netdev - Re: [PATCH bpf-next] selftests/bpf: Fix map

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Date:   Wed, 15 Feb 2023 17:30:16 +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, memxor@...il.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH bpf-next] selftests/bpf: Fix map_kptr test.

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Martin KaFai Lau <martin.lau@...nel.org>:

On Tue, 14 Feb 2023 15:50:51 -0800 you wrote:
> From: Alexei Starovoitov <ast@...nel.org>
> 
> The compiler is optimizing out majority of unref_ptr read/writes, so the test
> wasn't testing much. For example, one could delete '__kptr' tag from
> 'struct prog_test_ref_kfunc __kptr *unref_ptr;' and the test would still "pass".
> 
> Convert it to volatile stores. Confirmed by comparing bpf asm before/after.
> 
> [...]

Here is the summary with links:
  - [bpf-next] selftests/bpf: Fix map_kptr test.
    https://git.kernel.org/bpf/bpf-next/c/62d101d5f422

You are awesome, thank you!
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