From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 23 Jun 2021 12:02:24 +0000 (+0200)
Subject: x86/fpu: Mark init_fpstate __ro_after_init
X-Git-Tag: v5.14-rc1~52^2~9
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bf68a7d98922e1665019b8bf0c4791500837c857;p=thirdparty%2Fkernel%2Flinux.git

x86/fpu: Mark init_fpstate __ro_after_init

Nothing has to write into that state after init.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210623121456.992342060@linutronix.de
---

diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
index 5295cbafc92ed..7ada7bd03a327 100644
--- a/arch/x86/kernel/fpu/core.c
+++ b/arch/x86/kernel/fpu/core.c
@@ -23,7 +23,7 @@
  * Represents the initial FPU state. It's mostly (but not completely) zeroes,
  * depending on the FPU hardware format:
  */
-union fpregs_state init_fpstate __read_mostly;
+union fpregs_state init_fpstate __ro_after_init;
 
 /*
  * Track whether the kernel is using the FPU state