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2011-04-25net: provide cow_metrics() methods to blackhole dst_opsHeld Bernhard
Since commit 62fa8a846d7d (net: Implement read-only protection and COW'ing of metrics.) the kernel throws an oops. [ 101.620985] BUG: unable to handle kernel NULL pointer dereference at (null) [ 101.621050] IP: [< (null)>] (null) [ 101.621084] PGD 6e53c067 PUD 3dd6a067 PMD 0 [ 101.621122] Oops: 0010 [#1] SMP [ 101.621153] last sysfs file: /sys/devices/virtual/ppp/ppp/uevent [ 101.621192] CPU 2 [ 101.621206] Modules linked in: l2tp_ppp pppox ppp_generic slhc l2tp_netlink l2tp_core deflate zlib_deflate twofish_x86_64 twofish_common des_generic cbc ecb sha1_generic hmac af_key iptable_filter snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device loop snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_pcm snd_timer snd i2c_i801 iTCO_wdt psmouse soundcore snd_page_alloc evdev uhci_hcd ehci_hcd thermal [ 101.621552] [ 101.621567] Pid: 5129, comm: openl2tpd Not tainted 2.6.39-rc4-Quad #3 Gigabyte Technology Co., Ltd. G33-DS3R/G33-DS3R [ 101.621637] RIP: 0010:[<0000000000000000>] [< (null)>] (null) [ 101.621684] RSP: 0018:ffff88003ddeba60 EFLAGS: 00010202 [ 101.621716] RAX: ffff88003ddb5600 RBX: ffff88003ddb5600 RCX: 0000000000000020 [ 101.621758] RDX: ffffffff81a69a00 RSI: ffffffff81b7ee61 RDI: ffff88003ddb5600 [ 101.621800] RBP: ffff8800537cd900 R08: 0000000000000000 R09: ffff88003ddb5600 [ 101.621840] R10: 0000000000000005 R11: 0000000000014b38 R12: ffff88003ddb5600 [ 101.621881] R13: ffffffff81b7e480 R14: ffffffff81b7e8b8 R15: ffff88003ddebad8 [ 101.621924] FS: 00007f06e4182700(0000) GS:ffff88007fd00000(0000) knlGS:0000000000000000 [ 101.621971] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.622005] CR2: 0000000000000000 CR3: 0000000045274000 CR4: 00000000000006e0 [ 101.622046] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.622087] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 101.622129] Process openl2tpd (pid: 5129, threadinfo ffff88003ddea000, task ffff88003de9a280) [ 101.622177] Stack: [ 101.622191] ffffffff81447efa ffff88007d3ded80 ffff88003de9a280 ffff88007d3ded80 [ 101.622245] 0000000000000001 ffff88003ddebbb8 ffffffff8148d5a7 0000000000000212 [ 101.622299] ffff88003dcea000 ffff88003dcea188 ffffffff00000001 ffffffff81b7e480 [ 101.622353] Call Trace: [ 101.622374] [<ffffffff81447efa>] ? ipv4_blackhole_route+0x1ba/0x210 [ 101.622415] [<ffffffff8148d5a7>] ? xfrm_lookup+0x417/0x510 [ 101.622450] [<ffffffff8127672a>] ? extract_buf+0x9a/0x140 [ 101.622485] [<ffffffff8144c6a0>] ? __ip_flush_pending_frames+0x70/0x70 [ 101.622526] [<ffffffff8146fbbf>] ? udp_sendmsg+0x62f/0x810 [ 101.622562] [<ffffffff813f98a6>] ? sock_sendmsg+0x116/0x130 [ 101.622599] [<ffffffff8109df58>] ? find_get_page+0x18/0x90 [ 101.622633] [<ffffffff8109fd6a>] ? filemap_fault+0x12a/0x4b0 [ 101.622668] [<ffffffff813fb5c4>] ? move_addr_to_kernel+0x64/0x90 [ 101.622706] [<ffffffff81405d5a>] ? verify_iovec+0x7a/0xf0 [ 101.622739] [<ffffffff813fc772>] ? sys_sendmsg+0x292/0x420 [ 101.622774] [<ffffffff810b994a>] ? handle_pte_fault+0x8a/0x7c0 [ 101.622810] [<ffffffff810b76fe>] ? __pte_alloc+0xae/0x130 [ 101.622844] [<ffffffff810ba2f8>] ? handle_mm_fault+0x138/0x380 [ 101.622880] [<ffffffff81024af9>] ? do_page_fault+0x189/0x410 [ 101.622915] [<ffffffff813fbe03>] ? sys_getsockname+0xf3/0x110 [ 101.622952] [<ffffffff81450c4d>] ? ip_setsockopt+0x4d/0xa0 [ 101.622986] [<ffffffff813f9932>] ? sockfd_lookup_light+0x22/0x90 [ 101.623024] [<ffffffff814b61fb>] ? system_call_fastpath+0x16/0x1b [ 101.623060] Code: Bad RIP value. [ 101.623090] RIP [< (null)>] (null) [ 101.623125] RSP <ffff88003ddeba60> [ 101.623146] CR2: 0000000000000000 [ 101.650871] ---[ end trace ca3856a7d8e8dad4 ]--- [ 101.651011] __sk_free: optmem leakage (160 bytes) detected. The oops happens in dst_metrics_write_ptr() include/net/dst.h:124: return dst->ops->cow_metrics(dst, p); dst->ops->cow_metrics is NULL and causes the oops. Provide cow_metrics() methods, like we did in commit 214f45c91bb (net: provide default_advmss() methods to blackhole dst_ops) Signed-off-by: Held Bernhard <berny156@gmx.de> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-24cdc_ncm: fix short packet issue on some devicesHans Petter Selasky
The default maximum transmit length for NCM USB frames should be so that a short packet happens at the end if the device supports a length greater than the defined maximum. This is achieved by adding 4 bytes to the maximum length so that the existing logic can fit a short packet there. Signed-off-by: Hans Petter Selasky <hselasky@c2i.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-24Merge branch 'davem.r8169' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6
2011-04-24r8169: don't request firmware when there's no userspace.François Romieu
The firmware is cached during the first successfull call to open() and released once the network device is unregistered. The driver uses the cached firmware between open() and unregister_netdev(). So far the firmware is optional : a failure to load the firmware does not prevent open() to success. It is thus necessary to 1) unregister all 816x / 810[23] devices and 2) force a driver probe to issue a new firmware load. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Fixed-by: Ciprian Docan <docan@eden.rutgers.edu> Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
2011-04-23bnx2x: fix UDP csum offloadVladislav Zolotarov
Fixed packets parameters for FW in UDP checksum offload flow. Do not dereference TCP headers on non TCP frames. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22netconsole: fix deadlock when removing net driver that netconsole is using (v2)Neil Horman
A deadlock was reported to me recently that occured when netconsole was being used in a virtual guest. If the virtio_net driver was removed while netconsole was setup to use an interface that was driven by that driver, the guest deadlocked. No backtrace was provided because netconsole was the only console configured, but it became clear pretty quickly what the problem was. In netconsole_netdev_event, if we get an unregister event, we call __netpoll_cleanup with the target_list_lock held and irqs disabled. __netpoll_cleanup can, if pending netpoll packets are waiting call cancel_delayed_work_sync, which is a sleeping path. the might_sleep call in that path gets triggered, causing a console warning to be issued. The netconsole write handler of course tries to take the target_list_lock again, which we already hold, causing deadlock. The fix is pretty striaghtforward. Simply drop the target_list_lock and re-enable irqs prior to calling __netpoll_cleanup, the re-acquire the lock, and restart the loop. Confirmed by myself to fix the problem reported. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2011-04-21Revert "bridge: Forward reserved group addresses if !STP"David S. Miller
This reverts commit 1e253c3b8a1aeed51eef6fc366812f219b97de65. It breaks 802.3ad bonding inside of a bridge. The commit was meant to support transport bridging, and specifically virtual machines bridged to an ethernet interface connected to a switch port wiht 802.1x enabled. But this isn't the way to do it, it breaks too many other things. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21atl1c: Fix work event interrupt/task racesTim Gardner
The mechanism used to initiate work events from the interrupt handler has a classic read/modify/write race between the interrupt handler that sets the condition, and the worker task that reads and clears the condition. Close these races by using atomic bit fields. Cc: stable@kernel.org Cc: Jie Yang <jie.yang@atheros.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21be2net: increment work_counter in be_workerIvan Vecera
The commit 609ff3b ("be2net: add code to display temperature of ASIC") adds support to display temperature of ASIC but there is missing increment of work_counter in be_worker. Because of this 1) the function be_cmd_get_die_temperature is called every 1 second instead of every 32 seconds 2) be_cmd_get_die_temperature is called, although it is not supported. This patch fixes this bug. Signed-off-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21ipv6: Remove hoplimit initialization to -1Thomas Egerer
The changes introduced with git-commit a02e4b7d ("ipv6: Demark default hoplimit as zero.") missed to remove the hoplimit initialization. As a result, ipv6_get_mtu interprets the return value of dst_metric_raw (-1) as 255 and answers ping6 with this hoplimit. This patche removes the line such that ping6 is answered with the hoplimit value configured via sysctl. Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21powerpc: Fix multicast problem in fs_enet driverAndrea Galbusera
mac-fec.c was setting individual UDP address registers instead of multicast group address registers when joining a multicast group. This prevented from correctly receiving UDP multicast packets. According to datasheet, replaced hash_table_high and hash_table_low with grp_hash_table_high and grp_hash_table_low respectively. Also renamed hash_table_* with grp_hash_table_* in struct fec declaration for 8xx: these registers are used only for multicast there. Tested on a MPC5121 based board. Build tested also against mpc866_ads_defconfig. Signed-off-by: Andrea Galbusera <gizero@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21ipv6: udp: fix the wrong headroom checkShan Wei
At this point, skb->data points to skb_transport_header. So, headroom check is wrong. For some case:bridge(UFO is on) + eth device(UFO is off), there is no enough headroom for IPv6 frag head. But headroom check is always false. This will bring about data be moved to there prior to skb->head, when adding IPv6 frag header to skb. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20iwl4965: fix skb usage after freeStanislaw Gruszka
Since commit a120e912eb51e347f36c71b60a1d13af74d30e83 Author: Stanislaw Gruszka <sgruszka@redhat.com> Date: Fri Feb 19 15:47:33 2010 -0800 iwlwifi: sanity check before counting number of tfds can be free we use skb->data after calling ieee80211_tx_status_irqsafe(), which could free skb instantly. On current kernels I do not observe practical problems related with bug, but on 2.6.35.y it cause random system hangs when stressing wireless link, making bisection of other problems impossible. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-20iwlwifi: fix skb usage after freeStanislaw Gruszka
Since commit a120e912eb51e347f36c71b60a1d13af74d30e83 Author: Stanislaw Gruszka <sgruszka@redhat.com> Date: Fri Feb 19 15:47:33 2010 -0800 iwlwifi: sanity check before counting number of tfds can be free we use skb->data after calling ieee80211_tx_status_irqsafe(), which could free skb instantly. On current kernels I do not observe practical problems related with bug, but on 2.6.35.y it cause random system hangs when stressing wireless link. Cc: stable@kernel.org # 2.6.32+ Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-20mac80211: fix SMPS debugfs lockingJohannes Berg
The locking with SMPS requests means that the debugs file should lock the mgd mutex, not the iflist mutex. Calls to __ieee80211_request_smps() need to hold that mutex, so add an assertion. This has always been wrong, but for some reason never been noticed, probably because the locking error only happens while unassociated. Cc: stable@kernel.org [2.6.34+] Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-20Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6
2011-04-20can: add missing socket check in can/raw releaseOliver Hartkopp
v2: added space after 'if' according code style. We can get here with a NULL socket argument passed from userspace, so we need to handle it accordingly. Thanks to Dave Jones pointing at this issue in net/can/bcm.c Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20bonding: 802.3ad - fix agg_device_upJiri Bohac
The slave member of struct aggregator does not necessarily point to a slave which is part of the aggregator. It points to the slave structure containing the aggregator structure, while completely different slaves (or no slaves at all) may be part of the aggregator. The agg_device_up() function wrongly uses agg->slave to find the state of the aggregator. Use agg->lag_ports->slave instead. The bug has been introduced by commit 4cd6fe1c6483cde93e2ec91f58b7af9c9eea51ad ("bonding: fix link down handling in 802.3ad mode"). Signed-off-by: Jiri Bohac <jbohac@suse.cz> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20ehea: Fix a DLPAR bug on ehea_rereg_mrs().Breno Leitao
We are currently continuing if ehea_restart_qps() fails, when we do a memory DLPAR (remove or add more memory to the system). This patch just let the NAPI disabled if the ehea_restart_qps() fails. Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-19can: Add missing socket check in can/bcm release.Dave Jones
We can get here with a NULL socket argument passed from userspace, so we need to handle it accordingly. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-19ath9k: fix the return value of ath_stoprecvFelix Fietkau
The patch 'ath9k_hw: fix stopping rx DMA during resets' added code to detect a condition where rx DMA was stopped, but the MAC failed to enter the idle state. This condition requires a hardware reset, however the return value of ath_stoprecv was 'true' in that case, which allowed it to skip the reset when issuing a fast channel change. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Reported-by: Paul Stewart <pstew@google.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2011-04-19netfilter: ipset: Fix the order of listing of setsJozsef Kadlecsik
A restoreable saving of sets requires that list:set type of sets come last and the code part which should have taken into account the ordering was broken. The patch fixes the listing order. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-04-18Bluetooth: Only keeping SAR bits when retransmitting one frame.Ruiyi Zhang
When retrasmitting one frame, only SAR bits in control field should be kept. Signed-off-by: Ruiyi Zhang <Ruiyi.zhang@atheros.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-18Bluetooth: fix shutdown on SCO socketsLuiz Augusto von Dentz
shutdown should wait for SCO link to be properly disconnected before detroying the socket, otherwise an application using the socket may assume link is properly disconnected before it really happens which can be a problem when e.g synchronizing profile switch. Signed-off-by: Luiz Augusto von Dentz <luiz.dentz-von@nokia.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-18Bluetooth: Fix keeping the command timer runningVinicius Costa Gomes
In the teardown path the reset command is sent to the controller, this event causes the command timer to be reactivated. So the timer is removed in two situations, when the adapter isn't marked as UP and when we know that some command has been sent. Reported-by: Keith Packard <keithp@keithp.com> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-18Bluetooth: Fix refcount balance for hci connectionVille Tervo
hci_io_capa_reply_evt() holds reference for hciconnection. It's useless since hci_io_capa_request_evt()/hci_simple_pair_complete_evt() already protects the connection. In addition it leaves connection open after failed SSP pairing. Signed-off-by: Ville Tervo <ville.tervo@nokia.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-18iwlwifi: fix frame injection for HT channelsDaniel Halperin
For some reason, sending QoS configuration causes transmission to stop after a single frame on HT channels when not associated. Removing the extra QoS configuration has no effect on station mode, and fixes injection mode. Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-17ip6_pol_route panic: Do not allow VLAN on loopbackKrishna Kumar
Several tests in the ipv6 routing code check IFF_LOOPBACK, and allowing stacking such as VLAN'ing on top of loopback results in a netdevice which reports IFF_LOOPBACK but really isn't the loopback device. Instead of spamming the ipv6 routing code with even more special tests, simply disallow VLAN over loopback. The result of this patch is: # modprobe 8021q # vconfig add lo 43 ERROR: trying to add VLAN #43 to IF -:lo:- error: Operation not supported Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-17bnx2x: Fix port identification problemYaniv Rosner
This patch fixes port identification on optic devices when there's no link on the port. Signed-off-by: Yaniv Rosner <yanivr@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-17r8169: add Realtek as maintainer.Francois Romieu
Per Hayes's request. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-14ip: ip_options_compile() resilient to NULL skb routeEric Dumazet
Scot Doyle demonstrated ip_options_compile() could be called with an skb without an attached route, using a setup involving a bridge, netfilter, and forged IP packets. Let's make ip_options_compile() and ip_options_rcv_srr() a bit more robust, instead of changing bridge/netfilter code. With help from Hiroaki SHIMODA. Reported-by: Scot Doyle <lkml@scotdoyle.com> Tested-by: Scot Doyle <lkml@scotdoyle.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-14bna: fix memory leak during RX path cleanupRasesh Mody
The memory leak was caused by unintentional assignment of the Rx path destroy callback function pointer to NULL just after correct initialization. Signed-off-by: Debashis Dutt <ddutt@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-14bna: fix for clean fw re-initializationRasesh Mody
During a kernel crash, bna control path state machine and firmware do not get a notification and hence are not cleanly shutdown. The registers holding driver/IOC state information are not reset back to valid disabled/parking values. This causes subsequent driver initialization to hang during kdump kernel boot. This patch, during the initialization of first PCI function, resets corresponding register when unclean shutown is detect by reading chip registers. This will make sure that ioc/fw gets clean re-initialization. Signed-off-by: Debashis Dutt <ddutt@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-14Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2011-04-14usbnet: Fix up 'FLAG_POINTTOPOINT' and 'FLAG_MULTI_PACKET' overlaps.huajun li
USB tethering does not work anymore since 2.6.39-rc2, but it's okay in -rc1. The root cause is the new added mask code 'FLAG_POINTTOPOINT' overlaps 'FLAG_MULTI_PACKET' in include/linux/usb/usbnet.h, this causes logic issue in rx_process(). This patch cleans up the overlap. Reported-and-Tested-by: Gottfried Haider <gottfried.haider@gmail.com> Signed-off-by: Huajun Li <huajun.li.lee@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13iwlegacy: fix tx_power initializationStanislaw Gruszka
priv->tx_power_next is not initialized to max supported power, but instead default value is used, what cause errors like [ 58.597834] iwl3945 0000:03:00.0: Requested user TXPOWER 15 above upper limit 14. [ 58.597839] iwl3945 0000:03:00.0: Error setting Tx power (-22). if maximum tx power read from the eeprom is smaller than default. In consequence card is unable to initialize properly. Fix the problem and cleanup tx power initialization. Reported-and-tested-by: Robin Dong <hao.bigrat@gmail.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-13Revert "tcp: disallow bind() to reuse addr/port"David S. Miller
This reverts commit c191a836a908d1dd6b40c503741f91b914de3348. It causes known regressions for programs that expect to be able to use SO_REUSEADDR to shutdown a socket, then successfully rebind another socket to the same ID. Programs such as haproxy and amavisd expect this to work. This should fix kernel bugzilla 32832. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13qlcnic: limit skb frags for non tso packetAmit Kumar Salecha
Machines are getting deadlock in four node cluster environment. All nodes are accessing (find /gfs2 -depth -print|cpio -ocv > /dev/null) 200 GB storage on a GFS2 filesystem. This result in memory fragmentation and driver receives 18 frags for 1448 byte packets. For non tso packet, fw drops the tx request, if it has >14 frags. Fixing it by pulling extra frags. Cc: stable@kernel.org Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13net: can: mscan: fix build breakage in mpc5xxx_canAnatolij Gustschin
Commit 74888760d40b3ac9054f9c5fa07b566c0676ba2d "dt/net: Eliminate users of of_platform_{,un}register_driver" broke building mscan driver. Fix it. Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13netfilter: ipset: set match and SET target fixesJozsef Kadlecsik
The SET target with --del-set did not work due to using wrongly the internal dimension of --add-set instead of --del-set. Also, the checkentries did not release the set references when returned an error. Bugs reported by Lennert Buytenhek. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-04-13netfilter: ipset: bitmap:ip,mac type requires "src" for MACJozsef Kadlecsik
Enforce that the second "src/dst" parameter of the set match and SET target must be "src", because we have access to the source MAC only in the packet. The previous behaviour, that the type required the second parameter but actually ignored the value was counter-intuitive and confusing. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-04-13Merge branch 'master' of ↵Patrick McHardy
ssh://master.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2011-04-12sctp: fix oops while removed transport still using as retran pathWei Yongjun
Since we can not update retran path to unconfirmed transports, when we remove a peer, the retran path may not be update if the other transports are all unconfirmed, and we will still using the removed transport as the retran path. This may cause panic if retrasnmit happen. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12sctp: fix oops when updating retransmit path with DEBUG onVlad Yasevich
commit fbdf501c9374966a56829ecca3a7f25d2b49a305 sctp: Do no select unconfirmed transports for retransmissions Introduced the initial falt. commit d598b166ced20d9b9281ea3527c0e18405ddb803 sctp: Make sure we always return valid retransmit path Solved the problem, but forgot to change the DEBUG statement. Thus it was still possible to dereference a NULL pointer. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12net: Disable NETIF_F_TSO_ECN when TSO is disabledBen Hutchings
NETIF_F_TSO_ECN has no effect when TSO is disabled; this just means that feature state will be accurately reported to user-space. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12net: Disable all TSO features when SG is disabledBen Hutchings
The feature flags NETIF_F_TSO and NETIF_F_TSO6 independently enable TSO for IPv4 and IPv6 respectively. However, the test in netdev_fix_features() and its predecessor functions was never updated to check for NETIF_F_TSO6, possibly because it was originally proposed that TSO for IPv6 would be dependent on both feature flags. Now that these feature flags can be changed independently from user-space and we depend on netdev_fix_features() to fix invalid feature combinations, it's important to disable them both if scatter-gather is disabled. Also disable NETIF_F_TSO_ECN so user-space sees all TSO features as disabled. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12Merge branch 'sfc-2.6.39' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-2.6
2011-04-12sfc: Use rmb() to ensure reads occur in orderNeil Turton
Enabling write-combining may also enable read reordering. The BIU is only guaranteed to read from a 128-bit CSR or 64-bit SRAM word when the host reads from its lowest address; otherwise the BIU may use the latched value. Therefore we need to reinstate the read memory barriers after the first read operation for each CSR or SRAM word. Signed-off-by; Ben Hutchings <bhutchings@solarflare.com>
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