linux-hardening - Re: [PATCH 0/5] kcfi: Prepare for GCC support

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Message-Id: 
 <176040432799.3390136.12370033021047300981.git-patchwork-notify@kernel.org>
Date: Tue, 14 Oct 2025 01:12:07 +0000
From: patchwork-bot+linux-riscv@...nel.org
To: Kees Cook <kees@...nel.org>
Cc: linux-riscv@...ts.infradead.org, peterz@...radead.org,
 samitolvanen@...gle.com, dwmw2@...radead.org, linus.walleij@...aro.org,
 mark.rutland@....com, puranjay@...nel.org, corbet@....net, nathan@...nel.org,
 x86@...nel.org, linux-doc@...r.kernel.org, linux-kbuild@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, llvm@...ts.linux.dev,
 linux-hardening@...r.kernel.org
Subject: Re: [PATCH 0/5] kcfi: Prepare for GCC support

Hello:

This series was applied to riscv/linux.git (for-next)
by Peter Zijlstra <peterz@...radead.org>:

On Mon, 25 Aug 2025 07:25:47 -0700 you wrote:
> Hi,
> 
> With KCFI support in GCC coming[1], we need to make some (relatively
> small) changes in the kernel to deal with it:
> 
> - move __nocfi out of compilers-clang.h (so GCC can see it too)
> - add cfi=debug so future Kees can find breakage easier
> - remove problematic __noinitretpoline usage
> - rename CONFIG_CFI_CLANG to CONFIG_CFI (otherwise is it quite confusing)
> 
> [...]

Here is the summary with links:
  - [1/5] compiler_types.h: Move __nocfi out of compiler-specific header
    https://git.kernel.org/riscv/c/038c7dc66e27
  - [2/5] x86/traps: Clarify KCFI instruction layout
    https://git.kernel.org/riscv/c/628a15e0536a
  - [3/5] x86/cfi: Add option for cfi=debug bootparam
    (no matching commit)
  - [4/5] x86/cfi: Remove __noinitretpoline and __noretpoline
    https://git.kernel.org/riscv/c/0b815825b1b0
  - [5/5] kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI
    (no matching commit)

You are awesome, thank you!
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