s390/ccwgroup: remove ccwgroup_create_from_string

Remove the old ccwgroup_create_from_string interface since all
drivers have been converted to ccwgroup_create_dev. Also remove
now unused members of ccwgroup_driver.

Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

5 files changed, 8 insertions, 72 deletions

diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index c69cee607aed..731470e68493 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -30,19 +30,6 @@
  * to devices that use multiple subchannels.
  */
 
-/* a device matches a driver if all its slave devices match the same
- * entry of the driver */
-static int ccwgroup_bus_match(struct device *dev, struct device_driver * drv)
-{
-        struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
-        struct ccwgroup_driver *gdrv = to_ccwgroupdrv(drv);
-
-        if (gdev->creator_id == gdrv->driver_id)
-                return 1;
-
-        return 0;
-}
-
 static struct bus_type ccwgroup_bus_type;
 
 static void __ccwgroup_remove_symlinks(struct ccwgroup_device *gdev)
@@ -292,7 +279,6 @@ static int __get_next_id(const char **buf, struct ccw_dev_id *id)
 /**
  * ccwgroup_create_dev() - create and register a ccw group device
  * @parent: parent device for the new device
- * @creator_id: identifier of creating driver
  * @gdrv: driver for the new group device
  * @num_devices: number of slave devices
  * @buf: buffer containing comma separated bus ids of slave devices
@@ -304,9 +290,8 @@ static int __get_next_id(const char **buf, struct ccw_dev_id *id)
  * Context:
  *  non-atomic
  */
-int ccwgroup_create_dev(struct device *parent, unsigned int creator_id,
-                        struct ccwgroup_driver *gdrv, int num_devices,
-                        const char *buf)
+int ccwgroup_create_dev(struct device *parent, struct ccwgroup_driver *gdrv,
+                        int num_devices, const char *buf)
 {
         struct ccwgroup_device *gdev;
         struct ccw_dev_id dev_id;
@@ -320,10 +305,6 @@ int ccwgroup_create_dev(struct device *parent, unsigned int creator_id,
         atomic_set(&gdev->onoff, 0);
         mutex_init(&gdev->reg_mutex);
         mutex_lock(&gdev->reg_mutex);
-        if (gdrv)
-                gdev->creator_id = gdrv->driver_id;
-        else
-                gdev->creator_id = creator_id;
         gdev->count = num_devices;
         gdev->dev.bus = &ccwgroup_bus_type;
         gdev->dev.parent = parent;
@@ -402,30 +383,6 @@ error:
 }
 EXPORT_SYMBOL(ccwgroup_create_dev);
 
-/**
- * ccwgroup_create_from_string() - create and register a ccw group device
- * @root: parent device for the new device
- * @creator_id: identifier of creating driver
- * @cdrv: ccw driver of slave devices
- * @num_devices: number of slave devices
- * @buf: buffer containing comma separated bus ids of slave devices
- *
- * Create and register a new ccw group device as a child of @root. Slave
- * devices are obtained from the list of bus ids given in @buf and must all
- * belong to @cdrv.
- * Returns:
- *  %0 on success and an error code on failure.
- * Context:
- *  non-atomic
- */
-int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
-                                struct ccw_driver *cdrv, int num_devices,
-                                const char *buf)
-{
-        return ccwgroup_create_dev(root, creator_id, NULL, num_devices, buf);
-}
-EXPORT_SYMBOL(ccwgroup_create_from_string);
-
 static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action,
                              void *data)
 {
@@ -467,14 +424,6 @@ module_exit(cleanup_ccwgroup);
 
 /************************** driver stuff ******************************/
 
-static int ccwgroup_probe(struct device *dev)
-{
-        struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
-        struct ccwgroup_driver *gdrv = to_ccwgroupdrv(dev->driver);
-
-        return gdrv->probe ? gdrv->probe(gdev) : -ENODEV;
-}
-
 static int ccwgroup_remove(struct device *dev)
 {
         struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
@@ -569,8 +518,6 @@ static const struct dev_pm_ops ccwgroup_pm_ops = {
 
 static struct bus_type ccwgroup_bus_type = {
         .name   = "ccwgroup",
-        .match  = ccwgroup_bus_match,
-        .probe  = ccwgroup_probe,
         .remove = ccwgroup_remove,
         .shutdown = ccwgroup_shutdown,
         .pm = &ccwgroup_pm_ops,
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index f7e7dcd74817..634c7e8e631d 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -262,12 +262,10 @@ static struct ccwgroup_driver claw_group_driver = {
                 .owner  = THIS_MODULE,
                 .name   = "claw",
         },
-        .max_slaves  = 2,
-        .driver_id   = 0xC3D3C1E6,
         .setup       = claw_probe,
-        .remove      = claw_remove_device,
-        .set_online  = claw_new_device,
-        .set_offline = claw_shutdown_device,
+        .remove      = claw_remove_device,
+        .set_online  = claw_new_device,
+        .set_offline = claw_shutdown_device,
         .prepare     = claw_pm_prepare,
 };
 
@@ -292,8 +290,7 @@ static ssize_t claw_driver_group_store(struct device_driver *ddrv,
                                        const char *buf, size_t count)
 {
         int err;
-        err = ccwgroup_create_dev(claw_root_dev, claw_group_driver.driver_id,
-                                  &claw_group_driver, 2, buf);
+        err = ccwgroup_create_dev(claw_root_dev, &claw_group_driver, 2, buf);
         return err ? err : count;
 }
 static DRIVER_ATTR(group, 0200, NULL, claw_driver_group_store);
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index abb84c3849e0..84777e369a29 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1767,8 +1767,6 @@ static struct ccwgroup_driver ctcm_group_driver = {
                 .owner  = THIS_MODULE,
                 .name   = CTC_DRIVER_NAME,
         },
-        .max_slaves  = 2,
-        .driver_id   = 0xC3E3C3D4,      /* CTCM */
         .setup       = ctcm_probe_device,
         .remove      = ctcm_remove_device,
         .set_online  = ctcm_new_device,
@@ -1783,8 +1781,7 @@ static ssize_t ctcm_driver_group_store(struct device_driver *ddrv,
 {
         int err;
 
-        err = ccwgroup_create_dev(ctcm_root_dev, ctcm_group_driver.driver_id,
-                                  &ctcm_group_driver, 2, buf);
+        err = ccwgroup_create_dev(ctcm_root_dev, &ctcm_group_driver, 2, buf);
         return err ? err : count;
 }
 static DRIVER_ATTR(group, 0200, NULL, ctcm_driver_group_store);
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 0abba9364214..f1dfc8d72d7a 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -2412,8 +2412,6 @@ static struct ccwgroup_driver lcs_group_driver = {
                 .owner  = THIS_MODULE,
                 .name   = "lcs",
         },
-        .max_slaves  = 2,
-        .driver_id   = 0xD3C3E2,
         .setup       = lcs_probe_device,
         .remove      = lcs_remove_device,
         .set_online  = lcs_new_device,
@@ -2429,8 +2427,7 @@ static ssize_t lcs_driver_group_store(struct device_driver *ddrv,
                                       const char *buf, size_t count)
 {
         int err;
-        err = ccwgroup_create_dev(lcs_root_dev, lcs_group_driver.driver_id,
-                                  &lcs_group_driver, 2, buf);
+        err = ccwgroup_create_dev(lcs_root_dev, &lcs_group_driver, 2, buf);
         return err ? err : count;
 }
 static DRIVER_ATTR(group, 0200, NULL, lcs_driver_group_store);
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 9423f3d7e20f..d1c87420edf3 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -5267,7 +5267,6 @@ static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
                 .owner = THIS_MODULE,
                 .name = "qeth",
         },
-        .driver_id = 0xD8C5E3C8,
         .setup = qeth_core_probe_device,
         .remove = qeth_core_remove_device,
         .set_online = qeth_core_set_online,
@@ -5286,7 +5285,6 @@ static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv,
         int err;
 
         err = ccwgroup_create_dev(qeth_core_root_dev,
-                                  qeth_core_ccwgroup_driver.driver_id,
                                   &qeth_core_ccwgroup_driver, 3, buf);
 
         return err ? err : count;