linux-kernel - [tip:x86/asm] x86: Remove unused patch_espfix

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Message-ID: <tip-fde0312d01b60a3fd5dc56e69a9613defbbc7097@git.kernel.org>
Date:	Mon, 20 Jul 2009 12:01:29 GMT
From:	tip-bot for Akinobu Mita <akinobu.mita@...il.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	akinobu.mita@...il.com, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:x86/asm] x86: Remove unused patch_espfix_desc()

Commit-ID:  fde0312d01b60a3fd5dc56e69a9613defbbc7097
Gitweb:     http://git.kernel.org/tip/fde0312d01b60a3fd5dc56e69a9613defbbc7097
Author:     Akinobu Mita <akinobu.mita@...il.com>
AuthorDate: Sun, 19 Jul 2009 00:09:56 +0900
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Sun, 19 Jul 2009 18:27:52 +0200

x86: Remove unused patch_espfix_desc()

patch_espfix_desc() is not used after commit
dc4c2a0aed3b09f6e255bd5c3faa50fe6e0b2ded

Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
LKML-Reference: <20090718150955.GB11294@...alhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 arch/x86/include/asm/traps.h |    4 +---
 arch/x86/kernel/traps.c      |   21 ---------------------
 2 files changed, 1 insertions(+), 24 deletions(-)

diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index bfd74c0..4da91ad 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -81,9 +81,7 @@ extern int panic_on_unrecovered_nmi;
 
 void math_error(void __user *);
 void math_emulate(struct math_emu_info *);
-#ifdef CONFIG_X86_32
-unsigned long patch_espfix_desc(unsigned long, unsigned long);
-#else
+#ifndef CONFIG_X86_32
 asmlinkage void smp_thermal_interrupt(void);
 asmlinkage void mce_threshold_interrupt(void);
 #endif
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 5204332..2367941 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -786,27 +786,6 @@ do_spurious_interrupt_bug(struct pt_regs *regs, long error_code)
 #endif
 }
 
-#ifdef CONFIG_X86_32
-unsigned long patch_espfix_desc(unsigned long uesp, unsigned long kesp)
-{
-	struct desc_struct *gdt = get_cpu_gdt_table(smp_processor_id());
-	unsigned long base = (kesp - uesp) & -THREAD_SIZE;
-	unsigned long new_kesp = kesp - base;
-	unsigned long lim_pages = (new_kesp | (THREAD_SIZE - 1)) >> PAGE_SHIFT;
-	__u64 desc = *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS];
-
-	/* Set up base for espfix segment */
-	desc &= 0x00f0ff0000000000ULL;
-	desc |=	((((__u64)base) << 16) & 0x000000ffffff0000ULL) |
-		((((__u64)base) << 32) & 0xff00000000000000ULL) |
-		((((__u64)lim_pages) << 32) & 0x000f000000000000ULL) |
-		(lim_pages & 0xffff);
-	*(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS] = desc;
-
-	return new_kesp;
-}
-#endif
-
 asmlinkage void __attribute__((weak)) smp_thermal_interrupt(void)
 {
 }
--
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