2 files changed, 5 insertions, 13 deletions

diff --git a/arch/ppc/kernel/head_8xx.S b/arch/ppc/kernel/head_8xx.S
index 5a7a64e91fc5..eb18cadb3755 100644
--- a/arch/ppc/kernel/head_8xx.S
+++ b/arch/ppc/kernel/head_8xx.S
@@ -288,13 +288,11 @@ SystemCall:
  * For the MPC8xx, this is a software tablewalk to load the instruction
  * TLB.  It is modelled after the example in the Motorola manual.  The task
  * switch loads the M_TWB register with the pointer to the first level table.
- * If we discover there is no second level table (the value is zero), the
- * plan was to load that into the TLB, which causes another fault into the
- * TLB Error interrupt where we can handle such problems.  However, that did
- * not work, so if we discover there is no second level table, we restore
- * registers and branch to the error exception.  We have to use the MD_xxx
- * registers for the tablewalk because the equivalent MI_xxx registers
- * only perform the attribute functions.
+ * If we discover there is no second level table (value is zero) or if there
+ * is an invalid pte, we load that into the TLB, which causes another fault
+ * into the TLB Error interrupt where we can handle such problems.
+ * We have to use the MD_xxx registers for the tablewalk because the
+ * equivalent MI_xxx registers only perform the attribute functions.
  */
 InstructionTLBMiss:
 #ifdef CONFIG_8xx_CPU6
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index c42f75326939..929e5d1cc7fe 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -121,8 +121,6 @@ void machine_restart(char *cmd)
         ppc_md.restart(cmd);
 }
 
-EXPORT_SYMBOL(machine_restart);
-
 void machine_power_off(void)
 {
 #ifdef CONFIG_NVRAM
@@ -131,8 +129,6 @@ void machine_power_off(void)
         ppc_md.power_off();
 }
 
-EXPORT_SYMBOL(machine_power_off);
-
 void machine_halt(void)
 {
 #ifdef CONFIG_NVRAM
@@ -141,8 +137,6 @@ void machine_halt(void)
         ppc_md.halt();
 }
 
-EXPORT_SYMBOL(machine_halt);
-
 void (*pm_power_off)(void) = machine_power_off;
 
 #ifdef CONFIG_TAU