linux-kernel - [PATCH tip/x86/fpu 2/6] x86/fpu: kill x86_init

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Message-ID: <20250503143837.GA8985@redhat.com>
Date: Sat, 3 May 2025 16:38:37 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Andy Lutomirski <luto@...capital.net>,
	Dave Hansen <dave@...1.net>, Brian Gerst <brgerst@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Borislav Petkov <bp@...en8.de>, "H . Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Chang S . Bae" <chang.seok.bae@...el.com>
Subject: [PATCH tip/x86/fpu 2/6] x86/fpu: kill x86_init_fpu

It is not actually used after the commit 55bc30f2e34d ("x86/fpu: Remove
the thread::fpu pointer").

Signed-off-by: Oleg Nesterov <oleg@...hat.com>
---
 arch/x86/kernel/fpu/init.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index 2d9b5e677559..6bb3e35c40e2 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -71,13 +71,9 @@ static bool __init fpu__probe_without_cpuid(void)
 	return fsw == 0 && (fcw & 0x103f) == 0x003f;
 }
 
-static struct fpu x86_init_fpu __attribute__ ((aligned (64))) __read_mostly;
-
 static void __init fpu__init_system_early_generic(void)
 {
-	fpstate_reset(&x86_init_fpu);
 	set_thread_flag(TIF_NEED_FPU_LOAD);
-	x86_init_fpu.last_cpu = -1;
 
 	if (!boot_cpu_has(X86_FEATURE_CPUID) &&
 	    !test_bit(X86_FEATURE_FPU, (unsigned long *)cpu_caps_cleared)) {
-- 
2.25.1.362.g51ebf55