[PATCH] kill include/linux/platform.h, default_idle() cleanup

include/linux/platform.h contained nothing that was actually used except
the default_idle() prototype, and is therefore removed by this patch.

This patch does the following with the platform specific default_idle()
functions on different architectures:
- remove the unused function:
  - parisc
  - sparc64
- make the needlessly global function static:
  - arm
  - h8300
  - m68k
  - m68knommu
  - s390
  - v850
  - x86_64
- add a prototype in asm/system.h:
  - cris
  - i386
  - ia64

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Patrick Mochel <mochel@digitalimplant.org>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

16 files changed, 14 insertions, 62 deletions

diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index 4ab3e87..123451c 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -116,6 +116,7 @@
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
 #include <asm/irq.h>
+#include <asm/system.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/fs_struct.h>
@@ -194,8 +195,6 @@ EXPORT_SYMBOL(enable_hlt);
  */
 void (*pm_idle)(void);
 
-extern void default_idle(void);
-
 /*
  * The idle thread. There's no useful work to be
  * done, so just try to conserve power and have a
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index dd344f1..16ccddc 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -54,7 +54,7 @@ asmlinkage void ret_from_fork(void);
  * The idle loop on an H8/300..
  */
 #if !defined(CONFIG_H8300H_SIM) && !defined(CONFIG_H8S_SIM)
-void default_idle(void)
+static void default_idle(void)
 {
 	local_irq_disable();
 	if (!need_resched()) {
@@ -65,7 +65,7 @@ void default_idle(void)
 		local_irq_enable();
 }
 #else
-void default_idle(void)
+static void default_idle(void)
 {
 	cpu_relax();
 }
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index 05312a8..da30a37 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -824,8 +824,6 @@ static void apm_do_busy(void)
 
 static void (*original_pm_idle)(void);
 
-extern void default_idle(void);
-
 /**
  * apm_cpu_idle		-	cpu idling for APM capable Linux
  *
diff --git a/arch/i386/mach-visws/reboot.c b/arch/i386/mach-visws/reboot.c
index 5d73e04..99332ab 100644
--- a/arch/i386/mach-visws/reboot.c
+++ b/arch/i386/mach-visws/reboot.c
@@ -1,7 +1,6 @@
 #include <linux/module.h>
 #include <linux/smp.h>
 #include <linux/delay.h>
-#include <linux/platform.h>
 
 #include <asm/io.h>
 #include "piix4.h"
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 3258e09..958c150 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -41,7 +41,6 @@
 #include <linux/serial_core.h>
 #include <linux/efi.h>
 #include <linux/initrd.h>
-#include <linux/platform.h>
 #include <linux/pm.h>
 #include <linux/cpufreq.h>
 
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 2d8ad07..33648ef 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -77,7 +77,7 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 /*
  * The idle loop on an m68k..
  */
-void default_idle(void)
+static void default_idle(void)
 {
 	if (!need_resched())
 #if defined(MACH_ATARI_ONLY) && !defined(CONFIG_HADES)
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c
index 63c117d..f861755 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68knommu/kernel/process.c
@@ -51,7 +51,7 @@ EXPORT_SYMBOL(pm_power_off);
 /*
  * The idle loop on an m68knommu..
  */
-void default_idle(void)
+static void default_idle(void)
 {
 	local_irq_disable();
  	while (!need_resched()) {
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index e8dea41..0b485ef 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -54,11 +54,6 @@
 #include <asm/uaccess.h>
 #include <asm/unwind.h>
 
-void default_idle(void)
-{
-	barrier();
-}
-
 /*
  * The idle thread. There's no useful work to be
  * done, so just try to conserve power and have a
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index da6fbae..99182a4 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -103,7 +103,7 @@ extern void s390_handle_mcck(void);
 /*
  * The idle loop on a S390...
  */
-void default_idle(void)
+static void default_idle(void)
 {
 	int cpu, rc;
 
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 9fd1723..22dc9c2 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -19,7 +19,6 @@
 #include <linux/slab.h>
 #include <linux/pm.h>
 #include <linux/ptrace.h>
-#include <linux/platform.h>
 #include <linux/kallsyms.h>
 #include <linux/kexec.h>
 
diff --git a/arch/v850/kernel/process.c b/arch/v850/kernel/process.c
index 621111d..57218c7 100644
--- a/arch/v850/kernel/process.c
+++ b/arch/v850/kernel/process.c
@@ -37,7 +37,7 @@ extern void ret_from_fork (void);
 
 
 /* The idle loop.  */
-void default_idle (void)
+static void default_idle (void)
 {
 	while (! need_resched ())
 		asm ("halt; nop; nop; nop; nop; nop" ::: "cc");
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c
index 22a05de..80a8f30 100644
--- a/arch/x86_64/kernel/process.c
+++ b/arch/x86_64/kernel/process.c
@@ -114,7 +114,7 @@ void exit_idle(void)
  * We use this if we don't have any better
  * idle routine..
  */
-void default_idle(void)
+static void default_idle(void)
 {
 	local_irq_enable();
 
diff --git a/include/asm-cris/system.h b/include/asm-cris/system.h
index d486701..1d63c2a 100644
--- a/include/asm-cris/system.h
+++ b/include/asm-cris/system.h
@@ -71,4 +71,6 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 
 #define arch_align_stack(x) (x)
 
+void default_idle(void);
+
 #endif
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
index d0d8d74..19cc79c 100644
--- a/include/asm-i386/system.h
+++ b/include/asm-i386/system.h
@@ -499,4 +499,6 @@ static inline void sched_cacheflush(void)
 extern unsigned long arch_align_stack(unsigned long sp);
 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
 
+void default_idle(void);
+
 #endif
diff --git a/include/asm-ia64/system.h b/include/asm-ia64/system.h
index cd4233d..2f36205 100644
--- a/include/asm-ia64/system.h
+++ b/include/asm-ia64/system.h
@@ -265,6 +265,8 @@ void sched_cacheflush(void);
 
 #define arch_align_stack(x) (x)
 
+void default_idle(void);
+
 #endif /* __KERNEL__ */
 
 #endif /* __ASSEMBLY__ */
diff --git a/include/linux/platform.h b/include/linux/platform.h
deleted file mode 100644
index 3c33084..0000000
--- a/include/linux/platform.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * include/linux/platform.h - platform driver definitions
- *
- * Because of the prolific consumerism of the average American,
- * and the dominant marketing budgets of PC OEMs, we have been
- * blessed with frequent updates of the PC architecture. 
- *
- * While most of these calls are singular per architecture, they 
- * require an extra layer of abstraction on the x86 so the right
- * subsystem gets the right call. 
- *
- * Basically, this consolidates the power off and reboot callbacks 
- * into one structure, as well as adding power management hooks.
- *
- * When adding a platform driver, please make sure all callbacks are 
- * filled. There are defaults defined below that do nothing; use those
- * if you do not support that callback.
- */ 
-
-#ifndef _PLATFORM_H_
-#define _PLATFORM_H_
-#ifdef __KERNEL__
-
-#include <linux/types.h>
-
-struct platform_t {
-	char	* name;
-	u32	suspend_states;
-	void	(*reboot)(char * cmd);
-	void	(*halt)(void);
-	void	(*power_off)(void);
-	int	(*suspend)(int state, int flags);
-	void	(*idle)(void);
-};
-
-extern struct platform_t * platform;
-extern void default_reboot(char * cmd);
-extern void default_halt(void);
-extern int default_suspend(int state, int flags);
-extern void default_idle(void);
-
-#endif /* __KERNEL__ */
-#endif /* _PLATFORM_H */