1. 03 4月, 2015 3 次提交
  2. 02 4月, 2015 1 次提交
  3. 01 4月, 2015 11 次提交
    • O
      can: introduce new raw socket option to join the given CAN filters · a5581ef4
      Oliver Hartkopp 提交于
      The CAN_RAW socket can set multiple CAN identifier specific filters that lead
      to multiple filters in the af_can.c filter processing. These filters are
      indenpendent from each other which leads to logical OR'ed filters when applied.
      
      This socket option joines the given CAN filters in the way that only CAN frames
      are passed to user space that matched *all* given CAN filters. The semantic for
      the applied filters is therefore changed to a logical AND.
      
      This is useful especially when the filterset is a combination of filters where
      the CAN_INV_FILTER flag is set in order to notch single CAN IDs or CAN ID
      ranges from the incoming traffic.
      
      As the raw_rcv() function is executed from NET_RX softirq the introduced
      variables are implemented as per-CPU variables to avoid extensive locking at
      CAN frame reception time.
      Signed-off-by: NOliver Hartkopp <socketcan@hartkopp.net>
      Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
      a5581ef4
    • O
      can: fix multiple delivery of a single CAN frame for overlapping CAN filters · 514ac99c
      Oliver Hartkopp 提交于
      The CAN_RAW socket can set multiple CAN identifier specific filters that lead
      to multiple filters in the af_can.c filter processing. These filters are
      indenpendent from each other which leads to logical OR'ed filters when applied.
      
      This patch makes sure that every CAN frame which is filtered for a specific
      socket is only delivered once to the user space. This is independent from the
      number of matching CAN filters of this socket.
      
      As the raw_rcv() function is executed from NET_RX softirq the introduced
      variables are implemented as per-CPU variables to avoid extensive locking at
      CAN frame reception time.
      Signed-off-by: NOliver Hartkopp <socketcan@hartkopp.net>
      Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
      514ac99c
    • J
      net: rename dev to orig_dev in deliver_ptype_list_skb · fbcb2170
      Jiri Pirko 提交于
      Unlike other places, this function uses name "dev" for what should be
      "orig_dev", which might be a bit confusing. So fix this.
      Signed-off-by: NJiri Pirko <jiri@resnulli.us>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fbcb2170
    • J
      netlink: implement nla_get_in_addr and nla_get_in6_addr · 67b61f6c
      Jiri Benc 提交于
      Those are counterparts to nla_put_in_addr and nla_put_in6_addr.
      Signed-off-by: NJiri Benc <jbenc@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      67b61f6c
    • J
      netlink: implement nla_put_in_addr and nla_put_in6_addr · 930345ea
      Jiri Benc 提交于
      IP addresses are often stored in netlink attributes. Add generic functions
      to do that.
      
      For nla_put_in_addr, it would be nicer to pass struct in_addr but this is
      not used universally throughout the kernel, in way too many places __be32 is
      used to store IPv4 address.
      Signed-off-by: NJiri Benc <jbenc@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      930345ea
    • J
      xfrm: simplify xfrm_address_t use · 15e318bd
      Jiri Benc 提交于
      In many places, the a6 field is typecasted to struct in6_addr. As the
      fields are in union anyway, just add in6_addr type to the union and
      get rid of the typecasting.
      
      Modifying the uapi header is okay, the union has still the same size.
      Signed-off-by: NJiri Benc <jbenc@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      15e318bd
    • J
      tcp: simplify inetpeer_addr_base use · 8f55db48
      Jiri Benc 提交于
      In many places, the a6 field is typecasted to struct in6_addr. As the
      fields are in union anyway, just add in6_addr type to the union and get rid
      of the typecasting.
      Signed-off-by: NJiri Benc <jbenc@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8f55db48
    • I
      ipv6: coding style: comparison for inequality with NULL · 53b24b8f
      Ian Morris 提交于
      The ipv6 code uses a mixture of coding styles. In some instances check for NULL
      pointer is done as x != NULL and sometimes as x. x is preferred according to
      checkpatch and this patch makes the code consistent by adopting the latter
      form.
      
      No changes detected by objdiff.
      Signed-off-by: NIan Morris <ipm@chirality.org.uk>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      53b24b8f
    • I
      ipv6: coding style: comparison for equality with NULL · 63159f29
      Ian Morris 提交于
      The ipv6 code uses a mixture of coding styles. In some instances check for NULL
      pointer is done as x == NULL and sometimes as !x. !x is preferred according to
      checkpatch and this patch makes the code consistent by adopting the latter
      form.
      
      No changes detected by objdiff.
      Signed-off-by: NIan Morris <ipm@chirality.org.uk>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      63159f29
    • A
      fib_trie: Cleanup ip_fib_net_exit code path · 6e47d6ca
      Alexander Duyck 提交于
      While fixing a recent issue I noticed that we are doing some unnecessary
      work inside the loop for ip_fib_net_exit.  As such I am pulling out the
      initialization to NULL for the locally stored fib_local, fib_main, and
      fib_default.
      
      In addition I am restoring the original code for flushing the table as
      there is no need to split up the fib_table_flush and hlist_del work since
      the code for packing the tnodes with multiple key vectors was dropped.
      Signed-off-by: NAlexander Duyck <alexander.h.duyck@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6e47d6ca
    • A
      fib_trie: Fix warning on fib4_rules_exit · ad88d051
      Alexander Duyck 提交于
      This fixes the following warning:
      
       BUG: sleeping function called from invalid context at mm/slub.c:1268
       in_atomic(): 1, irqs_disabled(): 0, pid: 6, name: kworker/u8:0
       INFO: lockdep is turned off.
       CPU: 3 PID: 6 Comm: kworker/u8:0 Tainted: G        W       4.0.0-rc5+ #895
       Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
       Workqueue: netns cleanup_net
        0000000000000006 ffff88011953fa68 ffffffff81a203b6 000000002c3a2c39
        ffff88011952a680 ffff88011953fa98 ffffffff8109daf0 ffff8801186c6aa8
        ffffffff81fbc9e5 00000000000004f4 0000000000000000 ffff88011953fac8
       Call Trace:
        [<ffffffff81a203b6>] dump_stack+0x4c/0x65
        [<ffffffff8109daf0>] ___might_sleep+0x1c3/0x1cb
        [<ffffffff8109db70>] __might_sleep+0x78/0x80
        [<ffffffff8117a60e>] slab_pre_alloc_hook+0x31/0x8f
        [<ffffffff8117d4f6>] __kmalloc+0x69/0x14e
        [<ffffffff818ed0e1>] ? kzalloc.constprop.20+0xe/0x10
        [<ffffffff818ed0e1>] kzalloc.constprop.20+0xe/0x10
        [<ffffffff818ef622>] fib_trie_table+0x27/0x8b
        [<ffffffff818ef6bd>] fib_trie_unmerge+0x37/0x2a6
        [<ffffffff810b06e1>] ? arch_local_irq_save+0x9/0xc
        [<ffffffff818e9793>] fib_unmerge+0x2d/0xb3
        [<ffffffff818f5f56>] fib4_rule_delete+0x1f/0x52
        [<ffffffff817f1c3f>] ? fib_rules_unregister+0x30/0xb2
        [<ffffffff817f1c8b>] fib_rules_unregister+0x7c/0xb2
        [<ffffffff818f64a1>] fib4_rules_exit+0x15/0x18
        [<ffffffff818e8c0a>] ip_fib_net_exit+0x23/0xf2
        [<ffffffff818e91f8>] fib_net_exit+0x32/0x36
        [<ffffffff817c8352>] ops_exit_list+0x45/0x57
        [<ffffffff817c8d3d>] cleanup_net+0x13c/0x1cd
        [<ffffffff8108b05d>] process_one_work+0x255/0x4ad
        [<ffffffff8108af69>] ? process_one_work+0x161/0x4ad
        [<ffffffff8108b4b1>] worker_thread+0x1cd/0x2ab
        [<ffffffff8108b2e4>] ? process_scheduled_works+0x2f/0x2f
        [<ffffffff81090686>] kthread+0xd4/0xdc
        [<ffffffff8109ec8f>] ? local_clock+0x19/0x22
        [<ffffffff810905b2>] ? __kthread_parkme+0x83/0x83
        [<ffffffff81a2c0c8>] ret_from_fork+0x58/0x90
        [<ffffffff810905b2>] ? __kthread_parkme+0x83/0x83
      
      The issue was that as a part of exiting the default rules were being
      deleted which resulted in the local trie being unmerged.  By moving the
      freeing of the FIB tables up we can avoid the unmerge since there is no
      local table left when we call the fib4_rules_exit function.
      
      Fixes: 0ddcf43d ("ipv4: FIB Local/MAIN table collapse")
      Reported-by: NCong Wang <xiyou.wangcong@gmail.com>
      Signed-off-by: NAlexander Duyck <alexander.h.duyck@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ad88d051
  4. 30 3月, 2015 25 次提交
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