powerpc/cpumask: Convert /proc/cpuinfo to new cpumask API

Use new cpumask API in /proc/cpuinfo code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 13 insertions, 9 deletions

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 58699a43eaa2..8dcec47a7b39 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -200,11 +200,6 @@ static int show_cpuinfo(struct seq_file *m, void *v)
         unsigned short maj;
         unsigned short min;
 
-        if (cpu_id == NR_CPUS) {
-                show_cpuinfo_summary(m);
-                return 0;
-        }
-
         /* We only show online cpus: disable preempt (overzealous, I
          * knew) to prevent cpu going down. */
         preempt_disable();
@@ -312,19 +307,28 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 #endif
 
         preempt_enable();
+
+        /* If this is the last cpu, print the summary */
+        if (cpumask_next(cpu_id, cpu_online_mask) >= nr_cpu_ids)
+                show_cpuinfo_summary(m);
+
         return 0;
 }
 
 static void *c_start(struct seq_file *m, loff_t *pos)
 {
-        unsigned long i = *pos;
-
-        return i <= NR_CPUS ? (void *)(i + 1) : NULL;
+        if (*pos == 0)  /* just in case, cpu 0 is not the first */
+                *pos = cpumask_first(cpu_online_mask);
+        else
+                *pos = cpumask_next(*pos - 1, cpu_online_mask);
+        if ((*pos) < nr_cpu_ids)
+                return (void *)(unsigned long)(*pos + 1);
+        return NULL;
 }
 
 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 {
-        ++*pos;
+        (*pos)++;
         return c_start(m, pos);
 }