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  1. 04 Jun, 2018 13 commits
  3. 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
  5. 02 Jun, 2018 15 commits
  7. 01 Jun, 2018 8 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
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