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2008-01-28[VLAN]: Move protocol determination to seperate functionPavel Emelyanov
I think, that we can make this code flow easier to understand by introducing the vlan_set_encap_proto() function (I hope the name is good) to setup the skb proto and merge the paths calling netif_rx() together. [Patrick: Modified to apply on top of my previous patches] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Clean up vlan_skb_recv()Patrick McHardy
- remove three instances of identical code - remove unnecessary NULL initialization - remove obvious and unnecessary comments Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Update list addressPatrick McHardy
VLAN related mail should go to netdev. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: checkpatch cleanupsPatrick McHardy
Checkpatch cleanups, consisting mainly of overly long lines and missing spaces. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Turn VLAN_DEV_INFO into inline functionPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Simplify vlan unregistrationPatrick McHardy
Keep track of the number of VLAN devices in a vlan group. This allows to have the caller sense when the group is going to be destroyed and stop using it, which in turn allows to remove the wrapper around unregister_vlan_dev for the NETDEV_UNREGISTER notifier and avoid iterating over all possible VLAN ids whenever a device in unregistered. Also fix what looks like a use-after-free (but is actually safe since we're holding the RTNL), the real_dev reference should not be dropped while we still use it. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Clean up unregister_vlan_devPatrick McHardy
Save two levels of indentation by aborting on error conditions, remove unnecessary initialization to NULL and remove two obvious comments. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Clean up initialization codePatrick McHardy
- move module init/exit functions to end of file, remove some now unnecessary forward declarations - remove some obvious comments - clean up proc init function and move a proc-related printk there Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Remove non-implemented ioctlsPatrick McHardy
The GET_VLAN_INGRESS_PRIORITY_CMD/GET_VLAN_EGRESS_PRIORITY_CMD ioctls are not implemented and won't be, new functionality will be added to the netlink interface. Remove the code and make the ioctl handler return -EOPNOTSUPP for unknown commands instead of -EINVAL. Also remove a comment about passing unknown commands to the underlying device, that doesn't make any sense since its a VLAN specific ioctl and if its not implemented here, its implemented nowhere. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Clean up debugging and printksPatrick McHardy
- use pr_* functions and common prefix for non-device related messages - remove VLAN_ printk levels - kill lots of useless debugging statements - remove a few unnecessary printks like for double VID registration (already returns -EEXIST) and kill of a number of unnecessary checks in vlan_proc_{add,rem}_dev() that are already performed by the caller Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Kill useless checkPatrick McHardy
vlan->real_dev is always equal to the device since thats what we used for the lookup. It doesn't even seem worth a WARN_ON or BUG_ON. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Move device setup to vlan_dev.cPatrick McHardy
Move device setup to vlan_dev.c and make all the VLAN device methods static. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Use dev->statsPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Kill useless VLAN_NAME definePatrick McHardy
The only user already includes __FUNCTION__ (vlan_proto_init) in the output, which is enough to identify what the message is about. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: remove useless printkPatrick McHardy
The printk about ingress qdisc registration error can't be triggered under normal circumstances. Since register_qdisc only fails for two identical registrations, the only way to trigger it is by loading the sch_ingress modules multiple times under different names, in which case we already return -EEXIST to userspace. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: avoid a few #ifdefsPatrick McHardy
Move the repeating "ifndef CONFIG_NET_CLS_ACT/ifdef CONFIG_NETFILTER" ifdefs into a single condition. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: move dependencies to KconfigPatrick McHardy
Instead of complaining at scheduler initialization time, check the dependencies in Kconfig. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: remove unnecessary opsPatrick McHardy
- ->reset is optional - sch_api provides identical defaults for ->dequeue/->requeue - ->drop can't happen since ingress never has a parent qdisc Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: return proper error code in ingress_graft()Patrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: remove unused inner qdiscPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: remove qdisc_priv() wrapperPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: remove excessive debuggingPatrick McHardy
Remove excessive debugging statements and some "future use" stuff. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET_SCHED]: sch_ingress: formatting fixesPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[PKT_SCHED] SFQ: whitespace cleanupStephen Hemminger
Add whitespace around operators, and add a few blank lines to improve readability. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[PKT_SCHED] SFQ: use net_randomStephen Hemminger
SFQ doesn't need true random numbers, it is only using them to salt a hash. Therefore it is better to use net_random() and avoid any possible problems with depleting the entropy pool. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[PKT_SCHED] SFQ: timer is deferrableStephen Hemminger
The perturbation timer used for re-keying can be deferred, it doesn't need to be deterministic. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: Process FIB rule action in the context of the namespace.Denis V. Lunev
Save namespace context on the fib rule at the rule creation time and call routing lookup in the correct namespace. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: FIB rules API cleanup.Denis V. Lunev
Remove struct net from fib_rules_register(unregister)/notify_change paths and diet code size a bit. add/remove: 0/0 grow/shrink: 10/12 up/down: 35/-100 (-65) function old new delta notify_rule_change 273 280 +7 trie_show_stats 471 475 +4 fn_trie_delete 473 477 +4 fib_rules_unregister 144 148 +4 fib4_rule_compare 119 123 +4 resize 2842 2845 +3 fn_trie_select_default 515 518 +3 inet_sk_rebuild_header 836 838 +2 fib_trie_seq_show 764 766 +2 __devinet_sysctl_register 276 278 +2 fn_trie_lookup 1124 1123 -1 ip_fib_check_default 133 131 -2 devinet_conf_sysctl 223 221 -2 snmp_fold_field 126 123 -3 fn_trie_insert 2091 2086 -5 inet_create 876 870 -6 fib4_rules_init 197 191 -6 fib_sync_down 452 444 -8 inet_gso_send_check 334 325 -9 fib_create_info 3003 2991 -12 fib_nl_delrule 568 553 -15 fib_nl_newrule 883 852 -31 Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[FIB]: Add netns to fib_rules_ops.Denis V. Lunev
The backward link from FIB rules operations to the network namespace will allow to simplify the API a bit. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[SCTP]: Correctly initialize error when parameter validation failed.Vlad Yasevich
When parameter validation fails, there should be error causes that specify what type of failure we've encountered. If the causes are not there, we lacked memory to allocated them. Thus make that the default value for the error. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IrDA]: Irport removal - part 1Adrian Bunk
This patch removes IrPORT and the old dongle drivers (all off them have replacement drivers). Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IrDA]: Frame length validation.Robie Basak
When using a stir4200-based USB adaptor to talk to a device that uses an mcp2150, the stir4200 sometimes drops an incoming frame causing the mcp2150 to try and retransmit the lost frame. In this combination, the next frame received from the mcp2150 is often invalid - either an empty i:rsp or an IrCOMM i:rsp with an invalid clen. These corner cases are now checked. Signed-off-by: Robie Basak <rb-oss-1@justgohome.co.uk> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IrDA]: Resend frames on timeout.Robie Basak
When final timer expires, it might also mean that the i:cmd wasn't received properly. If we have rejected frames, we can try to resend them. Signed-off-by: Robie Basak <rb-oss-1@justgohome.co.uk> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: Namespace stop vs 'ip r l' race.Denis V. Lunev
During network namespace stop process kernel side netlink sockets belonging to a namespace should be closed. They should not prevent namespace to stop, so they do not increment namespace usage counter. Though this counter will be put during last sock_put. The raplacement of the correct netns for init_ns solves the problem only partial as socket to be stoped until proper stop is a valid netlink kernel socket and can be looked up by the user processes. This is not a problem until it resides in initial namespace (no processes inside this net), but this is not true for init_net. So, hold the referrence for a socket, remove it from lookup tables and only after that change namespace and perform a last put. Signed-off-by: Denis V. Lunev <den@openvz.org> Tested-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: Consolidate kernel netlink socket destruction.Denis V. Lunev
Create a specific helper for netlink kernel socket disposal. This just let the code look better and provides a ground for proper disposal inside a namespace. Signed-off-by: Denis V. Lunev <den@openvz.org> Tested-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: Memory leak on network namespace stop.Denis V. Lunev
Network namespace allocates 2 kernel netlink sockets, fibnl & rtnl. These sockets should be disposed properly, i.e. by sock_release. Plain sock_put is not enough. Signed-off-by: Denis V. Lunev <den@openvz.org> Tested-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: Double free in netlink_release.Denis V. Lunev
Netlink protocol table is global for all namespaces. Some netlink protocols have been virtualized, i.e. they have per/namespace netlink socket. This difference can easily lead to double free if more than 1 namespace is started. Count the number of kernel netlink sockets to track that this table is not used any more. Signed-off-by: Denis V. Lunev <den@openvz.org> Tested-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: Fix ip6_frag ctlDaniel Lezcano
Alexey Dobriyan reported an oops when unsharing the network indefinitely inside a loop. This is because the ip6_frag is not per namespace while the ctls are. That happens at the fragment timer expiration: inet_frag_secret_rebuild function is called and this one restarts the timer using the value stored inside the sysctl field. "mod_timer(&f->secret_timer, now + f->ctl->secret_interval);" When the network is unshared, ip6_frag.ctl is initialized with the new sysctl instances, but ip6_frag has only one instance. A race in this case will appear because f->ctl can be modified during the read access in the timer callback. Until the ip6_frag is not per namespace, I discard the assignation to the ctl field of ip6_frags in ip6_frag_sysctl_init when the network namespace is not the init net. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28wireless: fix '!x & y' typo'sRoel Kluin
Fix priority mistakes similar to '!x & y' Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28[BRIDGE]: Remove unused include of a header file in ebtables.cRami Rosen
In net/bridge/netfilter/ebtables.c, - remove unused include of a header file (linux/tty.h) and remove the corresponding comment above it. Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[SCTP]: Fix build warning in sctp_sf_do_5_1C_ack().David S. Miller
Reported by Andrew Morton. net/sctp/sm_statefuns.c: In function 'sctp_sf_do_5_1C_ack': net/sctp/sm_statefuns.c:484: warning: 'error' may be used uninitialized in this function Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][DST] dst: pass the dst_ops as parameter to the gc functionsDaniel Lezcano
The garbage collection function receive the dst_ops structure as parameter. This is useful for the next incoming patchset because it will need the dst_ops (there will be several instances) and the network namespace pointer (contained in the dst_ops). The protocols which do not take care of the namespaces will not be impacted by this change (expect for the function signature), they do just ignore the parameter. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] FIB_HASH: Reduce memory needs and speedup lookupsEric Dumazet
Currently, sizeof(struct fib_alias) is 24 or 48 bytes on 32/64 bits arches. Because of SLAB_HWCACHE_ALIGN requirement, these are rounded to 32 and 64 bytes respectively. This patch moves rcu to the end of fib_alias, and conditionally defines it only for CONFIG_IP_FIB_TRIE. We also remove SLAB_HWCACHE_ALIGN requirement for fib_alias and fib_node objects because it is not necessary. (BTW SLUB currently denies it for objects smaller than cache_line_size() / 2, but not SLAB) Finally, sizeof(fib_alias) go back to 16 and 32 bytes. Then, we can embed one fib_alias on each fib_node, to favor locality. Most of the time access to the fib_alias will be free because one cache line contains both the list head (fn_alias) and (one of) the list element. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[FIB]: Fix rcu_dereference() abuses in fib_trie.cEric Dumazet
node_parent() and tnode_get_child() currently use rcu_dereference(). These functions are called from both - readers only paths (where rcu_dereference() is needed), and - writer path (where rcu_dereference() is not needed) To make explicit where rcu_dereference() is really needed, I introduced new node_parent_rcu() and tnode_get_child_rcu() functions which use rcu_dereference(), while node_parent() and tnode_get_child() dont use it. Then I changed calling sites where rcu_dereference() was really needed to call the _rcu() variants. This should have no impact but for alpha architecture, and may help future sparse checks. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[ROSE]: Supress sparse warningsEric Dumazet
CHECK net/rose/af_rose.c net/rose/af_rose.c:125:11: warning: expensive signed divide net/rose/af_rose.c:976:46: warning: expensive signed divide net/rose/af_rose.c:1379:13: warning: context imbalance in 'rose_info_start' - wrong count at exit net/rose/af_rose.c:1406:13: warning: context imbalance in 'rose_info_stop' - unexpected unlock CHECK net/rose/rose_in.c net/rose/rose_in.c:185:25: warning: expensive signed divide CHECK net/rose/rose_route.c net/rose/rose_route.c:997:46: warning: expensive signed divide net/rose/rose_route.c:1070:13: warning: context imbalance in 'rose_node_start' - wrong count at exit net/rose/rose_route.c:1093:13: warning: context imbalance in 'rose_node_stop' - unexpected unlock net/rose/rose_route.c:1146:13: warning: context imbalance in 'rose_neigh_start' - wrong count at exit net/rose/rose_route.c:1169:13: warning: context imbalance in 'rose_neigh_stop' - unexpected unlock net/rose/rose_route.c:1229:13: warning: context imbalance in 'rose_route_start' - wrong count at exit net/rose/rose_route.c:1252:13: warning: context imbalance in 'rose_route_stop' - unexpected unlock Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[ATM]: Suppress some sparse warningsEric Dumazet
CHECK net/atm/br2684.c net/atm/br2684.c:665:13: warning: context imbalance in 'br2684_seq_start' - wrong count at exit net/atm/br2684.c:676:13: warning: context imbalance in 'br2684_seq_stop' - unexpected unlock CHECK net/atm/lec.c net/atm/lec.c:196:23: warning: expensive signed divide CHECK net/atm/proc.c net/atm/proc.c:151:14: warning: context imbalance in 'vcc_seq_start' - wrong count at exit net/atm/proc.c:154:13: warning: context imbalance in 'vcc_seq_stop' - unexpected unlock Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[APPLETALK]: Annotations to clear sparse warningsEric Dumazet
CHECK net/appletalk/aarp.c net/appletalk/aarp.c:951:14: warning: context imbalance in 'aarp_seq_start' - wrong count at exit net/appletalk/aarp.c:977:13: warning: context imbalance in 'aarp_seq_stop' - unexpected unlock CHECK net/appletalk/atalk_proc.c net/appletalk/atalk_proc.c:34:11: warning: context imbalance in 'atalk_seq_interface_start' - wrong count at exit net/appletalk/atalk_proc.c:54:13: warning: context imbalance in 'atalk_seq_interface_stop' - unexpected unlock net/appletalk/atalk_proc.c:93:11: warning: context imbalance in 'atalk_seq_route_start' - wrong count at exit net/appletalk/atalk_proc.c:113:13: warning: context imbalance in 'atalk_seq_route_stop' - unexpected unlock net/appletalk/atalk_proc.c:161:11: warning: context imbalance in 'atalk_seq_socket_start' - wrong count at exit net/appletalk/atalk_proc.c:178:13: warning: context imbalance in 'atalk_seq_socket_stop' - unexpected unlock Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_conntrack: make print_conntrack function optional for l4protosPatrick McHardy
Allows to remove five empty implementations. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_conntrack: remove print_conntrack function from l3protosPatrick McHardy
Its unused and unlikely to ever be used. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_conntrack: clean up a few header filesPatrick McHardy
- Remove declarations of non-existing variables and functions - Move helper init/cleanup function declarations to nf_conntrack_helper.h - Remove unneeded __nf_conntrack_attach declaration and make it static Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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