Re: [PATCH bpf-next 1/2] libbpf: add safer high-level wrappers for map operations

[patchwork-bot+netdevbpf@kernel.org]

Hello:

This series was applied to bpf/bpf-next.git (master)
by Daniel Borkmann <daniel@iogearbox.net>:

On Thu, 12 May 2022 15:07:12 -0700 you wrote:
> Add high-level API wrappers for most common and typical BPF map
> operations that works directly on instances of struct bpf_map * (so you
> don't have to call bpf_map__fd()) and validate key/value size
> expectations.
> 
> These helpers require users to specify key (and value, where
> appropriate) sizes when performing lookup/update/delete/etc. This forces
> user to actually think and validate (for themselves) those. This is
> a good thing as user is expected by kernel to implicitly provide correct
> key/value buffer sizes and kernel will just read/write necessary amount
> of data. If it so happens that user doesn't set up buffers correctly
> (which bit people for per-CPU maps especially) kernel either randomly
> overwrites stack data or return -EFAULT, depending on user's luck and
> circumstances. These high-level APIs are meant to prevent such
> unpleasant and hard to debug bugs.
> 
> [...]

Here is the summary with links:
  - [bpf-next,1/2] libbpf: add safer high-level wrappers for map operations
    https://git.kernel.org/bpf/bpf-next/c/737d0646a83c
  - [bpf-next,2/2] selftests/bpf: convert some selftests to high-level BPF map APIs
    https://git.kernel.org/bpf/bpf-next/c/b2531d4bdce1

You are awesome, thank you!
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