linux-kernel - [PATCH 187/208] x86/fpu: Remove run-once init quirks

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Date:	Tue,  5 May 2015 19:58:11 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	linux-kernel@...r.kernel.org
Cc:	Andy Lutomirski <luto@...capital.net>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 187/208] x86/fpu: Remove run-once init quirks

Remove various boot quirks that came from the old code.

The new code is cleanly split up into per-system and per-cpu
init sequences, and system init functions are only called once.

Remove the run-once quirks.

Cc: Andy Lutomirski <luto@...capital.net>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/kernel/fpu/init.c   |  6 ------
 arch/x86/kernel/fpu/xstate.c | 11 -----------
 2 files changed, 17 deletions(-)

diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index 72219ce2385a..7b6265df6082 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -143,12 +143,6 @@ EXPORT_SYMBOL_GPL(xstate_size);
  */
 static void fpu__init_system_xstate_size_legacy(void)
 {
-	static bool on_boot_cpu = 1;
-
-	if (!on_boot_cpu)
-		return;
-	on_boot_cpu = 0;
-
 	/*
 	 * Note that xstate_size might be overwriten later during
 	 * fpu__init_system_xstate().
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index 59bd35a57afc..8285d4b40763 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -658,12 +658,6 @@ void setup_xstate_comp(void)
  */
 static void setup_init_fpu_buf(void)
 {
-	static int on_boot_cpu = 1;
-
-	if (!on_boot_cpu)
-		return;
-	on_boot_cpu = 0;
-
 	if (!cpu_has_xsave)
 		return;
 
@@ -719,11 +713,6 @@ static void __init init_xstate_size(void)
 void fpu__init_system_xstate(void)
 {
 	unsigned int eax, ebx, ecx, edx;
-	static bool on_boot_cpu = 1;
-
-	if (!on_boot_cpu)
-		return;
-	on_boot_cpu = 0;
 
 	if (!cpu_has_xsave) {
 		pr_info("x86/fpu: Legacy x87 FPU detected.\n");
-- 
2.1.0

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