cpumask: add show cpu map functions

  * Add cpu_sysdev_class functions to display the following maps
    with cpulist_scnprintf().

	cpu_online_map
	cpu_present_map
	cpu_possible_map

  * Small change to include/linux/sysdev.h to allow the attribute
    name and label to be different (to avoid collision with the
    "attr_online" entry for bringing cpus on- and off-line.)

Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 11 insertions, 6 deletions

diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index f752e73bf97..f2767bc6b73 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -45,12 +45,16 @@ struct sysdev_class_attribute {
         ssize_t (*store)(struct sysdev_class *, const char *, size_t);
 };
 
-#define SYSDEV_CLASS_ATTR(_name,_mode,_show,_store)             \
-struct sysdev_class_attribute attr_##_name = {                  \
+#define _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store)            \
+{                                                               \
         .attr = {.name = __stringify(_name), .mode = _mode },   \
         .show   = _show,                                        \
         .store  = _store,                                       \
-};
+}
+
+#define SYSDEV_CLASS_ATTR(_name,_mode,_show,_store)             \
+        struct sysdev_class_attribute attr_##_name =            \
+                _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store)
 
 
 extern int sysdev_class_register(struct sysdev_class *);
@@ -100,15 +104,16 @@ struct sysdev_attribute {
 };
 
 
-#define _SYSDEV_ATTR(_name,_mode,_show,_store)                  \
+#define _SYSDEV_ATTR(_name, _mode, _show, _store)               \
 {                                                               \
         .attr = { .name = __stringify(_name), .mode = _mode },  \
         .show   = _show,                                        \
         .store  = _store,                                       \
 }
 
-#define SYSDEV_ATTR(_name,_mode,_show,_store)           \
-struct sysdev_attribute attr_##_name = _SYSDEV_ATTR(_name,_mode,_show,_store);
+#define SYSDEV_ATTR(_name, _mode, _show, _store)                \
+        struct sysdev_attribute attr_##_name =                  \
+                _SYSDEV_ATTR(_name, _mode, _show, _store);
 
 extern int sysdev_create_file(struct sys_device *, struct sysdev_attribute *);
 extern void sysdev_remove_file(struct sys_device *, struct sysdev_attribute *);