1. 20 Nov, 2019 15 commits
  2. 19 Nov, 2019 10 commits
  3. 17 Nov, 2019 6 commits
  4. 16 Nov, 2019 9 commits
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5ffaf037
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "Misc fixes: a handful of AUX event handling related fixes, a Sparse
        fix and two ABI fixes"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/core: Fix missing static inline on perf_cgroup_switch()
        perf/core: Consistently fail fork on allocation failures
        perf/aux: Disallow aux_output for kernel events
        perf/core: Reattach a misplaced comment
        perf/aux: Fix the aux_output group inheritance fix
        perf/core: Disallow uncore-cgroup events
      5ffaf037
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 8be636dd
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Fix memory leak in xfrm_state code, from Steffen Klassert.
      
       2) Fix races between devlink reload operations and device
          setup/cleanup, from Jiri Pirko.
      
       3) Null deref in NFC code, from Stephan Gerhold.
      
       4) Refcount fixes in SMC, from Ursula Braun.
      
       5) Memory leak in slcan open error paths, from Jouni Hogander.
      
       6) Fix ETS bandwidth validation in hns3, from Yonglong Liu.
      
       7) Info leak on short USB request answers in ax88172a driver, from
          Oliver Neukum.
      
       8) Release mem region properly in ep93xx_eth, from Chuhong Yuan.
      
       9) PTP config timestamp flags validation, from Richard Cochran.
      
      10) Dangling pointers after SKB data realloc in seg6, from Andrea Mayer.
      
      11) Missing free_netdev() in gemini driver, from Chuhong Yuan.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (56 commits)
        ipmr: Fix skb headroom in ipmr_get_route().
        net: hns3: cleanup of stray struct hns3_link_mode_mapping
        net/smc: fix fastopen for non-blocking connect()
        rds: ib: update WR sizes when bringing up connection
        net: gemini: add missed free_netdev
        net: dsa: tag_8021q: Fix dsa_8021q_restore_pvid for an absent pvid
        seg6: fix skb transport_header after decap_and_validate()
        seg6: fix srh pointer in get_srh()
        net: stmmac: Use the correct style for SPDX License Identifier
        octeontx2-af: Use the correct style for SPDX License Identifier
        ptp: Extend the test program to check the external time stamp flags.
        mlx5: Reject requests to enable time stamping on both edges.
        igb: Reject requests that fail to enable time stamping on both edges.
        dp83640: Reject requests to enable time stamping on both edges.
        mv88e6xxx: Reject requests to enable time stamping on both edges.
        ptp: Introduce strict checking of external time stamp options.
        renesas: reject unsupported external timestamp flags
        mlx5: reject unsupported external timestamp flags
        igb: reject unsupported external timestamp flags
        dp83640: reject unsupported external timestamp flags
        ...
      8be636dd
    • Guillaume Nault's avatar
      ipmr: Fix skb headroom in ipmr_get_route(). · 7901cd97
      Guillaume Nault authored
      In route.c, inet_rtm_getroute_build_skb() creates an skb with no
      headroom. This skb is then used by inet_rtm_getroute() which may pass
      it to rt_fill_info() and, from there, to ipmr_get_route(). The later
      might try to reuse this skb by cloning it and prepending an IPv4
      header. But since the original skb has no headroom, skb_push() triggers
      skb_under_panic():
      
      skbuff: skb_under_panic: text:00000000ca46ad8a len:80 put:20 head:00000000cd28494e data:000000009366fd6b tail:0x3c end:0xec0 dev:veth0
      ------------[ cut here ]------------
      kernel BUG at net/core/skbuff.c:108!
      invalid opcode: 0000 [#1] SMP KASAN PTI
      CPU: 6 PID: 587 Comm: ip Not tainted 5.4.0-rc6+ #1
      Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-2.fc30 04/01/2014
      RIP: 0010:skb_panic+0xbf/0xd0
      Code: 41 a2 ff 8b 4b 70 4c 8b 4d d0 48 c7 c7 20 76 f5 8b 44 8b 45 bc 48 8b 55 c0 48 8b 75 c8 41 54 41 57 41 56 41 55 e8 75 dc 7a ff <0f> 0b 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00
      RSP: 0018:ffff888059ddf0b0 EFLAGS: 00010286
      RAX: 0000000000000086 RBX: ffff888060a315c0 RCX: ffffffff8abe4822
      RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88806c9a79cc
      RBP: ffff888059ddf118 R08: ffffed100d9361b1 R09: ffffed100d9361b0
      R10: ffff88805c68aee3 R11: ffffed100d9361b1 R12: ffff88805d218000
      R13: ffff88805c689fec R14: 000000000000003c R15: 0000000000000ec0
      FS:  00007f6af184b700(0000) GS:ffff88806c980000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 00007ffc8204a000 CR3: 0000000057b40006 CR4: 0000000000360ee0
      DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      Call Trace:
       skb_push+0x7e/0x80
       ipmr_get_route+0x459/0x6fa
       rt_fill_info+0x692/0x9f0
       inet_rtm_getroute+0xd26/0xf20
       rtnetlink_rcv_msg+0x45d/0x630
       netlink_rcv_skb+0x1a5/0x220
       rtnetlink_rcv+0x15/0x20
       netlink_unicast+0x305/0x3a0
       netlink_sendmsg+0x575/0x730
       sock_sendmsg+0xb5/0xc0
       ___sys_sendmsg+0x497/0x4f0
       __sys_sendmsg+0xcb/0x150
       __x64_sys_sendmsg+0x48/0x50
       do_syscall_64+0xd2/0xac0
       entry_SYSCALL_64_after_hwframe+0x49/0xbe
      
      Actually the original skb used to have enough headroom, but the
      reserve_skb() call was lost with the introduction of
      inet_rtm_getroute_build_skb() by commit 404eb77e ("ipv4: support
      sport, dport and ip_proto in RTM_GETROUTE").
      
      We could reserve some headroom again in inet_rtm_getroute_build_skb(),
      but this function shouldn't be responsible for handling the special
      case of ipmr_get_route(). Let's handle that directly in
      ipmr_get_route() by calling skb_realloc_headroom() instead of
      skb_clone().
      
      Fixes: 404eb77e ("ipv4: support sport, dport and ip_proto in RTM_GETROUTE")
      Signed-off-by: default avatarGuillaume Nault <gnault@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7901cd97
    • Salil Mehta's avatar
      net: hns3: cleanup of stray struct hns3_link_mode_mapping · b696083d
      Salil Mehta authored
      This patch cleans-up the stray left over code. It has no
      functionality impact.
      Signed-off-by: default avatarSalil Mehta <salil.mehta@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b696083d
    • Ursula Braun's avatar
      net/smc: fix fastopen for non-blocking connect() · 8204df72
      Ursula Braun authored
      FASTOPEN does not work with SMC-sockets. Since SMC allows fallback to
      TCP native during connection start, the FASTOPEN setsockopts trigger
      this fallback, if the SMC-socket is still in state SMC_INIT.
      But if a FASTOPEN setsockopt is called after a non-blocking connect(),
      this is broken, and fallback does not make sense.
      This change complements
      commit cd206360 ("net/smc: avoid fallback in case of non-blocking connect")
      and fixes the syzbot reported problem "WARNING in smc_unhash_sk".
      
      Reported-by: syzbot+8488cc4cf1c9e09b8b86@syzkaller.appspotmail.com
      Fixes: e1bbdd57 ("net/smc: reduce sock_put() for fallback sockets")
      Signed-off-by: default avatarUrsula Braun <ubraun@linux.ibm.com>
      Signed-off-by: default avatarKarsten Graul <kgraul@linux.ibm.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8204df72
    • Dag Moxnes's avatar
      rds: ib: update WR sizes when bringing up connection · a36e629e
      Dag Moxnes authored
      Currently WR sizes are updated from rds_ib_sysctl_max_send_wr and
      rds_ib_sysctl_max_recv_wr when a connection is shut down. As a result,
      a connection being down while rds_ib_sysctl_max_send_wr or
      rds_ib_sysctl_max_recv_wr are updated, will not update the sizes when
      it comes back up.
      
      Move resizing of WRs to rds_ib_setup_qp so that connections will be setup
      with the most current WR sizes.
      Signed-off-by: default avatarDag Moxnes <dag.moxnes@oracle.com>
      Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@oracle.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a36e629e
    • Chuhong Yuan's avatar
      net: gemini: add missed free_netdev · 18d647ae
      Chuhong Yuan authored
      This driver forgets to free allocated netdev in remove like
      what is done in probe failure.
      Add the free to fix it.
      Signed-off-by: default avatarChuhong Yuan <hslester96@gmail.com>
      Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      18d647ae
    • Vladimir Oltean's avatar
      net: dsa: tag_8021q: Fix dsa_8021q_restore_pvid for an absent pvid · c80ed84e
      Vladimir Oltean authored
      This sequence of operations:
      ip link set dev br0 type bridge vlan_filtering 1
      bridge vlan del dev swp2 vid 1
      ip link set dev br0 type bridge vlan_filtering 1
      ip link set dev br0 type bridge vlan_filtering 0
      
      apparently fails with the message:
      
      [   31.305716] sja1105 spi0.1: Reset switch and programmed static config. Reason: VLAN filtering
      [   31.322161] sja1105 spi0.1: Couldn't determine PVID attributes (pvid 0)
      [   31.328939] sja1105 spi0.1: Failed to setup VLAN tagging for port 1: -2
      [   31.335599] ------------[ cut here ]------------
      [   31.340215] WARNING: CPU: 1 PID: 194 at net/switchdev/switchdev.c:157 switchdev_port_attr_set_now+0x9c/0xa4
      [   31.349981] br0: Commit of attribute (id=6) failed.
      [   31.354890] Modules linked in:
      [   31.357942] CPU: 1 PID: 194 Comm: ip Not tainted 5.4.0-rc6-01792-gf4f632e07665-dirty #2062
      [   31.366167] Hardware name: Freescale LS1021A
      [   31.370437] [<c03144dc>] (unwind_backtrace) from [<c030e184>] (show_stack+0x10/0x14)
      [   31.378153] [<c030e184>] (show_stack) from [<c11d1c1c>] (dump_stack+0xe0/0x10c)
      [   31.385437] [<c11d1c1c>] (dump_stack) from [<c034c730>] (__warn+0xf4/0x10c)
      [   31.392373] [<c034c730>] (__warn) from [<c034c7bc>] (warn_slowpath_fmt+0x74/0xb8)
      [   31.399827] [<c034c7bc>] (warn_slowpath_fmt) from [<c11ca204>] (switchdev_port_attr_set_now+0x9c/0xa4)
      [   31.409097] [<c11ca204>] (switchdev_port_attr_set_now) from [<c117036c>] (__br_vlan_filter_toggle+0x6c/0x118)
      [   31.418971] [<c117036c>] (__br_vlan_filter_toggle) from [<c115d010>] (br_changelink+0xf8/0x518)
      [   31.427637] [<c115d010>] (br_changelink) from [<c0f8e9ec>] (__rtnl_newlink+0x3f4/0x76c)
      [   31.435613] [<c0f8e9ec>] (__rtnl_newlink) from [<c0f8eda8>] (rtnl_newlink+0x44/0x60)
      [   31.443329] [<c0f8eda8>] (rtnl_newlink) from [<c0f89f20>] (rtnetlink_rcv_msg+0x2cc/0x51c)
      [   31.451477] [<c0f89f20>] (rtnetlink_rcv_msg) from [<c1008df8>] (netlink_rcv_skb+0xb8/0x110)
      [   31.459796] [<c1008df8>] (netlink_rcv_skb) from [<c1008648>] (netlink_unicast+0x17c/0x1f8)
      [   31.468026] [<c1008648>] (netlink_unicast) from [<c1008980>] (netlink_sendmsg+0x2bc/0x3b4)
      [   31.476261] [<c1008980>] (netlink_sendmsg) from [<c0f43858>] (___sys_sendmsg+0x230/0x250)
      [   31.484408] [<c0f43858>] (___sys_sendmsg) from [<c0f44c84>] (__sys_sendmsg+0x50/0x8c)
      [   31.492209] [<c0f44c84>] (__sys_sendmsg) from [<c0301000>] (ret_fast_syscall+0x0/0x28)
      [   31.500090] Exception stack(0xedf47fa8 to 0xedf47ff0)
      [   31.505122] 7fa0:                   00000002 b6f2e060 00000003 beabd6a4 00000000 00000000
      [   31.513265] 7fc0: 00000002 b6f2e060 5d6e3213 00000128 00000000 00000001 00000006 000619c4
      [   31.521405] 7fe0: 00086078 beabd658 0005edbc b6e7ce68
      
      The reason is the implementation of br_get_pvid:
      
      static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg)
      {
      	if (!vg)
      		return 0;
      
      	smp_rmb();
      	return vg->pvid;
      }
      
      Since VID 0 is an invalid pvid from the bridge's point of view, let's
      add this check in dsa_8021q_restore_pvid to avoid restoring a pvid that
      doesn't really exist.
      
      Fixes: 5f33183b ("net: dsa: tag_8021q: Restore bridge VLANs when enabling vlan_filtering")
      Signed-off-by: default avatarVladimir Oltean <olteanv@gmail.com>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c80ed84e
    • David S. Miller's avatar
      Merge branch 'seg6-fixes-to-Segment-Routing-in-IPv6' · e84fa0ae
      David S. Miller authored
      Andrea Mayer says:
      
      ====================
      seg6: fixes to Segment Routing in IPv6
      
      This patchset is divided in 2 patches and it introduces some fixes
      to Segment Routing in IPv6, which are:
      
      - in function get_srh() fix the srh pointer after calling
        pskb_may_pull();
      
      - fix the skb->transport_header after calling decap_and_validate()
        function;
      
      Any comments on the patchset are welcome.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e84fa0ae