netdev - Re: [PATCH bpf] riscv, bpf: Fix possible infinite tailcall when CONFIG_CFI

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Message-Id: 
 <172852382954.1532001.10566819180554959939.git-patchwork-notify@kernel.org>
Date: Thu, 10 Oct 2024 01:30:29 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Pu Lehui <pulehui@...weicloud.com>
Cc: bpf@...r.kernel.org, linux-riscv@...ts.infradead.org,
 netdev@...r.kernel.org, bjorn@...nel.org, puranjay@...nel.org,
 ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
 martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org,
 yonghong.song@...ux.dev, john.fastabend@...il.com, kpsingh@...nel.org,
 sdf@...ichev.me, haoluo@...gle.com, jolsa@...nel.org, palmer@...belt.com,
 paul.walmsley@...ive.com, aou@...s.berkeley.edu
Subject: Re: [PATCH bpf] riscv,
 bpf: Fix possible infinite tailcall when CONFIG_CFI_CLANG is enabled

Hello:

This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@...nel.org>:

On Tue,  8 Oct 2024 12:45:44 +0000 you wrote:
> From: Pu Lehui <pulehui@...wei.com>
> 
> When CONFIG_CFI_CLANG is enabled, the number of prologue instructions
> skipped by tailcall needs to include the kcfi instruction, otherwise the
> TCC will be initialized every tailcall is called, which may result in
> infinite tailcalls.
> 
> [...]

Here is the summary with links:
  - [bpf] riscv, bpf: Fix possible infinite tailcall when CONFIG_CFI_CLANG is enabled
    https://git.kernel.org/bpf/bpf/c/30a59cc79754

You are awesome, thank you!
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