6 files changed, 6 insertions, 12 deletions
diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index 766718814515..7065e40e2f42 100644
--- a/arch/powerpc/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -4,6 +4,8 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+
 #include <asm/errno.h>
 #include <asm/of_device.h>
 
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 943425a93354..568ea335d616 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -248,7 +248,7 @@ void ptrace_disable(struct task_struct *child)
 	clear_single_step(child);
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret = -EPERM;
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index 544368277d7e..91eb952e0293 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -40,8 +40,8 @@
  * in exit.c or in signal.c.
  */
 
-int compat_sys_ptrace(int request, int pid, unsigned long addr,
-		      unsigned long data)
+long compat_sys_ptrace(int request, int pid, unsigned long addr,
+		       unsigned long data)
 {
 	struct task_struct *child;
 	int ret = -EPERM;
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index ed5c38fb146c..23436b6c1881 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -70,10 +70,6 @@
 #include <asm/iSeries/HvCallXm.h>
 #endif
 
-u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /* keep track of when we need to update the rtc */
 time_t last_rtc_update;
 extern int piranha_simulator;
diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c
index 4b8c5ad5e7dc..3794715b2972 100644
--- a/arch/powerpc/lib/locks.c
+++ b/arch/powerpc/lib/locks.c
@@ -17,6 +17,7 @@
 #include <linux/spinlock.h>
 #include <linux/module.h>
 #include <linux/stringify.h>
+#include <linux/smp.h>
 
 /* waiting for a spinlock... */
 #if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
diff --git a/arch/powerpc/mm/imalloc.c b/arch/powerpc/mm/imalloc.c
index c65b87b92756..f4ca29cf5364 100644
--- a/arch/powerpc/mm/imalloc.c
+++ b/arch/powerpc/mm/imalloc.c
@@ -300,12 +300,7 @@ void im_free(void * addr)
 	for (p = &imlist ; (tmp = *p) ; p = &tmp->next) {
 		if (tmp->addr == addr) {
 			*p = tmp->next;
-
-			/* XXX: do we need the lock? */
-			spin_lock(&init_mm.page_table_lock);
 			unmap_vm_area(tmp);
-			spin_unlock(&init_mm.page_table_lock);
-
 			kfree(tmp);
 			up(&imlist_sem);
 			return;