1. 04 Jun, 2018 8 commits
  2. 03 Jun, 2018 4 commits
    • Ingo Molnar's avatar
      Merge tag 'perf-urgent-for-mingo-4.17-20180602' of... · 4e9ae0d3
      Ingo Molnar authored
      Merge tag 'perf-urgent-for-mingo-4.17-20180602' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
      
      Pull perf/urgent fixes from Carvalho de Melo:
      
      - Update prctl and cpufeatures.h tools/ copies with the kernel sources
        originals, which makes 'perf trace' know about the new prctl options
        for speculation control and silences the build warnings (Arnaldo Carvalho de Melo)
      
      - Update insn.h in Intel-PT instruction decoder with its original from from the
        kernel sources, to silence build warnings, no effect on the actual tools this
        time around (Arnaldo Carvalho de Melo)
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      4e9ae0d3
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 874cd339
      Linus Torvalds authored
      Pull scheduler fixes from Thomas Gleixner:
      
       - two patches addressing the problem that the scheduler allows under
         certain conditions user space tasks to be scheduled on CPUs which are
         not yet fully booted which causes a few subtle and hard to debug
         issue
      
       - add a missing runqueue clock update in the deadline scheduler which
         triggers a warning under certain circumstances
      
       - fix a silly typo in the scheduler header file
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/headers: Fix typo
        sched/deadline: Fix missing clock update
        sched/core: Require cpu_active() in select_task_rq(), for user tasks
        sched/core: Fix rules for running on online && !active CPUs
      874cd339
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 26bdace7
      Linus Torvalds authored
      Pull perf tooling fixes from Thomas Gleixner:
      
       - fix 'perf test Session topology' segfault on s390 (Thomas Richter)
      
       - fix NULL return handling in bpf__prepare_load() (YueHaibing)
      
       - fix indexing on Coresight ETM packet queue decoder (Mathieu Poirier)
      
       - fix perf.data format description of NRCPUS header (Arnaldo Carvalho
         de Melo)
      
       - update perf.data documentation section on cpu topology
      
       - handle uncore event aliases in small groups properly (Kan Liang)
      
       - add missing perf_sample.addr into python sample dictionary (Leo Yan)
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf tools: Fix perf.data format description of NRCPUS header
        perf script python: Add addr into perf sample dict
        perf data: Update documentation section on cpu topology
        perf cs-etm: Fix indexing for decoder packet queue
        perf bpf: Fix NULL return handling in bpf__prepare_load()
        perf test: "Session topology" dumps core on s390
        perf parse-events: Handle uncore event aliases in small groups properly
      26bdace7
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 918fe1b3
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Infinite loop in _decode_session6(), from Eric Dumazet.
      
       2) Pass correct argument to nla_strlcpy() in netfilter, also from Eric
          Dumazet.
      
       3) Out of bounds memory access in ipv6 srh code, from Mathieu Xhonneux.
      
       4) NULL deref in XDP_REDIRECT handling of tun driver, from Toshiaki
          Makita.
      
       5) Incorrect idr release in cls_flower, from Paul Blakey.
      
       6) Probe error handling fix in davinci_emac, from Dan Carpenter.
      
       7) Memory leak in XPS configuration, from Alexander Duyck.
      
       8) Use after free with cloned sockets in kcm, from Kirill Tkhai.
      
       9) MTU handling fixes fo ip_tunnel and ip6_tunnel, from Nicolas
          Dichtel.
      
      10) Fix UAPI hole in bpf data structure for 32-bit compat applications,
          from Daniel Borkmann.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
        bpf: fix uapi hole for 32 bit compat applications
        net: usb: cdc_mbim: add flag FLAG_SEND_ZLP
        ip6_tunnel: remove magic mtu value 0xFFF8
        ip_tunnel: restore binding to ifaces with a large mtu
        net: dsa: b53: Add BCM5389 support
        kcm: Fix use-after-free caused by clonned sockets
        net-sysfs: Fix memory leak in XPS configuration
        ixgbe: fix parsing of TC actions for HW offload
        net: ethernet: davinci_emac: fix error handling in probe()
        net/ncsi: Fix array size in dumpit handler
        cls_flower: Fix incorrect idr release when failing to modify rule
        net/sonic: Use dma_mapping_error()
        xfrm Fix potential error pointer dereference in xfrm_bundle_create.
        vhost_net: flush batched heads before trying to busy polling
        tun: Fix NULL pointer dereference in XDP redirect
        be2net: Fix error detection logic for BE3
        net: qmi_wwan: Add Netgear Aircard 779S
        mlxsw: spectrum: Forbid creation of VLAN 1 over port/LAG
        atm: zatm: fix memcmp casting
        iwlwifi: pcie: compare with number of IRQs requested for, not number of CPUs
        ...
      918fe1b3
  3. 02 Jun, 2018 15 commits
  4. 01 Jun, 2018 13 commits
    • Arnaldo Carvalho de Melo's avatar
      perf tools intel-pt-decoder: Update insn.h from the kernel sources · 0b3a1838
      Arnaldo Carvalho de Melo authored
      To pick up the changes in:
      
        ee6a7354 ("kprobes/x86: Prohibit probing on exception masking instructions")
      
      That doesn't entail changes in tooling, but silences this perf build
      warning:
      
        Warning: Intel PT: x86 instruction decoder header at 'tools/perf/util/intel-pt-decoder/insn.h' differs from latest version at 'arch/x86/include/asm/insn.h'
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-o3wfwjnyh7r8l0gi9q3y9f44@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0b3a1838
    • Arnaldo Carvalho de Melo's avatar
      tools headers: Sync x86 cpufeatures.h with the kernel sources · a20d23bb
      Arnaldo Carvalho de Melo authored
      To pick up changes found in these csets:
      
       11fb0683 x86/speculation: Add virtualized speculative store bypass disable support
       d1035d97 x86/cpufeatures: Add FEATURE_ZEN
       52817587 x86/cpufeatures: Disentangle SSBD enumeration
       7eb8956a x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
       e7c587da x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
       9f65fb29 x86/bugs: Rename _RDS to _SSBD
       764f3c21 x86/bugs/AMD: Add support to disable RDS on Fam[15,16,17]h if requested
       24f7fc83 x86/bugs: Provide boot parameters for the spec_store_bypass_disable mitigation
       0cc5fa00 x86/cpufeatures: Add X86_FEATURE_RDS
       c456442c x86/bugs: Expose /sys/../spec_store_bypass
      
      The usage of this file in tools doesn't use the newly added X86_FEATURE_
      defines:
      
        CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
        CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o
        LD       /tmp/build/perf/bench/perf-in.o
        LD       /tmp/build/perf/perf-in.o
      
      Silencing this perf build warning:
      
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tom Lendacky <thomas.lendacky@amd.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-mrwyauyov8c7s048abg26khg@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a20d23bb
    • Arnaldo Carvalho de Melo's avatar
      tools headers: Synchronize prctl.h ABI header · 63b89a19
      Arnaldo Carvalho de Melo authored
      To pick up changes from:
      
        $ git log --oneline -2 -i include/uapi/linux/prctl.h
        356e4bff prctl: Add force disable speculation
        b617cfc8 prctl: Add speculation control prctls
      
        $ tools/perf/trace/beauty/prctl_option.sh > before.c
        $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h
        $ tools/perf/trace/beauty/prctl_option.sh > after.c
        $ diff -u before.c after.c
        --- before.c	2018-06-01 10:39:53.834073962 -0300
        +++ after.c	2018-06-01 10:42:11.307985394 -0300
        @@ -35,6 +35,8 @@
                [42] = "GET_THP_DISABLE",
                [45] = "SET_FP_MODE",
                [46] = "GET_FP_MODE",
        +       [52] = "GET_SPECULATION_CTRL",
        +       [53] = "SET_SPECULATION_CTRL",
         };
         static const char *prctl_set_mm_options[] = {
       	  [1] = "START_CODE",
        $
      
      This will be used by 'perf trace' to show these strings when beautifying
      the prctl syscall args. At some point we'll be able to say something
      like:
      
      	'perf trace --all-cpus -e prctl(option=*SPEC*)'
      
      To filter by arg by name.
      
        This silences this warning when building tools/perf:
      
          Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h'
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-zztsptwhc264r8wg44tqh5gp@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      63b89a19
    • Arnaldo Carvalho de Melo's avatar
      perf trace beauty prctl: Default header_dir to cwd to work without parms · 0d690fc0
      Arnaldo Carvalho de Melo authored
      Useful when checking the effects of header synchs for the files it uses
      as a input to generate string tables, in retrospect this is how it
      should've been done from day 1, not requiring the header_dir to be set
      on the Makefile, will change everything later, so that the only parm,
      common to all generators will be $(srctree) and $(beauty_outdir).
      
      So, to see what it generates, just call it without any parameters:
      
        $ tools/perf/trace/beauty/prctl_option.sh
        static const char *prctl_options[] = {
      	  [1] = "SET_PDEATHSIG",
      	  [2] = "GET_PDEATHSIG",
      	  [3] = "GET_DUMPABLE",
      	  [4] = "SET_DUMPABLE",
      	  [5] = "GET_UNALIGN",
      	  [6] = "SET_UNALIGN",
      	  [7] = "GET_KEEPCAPS",
      	  [8] = "SET_KEEPCAPS",
      	  [9] = "GET_FPEMU",
      	  [10] = "SET_FPEMU",
      	  [11] = "GET_FPEXC",
      	  [12] = "SET_FPEXC",
      	  [13] = "GET_TIMING",
      	  [14] = "SET_TIMING",
      	  [15] = "SET_NAME",
      	  [16] = "GET_NAME",
      	  [19] = "GET_ENDIAN",
      	  [20] = "SET_ENDIAN",
      	  [21] = "GET_SECCOMP",
      	  [22] = "SET_SECCOMP",
      	  [25] = "GET_TSC",
      	  [26] = "SET_TSC",
      	  [27] = "GET_SECUREBITS",
      	  [28] = "SET_SECUREBITS",
      	  [29] = "SET_TIMERSLACK",
      	  [30] = "GET_TIMERSLACK",
      	  [35] = "SET_MM",
      	  [36] = "SET_CHILD_SUBREAPER",
      	  [37] = "GET_CHILD_SUBREAPER",
      	  [38] = "SET_NO_NEW_PRIVS",
      	  [39] = "GET_NO_NEW_PRIVS",
      	  [40] = "GET_TID_ADDRESS",
      	  [41] = "SET_THP_DISABLE",
      	  [42] = "GET_THP_DISABLE",
      	  [45] = "SET_FP_MODE",
      	  [46] = "GET_FP_MODE",
        };
        static const char *prctl_set_mm_options[] = {
      	  [1] = "START_CODE",
      	  [2] = "END_CODE",
      	  [3] = "START_DATA",
      	  [4] = "END_DATA",
      	  [5] = "START_STACK",
      	  [6] = "START_BRK",
      	  [7] = "BRK",
      	  [8] = "ARG_START",
      	  [9] = "ARG_END",
      	  [10] = "ENV_START",
      	  [11] = "ENV_END",
      	  [12] = "AUXV",
      	  [13] = "EXE_FILE",
      	  [14] = "MAP",
      	  [15] = "MAP_SIZE",
        };
        $
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-qtotspuztydjttxi7k6mec6h@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0d690fc0
    • Daniele Palmas's avatar
      net: usb: cdc_mbim: add flag FLAG_SEND_ZLP · 9f7c7283
      Daniele Palmas authored
      Testing Telit LM940 with ICMP packets > 14552 bytes revealed that
      the modem needs FLAG_SEND_ZLP to properly work, otherwise the cdc
      mbim data interface won't be anymore responsive.
      Signed-off-by: default avatarDaniele Palmas <dnlplm@gmail.com>
      Acked-by: default avatarBjørn Mork <bjorn@mork.no>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9f7c7283
    • David S. Miller's avatar
      Merge branch 'tunnel-mtus' · 8a118015
      David S. Miller authored
      Nicolas Dichtel says:
      
      ====================
      ip[6] tunnels: fix mtu calculations
      
      The first patch restores the possibility to bind an ip4 tunnel to an
      interface whith a large mtu.
      The second patch was spotted after the first fix. I also target it to net
      because it fixes the max mtu value that can be used for ipv6 tunnels.
      
      v2: remove the 0xfff8 in ip_tunnel_newlink()
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8a118015
    • Nicolas Dichtel's avatar
      ip6_tunnel: remove magic mtu value 0xFFF8 · f7ff1fde
      Nicolas Dichtel authored
      I don't know where this value comes from (probably a copy and paste and
      paste and paste ...).
      Let's use standard values which are a bit greater.
      
      Link: https://git.kernel.org/pub/scm/linux/kernel/git/davem/netdev-vger-cvs.git/commit/?id=e5afd356a411aSigned-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f7ff1fde
    • Nicolas Dichtel's avatar
      ip_tunnel: restore binding to ifaces with a large mtu · 82612de1
      Nicolas Dichtel authored
      After commit f6cc9c05, the following conf is broken (note that the
      default loopback mtu is 65536, ie IP_MAX_MTU + 1):
      
      $ ip tunnel add gre1 mode gre local 10.125.0.1 remote 10.125.0.2 dev lo
      add tunnel "gre0" failed: Invalid argument
      $ ip l a type dummy
      $ ip l s dummy1 up
      $ ip l s dummy1 mtu 65535
      $ ip tunnel add gre1 mode gre local 10.125.0.1 remote 10.125.0.2 dev dummy1
      add tunnel "gre0" failed: Invalid argument
      
      dev_set_mtu() doesn't allow to set a mtu which is too large.
      First, let's cap the mtu returned by ip_tunnel_bind_dev(). Second, remove
      the magic value 0xFFF8 and use IP_MAX_MTU instead.
      0xFFF8 seems to be there for ages, I don't know why this value was used.
      
      With a recent kernel, it's also possible to set a mtu > IP_MAX_MTU:
      $ ip l s dummy1 mtu 66000
      After that patch, it's also possible to bind an ip tunnel on that kind of
      interface.
      
      CC: Petr Machata <petrm@mellanox.com>
      CC: Ido Schimmel <idosch@mellanox.com>
      Link: https://git.kernel.org/pub/scm/linux/kernel/git/davem/netdev-vger-cvs.git/commit/?id=e5afd356a411a
      Fixes: f6cc9c05 ("ip_tunnel: Emit events for post-register MTU changes")
      Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
      Reviewed-by: default avatarIdo Schimmel <idosch@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      82612de1
    • David S. Miller's avatar
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec · ccfde6e2
      David S. Miller authored
      Steffen Klassert says:
      
      ====================
      pull request (net): ipsec 2018-05-31
      
      1) Avoid possible overflow of the offset variable
         in  _decode_session6(), this fixes an infinite
         lookp there. From Eric Dumazet.
      
      2) We may use an error pointer in the error path of
         xfrm_bundle_create(). Fix this by returning this
         pointer directly to the caller.
      
      Please pull or let me know if there are problems.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ccfde6e2
    • Damien Thébault's avatar
      net: dsa: b53: Add BCM5389 support · a95691bc
      Damien Thébault authored
      This patch adds support for the BCM5389 switch connected through MDIO.
      Signed-off-by: default avatarDamien Thébault <damien.thebault@vitec.com>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a95691bc
    • Kirill Tkhai's avatar
      kcm: Fix use-after-free caused by clonned sockets · eb7f54b9
      Kirill Tkhai authored
      (resend for properly queueing in patchwork)
      
      kcm_clone() creates kernel socket, which does not take net counter.
      Thus, the net may die before the socket is completely destructed,
      i.e. kcm_exit_net() is executed before kcm_done().
      
      Reported-by: syzbot+5f1a04e374a635efc426@syzkaller.appspotmail.com
      Signed-off-by: default avatarKirill Tkhai <ktkhai@virtuozzo.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      eb7f54b9
    • Alexander Duyck's avatar
      net-sysfs: Fix memory leak in XPS configuration · 664088f8
      Alexander Duyck authored
      This patch reorders the error cases in showing the XPS configuration so
      that we hold off on memory allocation until after we have verified that we
      can support XPS on a given ring.
      
      Fixes: 184c449f ("net: Add support for XPS with QoS via traffic classes")
      Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      664088f8
    • Ondřej Hlavatý's avatar
      ixgbe: fix parsing of TC actions for HW offload · 16e6653c
      Ondřej Hlavatý authored
      The previous code was optimistic, accepting the offload of whole action
      chain when there was a single known action (drop/redirect). This results
      in offloading a rule which should not be offloaded, because its behavior
      cannot be reproduced in the hardware.
      
      For example:
      
      $ tc filter add dev eno1 parent ffff: protocol ip \
          u32 ht 800: order 1 match tcp src 42 FFFF \
          action mirred egress mirror dev enp1s16 pipe \
          drop
      
      The controller is unable to mirror the packet to a VF, but still
      offloads the rule by dropping the packet.
      
      Change the approach of the function to a pessimistic one, rejecting the
      chain when an unknown action is found. This is better suited for future
      extensions.
      
      Note that both recognized actions always return TC_ACT_SHOT, therefore
      it is safe to ignore actions behind them.
      Signed-off-by: default avatarOndřej Hlavatý <ohlavaty@redhat.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      16e6653c