[PATCH] w1: new family structure.

Removed some fields which are not required.
First step for writing operations.
Now only read and read name remain.
Patch depends on w1 cleanups patch.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

5 files changed, 2 insertions, 33 deletions

diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 5b49c9a937f0..c85d75ed835a 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -102,9 +102,6 @@ static ssize_t w1_default_read_bin(struct kobject *kobj, char *buf, loff_t off,
 static struct device_attribute w1_slave_attribute =
         __ATTR(name, S_IRUGO, w1_default_read_name, NULL);
 
-static struct device_attribute w1_slave_attribute_val =
-        __ATTR(value, S_IRUGO, w1_default_read_name, NULL);
-
 static struct bin_attribute w1_slave_bin_attribute = {
         .attr = {
                 .name = "w1_slave",
@@ -310,12 +307,9 @@ static int __w1_attach_slave_device(struct w1_slave *sl)
 
         memcpy(&sl->attr_bin, &w1_slave_bin_attribute, sizeof(sl->attr_bin));
         memcpy(&sl->attr_name, &w1_slave_attribute, sizeof(sl->attr_name));
-        memcpy(&sl->attr_val, &w1_slave_attribute_val, sizeof(sl->attr_val));
 
         sl->attr_bin.read = sl->family->fops->rbin;
         sl->attr_name.show = sl->family->fops->rname;
-        sl->attr_val.show = sl->family->fops->rval;
-        sl->attr_val.attr.name = sl->family->fops->rvalname;
 
         err = device_create_file(&sl->dev, &sl->attr_name);
         if (err < 0) {
@@ -326,23 +320,12 @@ static int __w1_attach_slave_device(struct w1_slave *sl)
                 return err;
         }
 
-        err = device_create_file(&sl->dev, &sl->attr_val);
-        if (err < 0) {
-                dev_err(&sl->dev,
-                         "sysfs file creation for [%s] failed. err=%d\n",
-                         sl->dev.bus_id, err);
-                device_remove_file(&sl->dev, &sl->attr_name);
-                device_unregister(&sl->dev);
-                return err;
-        }
-
         err = sysfs_create_bin_file(&sl->dev.kobj, &sl->attr_bin);
         if (err < 0) {
                 dev_err(&sl->dev,
                          "sysfs file creation for [%s] failed. err=%d\n",
                          sl->dev.bus_id, err);
                 device_remove_file(&sl->dev, &sl->attr_name);
-                device_remove_file(&sl->dev, &sl->attr_val);
                 device_unregister(&sl->dev);
                 return err;
         }
@@ -428,7 +411,6 @@ static void w1_slave_detach(struct w1_slave *sl)
 
         sysfs_remove_bin_file (&sl->dev.kobj, &sl->attr_bin);
         device_remove_file(&sl->dev, &sl->attr_name);
-        device_remove_file(&sl->dev, &sl->attr_val);
         device_unregister(&sl->dev);
         w1_family_put(sl->family);
 
diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h
index 90a2e737d2ca..44dfb92e55cd 100644
--- a/drivers/w1/w1.h
+++ b/drivers/w1/w1.h
@@ -79,7 +79,7 @@ struct w1_slave
         struct completion       dev_released;
 
         struct bin_attribute    attr_bin;
-        struct device_attribute attr_name, attr_val;
+        struct device_attribute attr_name;
 };
 
 typedef void (* w1_slave_found_callback)(unsigned long, u64);
diff --git a/drivers/w1/w1_family.c b/drivers/w1/w1_family.c
index 3941fb05b8e1..b8502d910c50 100644
--- a/drivers/w1/w1_family.c
+++ b/drivers/w1/w1_family.c
@@ -30,7 +30,7 @@ static LIST_HEAD(w1_families);
 
 static int w1_check_family(struct w1_family *f)
 {
-        if (!f->fops->rname || !f->fops->rbin || !f->fops->rval || !f->fops->rvalname)
+        if (!f->fops->rname || !f->fops->rbin)
                 return -EINVAL;
 
         return 0;
diff --git a/drivers/w1/w1_family.h b/drivers/w1/w1_family.h
index 218f12720622..b26da01bbc38 100644
--- a/drivers/w1/w1_family.h
+++ b/drivers/w1/w1_family.h
@@ -39,9 +39,6 @@ struct w1_family_ops
 {
         ssize_t (* rname)(struct device *, struct device_attribute *, char *);
         ssize_t (* rbin)(struct kobject *, char *, loff_t, size_t);
-
-        ssize_t (* rval)(struct device *, struct device_attribute *, char *);
-        unsigned char rvalname[MAXNAMELEN];
 };
 
 struct w1_family
diff --git a/drivers/w1/w1_therm.c b/drivers/w1/w1_therm.c
index e52abca05070..b9896c10af6d 100644
--- a/drivers/w1/w1_therm.c
+++ b/drivers/w1/w1_therm.c
@@ -43,14 +43,11 @@ static u8 bad_roms[][9] = {
                         };
 
 static ssize_t w1_therm_read_name(struct device *, struct device_attribute *attr, char *);
-static ssize_t w1_therm_read_temp(struct device *, struct device_attribute *attr, char *);
 static ssize_t w1_therm_read_bin(struct kobject *, char *, loff_t, size_t);
 
 static struct w1_family_ops w1_therm_fops = {
         .rname = &w1_therm_read_name,
         .rbin = &w1_therm_read_bin,
-        .rval = &w1_therm_read_temp,
-        .rvalname = "temp1_input",
 };
 
 static struct w1_family w1_therm_family_DS18S20 = {
@@ -142,13 +139,6 @@ static inline int w1_convert_temp(u8 rom[9], u8 fid)
         return 0;
 }
 
-static ssize_t w1_therm_read_temp(struct device *dev, struct device_attribute *attr, char *buf)
-{
-        struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
-        return sprintf(buf, "%d\n", w1_convert_temp(sl->rom, sl->family->fid));
-}
-
 static int w1_therm_check_rom(u8 rom[9])
 {
         int i;