identify_cpu() is used to identify both the boot CPU and secondary
CPUs, but it performs some actions which only apply to the boot CPU.
Those functions are therefore really __init functions, but because
they're called by identify_cpu(), they must be marked __cpuinit.
This patch splits identify_cpu() into identify_boot_cpu() and
identify_secondary_cpu(), and calls the appropriate init functions
from each. Also, identify_boot_cpu() and all the functions it
dominates are marked __init.
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
---
arch/i386/kernel/cpu/common.c | 25 ++++++++++++++++---------
arch/i386/kernel/cpu/mtrr/main.c | 4 ++--
arch/i386/kernel/smpboot.c | 2 +-
arch/i386/kernel/sysenter.c | 2 +-
include/asm-i386/processor.h | 3 ++-
5 files changed, 22 insertions(+), 14 deletions(-)
===================================================================
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -390,7 +390,7 @@ __setup("serialnumber", x86_serial_nr_se
/*
* This does the hard work of actually picking apart the CPU stuff...
*/
-void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
+static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
{
int i;
@@ -501,15 +501,22 @@ void __cpuinit identify_cpu(struct cpuin
/* Init Machine Check Exception if available. */
mcheck_init(c);
-
- if (c == &boot_cpu_data)
- sysenter_setup();
+}
+
+void __init identify_boot_cpu(void)
+{
+ identify_cpu(&boot_cpu_data);
+ sysenter_setup();
enable_sep_cpu();
-
- if (c == &boot_cpu_data)
- mtrr_bp_init();
- else
- mtrr_ap_init();
+ mtrr_bp_init();
+}
+
+void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)
+{
+ BUG_ON(c == &boot_cpu_data);
+ identify_cpu(c);
+ enable_sep_cpu();
+ mtrr_ap_init();
}
#ifdef CONFIG_X86_HT
===================================================================
--- a/arch/i386/kernel/cpu/mtrr/main.c
+++ b/arch/i386/kernel/cpu/mtrr/main.c
@@ -571,7 +571,7 @@ extern void cyrix_init_mtrr(void);
extern void cyrix_init_mtrr(void);
extern void centaur_init_mtrr(void);
-static void __cpuinit init_ifs(void)
+static void __init init_ifs(void)
{
#ifndef CONFIG_X86_64
amd_init_mtrr();
@@ -639,7 +639,7 @@ static struct sysdev_driver mtrr_sysdev_
* initialized (i.e. before smp_init()).
*
*/
-void __cpuinit mtrr_bp_init(void)
+void __init mtrr_bp_init(void)
{
init_ifs();
===================================================================
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -157,7 +157,7 @@ static void __cpuinit smp_store_cpu_info
*c = boot_cpu_data;
if (id!=0)
- identify_cpu(c);
+ identify_secondary_cpu(c);
/*
* Mask B, Pentium, but not Pentium MMX
*/
===================================================================
--- a/arch/i386/kernel/sysenter.c
+++ b/arch/i386/kernel/sysenter.c
@@ -68,7 +68,7 @@ extern const char vsyscall_sysenter_star
extern const char vsyscall_sysenter_start, vsyscall_sysenter_end;
static struct page *syscall_pages[1];
-int __cpuinit sysenter_setup(void)
+int __init sysenter_setup(void)
{
void *syscall_page = (void *)get_zeroed_page(GFP_ATOMIC);
syscall_pages[0] = virt_to_page(syscall_page);
===================================================================
--- a/include/asm-i386/processor.h
+++ b/include/asm-i386/processor.h
@@ -116,7 +116,8 @@ extern char ignore_fpu_irq;
void __init cpu_detect(struct cpuinfo_x86 *c);
-extern void identify_cpu(struct cpuinfo_x86 *);
+extern void identify_boot_cpu(void);
+extern void identify_secondary_cpu(struct cpuinfo_x86 *);
extern void print_cpu_info(struct cpuinfo_x86 *);
extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
extern unsigned short num_cache_leaves;
--
-
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