1 files changed, 19 insertions, 17 deletions

diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 8f36504075ed..29fde70090fe 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -86,15 +86,13 @@ FixPerRegisters(struct task_struct *task)
                 per_info->control_regs.bits.storage_alt_space_ctl = 0;
 }
 
-void
-set_single_step(struct task_struct *task)
+static void set_single_step(struct task_struct *task)
 {
         task->thread.per_info.single_step = 1;
         FixPerRegisters(task);
 }
 
-void
-clear_single_step(struct task_struct *task)
+static void clear_single_step(struct task_struct *task)
 {
         task->thread.per_info.single_step = 0;
         FixPerRegisters(task);
@@ -309,7 +307,7 @@ do_ptrace_normal(struct task_struct *child, long request, long addr, long data)
                 copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
                 if (copied != sizeof(tmp))
                         return -EIO;
-                return put_user(tmp, (unsigned long __user *) data);
+                return put_user(tmp, (unsigned long __force __user *) data);
 
         case PTRACE_PEEKUSR:
                 /* read the word at location addr in the USER area. */
@@ -331,7 +329,7 @@ do_ptrace_normal(struct task_struct *child, long request, long addr, long data)
 
         case PTRACE_PEEKUSR_AREA:
         case PTRACE_POKEUSR_AREA:
-                if (copy_from_user(&parea, (void __user *) addr,
+                if (copy_from_user(&parea, (void __force __user *) addr,
                                                         sizeof(parea)))
                         return -EFAULT;
                 addr = parea.kernel_addr;
@@ -341,10 +339,11 @@ do_ptrace_normal(struct task_struct *child, long request, long addr, long data)
                         if (request == PTRACE_PEEKUSR_AREA)
                                 ret = peek_user(child, addr, data);
                         else {
-                                addr_t tmp;
-                                if (get_user (tmp, (addr_t __user *) data))
+                                addr_t utmp;
+                                if (get_user(utmp,
+                                             (addr_t __force __user *) data))
                                         return -EFAULT;
-                                ret = poke_user(child, addr, tmp);
+                                ret = poke_user(child, addr, utmp);
                         }
                         if (ret)
                                 return ret;
@@ -550,7 +549,7 @@ do_ptrace_emu31(struct task_struct *child, long request, long addr, long data)
                 copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
                 if (copied != sizeof(tmp))
                         return -EIO;
-                return put_user(tmp, (unsigned int __user *) data);
+                return put_user(tmp, (unsigned int __force __user *) data);
 
         case PTRACE_PEEKUSR:
                 /* read the word at location addr in the USER area. */
@@ -571,7 +570,7 @@ do_ptrace_emu31(struct task_struct *child, long request, long addr, long data)
 
         case PTRACE_PEEKUSR_AREA:
         case PTRACE_POKEUSR_AREA:
-                if (copy_from_user(&parea, (void __user *) addr,
+                if (copy_from_user(&parea, (void __force __user *) addr,
                                                         sizeof(parea)))
                         return -EFAULT;
                 addr = parea.kernel_addr;
@@ -581,10 +580,11 @@ do_ptrace_emu31(struct task_struct *child, long request, long addr, long data)
                         if (request == PTRACE_PEEKUSR_AREA)
                                 ret = peek_user_emu31(child, addr, data);
                         else {
-                                __u32 tmp;
-                                if (get_user (tmp, (__u32 __user *) data))
+                                __u32 utmp;
+                                if (get_user(utmp,
+                                             (__u32 __force __user *) data))
                                         return -EFAULT;
-                                ret = poke_user_emu31(child, addr, tmp);
+                                ret = poke_user_emu31(child, addr, utmp);
                         }
                         if (ret)
                                 return ret;
@@ -595,17 +595,19 @@ do_ptrace_emu31(struct task_struct *child, long request, long addr, long data)
                 return 0;
         case PTRACE_GETEVENTMSG:
                 return put_user((__u32) child->ptrace_message,
-                                (unsigned int __user *) data);
+                                (unsigned int __force __user *) data);
         case PTRACE_GETSIGINFO:
                 if (child->last_siginfo == NULL)
                         return -EINVAL;
-                return copy_siginfo_to_user32((compat_siginfo_t __user *) data,
+                return copy_siginfo_to_user32((compat_siginfo_t
+                                               __force __user *) data,
                                               child->last_siginfo);
         case PTRACE_SETSIGINFO:
                 if (child->last_siginfo == NULL)
                         return -EINVAL;
                 return copy_siginfo_from_user32(child->last_siginfo,
-                                                (compat_siginfo_t __user *) data);
+                                                (compat_siginfo_t
+                                                 __force __user *) data);
         }
         return ptrace_request(child, request, addr, data);
 }