1. 11 May, 2012 1 commit
  2. 10 May, 2012 1 commit
    • Joe Perches's avatar
      8021q: Convert compare_ether_addr to ether_addr_equal · 53a2b3a1
      Joe Perches authored
      Use the new bool function ether_addr_equal to add
      some clarity and reduce the likelihood for misuse
      of compare_ether_addr for sorting.
      
      Done via cocci script:
      
      $ cat compare_ether_addr.cocci
      @@
      expression a,b;
      @@
      -	!compare_ether_addr(a, b)
      +	ether_addr_equal(a, b)
      
      @@
      expression a,b;
      @@
      -	compare_ether_addr(a, b)
      +	!ether_addr_equal(a, b)
      
      @@
      expression a,b;
      @@
      -	!ether_addr_equal(a, b) == 0
      +	ether_addr_equal(a, b)
      
      @@
      expression a,b;
      @@
      -	!ether_addr_equal(a, b) != 0
      +	!ether_addr_equal(a, b)
      
      @@
      expression a,b;
      @@
      -	ether_addr_equal(a, b) == 0
      +	!ether_addr_equal(a, b)
      
      @@
      expression a,b;
      @@
      -	ether_addr_equal(a, b) != 0
      +	ether_addr_equal(a, b)
      
      @@
      expression a,b;
      @@
      -	!!ether_addr_equal(a, b)
      +	ether_addr_equal(a, b)
      Signed-off-by: default avatarJoe Perches <joe@perches.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      53a2b3a1
  3. 02 Apr, 2012 1 commit
  4. 14 Dec, 2011 2 commits
  5. 09 Dec, 2011 5 commits
  6. 03 Dec, 2011 1 commit
  7. 16 Nov, 2011 2 commits
  8. 01 Nov, 2011 1 commit
  9. 31 Oct, 2011 2 commits
  10. 30 Oct, 2011 1 commit
    • Eric Dumazet's avatar
      vlan: allow nested vlan_do_receive() · 6a32e4f9
      Eric Dumazet authored
      commit 2425717b (net: allow vlan traffic to be received under bond)
      broke ARP processing on vlan on top of bonding.
      
             +-------+
      eth0 --| bond0 |---bond0.103
      eth1 --|       |
             +-------+
      
      52870.115435: skb_gro_reset_offset <-napi_gro_receive
      52870.115435: dev_gro_receive <-napi_gro_receive
      52870.115435: napi_skb_finish <-napi_gro_receive
      52870.115435: netif_receive_skb <-napi_skb_finish
      52870.115435: get_rps_cpu <-netif_receive_skb
      52870.115435: __netif_receive_skb <-netif_receive_skb
      52870.115436: vlan_do_receive <-__netif_receive_skb
      52870.115436: bond_handle_frame <-__netif_receive_skb
      52870.115436: vlan_do_receive <-__netif_receive_skb
      52870.115436: arp_rcv <-__netif_receive_skb
      52870.115436: kfree_skb <-arp_rcv
      
      Packet is dropped in arp_rcv() because its pkt_type was set to
      PACKET_OTHERHOST in the first vlan_do_receive() call, since no eth0.103
      exists.
      
      We really need to change pkt_type only if no more rx_handler is about to
      be called for the packet.
      Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
      Reviewed-by: default avatarJiri Pirko <jpirko@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6a32e4f9
  11. 15 Sep, 2011 1 commit
    • Jiri Pirko's avatar
      net: consolidate and fix ethtool_ops->get_settings calling · 4bc71cb9
      Jiri Pirko authored
      This patch does several things:
      - introduces __ethtool_get_settings which is called from ethtool code and
        from drivers as well. Put ASSERT_RTNL there.
      - dev_ethtool_get_settings() is replaced by __ethtool_get_settings()
      - changes calling in drivers so rtnl locking is respected. In
        iboe_get_rate was previously ->get_settings() called unlocked. This
        fixes it. Also prb_calc_retire_blk_tmo() in af_packet.c had the same
        problem. Also fixed by calling __dev_get_by_index() instead of
        dev_get_by_index() and holding rtnl_lock for both calls.
      - introduces rtnl_lock in bnx2fc_vport_create() and fcoe_vport_create()
        so bnx2fc_if_create() and fcoe_if_create() are called locked as they
        are from other places.
      - use __ethtool_get_settings() in bonding code
      Signed-off-by: default avatarJiri Pirko <jpirko@redhat.com>
      
      v2->v3:
      	-removed dev_ethtool_get_settings()
      	-added ASSERT_RTNL into __ethtool_get_settings()
      	-prb_calc_retire_blk_tmo - use __dev_get_by_index() and lock
      	 around it and __ethtool_get_settings() call
      v1->v2:
              add missing export_symbol
      Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> [except FCoE bits]
      Acked-by: default avatarRalf Baechle <ralf@linux-mips.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4bc71cb9
  12. 19 Aug, 2011 1 commit
  13. 18 Aug, 2011 1 commit
  14. 02 Aug, 2011 1 commit
  15. 28 Jul, 2011 1 commit
    • Neil Horman's avatar
      net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared · 550fd08c
      Neil Horman authored
      After the last patch, We are left in a state in which only drivers calling
      ether_setup have IFF_TX_SKB_SHARING set (we assume that drivers touching real
      hardware call ether_setup for their net_devices and don't hold any state in
      their skbs.  There are a handful of drivers that violate this assumption of
      course, and need to be fixed up.  This patch identifies those drivers, and marks
      them as not being able to support the safe transmission of skbs by clearning the
      IFF_TX_SKB_SHARING flag in priv_flags
      Signed-off-by: default avatarNeil Horman <nhorman@tuxdriver.com>
      CC: Karsten Keil <isdn@linux-pingi.de>
      CC: "David S. Miller" <davem@davemloft.net>
      CC: Jay Vosburgh <fubar@us.ibm.com>
      CC: Andy Gospodarek <andy@greyhouse.net>
      CC: Patrick McHardy <kaber@trash.net>
      CC: Krzysztof Halasa <khc@pm.waw.pl>
      CC: "John W. Linville" <linville@tuxdriver.com>
      CC: Greg Kroah-Hartman <gregkh@suse.de>
      CC: Marcel Holtmann <marcel@holtmann.org>
      CC: Johannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      550fd08c
  16. 21 Jul, 2011 5 commits
  17. 17 Jul, 2011 1 commit
    • David Lamparter's avatar
      net: vlan, qlcnic: make vlan_find_dev private · 69ecca86
      David Lamparter authored
      there is only one user of vlan_find_dev outside of the actual vlan code:
      qlcnic uses it to iterate over some VLANs it knows.
      
      let's just make vlan_find_dev private to the VLAN code and have the
      iteration in qlcnic be a bit more direct. (a few rcu dereferences less
      too)
      Signed-off-by: default avatarDavid Lamparter <equinox@diac24.net>
      Cc: Patrick McHardy <kaber@trash.net>
      Cc: Amit Kumar Salecha <amit.salecha@qlogic.com>
      Cc: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
      Cc: linux-driver@qlogic.com
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      69ecca86
  18. 14 Jul, 2011 2 commits
  19. 06 Jul, 2011 1 commit
  20. 17 Jun, 2011 2 commits
  21. 11 Jun, 2011 1 commit
    • Jiri Pirko's avatar
      vlan: Fix the ingress VLAN_FLAG_REORDER_HDR check · 0b5c9db1
      Jiri Pirko authored
      Testing of VLAN_FLAG_REORDER_HDR does not belong in vlan_untag
      but rather in vlan_do_receive.  Otherwise the vlan header
      will not be properly put on the packet in the case of
      vlan header accelleration.
      
      As we remove the check from vlan_check_reorder_header
      rename it vlan_reorder_header to keep the naming clean.
      
      Fix up the skb->pkt_type early so we don't look at the packet
      after adding the vlan tag, which guarantees we don't goof
      and look at the wrong field.
      
      Use a simple if statement instead of a complicated switch
      statement to decided that we need to increment rx_stats
      for a multicast packet.
      
      Hopefully at somepoint we will just declare the case where
      VLAN_FLAG_REORDER_HDR is cleared as unsupported and remove
      the code.  Until then this keeps it working correctly.
      Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
      Signed-off-by: default avatarJiri Pirko <jpirko@redhat.com>
      Acked-by: default avatarChangli Gao <xiaosuo@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0b5c9db1
  22. 02 Jun, 2011 2 commits
  23. 26 May, 2011 1 commit
  24. 25 May, 2011 1 commit
  25. 12 May, 2011 1 commit
  26. 10 May, 2011 1 commit
    • Eric Dumazet's avatar
      vlan: fix GVRP at dismantle time · 55aee10d
      Eric Dumazet authored
      ip link add link eth2 eth2.103 type vlan id 103 gvrp on loose_binding on
      ip link set eth2.103 up
      rmmod tg3    # driver providing eth2
      
       BUG: unable to handle kernel NULL pointer dereference at           (null)
       IP: [<ffffffffa0030c9e>] garp_request_leave+0x3e/0xc0 [garp]
       PGD 11d251067 PUD 11b9e0067 PMD 0
       Oops: 0000 [#1] SMP
       last sysfs file: /sys/devices/virtual/net/eth2.104/ifindex
       CPU 0
       Modules linked in: tg3(-) 8021q garp nfsd lockd auth_rpcgss sunrpc libphy sg [last unloaded: x_tables]
      
       Pid: 11494, comm: rmmod Tainted: G        W   2.6.39-rc6-00261-gfd71257-dirty #580 HP ProLiant BL460c G6
       RIP: 0010:[<ffffffffa0030c9e>]  [<ffffffffa0030c9e>] garp_request_leave+0x3e/0xc0 [garp]
       RSP: 0018:ffff88007a19bae8  EFLAGS: 00010286
       RAX: 0000000000000000 RBX: ffff88011b5e2000 RCX: 0000000000000002
       RDX: 0000000000000000 RSI: 0000000000000175 RDI: ffffffffa0030d5b
       RBP: ffff88007a19bb18 R08: 0000000000000001 R09: ffff88011bd64a00
       R10: ffff88011d34ec00 R11: 0000000000000000 R12: 0000000000000002
       R13: ffff88007a19bc48 R14: ffff88007a19bb88 R15: 0000000000000001
       FS:  0000000000000000(0000) GS:ffff88011fc00000(0063) knlGS:00000000f77d76c0
       CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
       CR2: 0000000000000000 CR3: 000000011a675000 CR4: 00000000000006f0
       DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
       DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
       Process rmmod (pid: 11494, threadinfo ffff88007a19a000, task ffff8800798595c0)
       Stack:
        ffff88007a19bb36 ffff88011c84b800 ffff88011b5e2000 ffff88007a19bc48
        ffff88007a19bb88 0000000000000006 ffff88007a19bb38 ffffffffa003a5f6
        ffff88007a19bb38 670088007a19bba8 ffff88007a19bb58 ffffffffa00397e7
       Call Trace:
        [<ffffffffa003a5f6>] vlan_gvrp_request_leave+0x46/0x50 [8021q]
        [<ffffffffa00397e7>] vlan_dev_stop+0xb7/0xc0 [8021q]
        [<ffffffff8137e427>] __dev_close_many+0x87/0xe0
        [<ffffffff8137e507>] dev_close_many+0x87/0x110
        [<ffffffff8137e630>] rollback_registered_many+0xa0/0x240
        [<ffffffff8137e7e9>] unregister_netdevice_many+0x19/0x60
        [<ffffffffa00389eb>] vlan_device_event+0x53b/0x550 [8021q]
        [<ffffffff8143f448>] ? ip6mr_device_event+0xa8/0xd0
        [<ffffffff81479d03>] notifier_call_chain+0x53/0x80
        [<ffffffff81062539>] __raw_notifier_call_chain+0x9/0x10
        [<ffffffff81062551>] raw_notifier_call_chain+0x11/0x20
        [<ffffffff8137df82>] call_netdevice_notifiers+0x32/0x60
        [<ffffffff8137e69f>] rollback_registered_many+0x10f/0x240
        [<ffffffff8137e85f>] rollback_registered+0x2f/0x40
        [<ffffffff8137e8c8>] unregister_netdevice_queue+0x58/0x90
        [<ffffffff8137e9eb>] unregister_netdev+0x1b/0x30
        [<ffffffffa005d73f>] tg3_remove_one+0x6f/0x10b [tg3]
      
      We should call vlan_gvrp_request_leave() from unregister_vlan_dev(),
      not from vlan_dev_stop(), because vlan_gvrp_uninit_applicant()
      is called right after unregister_netdevice_queue(). In batch mode,
      unregister_netdevice_queue() doesn’t immediately call vlan_dev_stop().
      Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      55aee10d