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2008-09-23tcp: Fix queue traversal in tcp_use_frto().David S. Miller
We must check tcp_skb_is_last() before doing a tcp_write_queue_next(). Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-23tcp: Fix order of tests in tcp_retransmit_skb()David S. Miller
tcp_write_queue_next() must only be made if we know that tcp_skb_is_last() evaluates to false. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-23neigh: Remove by-hand SKB queue handling.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22pkt_sched: Check the state of tx_queue in dequeue_skb()Jarek Poplawski
Check in dequeue_skb() the state of tx_queue for requeued skb to save on locking and re-requeuing, and possibly remove the current check in qdisc_run(). Based on the idea of Alexander Duyck. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22pkt_sched: Always use q->requeue in dev_requeue_skb().David S. Miller
There is no reason to call into the complicated qdiscs just to remember the last SKB where we found the device blocked. The SKB is outside of the qdiscs realm at this point. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22pkt_sched: Make qdisc->gso_skb a list.David S. Miller
The idea is that we can use this to get rid of ->requeue(). Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22net: network device name ifalias supportStephen Hemminger
This patch add support for keeping an additional character alias associated with an network interface. This is useful for maintaining the SNMP ifAlias value which is a user defined value. Routers use this to hold information like which circuit or line it is connected to. It is just an arbitrary text label on the network device. There are two exposed interfaces with this patch, the value can be read/written either via netlink or sysfs. This could be maintained just by the snmp daemon, but it is more generally useful for other management tools, and the kernel is good place to act as an agreed upon interface to store it. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: emit errors when a packet cannot be delivered locallyRemi Denis-Courmont
When there is no listener socket for a received packet, send an error back to the sender. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: proc interface for port rangeRemi Denis-Courmont
Phonet endpoints are bound to individual ports. This provides a /proc/sys/net/phonet (or sysctl) interface for selecting the range of automatically allocated ports (much like the ip_local_port_range with IPv4). Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: provide MAC header operationsRemi Denis-Courmont
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: Phonet datagram transport protocolRemi Denis-Courmont
This provides the basic SOCK_DGRAM transport protocol for Phonet. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: common socket glueRemi Denis-Courmont
This provides the socket API for the Phonet protocols family. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: Netlink interfaceRemi Denis-Courmont
This provides support for configuring Phonet addresses, notifying Phonet configuration changes, and dumping the configuration. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: network device and address handlingRemi Denis-Courmont
This provides support for adding Phonet addresses to and removing Phonet addresses from network devices. Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: add CONFIG_PHONETRemi Denis-Courmont
Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: PF_PHONET protocol family supportRemi Denis-Courmont
This is the basis for the Phonet protocol families, and introduces the ETH_P_PHONET packet type and the PF_PHONET socket family. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: global definitionsRemi Denis-Courmont
Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22ipsec: Fix xfrm_state_walk raceHerbert Xu
As discovered by Timo Teräs, the currently xfrm_state_walk scheme is racy because if a second dump finishes before the first, we may free xfrm states that the first dump would walk over later. This patch fixes this by storing the dumps in a list in order to calculate the correct completion counter which cures this problem. I've expanded netlink_cb in order to accomodate the extra state related to this. It shouldn't be a big deal since netlink_cb is kmalloced for each dump and we're just increasing it by 4 or 8 bytes. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22net/atm/lec.c: drop code after returnJulia Lawall
The break after the return serves no purpose. Signed-off-by: Julia Lawall <julia@diku.dk> Reviewed-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22net: em_cmp.c use unaligned access helpersHarvey Harrison
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22netfilter: xt_time gives a wrong monthday in a leap yearKaihui Luo
The function localtime_3 in xt_time.c gives a wrong monthday in a leap year after 28th 2. calculating monthday should use the array days_since_leapyear[] not days_since_year[] in a leap year. Signed-off-by: Kaihui Luo <kaih.luo@gmail.com> Acked-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-21net: Remove __skb_insert() calls outside of skbuff internals.David S. Miller
This minor cleanup simplifies later changes which will convert struct sk_buff and friends over to using struct list_head. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-21tcp: advertise MSS requested by userTom Quetchenbach
I'm trying to use the TCP_MAXSEG option to setsockopt() to set the MSS for both sides of a bidirectional connection. man tcp says: "If this option is set before connection establishment, it also changes the MSS value announced to the other end in the initial packet." However, the kernel only uses the MTU/route cache to set the advertised MSS. That means if I set the MSS to, say, 500 before calling connect(), I will send at most 500-byte packets, but I will still receive 1500-byte packets in reply. This is a bug, either in the kernel or the documentation. This patch (applies to latest net-2.6) reduces the advertised value to that requested by the user as long as setsockopt() is called before connect() or accept(). This seems like the behavior that one would expect as well as that which is documented. I've tried to make sure that things that depend on the advertised MSS are set correctly. Signed-off-by: Tom Quetchenbach <virtualphtn@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20net: Use hton[sl]() instead of __constant_hton[sl]() where applicableArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20multiq: requeue should rewind the current_bandAlexander Duyck
Currently dequeueing a packet and requeueing the same packet will cause a different packet to be pulled on the next dequeue. This change forces requeue to rewind the current_band. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: back retransmit_high when it over-estimatedIlpo Järvinen
If lost skb is sacked, we might have nothing to retransmit as high as the retransmit_high is pointing to, so place it lower to avoid unnecessary walking. This is mainly for the case where high L'ed skbs gets sacked. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: don't clear lost_skb_hint when not necessaryIlpo Järvinen
Most importantly avoid doing it with cumulative ACK. However, since we have lost_cnt_hint in the picture as well needing adjustments, it's not as trivial as dealing with retransmit_skb_hint (and cannot be done in the all place we could trivially leave retransmit_skb_hint untouched). With the previous patch, this should mostly remove O(n^2) behavior while cumulative ACKs start flowing once rexmit after a lossy round-trip made it through. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: don't clear retransmit_skb_hint when not necessaryIlpo Järvinen
Most importantly avoid doing it with cumulative ACK. Not clearing means that we no longer need n^2 processing in resolution of each fast recovery. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: remove retransmit_skb_hint clearing from failureIlpo Järvinen
This doesn't much sense here afaict, probably never has. Since fragmenting and collapsing deal the hints by themselves, there should be very little reason for the rexmit loop to do that. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: reorganize retransmit code loopsIlpo Järvinen
Both loops are quite similar, so they can be combined with little effort. As a result, forward_skb_hint becomes obsolete as well. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: remove tp->lost_out guard to make joining diff nicerIlpo Järvinen
The validity of the retransmit_high must then be ensured if no L'ed skb exits! This makes a minor change to behavior, we now have to iterate the head to find out that the loop terminates. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: Reorganize skb tagbit checksIlpo Järvinen
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: remove obsolete validity concernIlpo Järvinen
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: add tcp_can_forward_retransmitIlpo Järvinen
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: No need to clear retransmit_skb_hint when SACKingIlpo Järvinen
Because lost counter no longer requires tuning, this is trivial to remove (the tuning wouldn't have been too hard either) because no "new" retransmittable skb appeared below retransmit_skb_hint when SACKing for sure. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: Kill precaution that's very likely obsoleteIlpo Järvinen
I suspect it might have been related to the changed amount of lost skbs, which was counted by retransmit_cnt_hint that got changed. The place for this clearing was very illogical anyway, it should have been after the LOST-bit clearing loop to make any sense. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: convert retransmit_cnt_hint to seqnoIlpo Järvinen
Main benefit in this is that we can then freely point the retransmit_skb_hint to anywhere we want to because there's no longer need to know what would be the count changes involve, and since this is really used only as a terminator, unnecessary work is one time walk at most, and if some retransmissions are necessary after that point later on, the walk is not full waste of time anyway. Since retransmit_high must be kept valid, all lost markers must ensure that. Now I also have learned how those "holes" in the rexmittable skbs can appear, mtu probe does them. So I removed the misleading comment as well. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: add helper for lost bit togglingIlpo Järvinen
This useful because we'd need to verifying soon in many places which makes things slightly more complex than it used to be. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: move tcp_verify_retransmit_hintIlpo Järvinen
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: Partial hint clearing has again become meaninglessIlpo Järvinen
Ie., the difference between partial and all clearing doesn't exists anymore since the SACK optimizations got dropped by an sacktag rewrite. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-19Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2008-09-18ISDN sockets: add missing lockdep stringsRémi Denis-Courmont
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-17ipvs: change some __constant_htons() to htons()Brian Haley
Change __contant_htons() to htons() in the IPVS code when not in an initializer. -Brian Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: Julius Volz <juliusv@google.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2008-09-17ipvs: add __aquire/__release annotations to ↵Simon Horman
ip_vs_info_seq_start/ip_vs_info_seq_stop This teaches sparse that the following are not problems: make C=1 CHECK net/ipv4/ipvs/ip_vs_ctl.c net/ipv4/ipvs/ip_vs_ctl.c:1793:14: warning: context imbalance in 'ip_vs_info_seq_start' - wrong count at exit net/ipv4/ipvs/ip_vs_ctl.c:1842:13: warning: context imbalance in 'ip_vs_info_seq_stop' - unexpected unlock Acked-by: Sven Wegener <sven.wegener@stealer.net> Acked-by: Julius Volz <juliusv@google.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2008-09-17ipvs: supply a valid 0 address to ip_vs_conn_new()Simon Horman
ip_vs_conn_new expects a union nf_inet_addr as the type for its address parameters, not a plain integer. This problem was detected by sparse. make C=1 CHECK net/ipv4/ipvs/ip_vs_core.c net/ipv4/ipvs/ip_vs_core.c:469:9: warning: Using plain integer as NULL pointer Acked-by: Sven Wegener <sven.wegener@stealer.net> Acked-by: Julius Volz <juliusv@google.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2008-09-17ipvs: only unlock in ip_vs_edit_service() if already lockedSimon Horman
Jumping to out unlocks __ip_vs_svc_lock, but that lock is not taken until after code that may jump to out. This problem was detected by sparse. make C=1 CHECK net/ipv4/ipvs/ip_vs_ctl.c net/ipv4/ipvs/ip_vs_ctl.c:1332:2: warning: context imbalance in 'ip_vs_edit_service' - unexpected unlock Acked-by: Sven Wegener <sven.wegener@stealer.net> Acked-by: Julius Volz <juliusv@google.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2008-09-15mac80211 : Fix mode change hard_start_xmit functionAbhijeet Kolekar
When monitor mode is changed to BSS or IBSS, data trasnfer can not happen because proper transmit function is not assigend for BSS ,IBSS mode. This patch fixes this problem by assigning the ieee80211_subif_start_xmit to device's hard_start_xmit function. Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com> Acked-by: Zhu Yi <yi.zhu@intel.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-15mac80211: remove debug frame dumpingJohannes Berg
You can just pull up a monitor interface to get much more detailed information, or, when debugging a driver, insert dump code into the driver (which usually you will have to do anyway to dump the driver-specific information). Hence this option is useless. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-15mac80211: remove beacon countersJohannes Berg
The beacon counters mac80211 keeps are only used for debugfs, unfortunately, they are incorrect for many hardware designs, namely any design that has a beacon template. Hence, remove the counters so we don't create the impression they are usable. This also allows removing the beacon MESH #ifdef again. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-15mac80211: fix sta_info kernel-doc warningJohannes Berg
Sorry, forgot to run kernel-doc and just got the output from the nightly run by email, this fixes a warning which I introduced when doing the first RC API cleanups. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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