pull-request: bpf 2020-11-28

pull-request: bpf 2020-11-28

[Daniel Borkmann]

Hi David, hi Jakub,

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

We've added 6 non-merge commits during the last 6 day(s) which contain
a total of 9 files changed, 61 insertions(+), 23 deletions(-).

The main changes are:

1) Do not reference the skb for xsk's generic TX side since when looped
   back into RX it might crash in generic XDP, from Björn Töpel.

2) Fix umem cleanup on a partially set up xsk socket when being destroyed,
   from Magnus Karlsson.

3) Fix an incorrect netdev reference count when failing xsk_bind() operation,
   from Marek Majtyka.

4) Fix bpftool to set an error code on failed calloc() in build_btf_type_table(),
   from Zhen Lei.

Please consider pulling these changes from:

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

Thanks a lot!

Also thanks to reporters, reviewers and testers of commits in this pull-request:

Björn Töpel, Hulk Robot, Magnus Karlsson, Marek Majtyka, Yonghong Song

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

The following changes since commit 3383176efc0fb0c0900a191026468a58668b4214:

  bnxt_en: fix error return code in bnxt_init_board() (2020-11-19 21:49:01 -0800)

are available in the Git repository at:

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

for you to fetch changes up to 9a44bc9449cfe7e39dbadf537ff669fb007a9e63:

  bpf: Add MAINTAINERS entry for BPF LSM (2020-11-25 21:40:27 +0100)

----------------------------------------------------------------
Björn Töpel (1):
      net, xsk: Avoid taking multiple skbuff references

Jesper Dangaard Brouer (1):
      MAINTAINERS: Update XDP and AF_XDP entries

KP Singh (1):
      bpf: Add MAINTAINERS entry for BPF LSM

Magnus Karlsson (1):
      xsk: Fix umem cleanup bug at socket destruct

Marek Majtyka (1):
      xsk: Fix incorrect netdev reference count

Zhen Lei (1):
      bpftool: Fix error return value in build_btf_type_table

 MAINTAINERS               | 23 +++++++++++++++++++++--
 include/linux/netdevice.h | 14 +++++++++++++-
 include/net/xdp_sock.h    |  1 +
 net/core/dev.c            |  8 ++------
 net/xdp/xdp_umem.c        | 19 ++++++++++++++++---
 net/xdp/xdp_umem.h        |  2 +-
 net/xdp/xsk.c             | 10 ++--------
 net/xdp/xsk_buff_pool.c   |  6 ++++--
 tools/bpf/bpftool/btf.c   |  1 +
 9 files changed, 61 insertions(+), 23 deletions(-)

Re: pull-request: bpf 2020-11-28

[Jakub Kicinski]

On Sat, 28 Nov 2020 01:51:04 +0100 Daniel Borkmann wrote:
> 1) Do not reference the skb for xsk's generic TX side since when looped
>    back into RX it might crash in generic XDP, from Björn Töpel.
> 
> 2) Fix umem cleanup on a partially set up xsk socket when being destroyed,
>    from Magnus Karlsson.
> 
> 3) Fix an incorrect netdev reference count when failing xsk_bind() operation,
>    from Marek Majtyka.
> 
> 4) Fix bpftool to set an error code on failed calloc() in build_btf_type_table(),
>    from Zhen Lei.

Pulled thanks!