netdev - pull-request: bpf-next 2025-08-21

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Message-ID: <20250821191827.2099022-1-martin.lau@linux.dev>
Date: Thu, 21 Aug 2025 12:18:27 -0700
From: Martin KaFai Lau <martin.lau@...ux.dev>
To: David Miller <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Alexei Starovoitov <ast@...nel.org>,
	Andrii Nakryiko <andrii@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Martin KaFai Lau <martin.lau@...nel.org>,
	netdev@...r.kernel.org,
	bpf@...r.kernel.org
Subject: pull-request: bpf-next 2025-08-21

Hi David, hi Jakub, hi Paolo, hi Eric,

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

We've added 9 non-merge commits during the last 3 day(s) which contain
a total of 13 files changed, 1027 insertions(+), 27 deletions(-).

The main changes are:

1) Added bpf dynptr support for accessing the metadata of a skb,
   from Jakub Sitnicki.
   The patches are merged from a stable branch bpf-next/skb-meta-dynptr.
   The same patches have also been merged into bpf-next/master.

Please consider pulling these changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git tags/for-netdev

Thanks a lot!

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

Eduard Zingerman, Jesse Brandeburg

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

The following changes since commit bab3ce404553de56242d7b09ad7ea5b70441ea41:

  Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue (2025-08-15 18:13:41 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git tags/for-netdev

for you to fetch changes up to 7e1371023accc40423ee27264480307a1ca70aa6:

  Merge branch 'bpf-next/skb-meta-dynptr' into 'bpf-next/net' (2025-08-18 17:58:21 -0700)

----------------------------------------------------------------
bpf-next-for-netdev

----------------------------------------------------------------
Jakub Sitnicki (9):
      bpf: Add dynptr type for skb metadata
      bpf: Enable read/write access to skb metadata through a dynptr
      selftests/bpf: Cover verifier checks for skb_meta dynptr type
      selftests/bpf: Pass just bpf_map to xdp_context_test helper
      selftests/bpf: Parametrize test_xdp_context_tuntap
      selftests/bpf: Cover read access to skb metadata via dynptr
      selftests/bpf: Cover write access to skb metadata via dynptr
      selftests/bpf: Cover read/write to skb metadata at an offset
      selftests/bpf: Cover metadata access from a modified skb clone

Martin KaFai Lau (2):
      Merge branch 'add-a-dynptr-type-for-skb-metadata-for-tc-bpf'
      Merge branch 'bpf-next/skb-meta-dynptr' into 'bpf-next/net'

 include/linux/bpf.h                                |   7 +-
 include/linux/filter.h                             |   6 +
 kernel/bpf/helpers.c                               |  11 +
 kernel/bpf/log.c                                   |   2 +
 kernel/bpf/verifier.c                              |  15 +-
 net/core/filter.c                                  |  57 +++
 tools/testing/selftests/bpf/bpf_kfuncs.h           |   3 +
 tools/testing/selftests/bpf/config                 |   1 +
 tools/testing/selftests/bpf/prog_tests/dynptr.c    |   2 +
 .../bpf/prog_tests/xdp_context_test_run.c          | 218 +++++++++--
 tools/testing/selftests/bpf/progs/dynptr_fail.c    | 258 +++++++++++++
 tools/testing/selftests/bpf/progs/dynptr_success.c |  55 +++
 tools/testing/selftests/bpf/progs/test_xdp_meta.c  | 419 +++++++++++++++++++++
 13 files changed, 1027 insertions(+), 27 deletions(-)