driver-core: Add attribute argument to class_attribute 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.

This makes the class attributes the same as sysdev_class attributes
and plain attributes.

This will allow further cleanups in drivers.

Full tree sweep converting all users.

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

4 files changed, 12 insertions, 4 deletions

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 400efa26ddba..4db7ae2fe07d 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -3937,7 +3937,9 @@ drop:
         return 0;
 }
 
-static ssize_t l2cap_sysfs_show(struct class *dev, char *buf)
+static ssize_t l2cap_sysfs_show(struct class *dev,
+                                struct class_attribute *attr,
+                                char *buf)
 {
         struct sock *sk;
         struct hlist_node *node;
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 89f4a59eb82b..db8a68e1a5ba 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -2098,7 +2098,9 @@ static struct hci_cb rfcomm_cb = {
         .security_cfm   = rfcomm_security_cfm
 };
 
-static ssize_t rfcomm_dlc_sysfs_show(struct class *dev, char *buf)
+static ssize_t rfcomm_dlc_sysfs_show(struct class *dev,
+                                     struct class_attribute *attr,
+                                     char *buf)
 {
         struct rfcomm_session *s;
         struct list_head *pp, *p;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 4b5968dda673..ca87d6ac6a20 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -1061,7 +1061,9 @@ done:
         return result;
 }
 
-static ssize_t rfcomm_sock_sysfs_show(struct class *dev, char *buf)
+static ssize_t rfcomm_sock_sysfs_show(struct class *dev,
+                                      struct class_attribute *attr,
+                                      char *buf)
 {
         struct sock *sk;
         struct hlist_node *node;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index dd8f6ec57dce..f93b939539bc 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -953,7 +953,9 @@ drop:
         return 0;
 }
 
-static ssize_t sco_sysfs_show(struct class *dev, char *buf)
+static ssize_t sco_sysfs_show(struct class *dev,
+                                struct class_attribute *attr,
+                                char *buf)
 {
         struct sock *sk;
         struct hlist_node *node;