[PATCH] for_each_possible_cpu: powerpc

for_each_cpu() actually iterates across all possible CPUs.  We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs.  This is inefficient and
possibly buggy.

We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.

This patch replaces for_each_cpu with for_each_possible_cpu.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

3 files changed, 3 insertions, 3 deletions

diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index ae62f5d5c31b..978be1c30c1b 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -364,7 +364,7 @@ void iic_init_IRQ(void)
                 setup_iic_hardcoded();
 
         irq_offset = 0;
-        for_each_cpu(cpu) {
+        for_each_possible_cpu(cpu) {
                 iic = &per_cpu(iic, cpu);
                 if (iic->regs)
                         out_be64(&iic->regs->prio, 0xff);
diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c
index 58baeb52f6fc..7eed8c624517 100644
--- a/arch/powerpc/platforms/cell/pervasive.c
+++ b/arch/powerpc/platforms/cell/pervasive.c
@@ -217,7 +217,7 @@ void __init cell_pervasive_init(void)
         if (!cpu_has_feature(CPU_FTR_PAUSE_ZERO))
                 return;
 
-        for_each_cpu(cpu) {
+        for_each_possible_cpu(cpu) {
                 p = &cbe_pervasive[cpu];
                 ret = cbe_find_pmd_mmio(cpu, p);
                 if (ret)
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index c60d3ff25a2f..4864cb32be25 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -541,7 +541,7 @@ nextnode:
                 ops = &pSeriesLP_ops;
         else {
 #ifdef CONFIG_SMP
-                for_each_cpu(i) {
+                for_each_possible_cpu(i) {
                         int hard_id;
 
                         /* FIXME: Do this dynamically! --RR */