> Please let me know if there are problems!

Pulled, thanks.

^ permalink raw reply

* Re: [PATCH] ip: Fix ip_dev_loopback_xmit()
From: David Miller @ 2010-04-15 21:26 UTC (permalink / raw)
  To: eric.dumazet; +Cc: eparis, netdev, therbert
In-Reply-To: <1271358783.16881.2949.camel@edumazet-laptop>

From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 15 Apr 2010 21:13:03 +0200

> [PATCH] ip: Fix ip_dev_loopback_xmit()

Applied to net-2.6, thanks Eric.

^ permalink raw reply

* Re: [PATCH 0/3]: fixes for multicast routing rules
From: David Miller @ 2010-04-15 21:14 UTC (permalink / raw)
  To: kaber; +Cc: netdev
In-Reply-To: <1271335678-20961-1-git-send-email-kaber@trash.net>

From: Patrick McHardy <kaber@trash.net>
Date: Thu, 15 Apr 2010 14:47:55 +0200

> the following three patches fix a few bugs introduced by the multicast routing
> rule patches:
 ...
> Please apply or pull from:
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/kaber/ipmr-2.6.git master

Pulled, thanks a lot Patrick!

^ permalink raw reply

* pull request: wireless-next-2.6 2010-04-15
From: John W. Linville @ 2010-04-15 20:53 UTC (permalink / raw)
  To: davem; +Cc: linux-wireless, netdev

Dave,

Here is another huge dump of wireless bits intended for 2.6.35...  It is
mostly drivers, and mostly the "usual suspects" of those -- ath5k,
ath9k, iwlwifi, rt2x00, wl1271, and others.  There are also some
infrastructure bits from Johannes and Jouni, including some tracing
stuff.

Please let me know if there are problems!

Thanks,

John

P.S.  Please note the "for-davem" after the git url... :-)

---

The following changes since commit fea069152614cdeefba4b2bf80afcddb9c217fc8:
  David S. Miller (1):
        Merge branch 'vhost' of git://git.kernel.org/.../mst/vhost

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6.git for-davem

Bob Copeland (4):
      ath5k: correct channel setting for 2.5 mhz spacing
      ath5k: clean up queue manipulation
      ath5k: fix race condition in tx desc processing
      ath5k: add bounds check to pdadc table

Bruno Randolf (12):
      ath5k: remove static calibration interval variable
      ath5k: remove the use of SWI interrupt
      ath5k: optimize ath5k_hw_calibration_poll
      ath5k: move ath5k_hw_calibration_poll to base.c
      ath5k: keep beacon RSSI average
      ath5k: initialize default noise floor
      ath5k: simplify MIB counters
      ath5k: update phy errors codes
      ath5k: add capability flag for phyerror counters
      ath5k: Adaptive Noise Immunity (ANI) Implementation
      ath5k: Use high bitrates for ACK/CTS
      ath5k: treat RXORN as non-fatal

Christian Lamparter (2):
      ar9170usb: fix panic triggered by undersized rxstream buffer
      ar9170usb: add a couple more USB IDs

Daniel Mack (1):
      libertas/sdio: 8686: set ECSI bit for 1-bit transfers

Felix Fietkau (4):
      ath9k: split out access to tx status information
      ath9k: split out access to rx status information
      ath9k: allocate tx and rx status information on stack
      ath9k: fix compile error without debug enabled

Frans Pop (7):
      wireless: remove trailing space in messages
      wireless/prism54: remove trailing space in messages
      wireless/raylink: remove trailing space in messages
      wireless/libertas: remove trailing space in debugfs header
      wireless/ipw2x00: remove trailing space in messages
      iwlwifi: remove trailing space in messages
      wireless/ath: remove trailing space in messages

Gertjan van Wingerde (13):
      rt2x00: Disable auto wakeup before waking up device.
      rt2x00: Add wakeup interrupt handler to rt61pci.
      rt2x00: Add wakeup interrupt handler to rt2800pci.
      rt2x00: Enable powersaving by default again on rt2500usb.
      rt2x00: Let RF chipset decide the RF channel switch method to use in rt2800.
      rt2x00: Update rt2800 register definitions towards latest definitions.
      rt2x00: Align RT chipset definitions with vendor driver.
      rt2x00: Refactor rt2800 version constants.
      rt2x00: Align rt2800 register initialization with vendor driver.
      rt2x00: Finish rt3070 support in rt2800 register initialization.
      rt2x00: Add rt3071 support in rt2800 register initialization.
      rt2x00: Add rt3090 support in rt2800 register initialization.
      rt2x00: Add rt3390 support in rt2800 register initialization.

Grazvydas Ignotas (1):
      wl1251: don't require NVS data when EEPROM is used

Helmut Schaa (1):
      rt2x00: use rt2800_config_channel_rt3x for rt2872

Javier Cardona (1):
      mac80211: Moved mesh action codes to a more visible location

Jay Sternberg (1):
      iwlwifi: enable '6000 Series 2x2 AGN Gen2' adaptors

Joe Perches (1):
      include/net/iw_handler.h: Use SIOCIWFIRST not SIOCSIWCOMMIT in comment

Johannes Berg (14):
      iwlwifi: remove noise reporting
      mac80211: fix station destruction problem
      mac80211: remove irq disabling for sta lock
      mac80211: remove ieee80211_sta_stop_rx_ba_session
      mac80211: rename WLAN_STA_SUSPEND to WLAN_STA_BLOCK_BA
      mac80211: clean up/fix aggregation code
      mac80211: fix some RX aggregation locking
      mac80211: fix paged RX crypto
      mac80211: enhance tracing
      iwlwifi: make WEP key restoring explicit
      iwlwifi: remove wrong key use check
      iwlagn: simplify WEP key check
      iwlwifi: remove pointless sta_id invalid check
      iwlwifi: clean up last_phy_res

John W. Linville (6):
      Merge branch 'wireless-next-2.6' of git://git.kernel.org/.../iwlwifi/iwlwifi-2.6
      Merge branch 'master' of git://git.kernel.org/.../linville/wireless-2.6 into merge
      ath5k: fixup some merge damage for AR5211 IQ calibration
      Merge branch 'master' of git://git.kernel.org/.../linville/wireless-2.6
      Merge branch 'wireless-next-2.6' of git://git.kernel.org/.../iwlwifi/iwlwifi-2.6
      Merge branch 'master' of git://git.kernel.org/.../linville/wireless-next-2.6 into for-davem

Jouni Malinen (8):
      mac80211: Track Beacon signal strength and implement cqm events
      mac80211: Send deauth/disassoc prior to dropping STA entry
      mac80211: Fix BIP to be used only with group-addressed frames
      mac80211: Fix dropping of unprotected robust multicast frames
      ath9k: Do not indicate RX_FLAG_DECRYPTED for unprotected frames
      mac80211: Fix drop_unencrypted for MFP with hwaccel
      mac80211: Fix robust management frame handling (MFP)
      cfg80211: Add local-state-change-only auth/deauth/disassoc

Juuso Oikarinen (26):
      wl1271: Clean up RX rate reporting
      wl1271: Add TX rate reporting
      wl1271: Fix memory leaks in SPI initialization
      wl1271: Fix memory leak in scan command handling
      wl1271: Configure clock-request drive mode to open-drain
      wl1271: Fix memory leak in cmd_data_path
      wl1271: Update busyword checking mechanism
      wl1271: Remove device MAC-address randomization
      wl1271: Disable connection monitoring while not associated
      wl1271: Fix ad-hoc mode handling
      wl1271: Update beacon interval properly for ad-hoc
      wl1271: Fix memory leak in firmware crash scenario
      wl1271: Configure probe-request template when associated
      wl1271: Disconnect if PSM entry fails
      wl1271: Configure HW connection monitor
      wl1271: Add keep-alive frame template support
      wl1271: Enable hardware keep alive messages
      wl1271: Fix keep-alive related command error
      wl1271: Use minimum rate for each band for control messages
      wl1271: Configure rates for templates
      wl1271: Configure a higher listen interval to AP upon association
      wl1271: Fix debug prints for beacon-loss and psm-entry-fail scenarios
      wl1271: Fix tx queue flushing
      wl1271: Fix memory leaks on driver initialization
      wl1271: Go to ELP in idle
      wl1271: Add support for connection quality monitoring

Kalle Valo (1):
      wl1251: use DRIVER_NAME macro in wl1251_spi_driver

Luciano Coelho (6):
      wl1271: fix wl1271_spi driver name
      wl1271: wait for join command complete event
      wl1271: wait for disconnect command complete event
      wl1271: remove deprecated usage of RX status noise
      wl1271: fix sdio driver name in wl1271_sdio_driver
      wl1271: added missing command header in wl1271_cmd_disconnect

Luis Correia (1):
      rt2x00: remove MCU requests for SoC platforms

Luis R. Rodriguez (2):
      mac80211_hwsim: add sw_scan sw_scan_complete
      mac80211: fix typo for LDPC capability

Luis de Bethencourt (3):
      Net: wireless: ath: fix macros coding style issue in hw.c
      ath: fix code readability in regd.c
      ath: fix coding style/readability in ath/ar9170

Marco Porsch (1):
      nl80211: reenable station del for mesh

Ming Lei (4):
      ath9k-htc:respect usb buffer cacheline alignment in ath9k_hif_usb_alloc_rx_urbs
      ath9k-htc:respect usb buffer cacheline alignment in reg in path
      ath9k-htc:respect usb buffer cacheline alignment in reg out path
      ath9k-htc: fix lockdep warning and kernel warning after unplugging ar9271 usb device

Pavel Roskin (4):
      ath9k: rename symbols in enum ath9k_internal_frame_type to avoid confusion
      ath9k: move imask from sc to ah
      ath9k: remove ah->mask_reg, it's never used properly
      ath9k: simplify AR9220 fixup code for AR_AN_TOP2 register

Quintin Pitts (1):
      p54pci: prevent stuck rx-ring on slow system

Rafał Miłecki (6):
      b43: N-PHY: some dummy PHY rev 3 calls
      b43: N-PHY: use b43_phy_n_sfo_cfg rather than duplicating same fields
      b43: N-PHY: find table entry earlier for setting chanspec
      b43: N-PHY: prepare for rev3+ channel tables
      b43: N-PHY: fix value written on 2055 radio setup
      b43: N-PHY: fix copy&paste typo

Reinette Chatre (2):
      Revert "iwlwifi: fix build error for CONFIG_IWLAGN=n"
      iwlwifi: fix compile warnings when compiling without debug

Saravanan Dhanabal (3):
      wl1271: Fix msleep() delay while waiting for completion
      wl1271: Fix mac80211 configuration requests during WL1271_STATE_OFF
      wl1271: Fix mac80211 RTS threshold requests during WL1271_STATE_OFF

Stanislaw Gruszka (3):
      mac80211: explicitly disable/enable QoS
      iwlwifi: manage QoS by mac stack
      mac80211: enable QoS explicitly in AP mode

Sujith (15):
      ath9k_common: Move RX filter code to ath9k_htc
      ath9k_htc: Fix bug in aggregation initiation
      ath9k_htc: Fix watchdog pattern parsing
      ath9k_htc: Simplify RX URB management
      ath9k_htc: Handle TX queue overflow
      ath9k_htc: Initialize HW opmode
      ath9k_htc: Fix TKIP encryption
      ath: Add a bus type field
      ath9k_hw: Don't check devid for ath9k_htc
      ath9k_htc: Add TL-WN422G v2 product ID
      ath9k_htc: Protect RX stream variables
      ath9k_htc: Fix RX URB reference count
      ath9k_htc: Fix module unloading issue
      ath9k_htc: Use anchors for REGOUT pipe
      ath9k_htc: Fix HTC layer memleak

Teemu Paasikivi (3):
      wl1271: Warnings caused by wrong format specifiers fixed
      wl1271: Removed checking of PSM from handling BSS_LOST_EVENT
      mac80211: check whether scan is in progress before queueing scan_work

Vivek Natarajan (3):
      ath9k: Add support for newer AR9285 chipsets.
      ath9k_htc: Add support for power save.
      ath9k_htc: Configure the beacon timers once the scan is completed.

Wey-Yi Guy (28):
      iwlwifi: iwl_good_ack_health() only apply to AGN device
      iwlwifi: move ucode loading related code to separated file
      iwlwifi: code cleanup for "load ucode" function
      iwlwifi: move hcmd related code to separate file
      iwlwifi: move tx queue related code to separate file
      iwlwifi: move hw related defines to separate file
      iwlwifi: move ucode alive related code to separate file
      iwlwifi: move agn common code to iwlagn library file
      iwlwifi: each device has its own eeprom tx power version
      iwlwifi: move agn module parameter structure to common place
      iwlwifi: move agn only tx functions from iwlcore to iwlagn
      iwlwifi: move agn only rx functions from iwlcore to iwlagn
      iwlwifi: more clean up to move agn only rx functions from iwlcore to iwlagn
      iwlwifi: remove non-exist extern functions and structures
      iwlwifi: add missing email address information
      iwlwifi: Generic approach to measure temperature
      iwlwifi: remove "\n" from module parameter description
      iwlwifi: change spin_lock to spin_lock_irqsave
      iwlwifi: avoid device type checking in generic code
      iwlwifi: merge module parameters into single place
      iwlwifi: remove irrelevant comments
      iwlwifi: deprecate "iwl4965" alias support
      iwlwifi: code cleanup for generic defines
      iwlwifi: default max event log size
      iwlwifi: add more debug info in error event dump
      iwlwifi: update tx command response status
      iwlwifi: small changes in comments
      iwlwifi: fix compiler warning

Xose Vazquez Perez (5):
      wireless: rt2x00: rt2800usb: identify ids-chips
      wireless: rt2x00: rt2800usb: delete id
      wireless: rt2x00: rt2800pci: new id
      wireless: rt2x00: rt2800usb: new ids
      wireless: rt2x00: rt2800usb: identify Sitecom devices

Zhu Yi (6):
      mac80211: support paged rx SKBs
      iwlwifi: remove skb_linearize for rx frames
      ipw2200: restart adapter only when abort_scan doesn't work
      iwlwifi: clear rxq->queue in queue reset
      mac80211: delay skb linearising in rx decryption
      iwlwifi: avoid Tx queue memory allocation in interface down

 Documentation/feature-removal-schedule.txt      |   22 +-
 drivers/net/wireless/ath/ar9170/cmd.h           |    2 +-
 drivers/net/wireless/ath/ar9170/eeprom.h        |    4 +-
 drivers/net/wireless/ath/ar9170/hw.h            |    1 +
 drivers/net/wireless/ath/ar9170/main.c          |   13 +-
 drivers/net/wireless/ath/ar9170/usb.c           |   10 +
 drivers/net/wireless/ath/ath.h                  |   13 +-
 drivers/net/wireless/ath/ath5k/Makefile         |    1 +
 drivers/net/wireless/ath/ath5k/ani.c            |  744 ++++++++++++
 drivers/net/wireless/ath/ath5k/ani.h            |  104 ++
 drivers/net/wireless/ath/ath5k/ath5k.h          |   68 +-
 drivers/net/wireless/ath/ath5k/attach.c         |    2 +
 drivers/net/wireless/ath/ath5k/base.c           |  129 ++-
 drivers/net/wireless/ath/ath5k/base.h           |   21 +-
 drivers/net/wireless/ath/ath5k/caps.c           |    6 +
 drivers/net/wireless/ath/ath5k/debug.c          |  170 +++
 drivers/net/wireless/ath/ath5k/debug.h          |    2 +
 drivers/net/wireless/ath/ath5k/desc.c           |    1 +
 drivers/net/wireless/ath/ath5k/desc.h           |   35 +-
 drivers/net/wireless/ath/ath5k/pcu.c            |   44 +-
 drivers/net/wireless/ath/ath5k/phy.c            |   37 +-
 drivers/net/wireless/ath/ath5k/reg.h            |   40 +-
 drivers/net/wireless/ath/ath9k/ahb.c            |    1 +
 drivers/net/wireless/ath/ath9k/ath9k.h          |    4 -
 drivers/net/wireless/ath/ath9k/beacon.c         |   35 +-
 drivers/net/wireless/ath/ath9k/calib.c          |   59 +-
 drivers/net/wireless/ath/ath9k/common.c         |   85 +--
 drivers/net/wireless/ath/ath9k/common.h         |    4 -
 drivers/net/wireless/ath/ath9k/debug.c          |   39 +-
 drivers/net/wireless/ath/ath9k/debug.h          |    9 +-
 drivers/net/wireless/ath/ath9k/eeprom_4k.c      |    2 +-
 drivers/net/wireless/ath/ath9k/eeprom_9287.c    |    2 +-
 drivers/net/wireless/ath/ath9k/gpio.c           |   17 +-
 drivers/net/wireless/ath/ath9k/hif_usb.c        |  191 ++--
 drivers/net/wireless/ath/ath9k/hif_usb.h        |   10 +-
 drivers/net/wireless/ath/ath9k/htc.h            |   25 +-
 drivers/net/wireless/ath/ath9k/htc_drv_beacon.c |   41 +-
 drivers/net/wireless/ath/ath9k/htc_drv_init.c   |   12 +-
 drivers/net/wireless/ath/ath9k/htc_drv_main.c   |  149 +++-
 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c   |  112 ++-
 drivers/net/wireless/ath/ath9k/htc_hst.c        |   35 +-
 drivers/net/wireless/ath/ath9k/hw.c             |  139 +--
 drivers/net/wireless/ath/ath9k/hw.h             |    5 +-
 drivers/net/wireless/ath/ath9k/initvals.h       |  109 ++-
 drivers/net/wireless/ath/ath9k/mac.c            |  149 ++--
 drivers/net/wireless/ath/ath9k/mac.h            |   14 +-
 drivers/net/wireless/ath/ath9k/main.c           |   60 +-
 drivers/net/wireless/ath/ath9k/pci.c            |    1 +
 drivers/net/wireless/ath/ath9k/phy.h            |   14 +-
 drivers/net/wireless/ath/ath9k/rc.h             |    6 +-
 drivers/net/wireless/ath/ath9k/recv.c           |   26 +-
 drivers/net/wireless/ath/ath9k/reg.h            |   13 +-
 drivers/net/wireless/ath/ath9k/virtual.c        |    2 +-
 drivers/net/wireless/ath/ath9k/wmi.c            |   10 +-
 drivers/net/wireless/ath/ath9k/xmit.c           |  113 +-
 drivers/net/wireless/ath/hw.c                   |    4 +-
 drivers/net/wireless/ath/regd.c                 |    3 +-
 drivers/net/wireless/b43/phy_n.c                |   54 +-
 drivers/net/wireless/b43/tables_nphy.c          |   20 +-
 drivers/net/wireless/b43/tables_nphy.h          |   28 +-
 drivers/net/wireless/ipw2x00/ipw2100.c          |   38 +-
 drivers/net/wireless/ipw2x00/ipw2200.c          |   87 +-
 drivers/net/wireless/iwlwifi/Makefile           |    2 +
 drivers/net/wireless/iwlwifi/iwl-1000.c         |   78 +-
 drivers/net/wireless/iwlwifi/iwl-3945-hw.h      |    5 -
 drivers/net/wireless/iwlwifi/iwl-3945-rs.c      |    4 +-
 drivers/net/wireless/iwlwifi/iwl-3945.c         |   79 +--
 drivers/net/wireless/iwlwifi/iwl-4965-hw.h      |   24 -
 drivers/net/wireless/iwlwifi/iwl-4965.c         |   62 +-
 drivers/net/wireless/iwlwifi/iwl-5000-hw.h      |   33 -
 drivers/net/wireless/iwlwifi/iwl-5000.c         | 1378 ++---------------------
 drivers/net/wireless/iwlwifi/iwl-6000.c         |  195 ++--
 drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c     |  274 +++++
 drivers/net/wireless/iwlwifi/iwl-agn-hw.h       |  118 ++
 drivers/net/wireless/iwlwifi/iwl-agn-ict.c      |   14 +-
 drivers/net/wireless/iwlwifi/iwl-agn-lib.c      | 1113 ++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c       |    6 +-
 drivers/net/wireless/iwlwifi/iwl-agn-tx.c       | 1333 ++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-agn-ucode.c    |  416 +++++++
 drivers/net/wireless/iwlwifi/iwl-agn.c          |  204 +++--
 drivers/net/wireless/iwlwifi/iwl-agn.h          |  100 ++
 drivers/net/wireless/iwlwifi/iwl-calib.c        |    2 +-
 drivers/net/wireless/iwlwifi/iwl-commands.h     |  108 ++-
 drivers/net/wireless/iwlwifi/iwl-core.c         |  267 +----
 drivers/net/wireless/iwlwifi/iwl-core.h         |   31 +-
 drivers/net/wireless/iwlwifi/iwl-dev.h          |   76 +--
 drivers/net/wireless/iwlwifi/iwl-devtrace.c     |    1 +
 drivers/net/wireless/iwlwifi/iwl-eeprom.h       |   17 +-
 drivers/net/wireless/iwlwifi/iwl-hcmd.c         |    4 +-
 drivers/net/wireless/iwlwifi/iwl-io.h           |    2 +-
 drivers/net/wireless/iwlwifi/iwl-led.c          |    2 +-
 drivers/net/wireless/iwlwifi/iwl-power.c        |   10 +-
 drivers/net/wireless/iwlwifi/iwl-rx.c           |  758 +-------------
 drivers/net/wireless/iwlwifi/iwl-scan.c         |    9 +-
 drivers/net/wireless/iwlwifi/iwl-sta.c          |   48 +-
 drivers/net/wireless/iwlwifi/iwl-sta.h          |    2 +-
 drivers/net/wireless/iwlwifi/iwl-tx.c           | 1091 +------------------
 drivers/net/wireless/iwlwifi/iwl3945-base.c     |   30 +-
 drivers/net/wireless/libertas/debugfs.c         |    2 +-
 drivers/net/wireless/libertas/if_sdio.c         |   22 +
 drivers/net/wireless/mac80211_hwsim.c           |   45 +-
 drivers/net/wireless/p54/p54pci.c               |   26 +-
 drivers/net/wireless/p54/txrx.c                 |    2 +-
 drivers/net/wireless/prism54/islpci_dev.c       |   16 +-
 drivers/net/wireless/prism54/islpci_eth.c       |    8 +-
 drivers/net/wireless/prism54/islpci_mgt.c       |    8 +-
 drivers/net/wireless/prism54/oid_mgt.c          |    2 +-
 drivers/net/wireless/ray_cs.c                   |   12 +-
 drivers/net/wireless/rt2x00/rt2400pci.c         |    4 +
 drivers/net/wireless/rt2x00/rt2500pci.c         |    4 +
 drivers/net/wireless/rt2x00/rt2500usb.c         |    9 +-
 drivers/net/wireless/rt2x00/rt2800.h            |  108 ++-
 drivers/net/wireless/rt2x00/rt2800lib.c         |  467 ++++++---
 drivers/net/wireless/rt2x00/rt2800pci.c         |   31 +-
 drivers/net/wireless/rt2x00/rt2800usb.c         |   76 +-
 drivers/net/wireless/rt2x00/rt2x00.h            |   29 +-
 drivers/net/wireless/rt2x00/rt61pci.c           |   14 +
 drivers/net/wireless/rt2x00/rt73usb.c           |    6 +-
 drivers/net/wireless/wl12xx/wl1251_main.c       |    4 +-
 drivers/net/wireless/wl12xx/wl1251_spi.c        |    2 +-
 drivers/net/wireless/wl12xx/wl1271.h            |   19 +-
 drivers/net/wireless/wl12xx/wl1271_acx.c        |  146 +++-
 drivers/net/wireless/wl12xx/wl1271_acx.h        |   89 ++-
 drivers/net/wireless/wl12xx/wl1271_boot.c       |   15 +-
 drivers/net/wireless/wl12xx/wl1271_boot.h       |    7 +-
 drivers/net/wireless/wl12xx/wl1271_cmd.c        |  127 ++-
 drivers/net/wireless/wl12xx/wl1271_cmd.h        |   13 +-
 drivers/net/wireless/wl12xx/wl1271_conf.h       |  158 ++--
 drivers/net/wireless/wl12xx/wl1271_event.c      |   66 +-
 drivers/net/wireless/wl12xx/wl1271_event.h      |    8 +
 drivers/net/wireless/wl12xx/wl1271_init.c       |   53 +-
 drivers/net/wireless/wl12xx/wl1271_main.c       |  393 ++++++--
 drivers/net/wireless/wl12xx/wl1271_ps.c         |    6 +-
 drivers/net/wireless/wl12xx/wl1271_rx.c         |   83 +--
 drivers/net/wireless/wl12xx/wl1271_rx.h         |    2 +-
 drivers/net/wireless/wl12xx/wl1271_sdio.c       |    6 +-
 drivers/net/wireless/wl12xx/wl1271_spi.c        |   71 +-
 drivers/net/wireless/wl12xx/wl1271_tx.c         |   43 +-
 drivers/net/wireless/wl12xx/wl1271_tx.h         |    2 +
 include/linux/ieee80211.h                       |    3 +-
 include/linux/mmc/sdio.h                        |    2 +
 include/linux/nl80211.h                         |    8 +
 include/net/cfg80211.h                          |   11 +
 include/net/iw_handler.h                        |    2 +-
 include/net/mac80211.h                          |   10 +-
 net/mac80211/Kconfig                            |    8 +-
 net/mac80211/agg-rx.c                           |   72 +-
 net/mac80211/agg-tx.c                           |   14 +-
 net/mac80211/cfg.c                              |   13 +-
 net/mac80211/debugfs_netdev.c                   |   12 +
 net/mac80211/debugfs_sta.c                      |   12 +-
 net/mac80211/driver-trace.h                     |  275 +++++
 net/mac80211/ht.c                               |    3 +-
 net/mac80211/ieee80211_i.h                      |   21 +-
 net/mac80211/main.c                             |    2 +
 net/mac80211/mesh.c                             |    4 +-
 net/mac80211/mesh.h                             |    2 -
 net/mac80211/mesh_hwmp.c                        |    4 +-
 net/mac80211/mesh_plink.c                       |    2 +-
 net/mac80211/mlme.c                             |  106 ++-
 net/mac80211/pm.c                               |    2 +-
 net/mac80211/rx.c                               |   91 ++-
 net/mac80211/scan.c                             |    2 +
 net/mac80211/sta_info.c                         |   75 +-
 net/mac80211/sta_info.h                         |   10 +-
 net/mac80211/tx.c                               |    7 +-
 net/mac80211/util.c                             |   11 +-
 net/mac80211/work.c                             |    7 +-
 net/wireless/core.h                             |   15 +-
 net/wireless/mlme.c                             |   39 +-
 net/wireless/nl80211.c                          |   22 +-
 net/wireless/reg.c                              |    6 +-
 net/wireless/sme.c                              |   15 +-
 net/wireless/util.c                             |   24 +-
 174 files changed, 8596 insertions(+), 5612 deletions(-)
 create mode 100644 drivers/net/wireless/ath/ath5k/ani.c
 create mode 100644 drivers/net/wireless/ath/ath5k/ani.h
 create mode 100644 drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c
 create mode 100644 drivers/net/wireless/iwlwifi/iwl-agn-hw.h
 create mode 100644 drivers/net/wireless/iwlwifi/iwl-agn-lib.c
 create mode 100644 drivers/net/wireless/iwlwifi/iwl-agn-tx.c
 create mode 100644 drivers/net/wireless/iwlwifi/iwl-agn-ucode.c

Omnibus patch available here:

	http://www.kernel.org/pub/linux/kernel/people/linville/wireless-next-2.6-2010-04-15.patch.bz2

-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.

^ permalink raw reply

* Re: NULL pointer dereference panic in stable (2.6.33.2), amd64
From: Eric Dumazet @ 2010-04-15 20:46 UTC (permalink / raw)
  To: David Miller; +Cc: krkumar2, netdev, nuclearcat
In-Reply-To: <1271363432.16881.3080.camel@edumazet-laptop>

Le jeudi 15 avril 2010 à 22:30 +0200, Eric Dumazet a écrit :
>  
> @@ -1938,6 +1928,8 @@ gso:
>  		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
>  			skb_dst_drop(nskb);
>  
> +		skb_orphan(nskb);
> +
>  		rc = ops->ndo_start_xmit(nskb, dev);
>  		if (unlikely(rc != NETDEV_TX_OK)) {
>  			if (rc & ~NETDEV_TX_MASK)

Well, might need to test if skb is not shared before orphaning it

	if (!skb_shared(skb))
		skb_orphan(nskb);




^ permalink raw reply

* Re: NULL pointer dereference panic in stable (2.6.33.2), amd64
From: Eric Dumazet @ 2010-04-15 20:30 UTC (permalink / raw)
  To: David Miller; +Cc: krkumar2, netdev, nuclearcat
In-Reply-To: <20100415.020619.00349859.davem@davemloft.net>

Le jeudi 15 avril 2010 à 02:06 -0700, David Miller a écrit :
> From: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Thu, 15 Apr 2010 10:51:47 +0200
> 
> > In any case, I think there is a fundamental problem with this sk
> > caching. Because one packet can travel in many stacked devices before
> > hitting the wire.
> > 
> > (bonding, vlan, ethernet) for example.
> > 
> > Socket cache is meaningfull for one level only...
> 
> We were talking the other day about that 'tun' change to orphan the
> SKB on TX, and I mentioned the possibility of just doing this in some
> generic location before we give the packet to the device ->xmit()
> method.
> 
> Such a scheme could help with this problem too.

Same thing we did with 

if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
	skb_dst_drop(skb);

in dev_hard_start_xmit() ?

Problem is this skb_tstamp_tx() thing....

One possibility would be to change skb_orphan() to let everything done
by destructor. 

One more argument would let destructor() know if this is the final
destructor() called from skb_release_head_state()

destructor() would be responsible to set skb->destructor and/or skb->sk
to NULL when possible. 


All normal destructors would not care of this 2nd argument and just do
what they actually do, plus setting skb->sk = NULL, skb->destructor =
NULL

Fast path would stay as today, no extra test.

Only tstamp users would need to setup another destructor, a bit more
complex (it would have to take a look at 2nd argument before really
doing the job)


Completely untested patch to get the idea :
(to be completed for the tstamp thing)


 include/linux/skbuff.h         |    8 +++-----
 include/net/sctp/sctp.h        |    2 +-
 include/net/sock.h             |    4 ++--
 net/caif/caif_socket.c         |    4 +++-
 net/core/dev.c                 |   26 +++++++++-----------------
 net/core/skbuff.c              |    2 +-
 net/core/sock.c                |    8 ++++++--
 net/l2tp/l2tp_core.c           |    4 +++-
 net/netfilter/nf_tproxy_core.c |    2 +-
 net/packet/af_packet.c         |    4 ++--
 net/unix/af_unix.c             |    4 ++--
 11 files changed, 33 insertions(+), 35 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 38501d2..7dfd833 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -353,7 +353,7 @@ struct sk_buff {
 	kmemcheck_bitfield_end(flags1);
 	__be16			protocol;
 
-	void			(*destructor)(struct sk_buff *skb);
+	void			(*destructor)(struct sk_buff *skb, int final);
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 	struct nf_conntrack	*nfct;
 	struct sk_buff		*nfct_reasm;
@@ -1407,15 +1407,13 @@ static inline void pskb_trim_unique(struct sk_buff *skb, unsigned int len)
  *	@skb: buffer to orphan
  *
  *	If a buffer currently has an owner then we call the owner's
- *	destructor function and make the @skb unowned. The buffer continues
+ *	destructor function. The buffer continues
  *	to exist but is no longer charged to its former owner.
  */
 static inline void skb_orphan(struct sk_buff *skb)
 {
 	if (skb->destructor)
-		skb->destructor(skb);
-	skb->destructor = NULL;
-	skb->sk		= NULL;
+		skb->destructor(skb, 0);
 }
 
 /**
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 5915155..49e2162 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -130,7 +130,7 @@ int sctp_inet_listen(struct socket *sock, int backlog);
 void sctp_write_space(struct sock *sk);
 unsigned int sctp_poll(struct file *file, struct socket *sock,
 		poll_table *wait);
-void sctp_sock_rfree(struct sk_buff *skb);
+void sctp_sock_rfree(struct sk_buff *skb, int final);
 void sctp_copy_sock(struct sock *newsk, struct sock *sk,
 		    struct sctp_association *asoc);
 extern struct percpu_counter sctp_sockets_allocated;
diff --git a/include/net/sock.h b/include/net/sock.h
index 56df440..a042c9d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -988,8 +988,8 @@ extern struct sk_buff		*sock_wmalloc(struct sock *sk,
 extern struct sk_buff		*sock_rmalloc(struct sock *sk,
 					      unsigned long size, int force,
 					      gfp_t priority);
-extern void			sock_wfree(struct sk_buff *skb);
-extern void			sock_rfree(struct sk_buff *skb);
+extern void			sock_wfree(struct sk_buff *skb, int final);
+extern void			sock_rfree(struct sk_buff *skb, int final);
 
 extern int			sock_setsockopt(struct socket *sock, int level,
 						int op, char __user *optval,
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index cdf62b9..4e7276a 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -256,10 +256,12 @@ static void caif_sktflowctrl_cb(struct cflayer *layr,
 	}
 }
 
-static void skb_destructor(struct sk_buff *skb)
+static void skb_destructor(struct sk_buff *skb, int final)
 {
 	dbfs_atomic_inc(&cnt.skb_free);
 	dbfs_atomic_dec(&cnt.skb_in_use);
+	skb->sk = NULL;
+	skb->destructor = NULL;
 }
 
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 876b111..9bffbe5 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1828,12 +1828,12 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
 }
 
 struct dev_gso_cb {
-	void (*destructor)(struct sk_buff *skb);
+	void (*destructor)(struct sk_buff *skb, int final);
 };
 
 #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb)
 
-static void dev_gso_skb_destructor(struct sk_buff *skb)
+static void dev_gso_skb_destructor(struct sk_buff *skb, int final)
 {
 	struct dev_gso_cb *cb;
 
@@ -1847,7 +1847,9 @@ static void dev_gso_skb_destructor(struct sk_buff *skb)
 
 	cb = DEV_GSO_CB(skb);
 	if (cb->destructor)
-		cb->destructor(skb);
+		cb->destructor(skb, final);
+	skb->sk = NULL;
+	skb->destructor = NULL;
 }
 
 /**
@@ -1904,23 +1906,11 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
 			skb_dst_drop(skb);
 
+		skb_orphan(skb);
+
 		rc = ops->ndo_start_xmit(skb, dev);
 		if (rc == NETDEV_TX_OK)
 			txq_trans_update(txq);
-		/*
-		 * TODO: if skb_orphan() was called by
-		 * dev->hard_start_xmit() (for example, the unmodified
-		 * igb driver does that; bnx2 doesn't), then
-		 * skb_tx_software_timestamp() will be unable to send
-		 * back the time stamp.
-		 *
-		 * How can this be prevented? Always create another
-		 * reference to the socket before calling
-		 * dev->hard_start_xmit()? Prevent that skb_orphan()
-		 * does anything in dev->hard_start_xmit() by clearing
-		 * the skb destructor before the call and restoring it
-		 * afterwards, then doing the skb_orphan() ourselves?
-		 */
 		return rc;
 	}
 
@@ -1938,6 +1928,8 @@ gso:
 		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
 			skb_dst_drop(nskb);
 
+		skb_orphan(nskb);
+
 		rc = ops->ndo_start_xmit(nskb, dev);
 		if (unlikely(rc != NETDEV_TX_OK)) {
 			if (rc & ~NETDEV_TX_MASK)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index bdea0ef..90c171f 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -396,7 +396,7 @@ static void skb_release_head_state(struct sk_buff *skb)
 #endif
 	if (skb->destructor) {
 		WARN_ON(in_irq());
-		skb->destructor(skb);
+		skb->destructor(skb, 1);
 	}
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 	nf_conntrack_put(skb->nfct);
diff --git a/net/core/sock.c b/net/core/sock.c
index 7effa1e..fcf67ea 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1259,7 +1259,7 @@ void __init sk_init(void)
 /*
  * Write buffer destructor automatically called from kfree_skb.
  */
-void sock_wfree(struct sk_buff *skb)
+void sock_wfree(struct sk_buff *skb, int final)
 {
 	struct sock *sk = skb->sk;
 	unsigned int len = skb->truesize;
@@ -1279,18 +1279,22 @@ void sock_wfree(struct sk_buff *skb)
 	 */
 	if (atomic_sub_and_test(len, &sk->sk_wmem_alloc))
 		__sk_free(sk);
+	skb->sk = NULL;
+	skb->destructor = NULL;
 }
 EXPORT_SYMBOL(sock_wfree);
 
 /*
  * Read buffer destructor automatically called from kfree_skb.
  */
-void sock_rfree(struct sk_buff *skb)
+void sock_rfree(struct sk_buff *skb, int final)
 {
 	struct sock *sk = skb->sk;
 
 	atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
 	sk_mem_uncharge(skb->sk, skb->truesize);
+	skb->sk = NULL;
+	skb->destructor = NULL;
 }
 EXPORT_SYMBOL(sock_rfree);
 
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 98dfcce..a3b0a95 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -973,9 +973,11 @@ EXPORT_SYMBOL_GPL(l2tp_xmit_core);
 
 /* Automatically called when the skb is freed.
  */
-static void l2tp_sock_wfree(struct sk_buff *skb)
+static void l2tp_sock_wfree(struct sk_buff *skb, int final)
 {
 	sock_put(skb->sk);
+	skb->sk = NULL;
+	skb->destructor = NULL;
 }
 
 /* For data skbs that we transmit, we associate with the tunnel socket
diff --git a/net/netfilter/nf_tproxy_core.c b/net/netfilter/nf_tproxy_core.c
index 5490fc3..17dd2d9 100644
--- a/net/netfilter/nf_tproxy_core.c
+++ b/net/netfilter/nf_tproxy_core.c
@@ -55,7 +55,7 @@ nf_tproxy_get_sock_v4(struct net *net, const u8 protocol,
 EXPORT_SYMBOL_GPL(nf_tproxy_get_sock_v4);
 
 static void
-nf_tproxy_destructor(struct sk_buff *skb)
+nf_tproxy_destructor(struct sk_buff *skb, int final)
 {
 	struct sock *sk = skb->sk;
 
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index f162d59..dc8e843 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -808,7 +808,7 @@ ring_is_full:
 	goto drop_n_restore;
 }
 
-static void tpacket_destruct_skb(struct sk_buff *skb)
+static void tpacket_destruct_skb(struct sk_buff *skb, int final)
 {
 	struct packet_sock *po = pkt_sk(skb->sk);
 	void *ph;
@@ -823,7 +823,7 @@ static void tpacket_destruct_skb(struct sk_buff *skb)
 		__packet_set_status(po, ph, TP_STATUS_AVAILABLE);
 	}
 
-	sock_wfree(skb);
+	sock_wfree(skb, final);
 }
 
 static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 3d9122e..17fca55 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1303,7 +1303,7 @@ static void unix_detach_fds(struct scm_cookie *scm, struct sk_buff *skb)
 		unix_notinflight(scm->fp->fp[i]);
 }
 
-static void unix_destruct_fds(struct sk_buff *skb)
+static void unix_destruct_fds(struct sk_buff *skb, int final)
 {
 	struct scm_cookie scm;
 	memset(&scm, 0, sizeof(scm));
@@ -1312,7 +1312,7 @@ static void unix_destruct_fds(struct sk_buff *skb)
 	/* Alas, it calls VFS */
 	/* So fscking what? fput() had been SMP-safe since the last Summer */
 	scm_destroy(&scm);
-	sock_wfree(skb);
+	sock_wfree(skb, final);
 }
 
 static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)



^ permalink raw reply related

* Re: rps perfomance WAS(Re: rps: question
From: Rick Jones @ 2010-04-15 20:25 UTC (permalink / raw)
  To: hadi; +Cc: David Miller, eric.dumazet, therbert, netdev, robert, xiaosuo,
	andi
In-Reply-To: <1271362581.23780.12.camel@bigi>

jamal wrote:
> On Thu, 2010-04-15 at 09:41 -0700, Rick Jones wrote:
> 
> 
>>IPS (~= RPS) was running on shared FSB HP9000's.  Now, that was also a BSD 
>>networking stack with netisrq's and the like.  TOPS (~= RFS) was also run on 
>>shared FSB HP9000s, as well as CC-NUMA HP9000s and Integrity systems.  TOPS was 
>>implemented in a Streams-based stack tracing its history to a common ancestor 
>>with Solaris (Mentat).
> 
> 
> Sounds interesting.
> Wikipedia information overload. Any arch description of the HP9000? 

I should have been more specific - HP 9000 Model 800's :) PA-RISC based business 
computers running HP-UX.  In the case of IPS, HP-UX 10.20 ca 1995 or so.

> Did your scheme use IPIs to message the other CPUs?

Netisrs were kernel processes one per CPU (back then a core, a processor and a 
CPU were one and the same :), and while we didn't call them IPI's, yes, it was a 
"soft interrupt" directed at the given processor to launch the netisr if it 
wasn't already running.

TOPS was similar, but was with Streams and that did/does have some kernel 
processes not everything would happen as a kernel process.

rick jones

HP 3000 Model 900's - by and large the same PA-RISC hardware but running MPE/XL 
(later called MPE/iX)
HP 9000 Model 700's - PA-RISC based workstations
HP 9000 Model 300's - Moto 68K-based workstations (replaced by the 700s)

^ permalink raw reply

* Re: rps perfomance WAS(Re: rps: question
From: jamal @ 2010-04-15 20:16 UTC (permalink / raw)
  To: Rick Jones
  Cc: David Miller, eric.dumazet, therbert, netdev, robert, xiaosuo,
	andi
In-Reply-To: <4BC741AE.3000108@hp.com>

On Thu, 2010-04-15 at 09:41 -0700, Rick Jones wrote:

> IPS (~= RPS) was running on shared FSB HP9000's.  Now, that was also a BSD 
> networking stack with netisrq's and the like.  TOPS (~= RFS) was also run on 
> shared FSB HP9000s, as well as CC-NUMA HP9000s and Integrity systems.  TOPS was 
> implemented in a Streams-based stack tracing its history to a common ancestor 
> with Solaris (Mentat).

Sounds interesting.
Wikipedia information overload. Any arch description of the HP9000? 
Did your scheme use IPIs to message the other CPUs?

cheers,
jamal 


^ permalink raw reply


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