This is a note to let you know that I've just added the patch titled
x86, espfix: Move espfix definitions into a separate header file
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-espfix-move-espfix-definitions-into-a-separate-header-file.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From e1fe9ed8d2a4937510d0d60e20705035c2609aea Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <[email protected]>
Date: Thu, 1 May 2014 14:12:23 -0700
Subject: x86, espfix: Move espfix definitions into a separate header file
From: "H. Peter Anvin" <[email protected]>
commit e1fe9ed8d2a4937510d0d60e20705035c2609aea upstream.
Sparse warns that the percpu variables aren't declared before they are
defined. Rather than hacking around it, move espfix definitions into
a proper header file.
Reported-by: Fengguang Wu <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/include/asm/espfix.h | 16 ++++++++++++++++
arch/x86/include/asm/setup.h | 5 ++---
arch/x86/kernel/espfix_64.c | 1 +
3 files changed, 19 insertions(+), 3 deletions(-)
--- /dev/null
+++ b/arch/x86/include/asm/espfix.h
@@ -0,0 +1,16 @@
+#ifdef _ASM_X86_ESPFIX_H
+#define _ASM_X86_ESPFIX_H
+
+#ifdef CONFIG_X86_64
+
+#include <asm/percpu.h>
+
+DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack);
+DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr);
+
+extern void init_espfix_bsp(void);
+extern void init_espfix_ap(void);
+
+#endif /* CONFIG_X86_64 */
+
+#endif /* _ASM_X86_ESPFIX_H */
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -63,11 +63,10 @@ extern void x86_ce4100_early_setup(void)
static inline void x86_ce4100_early_setup(void) { }
#endif
-extern void init_espfix_bsp(void);
-extern void init_espfix_ap(void);
-
#ifndef _SETUP
+#include <asm/espfix.h>
+
/*
* This is set up by the setup-routine at boot-time
*/
--- a/arch/x86/kernel/espfix_64.c
+++ b/arch/x86/kernel/espfix_64.c
@@ -40,6 +40,7 @@
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/setup.h>
+#include <asm/espfix.h>
/*
* Note: we only need 6*8 = 48 bytes for the espfix stack, but round
Patches currently in stable-queue which might be from [email protected] are
queue-3.14/x86-espfix-move-espfix-definitions-into-a-separate-header-file.patch
queue-3.14/x86-espfix-make-it-possible-to-disable-16-bit-support.patch
queue-3.14/x86-espfix-fix-broken-header-guard.patch
queue-3.14/x86-64-espfix-don-t-leak-bits-31-16-of-esp-returning-to-16-bit-stack.patch
queue-3.14/x86_64-entry-xen-do-not-invoke-espfix64-on-xen.patch
queue-3.14/x86-espfix-make-espfix64-a-kconfig-option-fix-uml.patch
--
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