netdev - Re: [PATCH bpf-next 1/2] libbpf: Fix ld_imm64 copy logic for ksym in light skeleton.

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Message-Id: <167933221784.21251.7059999522754844144.git-patchwork-notify@kernel.org>
Date:   Mon, 20 Mar 2023 17:10:17 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     davem@...emloft.net, daniel@...earbox.net, andrii@...nel.org,
        martin.lau@...nel.org, void@...ifault.com, davemarchevsky@...a.com,
        tj@...nel.org, memxor@...il.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH bpf-next 1/2] libbpf: Fix ld_imm64 copy logic for ksym in
 light skeleton.

Hello:

This series was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@...nel.org>:

On Sun, 19 Mar 2023 13:30:13 -0700 you wrote:
> From: Alexei Starovoitov <ast@...nel.org>
> 
> Unlike normal libbpf the light skeleton 'loader' program is doing
> btf_find_by_name_kind() call at run-time to find ksym in the kernel and
> populate its {btf_id, btf_obj_fd} pair in ld_imm64 insn. To avoid doing the
> search multiple times for the same ksym it remembers the first patched ld_imm64
> insn and copies {btf_id, btf_obj_fd} from it into subsequent ld_imm64 insn.
> Fix a bug in copying logic, since it may incorrectly clear BPF_PSEUDO_BTF_ID flag.
> 
> [...]

Here is the summary with links:
  - [bpf-next,1/2] libbpf: Fix ld_imm64 copy logic for ksym in light skeleton.
    https://git.kernel.org/bpf/bpf-next/c/a506d6ce1dd1
  - [bpf-next,2/2] selftest/bpf: Add a test case for ld_imm64 copy logic.
    https://git.kernel.org/bpf/bpf-next/c/bb4a6a923729

You are awesome, thank you!
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