death to idle_regs()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/ia64/kernel/smpboot.c

diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 963d2db..6a368cb 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -460,11 +460,6 @@
 	return 0;
 }
 
-struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs)
-{
-	return NULL;
-}
-
 static int __cpuinit
 do_boot_cpu (int sapicid, int cpu, struct task_struct *idle)
 {

arch/x86/include/asm/processor.h

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index ad1fc85..92f48a5 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -178,8 +178,6 @@
 
 extern void cpu_detect(struct cpuinfo_x86 *c);
 
-extern struct pt_regs *idle_regs(struct pt_regs *);
-
 extern void early_cpu_init(void);
 extern void identify_boot_cpu(void);
 extern void identify_secondary_cpu(struct cpuinfo_x86 *);

arch/x86/kernel/cpu/common.c

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 7505f7b1..6a6432c 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1173,15 +1173,6 @@
 DEFINE_PER_CPU_ALIGNED(struct stack_canary, stack_canary);
 #endif
 
-/* Make sure %fs and %gs are initialized properly in idle threads */
-struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs)
-{
-	memset(regs, 0, sizeof(struct pt_regs));
-	regs->fs = __KERNEL_PERCPU;
-	regs->gs = __KERNEL_STACK_CANARY;
-
-	return regs;
-}
 #endif	/* CONFIG_X86_64 */
 
 /*

kernel/fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index fa24a78..0e68b66 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1514,12 +1514,6 @@
 	return ERR_PTR(retval);
 }
 
-noinline struct pt_regs * __cpuinit __attribute__((weak)) idle_regs(struct pt_regs *regs)
-{
-	memset(regs, 0, sizeof(struct pt_regs));
-	return regs;
-}
-
 static inline void init_idle_pids(struct pid_link *links)
 {
 	enum pid_type type;