1. 12 6月, 2015 3 次提交
    • S
      net: don't wait for order-3 page allocation · fb05e7a8
      Shaohua Li 提交于
      We saw excessive direct memory compaction triggered by skb_page_frag_refill.
      This causes performance issues and add latency. Commit 5640f768
      introduces the order-3 allocation. According to the changelog, the order-3
      allocation isn't a must-have but to improve performance. But direct memory
      compaction has high overhead. The benefit of order-3 allocation can't
      compensate the overhead of direct memory compaction.
      
      This patch makes the order-3 page allocation atomic. If there is no memory
      pressure and memory isn't fragmented, the alloction will still success, so we
      don't sacrifice the order-3 benefit here. If the atomic allocation fails,
      direct memory compaction will not be triggered, skb_page_frag_refill will
      fallback to order-0 immediately, hence the direct memory compaction overhead is
      avoided. In the allocation failure case, kswapd is waken up and doing
      compaction, so chances are allocation could success next time.
      
      alloc_skb_with_frags is the same.
      
      The mellanox driver does similar thing, if this is accepted, we must fix
      the driver too.
      
      V3: fix the same issue in alloc_skb_with_frags as pointed out by Eric
      V2: make the changelog clearer
      
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: Chris Mason <clm@fb.com>
      Cc: Debabrata Banerjee <dbavatar@gmail.com>
      Signed-off-by: NShaohua Li <shli@fb.com>
      Acked-by: NEric Dumazet <edumazet@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fb05e7a8
    • R
      mpls: handle device renames for per-device sysctls · 0fae3bf0
      Robert Shearman 提交于
      If a device is renamed and the original name is subsequently reused
      for a new device, the following warning is generated:
      
      sysctl duplicate entry: /net/mpls/conf/veth0//input
      CPU: 3 PID: 1379 Comm: ip Not tainted 4.1.0-rc4+ #20
      Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
       0000000000000000 0000000000000000 ffffffff81566aaf 0000000000000000
       ffffffff81236279 ffff88002f7d7f00 0000000000000000 ffff88000db336d8
       ffff88000db33698 0000000000000005 ffff88002e046000 ffff8800168c9280
      Call Trace:
       [<ffffffff81566aaf>] ? dump_stack+0x40/0x50
       [<ffffffff81236279>] ? __register_sysctl_table+0x289/0x5a0
       [<ffffffffa051a24f>] ? mpls_dev_notify+0x1ff/0x300 [mpls_router]
       [<ffffffff8108db7f>] ? notifier_call_chain+0x4f/0x70
       [<ffffffff81470e72>] ? register_netdevice+0x2b2/0x480
       [<ffffffffa0524748>] ? veth_newlink+0x178/0x2d3 [veth]
       [<ffffffff8147f84c>] ? rtnl_newlink+0x73c/0x8e0
       [<ffffffff8147f27a>] ? rtnl_newlink+0x16a/0x8e0
       [<ffffffff81459ff2>] ? __kmalloc_reserve.isra.30+0x32/0x90
       [<ffffffff8147ccfd>] ? rtnetlink_rcv_msg+0x8d/0x250
       [<ffffffff8145b027>] ? __alloc_skb+0x47/0x1f0
       [<ffffffff8149badb>] ? __netlink_lookup+0xab/0xe0
       [<ffffffff8147cc70>] ? rtnetlink_rcv+0x30/0x30
       [<ffffffff8149e7a0>] ? netlink_rcv_skb+0xb0/0xd0
       [<ffffffff8147cc64>] ? rtnetlink_rcv+0x24/0x30
       [<ffffffff8149df17>] ? netlink_unicast+0x107/0x1a0
       [<ffffffff8149e4be>] ? netlink_sendmsg+0x50e/0x630
       [<ffffffff8145209c>] ? sock_sendmsg+0x3c/0x50
       [<ffffffff81452beb>] ? ___sys_sendmsg+0x27b/0x290
       [<ffffffff811bd258>] ? mem_cgroup_try_charge+0x88/0x110
       [<ffffffff811bd5b6>] ? mem_cgroup_commit_charge+0x56/0xa0
       [<ffffffff811d7700>] ? do_filp_open+0x30/0xa0
       [<ffffffff8145336e>] ? __sys_sendmsg+0x3e/0x80
       [<ffffffff8156c3f2>] ? system_call_fastpath+0x16/0x75
      
      Fix this by unregistering the previous sysctl table (registered for
      the path containing the original device name) and re-registering the
      table for the path containing the new device name.
      
      Fixes: 37bde799 ("mpls: Per-device enabling of packet input")
      Reported-by: NScott Feldman <sfeldma@gmail.com>
      Signed-off-by: NRobert Shearman <rshearma@brocade.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      0fae3bf0
    • R
      net: igb: fix the start time for periodic output signals · 58c98be1
      Richard Cochran 提交于
      When programming the start of a periodic output, the code wrongly places
      the seconds value into the "low" register and the nanoseconds into the
      "high" register.  Even though this is backwards, it slipped through my
      testing, because the re-arming code in the interrupt service routine is
      correct, and the signal does appear starting with the second edge.
      
      This patch fixes the issue by programming the registers correctly.
      Signed-off-by: NRichard Cochran <richardcochran@gmail.com>
      Reviewed-by: NJacob Keller <jacob.e.keller@intel.com>
      Acked-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      58c98be1
  2. 11 6月, 2015 7 次提交
    • G
      enic: fix memory leak in rq_clean · 8b13b4e0
      Govindarajulu Varadarajan 提交于
      When incoming packet qualifies for rx_copybreak, we copy the data to newly
      allocated skb. We do not free/unmap the original buffer. At this point driver
      assumes this buffer is unallocated. When enic_rq_alloc_buf() is called for
      buffer allocation, it checks if buf->os_buf is NULL. If its not NULL that means
      buffer can be re-used.
      
      When vnic_rq_clean() is called for freeing all rq buffers, and if the
      rx_copybreak reused buffer falls outside the used desc, we do not free the
      buffer. The following trace is observer when dma-debug is enabled.
      
      Fix is to walk through complete ring and clean if buffer is present.
      
      [   40.555386] ------------[ cut here ]------------
      [   40.555396] WARNING: CPU: 0 PID: 491 at lib/dma-debug.c:971 dma_debug_device_change+0x188/0x1f0()
      [   40.555400] pci 0000:06:00.0: DMA-API: device driver has pending DMA allocations while released from device [count=4]
                     One of leaked entries details: [device address=0x00000000ff4cc040] [size=9018 bytes] [mapped with DMA_FROM_DEVICE] [mapped as single]
      [   40.555402] Modules linked in: nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss oid_registry nfsv4 dns_resolver coretemp intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw joydev mousedev gf128mul hid_generic glue_helper mgag200 usbhid ttm hid drm_kms_helper drm ablk_helper syscopyarea sysfillrect sysimgblt i2c_algo_bit i2c_core iTCO_wdt cryptd mac_hid evdev pcspkr sb_edac edac_core tpm_tis iTCO_vendor_support ipmi_si wmi tpm ipmi_msghandler shpchp lpc_ich processor acpi_power_meter hwmon button ac sch_fq_codel nfs lockd grace sunrpc fscache sd_mod ehci_pci ehci_hcd megaraid_sas usbcore scsi_mod usb_common enic(-) crc32c_generic crc32c_intel btrfs xor raid6_pq ext4 crc16 mbcache jbd2
      [   40.555467] CPU: 0 PID: 491 Comm: rmmod Not tainted 4.1.0-rc7-ARCH-01305-gf59b71f #118
      [   40.555469] Hardware name: Cisco Systems Inc UCSB-B200-M4/UCSB-B200-M4, BIOS B200M4.2.2.2.23.061220140128 06/12/2014
      [   40.555471]  0000000000000000 00000000e2f8a5b7 ffff880275f8bc48 ffffffff8158d6f0
      [   40.555474]  0000000000000000 ffff880275f8bca0 ffff880275f8bc88 ffffffff8107b04a
      [   40.555477]  ffff8802734e0000 0000000000000004 ffff8804763fb3c0 ffff88027600b650
      [   40.555480] Call Trace:
      [   40.555488]  [<ffffffff8158d6f0>] dump_stack+0x4f/0x7b
      [   40.555492]  [<ffffffff8107b04a>] warn_slowpath_common+0x8a/0xc0
      [   40.555494]  [<ffffffff8107b0d5>] warn_slowpath_fmt+0x55/0x70
      [   40.555498]  [<ffffffff812fa408>] dma_debug_device_change+0x188/0x1f0
      [   40.555503]  [<ffffffff8109aaef>] notifier_call_chain+0x4f/0x80
      [   40.555506]  [<ffffffff8109aecb>] __blocking_notifier_call_chain+0x4b/0x70
      [   40.555510]  [<ffffffff8109af06>] blocking_notifier_call_chain+0x16/0x20
      [   40.555514]  [<ffffffff813f8066>] __device_release_driver+0xf6/0x120
      [   40.555518]  [<ffffffff813f8b08>] driver_detach+0xc8/0xd0
      [   40.555523]  [<ffffffff813f7c59>] bus_remove_driver+0x59/0xe0
      [   40.555527]  [<ffffffff813f93a0>] driver_unregister+0x30/0x70
      [   40.555534]  [<ffffffff8131532d>] pci_unregister_driver+0x2d/0xa0
      [   40.555542]  [<ffffffffa0200ec2>] enic_cleanup_module+0x10/0x14e [enic]
      [   40.555547]  [<ffffffff8110158f>] SyS_delete_module+0x1cf/0x280
      [   40.555551]  [<ffffffff811e284e>] ? ____fput+0xe/0x10
      [   40.555554]  [<ffffffff810980ec>] ? task_work_run+0xbc/0xf0
      [   40.555558]  [<ffffffff815930ee>] system_call_fastpath+0x12/0x71
      [   40.555561] ---[ end trace 4988cadc77c2b236 ]---
      [   40.555562] Mapped at:
      [   40.555563]  [<ffffffff812fa865>] debug_dma_map_page+0x95/0x150
      [   40.555566]  [<ffffffffa01f4a88>] enic_rq_alloc_buf+0x1b8/0x360 [enic]
      [   40.555570]  [<ffffffffa01f7658>] enic_open+0xf8/0x820 [enic]
      [   40.555574]  [<ffffffff8148d50e>] __dev_open+0xce/0x150
      [   40.555579]  [<ffffffff8148d851>] __dev_change_flags+0xa1/0x170
      Signed-off-by: NGovindarajulu Varadarajan <_govind@gmx.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8b13b4e0
    • G
      enic: check return value for stat dump · 19b596bd
      Govindarajulu Varadarajan 提交于
      We do not check the return value of enic_dev_stats_dump(). If allocation
      fails, we will hit NULL pointer reference.
      
      Return only if memory allocation fails. For other failures, we return the
      previously recorded values.
      Signed-off-by: NGovindarajulu Varadarajan <_govind@gmx.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      19b596bd
    • G
      enic: unlock napi busy poll before unmasking intr · 6286e828
      Govindarajulu Varadarajan 提交于
      There is a small window between vnic_intr_unmask() and enic_poll_unlock_napi().
      In this window if an irq occurs and napi is scheduled on different cpu, it tries
      to acquire enic_poll_lock_napi() and hits the following WARN_ON message.
      
      Fix is to unlock napi_poll before unmasking the interrupt.
      
      [  781.121746] ------------[ cut here ]------------
      [  781.121789] WARNING: CPU: 1 PID: 0 at drivers/net/ethernet/cisco/enic/vnic_rq.h:228 enic_poll_msix_rq+0x36a/0x3c0 [enic]()
      [  781.121834] Modules linked in: nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss oid_registry nfsv4 dns_resolver coretemp intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel mgag200 ttm drm_kms_helper joydev aes_x86_64 lrw drm gf128mul mousedev glue_helper sb_edac ablk_helper iTCO_wdt iTCO_vendor_support evdev ipmi_si syscopyarea sysfillrect sysimgblt i2c_algo_bit i2c_core edac_core lpc_ich mac_hid cryptd pcspkr ipmi_msghandler shpchp tpm_tis acpi_power_meter tpm wmi processor hwmon button ac sch_fq_codel nfs lockd grace sunrpc fscache hid_generic usbhid hid ehci_pci ehci_hcd sd_mod megaraid_sas usbcore scsi_mod usb_common enic crc32c_generic crc32c_intel btrfs xor raid6_pq ext4 crc16 mbcache jbd2
      [  781.122176] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.1.0-rc6-ARCH-00040-gc46a024e-dirty #106
      [  781.122210] Hardware name: Cisco Systems Inc UCSB-B200-M4/UCSB-B200-M4, BIOS B200M4.2.2.2.23.061220140128 06/12/2014
      [  781.122252]  0000000000000000 bddbbc9d655ec96e ffff880277e43da8 ffffffff81583fe8
      [  781.122286]  0000000000000000 0000000000000000 ffff880277e43de8 ffffffff8107acfa
      [  781.122319]  ffff880272c01000 ffff880273f18000 ffff880273f1a100 0000000000000000
      [  781.122352] Call Trace:
      [  781.122364]  <IRQ>  [<ffffffff81583fe8>] dump_stack+0x4f/0x7b
      [  781.122399]  [<ffffffff8107acfa>] warn_slowpath_common+0x8a/0xc0
      [  781.122425]  [<ffffffff8107ae2a>] warn_slowpath_null+0x1a/0x20
      [  781.122455]  [<ffffffffa01fa9ca>] enic_poll_msix_rq+0x36a/0x3c0 [enic]
      [  781.122487]  [<ffffffff8148525a>] net_rx_action+0x22a/0x370
      [  781.122512]  [<ffffffff8107ed3d>] __do_softirq+0xed/0x2d0
      [  781.122537]  [<ffffffff8107f06e>] irq_exit+0x7e/0xa0
      [  781.122560]  [<ffffffff8158c424>] do_IRQ+0x64/0x100
      [  781.122582]  [<ffffffff8158a42e>] common_interrupt+0x6e/0x6e
      [  781.122605]  <EOI>  [<ffffffff810bd331>] ? cpu_startup_entry+0x121/0x480
      [  781.122638]  [<ffffffff810bd2fc>] ? cpu_startup_entry+0xec/0x480
      [  781.122667]  [<ffffffff810f2ed3>] ? clockevents_register_device+0x113/0x1f0
      [  781.122698]  [<ffffffff81050ab6>] start_secondary+0x196/0x1e0
      [  781.122723] ---[ end trace cec2e9dd3af7b9db ]---
      Signed-off-by: NGovindarajulu Varadarajan <_govind@gmx.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6286e828
    • M
      net, swap: Remove a warning and clarify why sk_mem_reclaim is required when deactivating swap · 5d753610
      Mel Gorman 提交于
      Jeff Layton reported the following;
      
       [   74.232485] ------------[ cut here ]------------
       [   74.233354] WARNING: CPU: 2 PID: 754 at net/core/sock.c:364 sk_clear_memalloc+0x51/0x80()
       [   74.234790] Modules linked in: cts rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache xfs libcrc32c snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device nfsd snd_pcm snd_timer snd e1000 ppdev parport_pc joydev parport pvpanic soundcore floppy serio_raw i2c_piix4 pcspkr nfs_acl lockd virtio_balloon acpi_cpufreq auth_rpcgss grace sunrpc qxl drm_kms_helper ttm drm virtio_console virtio_blk virtio_pci ata_generic virtio_ring pata_acpi virtio
       [   74.243599] CPU: 2 PID: 754 Comm: swapoff Not tainted 4.1.0-rc6+ #5
       [   74.244635] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
       [   74.245546]  0000000000000000 0000000079e69e31 ffff8800d066bde8 ffffffff8179263d
       [   74.246786]  0000000000000000 0000000000000000 ffff8800d066be28 ffffffff8109e6fa
       [   74.248175]  0000000000000000 ffff880118d48000 ffff8800d58f5c08 ffff880036e380a8
       [   74.249483] Call Trace:
       [   74.249872]  [<ffffffff8179263d>] dump_stack+0x45/0x57
       [   74.250703]  [<ffffffff8109e6fa>] warn_slowpath_common+0x8a/0xc0
       [   74.251655]  [<ffffffff8109e82a>] warn_slowpath_null+0x1a/0x20
       [   74.252585]  [<ffffffff81661241>] sk_clear_memalloc+0x51/0x80
       [   74.253519]  [<ffffffffa0116c72>] xs_disable_swap+0x42/0x80 [sunrpc]
       [   74.254537]  [<ffffffffa01109de>] rpc_clnt_swap_deactivate+0x7e/0xc0 [sunrpc]
       [   74.255610]  [<ffffffffa03e4fd7>] nfs_swap_deactivate+0x27/0x30 [nfs]
       [   74.256582]  [<ffffffff811e99d4>] destroy_swap_extents+0x74/0x80
       [   74.257496]  [<ffffffff811ecb52>] SyS_swapoff+0x222/0x5c0
       [   74.258318]  [<ffffffff81023f27>] ? syscall_trace_leave+0xc7/0x140
       [   74.259253]  [<ffffffff81798dae>] system_call_fastpath+0x12/0x71
       [   74.260158] ---[ end trace 2530722966429f10 ]---
      
      The warning in question was unnecessary but with Jeff's series the rules
      are also clearer.  This patch removes the warning and updates the comment
      to explain why sk_mem_reclaim() may still be called.
      
      [jlayton: remove if (sk->sk_forward_alloc) conditional. As Leon
                points out that it's not needed.]
      
      Cc: Leon Romanovsky <leon@leon.nu>
      Signed-off-by: NMel Gorman <mgorman@suse.de>
      Signed-off-by: NJeff Layton <jeff.layton@primarydata.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      5d753610
    • N
      bridge: fix multicast router rlist endless loop · 1a040eac
      Nikolay Aleksandrov 提交于
      Since the addition of sysfs multicast router support if one set
      multicast_router to "2" more than once, then the port would be added to
      the hlist every time and could end up linking to itself and thus causing an
      endless loop for rlist walkers.
      So to reproduce just do:
      echo 2 > multicast_router; echo 2 > multicast_router;
      in a bridge port and let some igmp traffic flow, for me it hangs up
      in br_multicast_flood().
      Fix this by adding a check in br_multicast_add_router() if the port is
      already linked.
      The reason this didn't happen before the addition of multicast_router
      sysfs entries is because there's a !hlist_unhashed check that prevents
      it.
      Signed-off-by: NNikolay Aleksandrov <razor@blackwall.org>
      Fixes: 0909e117 ("bridge: Add multicast_router sysfs entries")
      Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1a040eac
    • E
      tipc: disconnect socket directly after probe failure · b3be5e3e
      Erik Hugne 提交于
      If the TIPC connection timer expires in a probing state, a
      self abort message is supposed to be generated and delivered
      to the local socket. This is currently broken, and the abort
      message is actually sent out to the peer node with invalid
      addressing information. This will cause the link to enter
      a constant retransmission state and eventually reset.
      We fix this by removing the self-abort message creation and
      tear down connection immediately instead.
      Signed-off-by: NErik Hugne <erik.hugne@ericsson.com>
      Reviewed-by: NYing Xue <ying.xue@windriver.com>
      Reviewed-by: NJon Maloy <jon.maloy@ericsson.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b3be5e3e
    • D
      Revert "ipv6: Fix protocol resubmission" · 1b0ccfe5
      David S. Miller 提交于
      This reverts commit 0243508e.
      
      It introduces new regressions.
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1b0ccfe5
  3. 10 6月, 2015 1 次提交
  4. 09 6月, 2015 9 次提交
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 5879ae5f
      Linus Torvalds 提交于
      Pull networking fixes from David Miller:
      
       1) Fix stack allocation in s390 BPF JIT, from Michael Holzheu.
      
       2) Disable LRO on openvswitch paths, from Jiri Benc.
      
       3) UDP early demux doesn't handle multicast group membership properly,
          fix from Shawn Bohrer.
      
       4) Fix TX queue hang due to incorrect handling of mixed sized fragments
          and linearlization in i40e driver, from Anjali Singhai Jain.
      
       5) Cannot use disable_irq() in timer handler of AMD xgbe driver, from
          Thomas Lendacky.
      
       6) b2net driver improperly assumes pci_alloc_consistent() gives zero'd
          out memory, use dma_zalloc_coherent().  From Sriharsha Basavapatna.
      
       7) Fix use-after-free in MPLS and ipv6, from Robert Shearman.
      
       8) Missing neif_napi_del() calls in cleanup paths of b44 driver, from
          Hauke Mehrtens.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
        net: replace last open coded skb_orphan_frags with function call
        net: bcmgenet: power on MII block for all MII modes
        ipv6: Fix protocol resubmission
        ipv6: fix possible use after free of dev stats
        b44: call netif_napi_del()
        bridge: disable softirqs around br_fdb_update to avoid lockup
        Revert "bridge: use _bh spinlock variant for br_fdb_update to avoid lockup"
        mpls: fix possible use after free of device
        be2net: Replace dma/pci_alloc_coherent() calls with dma_zalloc_coherent()
        bridge: use _bh spinlock variant for br_fdb_update to avoid lockup
        amd-xgbe: Use disable_irq_nosync from within timer function
        rhashtable: add missing import <linux/export.h>
        i40e: Make sure to be in VEB mode if SRIOV is enabled at probe
        i40e: start up in VEPA mode by default
        i40e/i40evf: Fix mixed size frags and linearization
        ipv4/udp: Verify multicast group is ours in upd_v4_early_demux()
        openvswitch: disable LRO
        s390/bpf: fix bpf frame pointer setup
        s390/bpf: fix stack allocation
      5879ae5f
    • L
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · 056537c6
      Linus Torvalds 提交于
      Pull last-minute virtio fix from Michael Tsirkin:
       "This fixes a minor issue affecting multiqueue virtio net when user
        keeps changing the number of active queues and CPUs are added and
        removed by hotplug"
      
      * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
        virtio_pci: Clear stale cpumask when setting irq affinity
      056537c6
    • L
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 40b985fb
      Linus Torvalds 提交于
      Pull ARM SoC fixes from Kevin Hilman:
       "About 10 days worth of small bug fixes, and the (hopefully) final
        round fixes for from arm-soc land for the -rc cycle.  Nothing special
        to note, but here's a brief summary of fixes by SoC type:
      
         - OMAP:
              small set of misc DT fixes; boot fix for THUMB2 kernel
      
         - mediatek:
              PMIC fixes; DT fix for model name
      
         - exynos:
              wakeup interupt fixes for 3250
      
         - mvebu:
              revert mbus patch which broke DMA masters
      
      * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        ARM: dts: am335x-boneblack: disable RTC-only sleep to avoid hardware damage
        ARM: dts: AM35xx: fix system control module clocks
        arm64: dts: mt8173-evb: fix model name
        ARM: exynos: Fix wake-up interrupts for Exynos3250
        ARM: dts: Fix n900 dts file to work around 4.1 touchscreen regression on n900
        ARM: dts: Fix dm816x to use right compatible flag for MUSB
        ARM: OMAP3: Fix booting with thumb2 kernel
        Revert "bus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus bridge window"
        bus: mvebu-mbus: do not set WIN_CTRL_SYNCBARRIER on non io-coherent platforms.
        ARM: mvebu: armada-xp-linksys-mamba: Disable internal RTC
        soc: mediatek: Add compile dependency to pmic-wrapper
        soc: mediatek: PMIC wrap: Fix register state machine handling
        soc: mediatek: PMIC wrap: Fix clock rate handling
      40b985fb
    • W
      net: replace last open coded skb_orphan_frags with function call · bbbf2df0
      Willem de Bruijn 提交于
      Commit 70008aa5 ("skbuff: convert to skb_orphan_frags") replaced
      open coded tests of SKBTX_DEV_ZEROCOPY and skb_copy_ubufs with calls
      to helper function skb_orphan_frags. Apply that to the last remaining
      open coded site.
      Signed-off-by: NWillem de Bruijn <willemb@google.com>
      Acked-by: NMichael S. Tsirkin <mst@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      bbbf2df0
    • F
      net: bcmgenet: power on MII block for all MII modes · afe3f907
      Florian Fainelli 提交于
      The RGMII block is currently only powered on when using RGMII or
      RGMII_NO_ID, which is not correct when using the GENET interface in MII
      or Reverse MII modes. We always need to power on the RGMII interface for
      this block to properly work, regardless of the MII mode in which we
      operate.
      
      Fixes: aa09677c ("net: bcmgenet: add MDIO routines")
      Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      afe3f907
    • J
      ipv6: Fix protocol resubmission · 0243508e
      Josh Hunt 提交于
      UDP encapsulation is broken on IPv6. This is because the logic to resubmit
      the nexthdr is inverted, checking for a ret value > 0 instead of < 0. Also,
      the resubmit label is in the wrong position since we already get the
      nexthdr value when performing decapsulation. In addition the skb pull is no
      longer necessary either.
      
      This changes the return value check to look for < 0, using it for the
      nexthdr on the next iteration, and moves the resubmit label to the proper
      location.
      
      With these changes the v6 code now matches what we do in the v4 ip input
      code wrt resubmitting when decapsulating.
      Signed-off-by: NJosh Hunt <johunt@akamai.com>
      Acked-by: N"Tom Herbert" <tom@herbertland.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      0243508e
    • R
      ipv6: fix possible use after free of dev stats · 27e41fcf
      Robert Shearman 提交于
      The memory pointed to by idev->stats.icmpv6msgdev,
      idev->stats.icmpv6dev and idev->stats.ipv6 can each be used in an RCU
      read context without taking a reference on idev. For example, through
      IP6_*_STATS_* calls in ip6_rcv. These memory blocks are freed without
      waiting for an RCU grace period to elapse. This could lead to the
      memory being written to after it has been freed.
      
      Fix this by using call_rcu to free the memory used for stats, as well
      as idev after an RCU grace period has elapsed.
      Signed-off-by: NRobert Shearman <rshearma@brocade.com>
      Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      27e41fcf
    • K
      Merge tag 'omap-for-v4.1/fixes-rc6' of... · 0a68c6bc
      Kevin Hilman 提交于
      Merge tag 'omap-for-v4.1/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
      
      Merge omap fixes for v4.1, urgent fix to avoid potential hardware damage From Tony Lindgren:
      
      Omap fixes for the -rc cycle, including a fix for potential hardware
      breakage on BeagleBones:
      
      - BeagleBones don't support RTC-only mode, it can cause hardware
        damage if system-power-controller is specified without
        ti,pmic-shutdown-controller
      
      - Fix a recent regression to am3517 SoCs caused by the recent clock
        move that was not noticed until now despite automated boot
        testing
      
      - Fix a regression for n900 touchscreen triggered by recent
        recent input changes
      
      - Fix compatible property for dm816x USB to avoid errors with
        USB Ethernet
      
      - Fix oops for omap3 when built with CONFIG_THUMB2_KERNEL
      
      * tag 'omap-for-v4.1/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
        ARM: dts: am335x-boneblack: disable RTC-only sleep to avoid hardware damage
        ARM: dts: AM35xx: fix system control module clocks
        ARM: dts: Fix n900 dts file to work around 4.1 touchscreen regression on n900
        ARM: dts: Fix dm816x to use right compatible flag for MUSB
        ARM: OMAP3: Fix booting with thumb2 kernel
      0a68c6bc
    • L
      Merge git://git.infradead.org/intel-iommu · 181e5059
      Linus Torvalds 提交于
      Pull Intel IOMMU fix from David Woodhouse:
       "This fixes an oops when attempting to enable 1:1 passthrough mode for
        devices on which VT-d translation was disabled anyway.
      
        It's actually a long-standing bug but recent changes (commit
        18436afd: "iommu/vt-d: Allow RMRR on graphics devices too") have
        made it much easier to trigger with 'iommu=pt intel_iommu=igfx_off' on
        the command line"
      
      * git://git.infradead.org/intel-iommu:
        iommu/vt-d: Fix passthrough mode with translation-disabled devices
      181e5059
  5. 08 6月, 2015 10 次提交
  6. 07 6月, 2015 10 次提交