sysdev: Pass attribute in sysdev_class attributes show/store

Passing the attribute to the low level IO functions allows all kinds
of cleanups, by sharing low level IO code without requiring
an own function for every piece of data.

Also drivers can extend the attributes with own data fields
and use that in the low level function.

Similar to sysdev_attributes and normal attributes.

This is a tree-wide sweep, converting everything in one go.

No functional changes in this patch other than passing the new
argument everywhere.

Tested on x86, the non x86 parts are uncompiled.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 12 insertions, 5 deletions

diff --git a/drivers/base/node.c b/drivers/base/node.c
index 7012279..85c9d30 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -544,23 +544,29 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
 	return n;
 }
 
-static ssize_t print_nodes_possible(struct sysdev_class *class, char *buf)
+static ssize_t print_nodes_possible(struct sysdev_class *class,
+				    struct sysdev_class_attribute *attr, char *buf)
 {
 	return print_nodes_state(N_POSSIBLE, buf);
 }
 
-static ssize_t print_nodes_online(struct sysdev_class *class, char *buf)
+static ssize_t print_nodes_online(struct sysdev_class *class,
+				  struct sysdev_class_attribute *attr,
+				  char *buf)
 {
 	return print_nodes_state(N_ONLINE, buf);
 }
 
 static ssize_t print_nodes_has_normal_memory(struct sysdev_class *class,
-						char *buf)
+					     struct sysdev_class_attribute *attr,
+					     char *buf)
 {
 	return print_nodes_state(N_NORMAL_MEMORY, buf);
 }
 
-static ssize_t print_nodes_has_cpu(struct sysdev_class *class, char *buf)
+static ssize_t print_nodes_has_cpu(struct sysdev_class *class,
+				   struct sysdev_class_attribute *attr,
+				   char *buf)
 {
 	return print_nodes_state(N_CPU, buf);
 }
@@ -573,7 +579,8 @@ static SYSDEV_CLASS_ATTR(has_cpu, 0444, print_nodes_has_cpu, NULL);
 
 #ifdef CONFIG_HIGHMEM
 static ssize_t print_nodes_has_high_memory(struct sysdev_class *class,
-						 char *buf)
+					   struct sysdev_class_attribute *attr,
+					   char *buf)
 {
 	return print_nodes_state(N_HIGH_MEMORY, buf);
 }