Re: [PATCH bpf-next v1 0/4] bpf: add __percpu tagging in vmlinux BTF

[patchwork-bot+netdevbpf@kernel.org]

Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:

On Fri,  4 Mar 2022 11:16:53 -0800 you wrote:
> This patchset is very much similar to Yonghong's patchset on adding
> __user tagging [1], where a "user" btf_type_tag was introduced to
> describe __user memory pointers. Similar approach can be applied on
> __percpu pointers. The __percpu attribute in kernel is used to identify
> pointers that point to memory allocated in percpu region. Normally,
> accessing __percpu memory requires using special functions like
> per_cpu_ptr() etc. Directly accessing __percpu pointer is meaningless.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v1,1/4] bpf: Fix checking PTR_TO_BTF_ID in check_mem_access
    https://git.kernel.org/bpf/bpf-next/c/bff61f6faedb
  - [bpf-next,v1,2/4] compiler_types: define __percpu as __attribute__((btf_type_tag("percpu")))
    https://git.kernel.org/bpf/bpf-next/c/9216c9162378
  - [bpf-next,v1,3/4] bpf: Reject programs that try to load __percpu memory.
    https://git.kernel.org/bpf/bpf-next/c/5844101a1be9
  - [bpf-next,v1,4/4] selftests/bpf: Add a test for btf_type_tag "percpu"
    https://git.kernel.org/bpf/bpf-next/c/50c6b8a9aea2

You are awesome, thank you!
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