18 files changed, 88 insertions, 866 deletions

diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index d2936d0600b..d432fb20358 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -103,9 +103,6 @@ obj-$(CONFIG_PCI_MSI)        += pci_msi.o
 
 obj-$(CONFIG_COMPAT)         += sys32.o sys_sparc32.o signal32.o
 
-# sparc64 cpufreq
-obj-$(CONFIG_US3_FREQ)  += us3_cpufreq.o
-obj-$(CONFIG_US2E_FREQ) += us2e_cpufreq.o
 obj-$(CONFIG_US3_MC)    += chmc.o
 
 obj-$(CONFIG_KPROBES)   += kprobes.o
diff --git a/arch/sparc/kernel/hvtramp.S b/arch/sparc/kernel/hvtramp.S
index 9365432904d..605c960b2fa 100644
--- a/arch/sparc/kernel/hvtramp.S
+++ b/arch/sparc/kernel/hvtramp.S
@@ -128,8 +128,7 @@ hv_cpu_startup:
 
 	call		smp_callin
 	 nop
-	call		cpu_idle
-	 mov		0, %o0
+
 	call		cpu_panic
 	 nop
 
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 0f094db918c..2096468de9b 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -693,7 +693,7 @@ static int sparc_io_proc_show(struct seq_file *m, void *v)
 
 static int sparc_io_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, sparc_io_proc_show, PDE(inode)->data);
+	return single_open(file, sparc_io_proc_show, PDE_DATA(inode));
 }
 
 static const struct file_operations sparc_io_proc_fops = {
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 87f60ee6543..7c0231dabe4 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -213,6 +213,7 @@ unsigned int leon_build_device_irq(unsigned int real_irq,
 {
 	unsigned int irq;
 	unsigned long mask;
+	struct irq_desc *desc;
 
 	irq = 0;
 	mask = leon_get_irqmask(real_irq);
@@ -226,9 +227,12 @@ unsigned int leon_build_device_irq(unsigned int real_irq,
 	if (do_ack)
 		mask |= LEON_DO_ACK_HW;
 
-	irq_set_chip_and_handler_name(irq, &leon_irq,
-				      flow_handler, name);
-	irq_set_chip_data(irq, (void *)mask);
+	desc = irq_to_desc(irq);
+	if (!desc || !desc->handle_irq || desc->handle_irq == handle_bad_irq) {
+		irq_set_chip_and_handler_name(irq, &leon_irq,
+					      flow_handler, name);
+		irq_set_chip_data(irq, (void *)mask);
+	}
 
 out:
 	return irq;
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 62eede13831..fdd819dfdac 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -64,23 +64,12 @@ extern void fpsave(unsigned long *, unsigned long *, void *, unsigned long *);
 struct task_struct *last_task_used_math = NULL;
 struct thread_info *current_set[NR_CPUS];
 
-/*
- * the idle loop on a Sparc... ;)
- */
-void cpu_idle(void)
+/* Idle loop support. */
+void arch_cpu_idle(void)
 {
-	set_thread_flag(TIF_POLLING_NRFLAG);
-
-	/* endless idle loop with no priority at all */
-	for (;;) {
-		while (!need_resched()) {
-			if (sparc_idle)
-				(*sparc_idle)();
-			else
-				cpu_relax();
-		}
-		schedule_preempt_disabled();
-	}
+	if (sparc_idle)
+		(*sparc_idle)();
+	local_irq_enable();
 }
 
 /* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */
@@ -123,6 +112,8 @@ void show_regs(struct pt_regs *r)
 {
 	struct reg_window32 *rw = (struct reg_window32 *) r->u_regs[14];
 
+	show_regs_print_info(KERN_DEFAULT);
+
         printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx    %s\n",
 	       r->psr, r->pc, r->npc, r->y, print_tainted());
 	printk("PC: <%pS>\n", (void *) r->pc);
@@ -153,11 +144,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 	struct reg_window32 *rw;
 	int count = 0;
 
-	if (tsk != NULL)
-		task_base = (unsigned long) task_stack_page(tsk);
-	else
-		task_base = (unsigned long) current_thread_info();
+	if (!tsk)
+		tsk = current;
 
+	if (tsk == current && !_ksp)
+		__asm__ __volatile__("mov	%%fp, %0" : "=r" (_ksp));
+
+	task_base = (unsigned long) task_stack_page(tsk);
 	fp = (unsigned long) _ksp;
 	do {
 		/* Bogus frame pointer? */
@@ -173,17 +166,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 	printk("\n");
 }
 
-void dump_stack(void)
-{
-	unsigned long *ksp;
-
-	__asm__ __volatile__("mov	%%fp, %0"
-			     : "=r" (ksp));
-	show_stack(current, ksp);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
 /*
  * Note: sparc64 has a pretty intricated thread_saved_pc, check it out.
  */
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index cdb80b2adbe..baebab21549 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -52,20 +52,17 @@
 
 #include "kstack.h"
 
-static void sparc64_yield(int cpu)
+/* Idle loop support on sparc64. */
+void arch_cpu_idle(void)
 {
 	if (tlb_type != hypervisor) {
 		touch_nmi_watchdog();
-		return;
-	}
-
-	clear_thread_flag(TIF_POLLING_NRFLAG);
-	smp_mb__after_clear_bit();
-
-	while (!need_resched() && !cpu_is_offline(cpu)) {
+	} else {
 		unsigned long pstate;
 
-		/* Disable interrupts. */
+                /* The sun4v sleeping code requires that we have PSTATE.IE cleared over
+                 * the cpu sleep hypervisor call.
+                 */
 		__asm__ __volatile__(
 			"rdpr %%pstate, %0\n\t"
 			"andn %0, %1, %0\n\t"
@@ -73,7 +70,7 @@ static void sparc64_yield(int cpu)
 			: "=&r" (pstate)
 			: "i" (PSTATE_IE));
 
-		if (!need_resched() && !cpu_is_offline(cpu))
+		if (!need_resched() && !cpu_is_offline(smp_processor_id()))
 			sun4v_cpu_yield();
 
 		/* Re-enable interrupts. */
@@ -84,36 +81,16 @@ static void sparc64_yield(int cpu)
 			: "=&r" (pstate)
 			: "i" (PSTATE_IE));
 	}
-
-	set_thread_flag(TIF_POLLING_NRFLAG);
+	local_irq_enable();
 }
 
-/* The idle loop on sparc64. */
-void cpu_idle(void)
-{
-	int cpu = smp_processor_id();
-
-	set_thread_flag(TIF_POLLING_NRFLAG);
-
-	while(1) {
-		tick_nohz_idle_enter();
-		rcu_idle_enter();
-
-		while (!need_resched() && !cpu_is_offline(cpu))
-			sparc64_yield(cpu);
-
-		rcu_idle_exit();
-		tick_nohz_idle_exit();
-
 #ifdef CONFIG_HOTPLUG_CPU
-		if (cpu_is_offline(cpu)) {
-			sched_preempt_enable_no_resched();
-			cpu_play_dead();
-		}
-#endif
-		schedule_preempt_disabled();
-	}
+void arch_cpu_idle_dead()
+{
+	sched_preempt_enable_no_resched();
+	cpu_play_dead();
 }
+#endif
 
 #ifdef CONFIG_COMPAT
 static void show_regwindow32(struct pt_regs *regs)
@@ -186,6 +163,8 @@ static void show_regwindow(struct pt_regs *regs)
 
 void show_regs(struct pt_regs *regs)
 {
+	show_regs_print_info(KERN_DEFAULT);
+
 	printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x    %s\n", regs->tstate,
 	       regs->tpc, regs->tnpc, regs->y, print_tainted());
 	printk("TPC: <%pS>\n", (void *) regs->tpc);
@@ -315,7 +294,7 @@ static void sysrq_handle_globreg(int key)
 
 static struct sysrq_key_op sparc_globalreg_op = {
 	.handler	= sysrq_handle_globreg,
-	.help_msg	= "global-regs(Y)",
+	.help_msg	= "global-regs(y)",
 	.action_msg	= "Show Global CPU Regs",
 };
 
@@ -385,7 +364,7 @@ static void sysrq_handle_globpmu(int key)
 
 static struct sysrq_key_op sparc_globalpmu_op = {
 	.handler	= sysrq_handle_globpmu,
-	.help_msg	= "global-pmu(X)",
+	.help_msg	= "global-pmu(x)",
 	.action_msg	= "Show Global PMU Regs",
 };
 
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index 9e7e6d71836..e3f2b81c23f 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -369,7 +369,7 @@ void __cpuinit sparc_start_secondary(void *arg)
 	local_irq_enable();
 
 	wmb();
-	cpu_idle();
+	cpu_startup_entry(CPUHP_ONLINE);
 
 	/* We should never reach here! */
 	BUG();
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 537eb66abd0..77539eda928 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -127,6 +127,8 @@ void __cpuinit smp_callin(void)
 
 	/* idle thread is expected to have preempt disabled */
 	preempt_disable();
+
+	cpu_startup_entry(CPUHP_ONLINE);
 }
 
 void cpu_panic(void)
@@ -849,7 +851,7 @@ void smp_tsb_sync(struct mm_struct *mm)
 }
 
 extern unsigned long xcall_flush_tlb_mm;
-extern unsigned long xcall_flush_tlb_pending;
+extern unsigned long xcall_flush_tlb_page;
 extern unsigned long xcall_flush_tlb_kernel_range;
 extern unsigned long xcall_fetch_glob_regs;
 extern unsigned long xcall_fetch_glob_pmu;
@@ -1074,23 +1076,56 @@ local_flush_and_out:
 	put_cpu();
 }
 
+struct tlb_pending_info {
+	unsigned long ctx;
+	unsigned long nr;
+	unsigned long *vaddrs;
+};
+
+static void tlb_pending_func(void *info)
+{
+	struct tlb_pending_info *t = info;
+
+	__flush_tlb_pending(t->ctx, t->nr, t->vaddrs);
+}
+
 void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long *vaddrs)
 {
 	u32 ctx = CTX_HWBITS(mm->context);
+	struct tlb_pending_info info;
 	int cpu = get_cpu();
 
+	info.ctx = ctx;
+	info.nr = nr;
+	info.vaddrs = vaddrs;
+
 	if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
 		cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
 	else
-		smp_cross_call_masked(&xcall_flush_tlb_pending,
-				      ctx, nr, (unsigned long) vaddrs,
-				      mm_cpumask(mm));
+		smp_call_function_many(mm_cpumask(mm), tlb_pending_func,
+				       &info, 1);
 
 	__flush_tlb_pending(ctx, nr, vaddrs);
 
 	put_cpu();
 }
 
+void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
+{
+	unsigned long context = CTX_HWBITS(mm->context);
+	int cpu = get_cpu();
+
+	if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
+		cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
+	else
+		smp_cross_call_masked(&xcall_flush_tlb_page,
+				      context, vaddr, 0,
+				      mm_cpumask(mm));
+	__flush_tlb_page(context, vaddr);
+
+	put_cpu();
+}
+
 void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end)
 {
 	start &= PAGE_MASK;
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index e490ac9327c..f8933be3ca8 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/kernel_stat.h>
+#include <linux/slab.h>
 #include <linux/seq_file.h>
 
 #include <asm/timer.h>
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index 240a3cecc11..2e680b5245c 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -36,7 +36,6 @@ STUB:	sra	REG1, 0, REG1; \
 	jmpl	%g1 + %lo(SYSCALL), %g0; \
 	sra	REG3, 0, REG3
 
-SIGN1(sys32_getrusage, compat_sys_getrusage, %o0)
 SIGN1(sys32_readahead, compat_sys_readahead, %o0)
 SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
 SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
@@ -46,12 +45,9 @@ SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
 SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
 SIGN1(sys32_select, compat_sys_select, %o0)
 SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
-SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1)
 SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
 SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
 SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
-SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5)
-SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0)
 
 	.globl		sys32_mmap2
 sys32_mmap2:
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index f38f2280fad..3d0ddbc005f 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -49,71 +49,6 @@
 #include <asm/mmu_context.h>
 #include <asm/compat_signal.h>
 
-#ifdef CONFIG_SYSVIPC                                                        
-asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
-{
-	int version;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMTIMEDOP:
-		if (fifth)
-			/* sign extend semid */
-			return compat_sys_semtimedop((int)first,
-						     compat_ptr(ptr), second,
-						     compat_ptr(fifth));
-		/* else fall through for normal semop() */
-	case SEMOP:
-		/* struct sembuf is the same on 32 and 64bit :)) */
-		/* sign extend semid */
-		return sys_semtimedop((int)first, compat_ptr(ptr), second,
-				      NULL);
-	case SEMGET:
-		/* sign extend key, nsems */
-		return sys_semget((int)first, (int)second, third);
-	case SEMCTL:
-		/* sign extend semid, semnum */
-		return compat_sys_semctl((int)first, (int)second, third,
-					 compat_ptr(ptr));
-
-	case MSGSND:
-		/* sign extend msqid */
-		return compat_sys_msgsnd((int)first, (int)second, third,
-					 compat_ptr(ptr));
-	case MSGRCV:
-		/* sign extend msqid, msgtyp */
-		return compat_sys_msgrcv((int)first, second, (int)fifth,
-					 third, version, compat_ptr(ptr));
-	case MSGGET:
-		/* sign extend key */
-		return sys_msgget((int)first, second);
-	case MSGCTL:
-		/* sign extend msqid */
-		return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
-
-	case SHMAT:
-		/* sign extend shmid */
-		return compat_sys_shmat((int)first, second, third, version,
-					compat_ptr(ptr));
-	case SHMDT:
-		return sys_shmdt(compat_ptr(ptr));
-	case SHMGET:
-		/* sign extend key_t */
-		return sys_shmget((int)first, second, third);
-	case SHMCTL:
-		/* sign extend shmid */
-		return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
-
-	default:
-		return -ENOSYS;
-	}
-
-	return -ENOSYS;
-}
-#endif
-
 asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
 {
 	if ((int)high < 0)
@@ -303,15 +238,7 @@ long compat_sys_fadvise64_64(int fd,
 				advice);
 }
 
-long sys32_lookup_dcookie(unsigned long cookie_high,
-			  unsigned long cookie_low,
-			  char __user *buf, size_t len)
-{
-	return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
-				  buf, len);
-}
-
-long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags)
+long sys32_sync_file_range(unsigned int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, unsigned int flags)
 {
 	return sys_sync_file_range(fd,
 				   (off_high << 32) | off_low,
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 708bc29d36a..2daaaa6eda2 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -353,7 +353,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second
 		case SEMCTL: {
 			err = sys_semctl(first, second,
 					 (int)third | IPC_64,
-					 (union semun) ptr);
+					 (unsigned long) ptr);
 			goto out;
 		}
 		default:
@@ -470,10 +470,6 @@ SYSCALL_DEFINE2(64_munmap, unsigned long, addr, size_t, len)
 
 	return vm_munmap(addr, len);
 }
-
-extern unsigned long do_mremap(unsigned long addr,
-	unsigned long old_len, unsigned long new_len,
-	unsigned long flags, unsigned long new_addr);
                 
 SYSCALL_DEFINE5(64_mremap, unsigned long, addr,	unsigned long, old_len,
 		unsigned long, new_len, unsigned long, flags,
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 088134834da..8fd93208021 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -23,9 +23,9 @@ sys_call_table32:
 /*10*/  .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys_mknod
 /*15*/	.word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, compat_sys_lseek
 /*20*/	.word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
-/*25*/	.word sys32_vmsplice, compat_sys_ptrace, sys_alarm, compat_sys_sigaltstack, sys_pause
+/*25*/	.word compat_sys_vmsplice, compat_sys_ptrace, sys_alarm, compat_sys_sigaltstack, sys_pause
 /*30*/	.word compat_sys_utime, sys_lchown, sys_fchown, sys_access, sys_nice
-	.word sys_chown, sys_sync, sys_kill, compat_sys_newstat, sys32_sendfile
+	.word sys_chown, sys_sync, sys_kill, compat_sys_newstat, compat_sys_sendfile
 /*40*/	.word compat_sys_newlstat, sys_dup, sys_sparc_pipe, compat_sys_times, sys_getuid
 	.word sys_umount, sys_setgid16, sys_getgid16, sys_signal, sys_geteuid16
 /*50*/	.word sys_getegid16, sys_acct, sys_nis_syscall, sys_getgid, compat_sys_ioctl
@@ -41,7 +41,7 @@ sys_call_table32:
 /*100*/ .word sys_getpriority, sys32_rt_sigreturn, compat_sys_rt_sigaction, compat_sys_rt_sigprocmask, compat_sys_rt_sigpending
 	.word compat_sys_rt_sigtimedwait, compat_sys_rt_sigqueueinfo, compat_sys_rt_sigsuspend, sys_setresuid, sys_getresuid
 /*110*/	.word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall
-	.word sys_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd
+	.word sys_getgroups, compat_sys_gettimeofday, compat_sys_getrusage, sys_nis_syscall, sys_getcwd
 /*120*/	.word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod
 	.word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, compat_sys_truncate
 /*130*/	.word compat_sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall
@@ -59,7 +59,7 @@ sys_call_table32:
 /*190*/	.word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
 	.word sys_epoll_wait, sys_ioprio_set, sys_getppid, compat_sys_sparc_sigaction, sys_sgetmask
 /*200*/	.word sys_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
-	.word sys32_readahead, sys32_socketcall, sys_syslog, sys32_lookup_dcookie, sys32_fadvise64
+	.word sys32_readahead, sys32_socketcall, sys_syslog, compat_sys_lookup_dcookie, sys32_fadvise64
 /*210*/	.word sys32_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, compat_sys_sysinfo
 	.word compat_sys_ipc, sys32_sigreturn, sys_clone, sys_ioprio_get, compat_sys_adjtimex
 /*220*/	.word compat_sys_sigprocmask, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
diff --git a/arch/sparc/kernel/trampoline_64.S b/arch/sparc/kernel/trampoline_64.S
index da1b781b5e6..2e973a26fbd 100644
--- a/arch/sparc/kernel/trampoline_64.S
+++ b/arch/sparc/kernel/trampoline_64.S
@@ -407,8 +407,7 @@ after_lock_tlb:
 
 	call		smp_callin
 	 nop
-	call		cpu_idle
-	 mov		0, %o0
+
 	call		cpu_panic
 	 nop
 1:	b,a,pt		%xcc, 1b
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 8d38ca97aa2..b3f833ab90e 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2350,13 +2350,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 	} while (++count < 16);
 }
 
-void dump_stack(void)
-{
-	show_stack(current, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
 static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
 {
 	unsigned long fp = rw->ins[6];
diff --git a/arch/sparc/kernel/us2e_cpufreq.c b/arch/sparc/kernel/us2e_cpufreq.c
deleted file mode 100644
index 489fc15f319..00000000000
--- a/arch/sparc/kernel/us2e_cpufreq.c
+++ /dev/null
@@ -1,413 +0,0 @@
-/* us2e_cpufreq.c: UltraSPARC-IIe cpu frequency support
- *
- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
- *
- * Many thanks to Dominik Brodowski for fixing up the cpufreq
- * infrastructure in order to make this driver easier to implement.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/cpufreq.h>
-#include <linux/threads.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-
-#include <asm/asi.h>
-#include <asm/timer.h>
-
-static struct cpufreq_driver *cpufreq_us2e_driver;
-
-struct us2e_freq_percpu_info {
-	struct cpufreq_frequency_table table[6];
-};
-
-/* Indexed by cpu number. */
-static struct us2e_freq_percpu_info *us2e_freq_table;
-
-#define HBIRD_MEM_CNTL0_ADDR	0x1fe0000f010UL
-#define HBIRD_ESTAR_MODE_ADDR	0x1fe0000f080UL
-
-/* UltraSPARC-IIe has five dividers: 1, 2, 4, 6, and 8.  These are controlled
- * in the ESTAR mode control register.
- */
-#define ESTAR_MODE_DIV_1	0x0000000000000000UL
-#define ESTAR_MODE_DIV_2	0x0000000000000001UL
-#define ESTAR_MODE_DIV_4	0x0000000000000003UL
-#define ESTAR_MODE_DIV_6	0x0000000000000002UL
-#define ESTAR_MODE_DIV_8	0x0000000000000004UL
-#define ESTAR_MODE_DIV_MASK	0x0000000000000007UL
-
-#define MCTRL0_SREFRESH_ENAB	0x0000000000010000UL
-#define MCTRL0_REFR_COUNT_MASK	0x0000000000007f00UL
-#define MCTRL0_REFR_COUNT_SHIFT	8
-#define MCTRL0_REFR_INTERVAL	7800
-#define MCTRL0_REFR_CLKS_P_CNT	64
-
-static unsigned long read_hbreg(unsigned long addr)
-{
-	unsigned long ret;
-
-	__asm__ __volatile__("ldxa	[%1] %2, %0"
-			     : "=&r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
-	return ret;
-}
-
-static void write_hbreg(unsigned long addr, unsigned long val)
-{
-	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
-			     "membar	#Sync"
-			     : /* no outputs */
-			     : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
-			     : "memory");
-	if (addr == HBIRD_ESTAR_MODE_ADDR) {
-		/* Need to wait 16 clock cycles for the PLL to lock.  */
-		udelay(1);
-	}
-}
-
-static void self_refresh_ctl(int enable)
-{
-	unsigned long mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
-
-	if (enable)
-		mctrl |= MCTRL0_SREFRESH_ENAB;
-	else
-		mctrl &= ~MCTRL0_SREFRESH_ENAB;
-	write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl);
-	(void) read_hbreg(HBIRD_MEM_CNTL0_ADDR);
-}
-
-static void frob_mem_refresh(int cpu_slowing_down,
-			     unsigned long clock_tick,
-			     unsigned long old_divisor, unsigned long divisor)
-{
-	unsigned long old_refr_count, refr_count, mctrl;
-
-	refr_count  = (clock_tick * MCTRL0_REFR_INTERVAL);
-	refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL);
-
-	mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
-	old_refr_count = (mctrl & MCTRL0_REFR_COUNT_MASK)
-		>> MCTRL0_REFR_COUNT_SHIFT;
-
-	mctrl &= ~MCTRL0_REFR_COUNT_MASK;
-	mctrl |= refr_count << MCTRL0_REFR_COUNT_SHIFT;
-	write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl);
-	mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
-
-	if (cpu_slowing_down && !(mctrl & MCTRL0_SREFRESH_ENAB)) {
-		unsigned long usecs;
-
-		/* We have to wait for both refresh counts (old
-		 * and new) to go to zero.
-		 */
-		usecs = (MCTRL0_REFR_CLKS_P_CNT *
-			 (refr_count + old_refr_count) *
-			 1000000UL *
-			 old_divisor) / clock_tick;
-		udelay(usecs + 1UL);
-	}
-}
-
-static void us2e_transition(unsigned long estar, unsigned long new_bits,
-			    unsigned long clock_tick,
-			    unsigned long old_divisor, unsigned long divisor)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	estar &= ~ESTAR_MODE_DIV_MASK;
-
-	/* This is based upon the state transition diagram in the IIe manual.  */
-	if (old_divisor == 2 && divisor == 1) {
-		self_refresh_ctl(0);
-		write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
-		frob_mem_refresh(0, clock_tick, old_divisor, divisor);
-	} else if (old_divisor == 1 && divisor == 2) {
-		frob_mem_refresh(1, clock_tick, old_divisor, divisor);
-		write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
-		self_refresh_ctl(1);
-	} else if (old_divisor == 1 && divisor > 2) {
-		us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick,
-				1, 2);
-		us2e_transition(estar, new_bits, clock_tick,
-				2, divisor);
-	} else if (old_divisor > 2 && divisor == 1) {
-		us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick,
-				old_divisor, 2);
-		us2e_transition(estar, new_bits, clock_tick,
-				2, divisor);
-	} else if (old_divisor < divisor) {
-		frob_mem_refresh(0, clock_tick, old_divisor, divisor);
-		write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
-	} else if (old_divisor > divisor) {
-		write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
-		frob_mem_refresh(1, clock_tick, old_divisor, divisor);
-	} else {
-		BUG();
-	}
-
-	local_irq_restore(flags);
-}
-
-static unsigned long index_to_estar_mode(unsigned int index)
-{
-	switch (index) {
-	case 0:
-		return ESTAR_MODE_DIV_1;
-
-	case 1:
-		return ESTAR_MODE_DIV_2;
-
-	case 2:
-		return ESTAR_MODE_DIV_4;
-
-	case 3:
-		return ESTAR_MODE_DIV_6;
-
-	case 4:
-		return ESTAR_MODE_DIV_8;
-
-	default:
-		BUG();
-	}
-}
-
-static unsigned long index_to_divisor(unsigned int index)
-{
-	switch (index) {
-	case 0:
-		return 1;
-
-	case 1:
-		return 2;
-
-	case 2:
-		return 4;
-
-	case 3:
-		return 6;
-
-	case 4:
-		return 8;
-
-	default:
-		BUG();
-	}
-}
-
-static unsigned long estar_to_divisor(unsigned long estar)
-{
-	unsigned long ret;
-
-	switch (estar & ESTAR_MODE_DIV_MASK) {
-	case ESTAR_MODE_DIV_1:
-		ret = 1;
-		break;
-	case ESTAR_MODE_DIV_2:
-		ret = 2;
-		break;
-	case ESTAR_MODE_DIV_4:
-		ret = 4;
-		break;
-	case ESTAR_MODE_DIV_6:
-		ret = 6;
-		break;
-	case ESTAR_MODE_DIV_8:
-		ret = 8;
-		break;
-	default:
-		BUG();
-	}
-
-	return ret;
-}
-
-static unsigned int us2e_freq_get(unsigned int cpu)
-{
-	cpumask_t cpus_allowed;
-	unsigned long clock_tick, estar;
-
-	if (!cpu_online(cpu))
-		return 0;
-
-	cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
-	set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
-	clock_tick = sparc64_get_clock_tick(cpu) / 1000;
-	estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR);
-
-	set_cpus_allowed_ptr(current, &cpus_allowed);
-
-	return clock_tick / estar_to_divisor(estar);
-}
-
-static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index)
-{
-	unsigned long new_bits, new_freq;
-	unsigned long clock_tick, divisor, old_divisor, estar;
-	cpumask_t cpus_allowed;
-	struct cpufreq_freqs freqs;
-
-	if (!cpu_online(cpu))
-		return;
-
-	cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
-	set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
-	new_freq = clock_tick = sparc64_get_clock_tick(cpu) / 1000;
-	new_bits = index_to_estar_mode(index);
-	divisor = index_to_divisor(index);
-	new_freq /= divisor;
-
-	estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR);
-
-	old_divisor = estar_to_divisor(estar);
-
-	freqs.old = clock_tick / old_divisor;
-	freqs.new = new_freq;
-	freqs.cpu = cpu;
-	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
-	if (old_divisor != divisor)
-		us2e_transition(estar, new_bits, clock_tick * 1000,
-				old_divisor, divisor);
-
-	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
-	set_cpus_allowed_ptr(current, &cpus_allowed);
-}
-
-static int us2e_freq_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
-{
-	unsigned int new_index = 0;
-
-	if (cpufreq_frequency_table_target(policy,
-					   &us2e_freq_table[policy->cpu].table[0],
-					   target_freq, relation, &new_index))
-		return -EINVAL;
-
-	us2e_set_cpu_divider_index(policy->cpu, new_index);
-
-	return 0;
-}
-
-static int us2e_freq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      &us2e_freq_table[policy->cpu].table[0]);
-}
-
-static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
-{
-	unsigned int cpu = policy->cpu;
-	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
-	struct cpufreq_frequency_table *table =
-		&us2e_freq_table[cpu].table[0];
-
-	table[0].index = 0;
-	table[0].frequency = clock_tick / 1;
-	table[1].index = 1;
-	table[1].frequency = clock_tick / 2;
-	table[2].index = 2;
-	table[2].frequency = clock_tick / 4;
-	table[2].index = 3;
-	table[2].frequency = clock_tick / 6;
-	table[2].index = 4;
-	table[2].frequency = clock_tick / 8;
-	table[2].index = 5;
-	table[3].frequency = CPUFREQ_TABLE_END;
-
-	policy->cpuinfo.transition_latency = 0;
-	policy->cur = clock_tick;
-
-	return cpufreq_frequency_table_cpuinfo(policy, table);
-}
-
-static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
-{
-	if (cpufreq_us2e_driver)
-		us2e_set_cpu_divider_index(policy->cpu, 0);
-
-	return 0;
-}
-
-static int __init us2e_freq_init(void)
-{
-	unsigned long manuf, impl, ver;
-	int ret;
-
-	if (tlb_type != spitfire)
-		return -ENODEV;
-
-	__asm__("rdpr %%ver, %0" : "=r" (ver));
-	manuf = ((ver >> 48) & 0xffff);
-	impl  = ((ver >> 32) & 0xffff);
-
-	if (manuf == 0x17 && impl == 0x13) {
-		struct cpufreq_driver *driver;
-
-		ret = -ENOMEM;
-		driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
-		if (!driver)
-			goto err_out;
-
-		us2e_freq_table = kzalloc(
-			(NR_CPUS * sizeof(struct us2e_freq_percpu_info)),
-			GFP_KERNEL);
-		if (!us2e_freq_table)
-			goto err_out;
-
-		driver->init = us2e_freq_cpu_init;
-		driver->verify = us2e_freq_verify;
-		driver->target = us2e_freq_target;
-		driver->get = us2e_freq_get;
-		driver->exit = us2e_freq_cpu_exit;
-		driver->owner = THIS_MODULE,
-		strcpy(driver->name, "UltraSPARC-IIe");
-
-		cpufreq_us2e_driver = driver;
-		ret = cpufreq_register_driver(driver);
-		if (ret)
-			goto err_out;
-
-		return 0;
-
-err_out:
-		if (driver) {
-			kfree(driver);
-			cpufreq_us2e_driver = NULL;
-		}
-		kfree(us2e_freq_table);
-		us2e_freq_table = NULL;
-		return ret;
-	}
-
-	return -ENODEV;
-}
-
-static void __exit us2e_freq_exit(void)
-{
-	if (cpufreq_us2e_driver) {
-		cpufreq_unregister_driver(cpufreq_us2e_driver);
-		kfree(cpufreq_us2e_driver);
-		cpufreq_us2e_driver = NULL;
-		kfree(us2e_freq_table);
-		us2e_freq_table = NULL;
-	}
-}
-
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
-MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-IIe");
-MODULE_LICENSE("GPL");
-
-module_init(us2e_freq_init);
-module_exit(us2e_freq_exit);
diff --git a/arch/sparc/kernel/us3_cpufreq.c b/arch/sparc/kernel/us3_cpufreq.c
deleted file mode 100644
index eb1624b931d..00000000000
--- a/arch/sparc/kernel/us3_cpufreq.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/* us3_cpufreq.c: UltraSPARC-III cpu frequency support
- *
- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
- *
- * Many thanks to Dominik Brodowski for fixing up the cpufreq
- * infrastructure in order to make this driver easier to implement.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/cpufreq.h>
-#include <linux/threads.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-
-#include <asm/head.h>
-#include <asm/timer.h>
-
-static struct cpufreq_driver *cpufreq_us3_driver;
-
-struct us3_freq_percpu_info {
-	struct cpufreq_frequency_table table[4];
-};
-
-/* Indexed by cpu number. */
-static struct us3_freq_percpu_info *us3_freq_table;
-
-/* UltraSPARC-III has three dividers: 1, 2, and 32.  These are controlled
- * in the Safari config register.
- */
-#define SAFARI_CFG_DIV_1	0x0000000000000000UL
-#define SAFARI_CFG_DIV_2	0x0000000040000000UL
-#define SAFARI_CFG_DIV_32	0x0000000080000000UL
-#define SAFARI_CFG_DIV_MASK	0x00000000C0000000UL
-
-static unsigned long read_safari_cfg(void)
-{
-	unsigned long ret;
-
-	__asm__ __volatile__("ldxa	[%%g0] %1, %0"
-			     : "=&r" (ret)
-			     : "i" (ASI_SAFARI_CONFIG));
-	return ret;
-}
-
-static void write_safari_cfg(unsigned long val)
-{
-	__asm__ __volatile__("stxa	%0, [%%g0] %1\n\t"
-			     "membar	#Sync"
-			     : /* no outputs */
-			     : "r" (val), "i" (ASI_SAFARI_CONFIG)
-			     : "memory");
-}
-
-static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg)
-{
-	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
-	unsigned long ret;
-
-	switch (safari_cfg & SAFARI_CFG_DIV_MASK) {
-	case SAFARI_CFG_DIV_1:
-		ret = clock_tick / 1;
-		break;
-	case SAFARI_CFG_DIV_2:
-		ret = clock_tick / 2;
-		break;
-	case SAFARI_CFG_DIV_32:
-		ret = clock_tick / 32;
-		break;
-	default:
-		BUG();
-	}
-
-	return ret;
-}
-
-static unsigned int us3_freq_get(unsigned int cpu)
-{
-	cpumask_t cpus_allowed;
-	unsigned long reg;
-	unsigned int ret;
-
-	if (!cpu_online(cpu))
-		return 0;
-
-	cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
-	set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
-	reg = read_safari_cfg();
-	ret = get_current_freq(cpu, reg);
-
-	set_cpus_allowed_ptr(current, &cpus_allowed);
-
-	return ret;
-}
-
-static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
-{
-	unsigned long new_bits, new_freq, reg;
-	cpumask_t cpus_allowed;
-	struct cpufreq_freqs freqs;
-
-	if (!cpu_online(cpu))
-		return;
-
-	cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
-	set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
-	new_freq = sparc64_get_clock_tick(cpu) / 1000;
-	switch (index) {
-	case 0:
-		new_bits = SAFARI_CFG_DIV_1;
-		new_freq /= 1;
-		break;
-	case 1:
-		new_bits = SAFARI_CFG_DIV_2;
-		new_freq /= 2;
-		break;
-	case 2:
-		new_bits = SAFARI_CFG_DIV_32;
-		new_freq /= 32;
-		break;
-
-	default:
-		BUG();
-	}
-
-	reg = read_safari_cfg();
-
-	freqs.old = get_current_freq(cpu, reg);
-	freqs.new = new_freq;
-	freqs.cpu = cpu;
-	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
-	reg &= ~SAFARI_CFG_DIV_MASK;
-	reg |= new_bits;
-	write_safari_cfg(reg);
-
-	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
-	set_cpus_allowed_ptr(current, &cpus_allowed);
-}
-
-static int us3_freq_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
-{
-	unsigned int new_index = 0;
-
-	if (cpufreq_frequency_table_target(policy,
-					   &us3_freq_table[policy->cpu].table[0],
-					   target_freq,
-					   relation,
-					   &new_index))
-		return -EINVAL;
-
-	us3_set_cpu_divider_index(policy->cpu, new_index);
-
-	return 0;
-}
-
-static int us3_freq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      &us3_freq_table[policy->cpu].table[0]);
-}
-
-static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
-{
-	unsigned int cpu = policy->cpu;
-	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
-	struct cpufreq_frequency_table *table =
-		&us3_freq_table[cpu].table[0];
-
-	table[0].index = 0;
-	table[0].frequency = clock_tick / 1;
-	table[1].index = 1;
-	table[1].frequency = clock_tick / 2;
-	table[2].index = 2;
-	table[2].frequency = clock_tick / 32;
-	table[3].index = 0;
-	table[3].frequency = CPUFREQ_TABLE_END;
-
-	policy->cpuinfo.transition_latency = 0;
-	policy->cur = clock_tick;
-
-	return cpufreq_frequency_table_cpuinfo(policy, table);
-}
-
-static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
-{
-	if (cpufreq_us3_driver)
-		us3_set_cpu_divider_index(policy->cpu, 0);
-
-	return 0;
-}
-
-static int __init us3_freq_init(void)
-{
-	unsigned long manuf, impl, ver;
-	int ret;
-
-	if (tlb_type != cheetah && tlb_type != cheetah_plus)
-		return -ENODEV;
-
-	__asm__("rdpr %%ver, %0" : "=r" (ver));
-	manuf = ((ver >> 48) & 0xffff);
-	impl  = ((ver >> 32) & 0xffff);
-
-	if (manuf == CHEETAH_MANUF &&
-	    (impl == CHEETAH_IMPL ||
-	     impl == CHEETAH_PLUS_IMPL ||
-	     impl == JAGUAR_IMPL ||
-	     impl == PANTHER_IMPL)) {
-		struct cpufreq_driver *driver;
-
-		ret = -ENOMEM;
-		driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
-		if (!driver)
-			goto err_out;
-
-		us3_freq_table = kzalloc(
-			(NR_CPUS * sizeof(struct us3_freq_percpu_info)),
-			GFP_KERNEL);
-		if (!us3_freq_table)
-			goto err_out;
-
-		driver->init = us3_freq_cpu_init;
-		driver->verify = us3_freq_verify;
-		driver->target = us3_freq_target;
-		driver->get = us3_freq_get;
-		driver->exit = us3_freq_cpu_exit;
-		driver->owner = THIS_MODULE,
-		strcpy(driver->name, "UltraSPARC-III");
-
-		cpufreq_us3_driver = driver;
-		ret = cpufreq_register_driver(driver);
-		if (ret)
-			goto err_out;
-
-		return 0;
-
-err_out:
-		if (driver) {
-			kfree(driver);
-			cpufreq_us3_driver = NULL;
-		}
-		kfree(us3_freq_table);
-		us3_freq_table = NULL;
-		return ret;
-	}
-
-	return -ENODEV;
-}
-
-static void __exit us3_freq_exit(void)
-{
-	if (cpufreq_us3_driver) {
-		cpufreq_unregister_driver(cpufreq_us3_driver);
-		kfree(cpufreq_us3_driver);
-		cpufreq_us3_driver = NULL;
-		kfree(us3_freq_table);
-		us3_freq_table = NULL;
-	}
-}
-
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
-MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-III");
-MODULE_LICENSE("GPL");
-
-module_init(us3_freq_init);
-module_exit(us3_freq_exit);
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index 3e244f31e56..8647fcc5ca6 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -342,6 +342,7 @@ static void vio_remove(struct mdesc_handle *hp, u64 node)
 		printk(KERN_INFO "VIO: Removing device %s\n", dev_name(dev));
 
 		device_unregister(dev);
+		put_device(dev);
 	}
 }