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* Merge branch 'master' of ↵David S. Miller2010-06-242-6/+4
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/ipv4/ip_output.c
| * bridge: fdb cleanup runs too oftenstephen hemminger2010-06-171-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | It is common in end-node, non STP bridges to set forwarding delay to zero; which causes the forwarding database cleanup to run every clock tick. Change to run only as soon as needed or at next ageing timer interval which ever is sooner. Use round_jiffies_up macro rather than attempting round up by changing value. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: Fix OOM crash in deliver_cloneHerbert Xu2010-06-161-2/+2
| | | | | | | | | | | | | | | | | | The bridge multicast patches introduced an OOM crash in the forward path, when deliver_clone fails to clone the skb. Reported-by: Mark Wagner <mwagner@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bridge: 64bit rx/tx countersEric Dumazet2010-06-233-13/+23
| | | | | | | | | | | | | | | | | | | | | | Use u64_stats_sync infrastructure to provide 64bit rx/tx counters even on 32bit hosts. It is safe to use a single u64_stats_sync for rx and tx, because BH is disabled on both, and we use per_cpu data. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bridge: Add const to dummy br_netpoll_send_skbHerbert Xu2010-06-161-1/+1
| | | | | | | | | | | | | | | | The version of br_netpoll_send_skb used when netpoll is off is missing a const thus causing a warning. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2010-06-151-4/+2
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
| * \ Merge branch 'master' of /repos/git/net-next-2.6Patrick McHardy2010-06-156-16/+27
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: include/net/netfilter/xt_rateest.h net/bridge/br_netfilter.c net/netfilter/nf_conntrack_core.c Signed-off-by: Patrick McHardy <kaber@trash.net>
| * | | netfilter: br_netfilter: use skb_set_noref()Eric Dumazet2010-06-011-4/+2
| | |/ | |/| | | | | | | | | | | | | | | | | | | Avoid dirtying bridge_parent_rtable refcount, using new dst noref infrastructure. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
* | | bridge: use rx_handler_data pointer to store net_bridge_port pointerJiri Pirko2010-06-1511-38/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Register net_bridge_port pointer as rx_handler data pointer. As br_port is removed from struct net_device, another netdev priv_flag is added to indicate the device serves as a bridge port. Also rcuized pointers are now correctly dereferenced in br_fdb.c and in netfilter parts. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net: add rx_handler data pointerJiri Pirko2010-06-151-1/+1
| | | | | | | | | | | | | | | | | | | | | Add possibility to register rx_handler data pointer along with a rx_handler. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | bridge: Fix netpoll supportHerbert Xu2010-06-154-84/+120
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are multiple problems with the newly added netpoll support: 1) Use-after-free on each netpoll packet. 2) Invoking unsafe code on netpoll/IRQ path. 3) Breaks when netpoll is enabled on the underlying device. This patch fixes all of these problems. In particular, we now allocate proper netpoll structures for each underlying device. We only allow netpoll to be enabled on the bridge when all the devices underneath it support netpoll. Once it is enabled, we do not allow non-netpoll devices to join the bridge (until netpoll is disabled again). This allows us to do away with the npinfo juggling that caused problem number 1. Incidentally this patch fixes number 2 by bypassing unsafe code such as multicast snooping and netfilter. Reported-by: Qianfeng Zhang <frzhang@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | bridge: Remove redundant npinfo NULL settingHerbert Xu2010-06-151-1/+0
| |/ |/| | | | | | | | | | | | | Now that netpoll always zaps npinfo we no longer need to do it in bridge. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net-next: remove useless union keywordChangli Gao2010-06-112-11/+11
| | | | | | | | | | | | | | | | | | | | remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: replace hooks in __netif_receive_skb V5Jiri Pirko2010-06-024-7/+18
|/ | | | | | | | | | | | | | What this patch does is it removes two receive frame hooks (for bridge and for macvlan) from __netif_receive_skb. These are replaced them with a single hook for both. It only supports one hook per device because it makes no sense to do bridging and macvlan on the same device. Then a network driver (of virtual netdev like macvlan or bridge) can register an rx_handler for needed net device. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sysfs: add struct file* to bin_attr callbacksChris Wright2010-05-211-1/+1
| | | | | | | | | This allows bin_attr->read,write,mmap callbacks to check file specific data (such as inode owner) as part of any privilege validation. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* bridge: fix build for CONFIG_SYSFS disabledRandy Dunlap2010-05-181-1/+1
| | | | | | | | | | | | Fix build when CONFIG_SYSFS is not enabled: net/bridge/br_if.c:136: error: 'struct net_bridge_port' has no member named 'sysfs_name' Note: dev->name == sysfs_name except when change name is in progress, and we are protected from that by RTNL mutex. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bridge: update sysfs link names if port device names have changedSimon Arlott2010-05-164-6/+41
| | | | | | | | | | | | | | | | | | | | | Links for each port are created in sysfs using the device name, but this could be changed after being added to the bridge. As well as being unable to remove interfaces after this occurs (because userspace tools don't recognise the new name, and the kernel won't recognise the old name), adding another interface with the old name to the bridge will cause an error trying to create the sysfs link. This fixes the problem by listening for NETDEV_CHANGENAME notifications and renaming the link. https://bugzilla.kernel.org/show_bug.cgi?id=12743 Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bridge: change console message interfacestephen hemminger2010-05-1610-62/+62
| | | | | | | | | | Use one set of macro's for all bridge messages. Note: can't use netdev_XXX macro's because bridge is purely virtual and has no device parent. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bridge: netpoll cleanupstephen hemminger2010-05-163-28/+39
| | | | | | | | | Move code around so that the ifdef for NETPOLL_CONTROLLER don't have to show up in main code path. The control functions should be in helpers that are only compiled if needed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: bridge-netfilter: fix crash in br_nf_forward_finish()Bart De Schuymer2010-05-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ 4593.956206] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [ 4593.956219] IP: [<ffffffffa03357a4>] br_nf_forward_finish+0x154/0x170 [bridge] [ 4593.956232] PGD 195ece067 PUD 1ba005067 PMD 0 [ 4593.956241] Oops: 0000 [#1] SMP [ 4593.956248] last sysfs file: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:08/ATK0110:00/hwmon/hwmon0/temp2_label [ 4593.956253] CPU 3 ... [ 4593.956380] Pid: 29512, comm: kvm Not tainted 2.6.34-rc7-net #195 P6T DELUXE/System Product Name [ 4593.956384] RIP: 0010:[<ffffffffa03357a4>] [<ffffffffa03357a4>] br_nf_forward_finish+0x154/0x170 [bridge] [ 4593.956395] RSP: 0018:ffff880001e63b78 EFLAGS: 00010246 [ 4593.956399] RAX: 0000000000000608 RBX: ffff880057181700 RCX: ffff8801b813d000 [ 4593.956402] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff880057181700 [ 4593.956406] RBP: ffff880001e63ba8 R08: ffff8801b9d97000 R09: ffffffffa0335650 [ 4593.956410] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801b813d000 [ 4593.956413] R13: ffffffff81ab3940 R14: ffff880057181700 R15: 0000000000000002 [ 4593.956418] FS: 00007fc40d380710(0000) GS:ffff880001e60000(0000) knlGS:0000000000000000 [ 4593.956422] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [ 4593.956426] CR2: 0000000000000018 CR3: 00000001ba1d7000 CR4: 00000000000026e0 [ 4593.956429] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4593.956433] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 4593.956437] Process kvm (pid: 29512, threadinfo ffff8801ba566000, task ffff8801b8003870) [ 4593.956441] Stack: [ 4593.956443] 0000000100000020 ffff880001e63ba0 ffff880001e63ba0 ffff880057181700 [ 4593.956451] <0> ffffffffa0335650 ffffffff81ab3940 ffff880001e63bd8 ffffffffa03350e6 [ 4593.956462] <0> ffff880001e63c40 000000000000024d ffff880057181700 0000000080000000 [ 4593.956474] Call Trace: [ 4593.956478] <IRQ> [ 4593.956488] [<ffffffffa0335650>] ? br_nf_forward_finish+0x0/0x170 [bridge] [ 4593.956496] [<ffffffffa03350e6>] NF_HOOK_THRESH+0x56/0x60 [bridge] [ 4593.956504] [<ffffffffa0335282>] br_nf_forward_arp+0x112/0x120 [bridge] [ 4593.956511] [<ffffffff813f7184>] nf_iterate+0x64/0xa0 [ 4593.956519] [<ffffffffa032f920>] ? br_forward_finish+0x0/0x60 [bridge] [ 4593.956524] [<ffffffff813f722c>] nf_hook_slow+0x6c/0x100 [ 4593.956531] [<ffffffffa032f920>] ? br_forward_finish+0x0/0x60 [bridge] [ 4593.956538] [<ffffffffa032f800>] ? __br_forward+0x0/0xc0 [bridge] [ 4593.956545] [<ffffffffa032f86d>] __br_forward+0x6d/0xc0 [bridge] [ 4593.956550] [<ffffffff813c5d8e>] ? skb_clone+0x3e/0x70 [ 4593.956557] [<ffffffffa032f462>] deliver_clone+0x32/0x60 [bridge] [ 4593.956564] [<ffffffffa032f6b6>] br_flood+0xa6/0xe0 [bridge] [ 4593.956571] [<ffffffffa032f800>] ? __br_forward+0x0/0xc0 [bridge] Don't call nf_bridge_update_protocol() for ARP traffic as skb->nf_bridge isn't used in the ARP case. Reported-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Bart De Schuymer <bdschuym@pandora.be> Signed-off-by: Patrick McHardy <kaber@trash.net>
* Merge branch 'master' of git://dev.medozas.de/linuxPatrick McHardy2010-05-1119-35/+34
|\
| * netfilter: xtables: change hotdrop pointer to direct modificationJan Engelhardt2010-05-111-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | Since xt_action_param is writable, let's use it. The pointer to 'bool hotdrop' always worried (8 bytes (64-bit) to write 1 byte!). Surprisingly results in a reduction in size: text data bss filename 5457066 692730 357892 vmlinux.o-prev 5456554 692730 357892 vmlinux.o Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| * netfilter: xtables: deconstify struct xt_action_param for matchesJan Engelhardt2010-05-1110-10/+10
| | | | | | | | | | | | | | | | | | In future, layer-3 matches will be an xt module of their own, and need to set the fragoff and thoff fields. Adding more pointers would needlessy increase memory requirements (esp. so for 64-bit, where pointers are wider). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| * netfilter: xtables: substitute temporary defines by final nameJan Engelhardt2010-05-1118-18/+18
| | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| * netfilter: xtables: combine struct xt_match_param and xt_target_paramJan Engelhardt2010-05-111-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The structures carried - besides match/target - almost the same data. It is possible to combine them, as extensions are evaluated serially, and so, the callers end up a little smaller. text data bss filename -15318 740 104 net/ipv4/netfilter/ip_tables.o +15286 740 104 net/ipv4/netfilter/ip_tables.o -15333 540 152 net/ipv6/netfilter/ip6_tables.o +15269 540 152 net/ipv6/netfilter/ip6_tables.o Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* | Merge branch 'master' of /repos/git/net-next-2.6Patrick McHardy2010-05-106-100/+726
|\ \ | |/ |/| | | | | | | | | | | Conflicts: net/bridge/br_device.c net/bridge/br_forward.c Signed-off-by: Patrick McHardy <kaber@trash.net>
| * bridge: make bridge support netpollWANG Cong2010-05-064-1/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on the previous patch, make bridge support netpoll by: 1) implement the 2 methods to support netpoll for bridge; 2) modify netpoll during forwarding packets via bridge; 3) disable netpoll support of bridge when a netpoll-unabled device is added to bridge; 4) enable netpoll support when all underlying devices support netpoll. Cc: David Miller <davem@davemloft.net> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: WANG Cong <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: multicast_flood cleanupstephen hemminger2010-04-281-5/+3
| | | | | | | | | | | | | | | | Move some declarations around to make it clearer which variables are being used inside loop. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: multicast port group RCU fixstephen hemminger2010-04-282-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | The recently introduced bridge mulitcast port group list was only partially using RCU correctly. It was missing rcu_dereference() and missing the necessary barrier on deletion. The code should have used one of the standard list methods (list or hlist) instead of open coding a RCU based link list. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: multicast floodstephen hemminger2010-04-281-2/+2
| | | | | | | | | | | | | | | | Fix unsafe usage of RCU. Would never work on Alpha SMP because of lack of rcu_dereference() Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: simplify multicast_add_routerstephen hemminger2010-04-281-8/+11
| | | | | | | | | | | | | | | | By coding slightly differently, there are only two cases to deal with: add at head and add after previous entry. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Revert "bridge: Use hlist_for_each_entry_rcu() in br_multicast_add_router()"David S. Miller2010-04-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | This reverts commit ff65e8275f6c96a5eda57493bd84c4555decf7b3. As explained by Stephen Hemminger, the traversal doesn't require RCU handling as we hold a lock. The list addition et al. calls, on the other hand, do. Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: Use hlist_for_each_entry_rcu() in br_multicast_add_router()David S. Miller2010-04-281-1/+1
| | | | | | | | | | | | Noticed by Michał Mirosław. Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: multicast router list manipulationstephen hemminger2010-04-271-15/+15
| | | | | | | | | | | | | | | | | | | | | | I prefer that the hlist be only accessed through the hlist macro objects. Explicit twiddling of links (especially with RCU) exposes the code to future bugs. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: use is_multicast_ether_addrstephen hemminger2010-04-271-1/+1
| | | | | | | | | | | | | | Use existing inline function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge: Fix build of ipv6 multicast code.David S. Miller2010-04-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based upon a report from Stephen Rothwell: -------------------- net/bridge/br_multicast.c: In function 'br_ip6_multicast_alloc_query': net/bridge/br_multicast.c:469: error: implicit declaration of function 'csum_ipv6_magic' Introduced by commit 08b202b6726459626c73ecfa08fcdc8c3efc76c2 ("bridge br_multicast: IPv6 MLD support") from the net tree. csum_ipv6_magic is declared in net/ip6_checksum.h ... -------------------- Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge br_multicast: Ensure to initialize BR_INPUT_SKB_CB(skb)->mrouters_only.YOSHIFUJI Hideaki / 吉藤英明2010-04-261-6/+3
| | | | | | | | | | | | | | | | | | | | | | Even with commit 32dec5dd0233ebffa9cae25ce7ba6daeb7df4467 ("bridge br_multicast: Don't refer to BR_INPUT_SKB_CB(skb)->mrouters_only without IGMP snooping."), BR_INPUT_SKB_CB(skb)->mrouters_only is not appropriately initialized if IGMP/MLD snooping support is compiled and disabled, so we can see garbage. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bridge br_multicast: IPv6 MLD support.YOSHIFUJI Hideaki2010-04-233-4/+429
| | | | | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
| * bridge br_multicast: Make functions less ipv4 dependent.YOSHIFUJI Hideaki2010-04-232-58/+151
| | | | | | | | | | | | | | | | Introduce struct br_ip{} to store ip address and protocol and make functions more generic so that we can support both IPv4 and IPv6 with less pain. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
| * Merge branch 'master' of ↵David S. Miller2010-04-211-1/+1
| |\ | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-6000.c net/core/dev.c
| | * bridge: add a missing ntohs()Eric Dumazet2010-04-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | grec_nsrcs is in network order, we should convert to host horder in br_multicast_igmp3_report() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: Fix various endianness glitchesEric Dumazet2010-04-212-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | Sparse can help us find endianness bugs, but we need to make some cleanups to be able to more easily spot real bugs. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | netfilter: bridge-netfilter: fix refragmenting IP traffic encapsulated in ↵Bart De Schuymer2010-04-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PPPoE traffic The MTU for IP traffic encapsulated inside PPPoE traffic is smaller than the MTU of the Ethernet device (1500). Connection tracking gathers all IP packets and sometimes will refragment them in ip_fragment(). We then need to subtract the length of the encapsulating header from the mtu used in ip_fragment(). The check in br_nf_dev_queue_xmit() which determines if ip_fragment() has to be called is also updated for the PPPoE-encapsulated packets. nf_bridge_copy_header() is also updated to make sure the PPPoE data length field has the correct value. Signed-off-by: Bart De Schuymer <bdschuym@pandora.be> Signed-off-by: Patrick McHardy <kaber@trash.net>
* | | Merge branch 'master' of /repos/git/net-next-2.6Patrick McHardy2010-04-2012-3/+15
|\| | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: Documentation/feature-removal-schedule.txt net/ipv6/netfilter/ip6t_REJECT.c net/netfilter/xt_limit.c Signed-off-by: Patrick McHardy <kaber@trash.net>
| * | Merge branch 'master' of ↵David S. Miller2010-04-1111-1/+11
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/stmmac/stmmac_main.c drivers/net/wireless/wl12xx/wl1271_cmd.c drivers/net/wireless/wl12xx/wl1271_main.c drivers/net/wireless/wl12xx/wl1271_spi.c net/core/ethtool.c net/mac80211/scan.c
| | * Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller2010-04-1110-0/+10
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| | | * include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-3010-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
| | * | bridge: Fix IGMP3 report parsingHerbert Xu2010-04-081-1/+1
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | The IGMP3 report parsing is looking at the wrong address for group records. This patch fixes it. Reported-by: Banyeer <banyeer@yahoo.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | bridge: cleanup: remove unused assignmentDan Carpenter2010-03-221-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | We never actually use iph again so this assignment can be removed. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: forbid underlaying devices to change its typeJiri Pirko2010-03-191-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's not desired for underlaying devices to change type. At the time, there is for example possible to have bond with changed type from Ethernet to Infiniband as a port of a bridge. This patch fixes this. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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