Re: [PATCH bpf-next v4 00/16] Make TC BPF helpers preserve skb metadata

Hello:

This series was applied to bpf/bpf-next.git (net)
by Martin KaFai Lau [off-list ref]:

On Wed, 05 Nov 2025 21:19:37 +0100 you wrote:

Changes in v4:
- Fix copy-paste bug in check_metadata() test helper (AI review)
- Add "out of scope" section (at the bottom)
- Link to v3: https://lore.kernel.org/r/20251026-skb-meta-rx-path-v3-0-37cceebb95d3@cloudflare.com (local)

Changes in v3:
- Use the already existing BPF_STREAM_STDERR const in tests (Martin)
- Unclone skb head on bpf_dynptr_write to skb metadata (patch 3) (Martin)
- Swap order of patches 1 & 2 to refer to skb_postpush_data_move() in docs
- Mention in skb_data_move() docs how to move just the metadata
- Note in pskb_expand_head() docs to move metadata after skb_push() (Jakub)
- Link to v2: https://lore.kernel.org/r/20251019-skb-meta-rx-path-v2-0-f9a58f3eb6d6@cloudflare.com (local)

[...]

Here is the summary with links:
  - [bpf-next,v4,01/16] net: Helper to move packet data and metadata after skb_push/pull
    https://git.kernel.org/bpf/bpf-next/c/8989d328dfe7
  - [bpf-next,v4,02/16] net: Preserve metadata on pskb_expand_head
    https://git.kernel.org/bpf/bpf-next/c/290fc0be09e2
  - [bpf-next,v4,03/16] bpf: Unclone skb head on bpf_dynptr_write to skb metadata
    https://git.kernel.org/bpf/bpf-next/c/f38499ff45f5
  - [bpf-next,v4,04/16] vlan: Make vlan_remove_tag return nothing
    https://git.kernel.org/bpf/bpf-next/c/b85be58e2f7c
  - [bpf-next,v4,05/16] bpf: Make bpf_skb_vlan_pop helper metadata-safe
    https://git.kernel.org/bpf/bpf-next/c/efd35c26239b
  - [bpf-next,v4,06/16] bpf: Make bpf_skb_vlan_push helper metadata-safe
    https://git.kernel.org/bpf/bpf-next/c/55ffc98b44d2
  - [bpf-next,v4,07/16] bpf: Make bpf_skb_adjust_room metadata-safe
    https://git.kernel.org/bpf/bpf-next/c/be83105d38ab
  - [bpf-next,v4,08/16] bpf: Make bpf_skb_change_proto helper metadata-safe
    https://git.kernel.org/bpf/bpf-next/c/8cfc172ce28e
  - [bpf-next,v4,09/16] bpf: Make bpf_skb_change_head helper metadata-safe
    https://git.kernel.org/bpf/bpf-next/c/fb206fc3129b
  - [bpf-next,v4,10/16] selftests/bpf: Verify skb metadata in BPF instead of userspace
    https://git.kernel.org/bpf/bpf-next/c/967534e57c44
  - [bpf-next,v4,11/16] selftests/bpf: Dump skb metadata on verification failure
    https://git.kernel.org/bpf/bpf-next/c/9ef9ac15a527
  - [bpf-next,v4,12/16] selftests/bpf: Expect unclone to preserve skb metadata
    https://git.kernel.org/bpf/bpf-next/c/1e1357fde808
  - [bpf-next,v4,13/16] selftests/bpf: Cover skb metadata access after vlan push/pop helper
    https://git.kernel.org/bpf/bpf-next/c/354d020c29f7
  - [bpf-next,v4,14/16] selftests/bpf: Cover skb metadata access after bpf_skb_adjust_room
    https://git.kernel.org/bpf/bpf-next/c/29960e635b01
  - [bpf-next,v4,15/16] selftests/bpf: Cover skb metadata access after change_head/tail helper
    https://git.kernel.org/bpf/bpf-next/c/85d454afef61
  - [bpf-next,v4,16/16] selftests/bpf: Cover skb metadata access after bpf_skb_change_proto
    https://git.kernel.org/bpf/bpf-next/c/d2c5cca3fb58

You are awesome, thank you!
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