Re: [PATCH v5 0/7] x86/fpu: Restore and reinforce signal frame portability
From: Chang S. Bae
Date: Mon Sep 14 2026 - 14:22:03 EST
On 9/7/2026 9:34 PM, Andrei Vagin wrote:
Thanks for the update! I've provided my tags for the remaining patches in this series. Hopefully, this can move forward (perhaps with some further shaping) toward integration.
v5: Address Chang's comments:
- Documentation:
- Expanded Documentation/arch/x86/xstate.rst with a dedicated
section describing struct _fpx_sw_bytes, 32-bit vs 64-bit frame
layout differences, and architectural portability constraints.
- Trimmed the comment in <uapi/asm/sigcontext.h> and added a
reference to xstate.rst.
- x86/fpu core:
- Renamed the 32-bit helper to restore_from_ia32_fxstate() and
inlined the remaining native path directly into
fpu__restore_sig().
- Selftests:
- Consolidated the shrunk-frame and insufficient-size test cases.
Chang