pull-request: bpf 2017-12-02

pull-request: bpf 2017-12-02

[Daniel Borkmann]

Hi David,

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Fix a compilation warning in xdp redirect tracepoint due to
   missing bpf.h include that pulls in struct bpf_map, from Xie.

2) Limit the maximum number of attachable BPF progs for a given
   perf event as long as uabi is not frozen yet. The hard upper
   limit is now 64 and therefore the same as with BPF multi-prog
   for cgroups. Also add related error checking for the sample
   BPF loader when enabling and attaching to the perf event, from
   Yonghong.

3) Specifically set the RLIMIT_MEMLOCK for the test_verifier_log
   case, so that the test case can always pass and not fail in
   some environments due to too low default limit, also from
   Yonghong.

4) Fix up a missing license header comment for kernel/bpf/offload.c,
   from Jakub.

5) Several fixes for bpftool, among others a crash on incorrect
   arguments when json output is used, error message handling
   fixes on unknown options and proper destruction of json writer
   for some exit cases, all from Quentin.

Please consider pulling these changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git

Thanks a lot!

----------------------------------------------------------------

The following changes since commit 2e724dca7749223204bbae21745c0e3fc932700a:

  tipc: eliminate access after delete in group_filter_msg() (2017-11-27 14:44:45 -0500)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git 

for you to fetch changes up to 0ec9552b43b98deb882bf48efd347be4bd7afc9f:

  samples/bpf: add error checking for perf ioctl calls in bpf loader (2017-12-01 02:59:21 +0100)

----------------------------------------------------------------
Daniel Borkmann (1):
      Merge branch 'bpftool-misc-fixes'

Jakub Kicinski (1):
      bpf: offload: add a license header

Quentin Monnet (6):
      tools: bpftool: fix crash on bad parameters with JSON
      tools: bpftool: clean up the JSON writer before exiting in usage()
      tools: bpftool: make error message from getopt_long() JSON-friendly
      tools: bpftool: remove spurious line break from error message
      tools: bpftool: unify installation directories
      tools: bpftool: declare phony targets as such

Xie XiuQi (1):
      trace/xdp: fix compile warning: 'struct bpf_map' declared inside parameter list

Yonghong Song (3):
      tools/bpf: adjust rlimit RLIMIT_MEMLOCK for test_verifier_log
      bpf: set maximum number of attached progs to 64 for a single perf tp
      samples/bpf: add error checking for perf ioctl calls in bpf loader

 include/trace/events/xdp.h                      |  1 +
 kernel/bpf/core.c                               |  3 ++-
 kernel/bpf/offload.c                            | 15 +++++++++++
 kernel/trace/bpf_trace.c                        |  8 ++++++
 samples/bpf/bpf_load.c                          | 14 ++++++++--
 tools/bpf/bpftool/Documentation/Makefile        |  2 +-
 tools/bpf/bpftool/Makefile                      |  7 ++---
 tools/bpf/bpftool/main.c                        | 36 ++++++++++++++++---------
 tools/bpf/bpftool/main.h                        |  5 ++--
 tools/testing/selftests/bpf/test_verifier_log.c |  7 +++++
 10 files changed, 77 insertions(+), 21 deletions(-)

Re: pull-request: bpf 2017-12-02

[David Miller]

From: Daniel Borkmann <daniel@iogearbox.net>
Date: Sat,  2 Dec 2017 02:05:04 +0100

> The following pull-request contains BPF updates for your *net* tree.

Pulled, thanks a lot Daniel.