Skip to content

L
linux
Switch branch/tag
  1. 18 Oct, 2017 2 commits
    • Li Zhijian's avatar
      perf test shell trace+probe_libc_inet_pton.sh: Be compatible with Debian/Ubuntu · 74f8e22c
      Li Zhijian authored 
      In debian/ubuntu, libc.so is located at a different place,
/lib/x86_64-linux-gnu/libc-2.23.so, so it outputs like this when testing:

  PING ::1(::1) 56 data bytes
  64 bytes from ::1: icmp_seq=1 ttl=64 time=0.040 ms

  --- ::1 ping statistics ---
  1 packets transmitted, 1 received, 0% packet loss, time 0ms
  rtt min/avg/max/mdev = 0.040/0.040/0.040/0.000 ms
  0.000 probe_libc:inet_pton:(7f0e2db741c0))
  __GI___inet_pton (/lib/x86_64-linux-gnu/libc-2.23.so)
  getaddrinfo (/lib/x86_64-linux-gnu/libc-2.23.so)
  [0xffffa9d40f34ff4d] (/bin/ping)

Fix up the libc path to make sure this test works in more OSes.

Committer testing:

When this test fails one can use 'perf test -v', i.e. in verbose mode, where
it'll show the expected backtrace, so, after applying this test:

On Fedora 26:

  # perf test -v ping
  62: probe libc's inet_pton & backtrace it with ping       :
  --- start ---
  test child forked, pid 23322
  PING ::1(::1) 56 data bytes
  64 bytes from ::1: icmp_seq=1 ttl=64 time=0.058 ms
  --- ::1 ping statistics ---
  1 packets transmitted, 1 received, 0% packet loss, time 0ms
  rtt min/avg/max/mdev = 0.058/0.058/0.058/0.000 ms
  0.000 probe_libc:inet_pton:(7fe344310d80))
  __GI___inet_pton (/usr/lib64/libc-2.25.so)
  getaddrinfo (/usr/lib64/libc-2.25.so)
  _init (/usr/bin/ping)
  test child finished with 0
  ---- end ----
  probe libc's inet_pton & backtrace it with ping: Ok
  #
Signed-off-by: default avatarLi Zhijian <lizhijian@cn.fujitsu.com>
Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Philip Li <philip.li@intel.com>
Link: http://lkml.kernel.org/r/1508315649-18836-1-git-send-email-lizhijian@cn.fujitsu.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      74f8e22c
    • Jin Yao's avatar
      perf xyarray: Fix wrong processing when closing evsel fd · 3d8bba95
      Jin Yao authored 
      In current xyarray code, xyarray__max_x() returns max_y, and xyarray__max_y()
returns max_x.

It's confusing and for code logic it looks not correct.

Error happens when closing evsel fd. Let's see this scenario:

1. Allocate an fd (pseudo-code)

  perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
  {
	evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int));
  }

  xyarray__new(int xlen, int ylen, size_t entry_size)
  {
	size_t row_size = ylen * entry_size;
	struct xyarray *xy = zalloc(sizeof(*xy) + xlen * row_size);

	xy->entry_size = entry_size;
	xy->row_size   = row_size;
	xy->entries    = xlen * ylen;
	xy->max_x      = xlen;
	xy->max_y      = ylen;
	......
  }

So max_x is ncpus, max_y is nthreads and row_size = nthreads * 4.

2. Use perf syscall and get the fd

  int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
		     struct thread_map *threads)
  {
	for (cpu = 0; cpu < cpus->nr; cpu++) {

		for (thread = 0; thread < nthreads; thread++) {
			int fd, group_fd;

			fd = sys_perf_event_open(&evsel->attr, pid, cpus->map[cpu],
						 group_fd, flags);

			FD(evsel, cpu, thread) = fd;
	}
  }

  static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
  {
	return &xy->contents[x * xy->row_size + y * xy->entry_size];
  }

These codes don't have issues. The issue happens in the closing of fd.

3. Close fd.

  void perf_evsel__close_fd(struct perf_evsel *evsel)
  {
	int cpu, thread;

	for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++)
		for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) {
			close(FD(evsel, cpu, thread));
			FD(evsel, cpu, thread) = -1;
		}
  }

  Since xyarray__max_x() returns max_y (nthreads) and xyarry__max_y()
  returns max_x (ncpus), so above code is actually to be:

        for (cpu = 0; cpu < nthreads; cpu++)
                for (thread = 0; thread < ncpus; ++thread) {
                        close(FD(evsel, cpu, thread));
                        FD(evsel, cpu, thread) = -1;
                }

  It's not correct!

This change is introduced by "475fb533" ("perf evsel: Fix buffer overflow
while freeing events")

This fix is to let xyarray__max_x() return max_x (ncpus) and
let xyarry__max_y() return max_y (nthreads)

Committer note:

This was also fixed by Ravi Bangoria, who provided the same patch,
noticing the problem with 'perf record':

<quote Ravi>
I see 'perf record -p <pid>' crashes with following log:

   *** Error in `./perf': free(): invalid next size (normal): 0x000000000298b340 ***
   ======= Backtrace: =========
   /lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f7fd85c87e5]
   /lib/x86_64-linux-gnu/libc.so.6(+0x8037a)[0x7f7fd85d137a]
   /lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7f7fd85d553c]
   ./perf(perf_evsel__close+0xb4)[0x4b7614]
   ./perf(perf_evlist__delete+0x100)[0x4ab180]
   ./perf(cmd_record+0x1d9)[0x43a5a9]
   ./perf[0x49aa2f]
   ./perf(main+0x631)[0x427841]
   /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f7fd8571830]
   ./perf(_start+0x29)[0x427a59]
</>
Signed-off-by: default avatarJin Yao <yao.jin@linux.intel.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Fixes: d74be476 ("perf xyarray: Save max_x, max_y")
Link: http://lkml.kernel.org/r/1508339478-26674-1-git-send-email-yao.jin@linux.intel.com
Link: http://lkml.kernel.org/r/1508327446-15302-1-git-send-email-ravi.bangoria@linux.vnet.ibm.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      3d8bba95
  3. 17 Oct, 2017 2 commits
    • Namhyung Kim's avatar
      perf buildid-list: Fix crash when processing PERF_RECORD_NAMESPACE · 7f0cd236
      Namhyung Kim authored 
      Thomas reported that 'perf buildid-list' gets a SEGFAULT due to NULL
pointer deref when he ran it on a data with namespace events.  It was
because the buildid_id__mark_dso_hit_ops lacks the namespace event
handler and perf_too__fill_default() didn't set it.

  Program received signal SIGSEGV, Segmentation fault.
  0x0000000000000000 in ?? ()
  Missing separate debuginfos, use: dnf debuginfo-install audit-libs-2.7.7-1.fc25.s390x bzip2-libs-1.0.6-21.fc25.s390x elfutils-libelf-0.169-1.fc25.s390x
  +elfutils-libs-0.169-1.fc25.s390x libcap-ng-0.7.8-1.fc25.s390x numactl-libs-2.0.11-2.ibm.fc25.s390x openssl-libs-1.1.0e-1.1.ibm.fc25.s390x perl-libs-5.24.1-386.fc25.s390x
  +python-libs-2.7.13-2.fc25.s390x slang-2.3.0-7.fc25.s390x xz-libs-5.2.3-2.fc25.s390x zlib-1.2.8-10.fc25.s390x
  (gdb) where
  #0  0x0000000000000000 in ?? ()
  #1  0x00000000010fad6a in machines__deliver_event (machines=<optimized out>, machines@entry=0x2c6fd18,
      evlist=<optimized out>, event=event@entry=0x3fffdf00470, sample=0x3ffffffe880, sample@entry=0x3ffffffe888,
      tool=tool@entry=0x1312968 <build_id.mark_dso_hit_ops>, file_offset=1136) at util/session.c:1287
  #2  0x00000000010fbf4e in perf_session__deliver_event (file_offset=1136, tool=0x1312968 <build_id.mark_dso_hit_ops>,
      sample=0x3ffffffe888, event=0x3fffdf00470, session=0x2c6fc30) at util/session.c:1340
  #3  perf_session__process_event (session=0x2c6fc30, session@entry=0x0, event=event@entry=0x3fffdf00470,
      file_offset=file_offset@entry=1136) at util/session.c:1522
  #4  0x00000000010fddde in __perf_session__process_events (file_size=11880, data_size=<optimized out>,
      data_offset=<optimized out>, session=0x0) at util/session.c:1899
  #5  perf_session__process_events (session=0x0, session@entry=0x2c6fc30) at util/session.c:1953
  #6  0x000000000103b2ac in perf_session__list_build_ids (with_hits=<optimized out>, force=<optimized out>)
      at builtin-buildid-list.c:83
  #7  cmd_buildid_list (argc=<optimized out>, argv=<optimized out>) at builtin-buildid-list.c:115
  #8  0x00000000010a026c in run_builtin (p=0x1311f78 <commands+24>, argc=argc@entry=2, argv=argv@entry=0x3fffffff3c0)
      at perf.c:296
  #9  0x000000000102bc00 in handle_internal_command (argv=<optimized out>, argc=2) at perf.c:348
  #10 run_argv (argcp=<synthetic pointer>, argv=<synthetic pointer>) at perf.c:392
  #11 main (argc=<optimized out>, argv=0x3fffffff3c0) at perf.c:536
  (gdb)

Fix it by adding a stub event handler for namespace event.

Committer testing:

Further clarifying, plain using 'perf buildid-list' will not end up in a
SEGFAULT when processing a perf.data file with namespace info:

  # perf record -a --namespaces sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 2.024 MB perf.data (1058 samples) ]
  # perf buildid-list | wc -l
  38
  # perf buildid-list | head -5
  e2a171c7b905826fc8494f0711ba76ab6abbd604 /lib/modules/4.14.0-rc3+/build/vmlinux
  874840a02d8f8a31cedd605d0b8653145472ced3 /lib/modules/4.14.0-rc3+/kernel/arch/x86/kvm/kvm-intel.ko
  ea7223776730cd8a22f320040aae4d54312984bc /lib/modules/4.14.0-rc3+/kernel/drivers/gpu/drm/i915/i915.ko
  5961535e6732a8edb7f22b3f148bb2fa2e0be4b9 /lib/modules/4.14.0-rc3+/kernel/drivers/gpu/drm/drm.ko
  f045f54aa78cf1931cc893f78b6cbc52c72a8cb1 /usr/lib64/libc-2.25.so
  #

It is only when one asks for checking what of those entries actually had
samples, i.e. when we use either -H or --with-hits, that we will process
all the PERF_RECORD_ events, and since tools/perf/builtin-buildid-list.c
neither explicitely set a perf_tool.namespaces() callback nor the
default stub was set that we end up, when processing a
PERF_RECORD_NAMESPACE record, causing a SEGFAULT:

  # perf buildid-list -H
  Segmentation fault (core dumped)
  ^C
  #
Reported-and-Tested-by: default avatarThomas-Mich Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
Fixes: f3b3614a ("perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info")
Link: http://lkml.kernel.org/r/20171017132900.11043-1-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      7f0cd236
    • Taeung Song's avatar
      perf record: Fix documentation for a inexistent option '-l' · 3f50f614
      Taeung Song authored 
      'perf record' had a '-l' option that meant "scale counter values" a very
long time ago, but it currently belongs to 'perf stat' as '-c'.  So
remove it. I found this problem in the below case.

    $ perf record -e cycles -l sleep 3
      Error: unknown switch `l
Signed-off-by: default avatarTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1507907412-19813-1-git-send-email-treeze.taeung@gmail.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      3f50f614
  5. 16 Oct, 2017 1 commit
  7. 13 Oct, 2017 3 commits
  9. 10 Oct, 2017 4 commits
  11. 09 Oct, 2017 2 commits
    • Arnaldo Carvalho de Melo's avatar
      tools include uapi bpf.h: Sync kernel ABI header with tooling header · aa7b4e02
      Arnaldo Carvalho de Melo authored 
      Silences the checker:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'

The 90caccdd ("bpf: fix bpf_tail_call() x64 JIT") cset only updated
a comment in uapi/bpf.h.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-rwx2cqbf0x1lwa1krsr6e6hd@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      aa7b4e02
    • Mark Rutland's avatar
      perf pmu: Unbreak perf record for arm/arm64 with events with explicit PMU · 66ec1191
      Mark Rutland authored 
      Currently, perf record is broken on arm/arm64 systems when the PMU is
specified explicitly as part of the event, e.g.

$ ./perf record -e armv8_cortex_a53/cpu_cycles/u true

In such cases, perf record fails to open events unless
perf_event_paranoid is set to -1, even if the PMU in question supports
mode exclusion. Further, even when perf_event_paranoid is toggled, no
samples are recorded.

This is an unintended side effect of commit:

  e3ba76de ("perf tools: Force uncore events to system wide monitoring)

... which assumes that if a PMU has an associated cpu_map, it is an
uncore PMU, and forces events for such PMUs to be system-wide.

This is not true for arm/arm64 systems, which can have heterogeneous
CPUs. To account for this, multiple CPU PMUs are exposed, each with a
"cpus" field under sysfs, which the perf tool parses into a cpu_map. ARM
PMUs do not have a "cpumask" file, and only have a "cpus" file. For the
gory details as to why, see commit:

 7e3fcffe ("perf pmu: Support alternative sysfs cpumask")

Given all of this, we can instead identify uncore PMUs by explicitly
checking for a "cpumask" file, and restore arm/arm64 PMU support back to
a working state. This patch does so, adding a new perf_pmu::is_uncore
field, and splitting the existing cpumask parsing so that it can be
reused.
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Tested-by Will Deacon <will.deacon@arm.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: 4.12+ <stable@vger.kernel.org>
Fixes: e3ba76de ("perf tools: Force uncore events to system wide monitoring)
Link: http://lkml.kernel.org/r/1507315102-5942-1-git-send-email-mark.rutland@arm.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      66ec1191
  13. 06 Oct, 2017 1 commit
    • Mark Santaniello's avatar
      perf script: Add missing separator for "-F ip,brstack" (and brstackoff) · e9516c08
      Mark Santaniello authored 
      Prior to commit 55b9b508 ("perf script: Support -F brstack,dso and
brstacksym,dso"), we were printing a space before the brstack data. It
seems that this space was important.  Without it, parsing is difficult.

Very sorry for the mistake.

Notice here how the "ip" and "brstack" run together:

$ perf script -F ip,brstack | head -n 1
          22e18c40x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0 0x22e195d/0x22e1990/P/-/-/0 0x22e18e9/0x22e1943/P/-/-/0 0x22e1a69/0x22e18c0/P/-/-/0 0x22e19f7/0x22e1a20/P/-/-/0 0x22e1910/0x22e19ee/P/-/-/0 0x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0 0x22e195d/0x22e1990/P/-/-/0 0x22e18e9/0x22e1943/P/-/-/0 0x22e1a69/0x22e18c0/P/-/-/0 0x22e19f7/0x22e1a20/P/-/-/0 0x22e1910/0x22e19ee/P/-/-/0 0x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0

After this diff, sanity is restored:

$ perf script -F ip,brstack | head -n 1
          22e18c4 0x22e19e2/0x22e190b/P/-/-/0  0x22e19a1/0x22e19d0/P/-/-/0  0x22e195d/0x22e1990/P/-/-/0  0x22e18e9/0x22e1943/P/-/-/0  0x22e1a69/0x22e18c0/P/-/-/0  0x22e19f7/0x22e1a20/P/-/-/0  0x22e1910/0x22e19ee/P/-/-/0  0x22e19e2/0x22e190b/P/-/-/0  0x22e19a1/0x22e19d0/P/-/-/0  0x22e195d/0x22e1990/P/-/-/0  0x22e18e9/0x22e1943/P/-/-/0  0x22e1a69/0x22e18c0/P/-/-/0  0x22e19f7/0x22e1a20/P/-/-/0  0x22e1910/0x22e19ee/P/-/-/0  0x22e19e2/0x22e190b/P/-/-/0  0x22e19a1/0x22e19d0/P/-/-/0
Signed-off-by: default avatarMark Santaniello <marksan@fb.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: 4.13+ <stable@vger.kernel.org>
Fixes: 55b9b508 ("perf script: Support -F brstack,dso and brstacksym,dso")
Link: http://lkml.kernel.org/r/20171006080722.3442046-1-marksan@fb.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      e9516c08
  15. 05 Oct, 2017 7 commits
    • Ingo Molnar's avatar
      Merge tag 'perf-urgent-for-mingo-4.14-20171005' of... · 874d48f2
      Ingo Molnar authored 
      Merge tag 'perf-urgent-for-mingo-4.14-20171005' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fix from Arnaldo Carvalho de Melo:

- Two functions from different binaries can have the same start address. Thus,
  comparing only the start address in match_chain() leads to inconsistent
  callchains. Fix this by adding a check for DSOs as well (Ravi Bangoria)
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      874d48f2
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid · 77ede3a0
      Linus Torvalds authored 
      Pull HID subsystem fixes from Jiri Kosina:

 - buffer management size fix for i2c-hid driver, from Adrian Salido

 - tool ID regression fixes for Wacom driver from Jason Gerecke

 - a few small assorted fixes and a few device ID additions

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  Revert "HID: multitouch: Support ALPS PTP stick with pid 0x120A"
  HID: hidraw: fix power sequence when closing device
  HID: wacom: Always increment hdev refcount within wacom_get_hdev_data
  HID: wacom: generic: Clear ABS_MISC when tool leaves proximity
  HID: wacom: generic: Send MSC_SERIAL and ABS_MISC when leaving prox
  HID: i2c-hid: allocate hid buffers for real worst case
  HID: rmi: Make sure the HID device is opened on resume
  HID: multitouch: Support ALPS PTP stick with pid 0x120A
  HID: multitouch: support buttons and trackpoint on Lenovo X1 Tab Gen2
  HID: wacom: Correct coordinate system of touchring and pen twist
  HID: wacom: Properly report negative values from Intuos Pro 2 Bluetooth
  HID: multitouch: Fix system-control buttons not working
  HID: add multi-input quirk for IDC6680 touchscreen
  HID: wacom: leds: Don't try to control the EKR's read-only LEDs
  HID: wacom: bits shifted too much for 9th and 10th buttons
      77ede3a0
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 9a431ef9
      Linus Torvalds authored 
      Pull networking fixes from David Miller:

 1) Check iwlwifi 9000 reorder buffer out-of-space condition properly,
    from Sara Sharon.

 2) Fix RCU splat in qualcomm rmnet driver, from Subash Abhinov
    Kasiviswanathan.

 3) Fix session and tunnel release races in l2tp, from Guillaume Nault
    and Sabrina Dubroca.

 4) Fix endian bug in sctp_diag_dump(), from Dan Carpenter.

 5) Several mlx5 driver fixes from the Mellanox folks (max flow counters
    cap check, invalid memory access in IPoIB support, etc.)

 6) tun_get_user() should bail if skb->len is zero, from Alexander
    Potapenko.

 7) Fix RCU lookups in inetpeer, from Eric Dumazet.

 8) Fix locking in packet_do_bund().

 9) Handle cb->start() error properly in netlink dump code, from Jason
    A. Donenfeld.

10) Handle multicast properly in UDP socket early demux code. From Paolo
    Abeni.

11) Several erspan bug fixes in ip_gre, from Xin Long.

12) Fix use-after-free in socket filter code, in order to handle the
    fact that listener lock is no longer taken during the three-way TCP
    handshake. From Eric Dumazet.

13) Fix infoleak in RTM_GETSTATS, from Nikolay Aleksandrov.

14) Fix tail call generation in x86-64 BPF JIT, from Alexei Starovoitov.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (77 commits)
  net: 8021q: skip packets if the vlan is down
  bpf: fix bpf_tail_call() x64 JIT
  net: stmmac: dwmac-rk: Add RK3128 GMAC support
  rndis_host: support Novatel Verizon USB730L
  net: rtnetlink: fix info leak in RTM_GETSTATS call
  socket, bpf: fix possible use after free
  mlxsw: spectrum_router: Track RIF of IPIP next hops
  mlxsw: spectrum_router: Move VRF refcounting
  net: hns3: Fix an error handling path in 'hclge_rss_init_hw()'
  net: mvpp2: Fix clock resource by adding an optional bus clock
  r8152: add Linksys USB3GIGV1 id
  l2tp: fix l2tp_eth module loading
  ip_gre: erspan device should keep dst
  ip_gre: set tunnel hlen properly in erspan_tunnel_init
  ip_gre: check packet length and mtu correctly in erspan_xmit
  ip_gre: get key from session_id correctly in erspan_rcv
  tipc: use only positive error codes in messages
  ppp: fix __percpu annotation
  udp: perform source validation for mcast early demux
  IPv4: early demux can return an error code
  ...
      9a431ef9
    • Ravi Bangoria's avatar
      perf callchain: Compare dsos (as well) for CCKEY_FUNCTION · c1fbc0cf
      Ravi Bangoria authored 
      Two functions from different binaries can have same start address. Thus,
comparing only start address in match_chain() leads to inconsistent
callchains. Fix this by adding a check for dsos as well.

Ex, https://www.spinics.net/lists/linux-perf-users/msg04067.htmlReported-by: default avatarAlexander Pozdneev <pozdneyev@gmail.com>
Signed-off-by: default avatarRavi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Yao Jin <yao.jin@linux.intel.com>
Cc: zhangmengting@huawei.com
Link: http://lkml.kernel.org/r/20171005091234.5874-1-ravi.bangoria@linux.vnet.ibm.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      c1fbc0cf
    • Vishakha Narvekar's avatar
      net: 8021q: skip packets if the vlan is down · e769fcec
      Vishakha Narvekar authored 
      If the vlan is down, free the packet instead of proceeding with other
processing, or counting it as received.  If vlan interfaces are used
as slaves for bonding, with arp monitoring for connectivity, if the rx
counter is seen to be incrementing, then the bond device will not
observe that the interface is down.

CC: David S. Miller <davem@davemloft.net>
Signed-off-by: default avatarVishakha Narvekar <Vishakha.Narvekar@dell.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e769fcec
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 42b76d0e
      Linus Torvalds authored 
      Pull ARM SoC fixes from Olof Johansson:
 "Our first batch of fixes this release cycle, unfortunately a bit
  noisier than usual. Two major groups stand out:

   - Some pinctril dts/dtsi changes for stm32 due to a new driver being
     merged during the merge window, and this aligns the DT contents
     between the old format and the new. This could arguably be moved to
     the next merge window but it also seemed relatively harmless to
     include now.

   - Amlogic/meson had driver changes merged that required devicetree
     changes to avoid functional/performance regressions. I've already
     asked them to be more careful about this going forward, and making
     sure drivers are compatible with older DTs when they make these
     kind of changes. The platform is actively being upstreamed so
     there's a few things in flight, we've seen this happen before and
     sometimes it's hard to catch in time.

  Besides that there is the usual mix of minor fixes"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (33 commits)
  ARM: dts: stm32: use right pinctrl compatible for stm32f469
  ARM: dts: stm32: Fix STMPE1600 binding on stm32429i-eval board
  ARM: defconfig: update Gemini defconfig
  ARM: defconfig: FRAMEBUFFER_CONSOLE can no longer be =m
  arm64: dts: rockchip: add the grf clk for dw-mipi-dsi on rk3399
  reset: Restrict RESET_HSDK to ARC_SOC_HSDK or COMPILE_TEST
  ARM: dts: da850-evm: add serial and ethernet aliases
  ARM: dts: am43xx-epos-evm: Remove extra CPSW EMAC entry
  ARM: dts: am33xx: Add spi alias to match SOC schematics
  ARM: OMAP2+: hsmmc: fix logic to call either omap_hsmmc_init or omap_hsmmc_late_init but not both
  ARM: dts: dra7: Set a default parent to mcasp3_ahclkx_mux
  ARM: OMAP2+: dra7xx: Set OPT_CLKS_IN_RESET flag for gpio1
  ARM: dts: nokia n900: drop unneeded/undocumented parts of the dts
  arm64: dts: rockchip: Correct MIPI DPHY PLL clock on rk3399
  arm64: dt marvell: Fix AP806 system controller size
  MAINTAINERS: add Macchiatobin maintainers entry
  ARC: reset: remove the misleading v1 suffix all over
  ARC: reset: add missing DT binding documentation for HSDKv1 reset driver
  ARC: reset: Only build on archs that have IOMEM
  ARM: at91: Replace uses of virt_to_phys with __pa_symbol
  ...
      42b76d0e
    • James Hogan's avatar
      Update James Hogan's email address · e0a86312
      James Hogan authored 
      Update my imgtec.com and personal email address to my kernel.org one in
a few places as MIPS will soon no longer be part of Imagination
Technologies, and add mappings in .mailcap so get_maintainer.pl reports
the right address.
Signed-off-by: default avatarJames Hogan <jhogan@kernel.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      e0a86312
  17. 04 Oct, 2017 18 commits
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7