s390/scm_drv: extend notify callback
Extend the notify callback of scm_driver by an event parameter
to allow to distinguish between different notifications.
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index 8d48471..a4a1ea4 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -96,11 +96,13 @@
#define OP_STATE_TEMP_ERR 2
#define OP_STATE_PERM_ERR 3
+enum scm_event {SCM_CHANGE};
+
struct scm_driver {
struct device_driver drv;
int (*probe) (struct scm_device *scmdev);
int (*remove) (struct scm_device *scmdev);
- void (*notify) (struct scm_device *scmdev);
+ void (*notify) (struct scm_device *scmdev, enum scm_event event);
void (*handler) (struct scm_device *scmdev, void *data, int error);
};
diff --git a/drivers/s390/block/scm_drv.c b/drivers/s390/block/scm_drv.c
index 9fa0a90..ff8558c 100644
--- a/drivers/s390/block/scm_drv.c
+++ b/drivers/s390/block/scm_drv.c
@@ -13,12 +13,16 @@
#include <asm/eadm.h>
#include "scm_blk.h"
-static void notify(struct scm_device *scmdev)
+static void scm_notify(struct scm_device *scmdev, enum scm_event event)
{
- pr_info("%lu: The capabilities of the SCM increment changed\n",
- (unsigned long) scmdev->address);
- SCM_LOG(2, "State changed");
- SCM_LOG_STATE(2, scmdev);
+ switch (event) {
+ case SCM_CHANGE:
+ pr_info("%lu: The capabilities of the SCM increment changed\n",
+ (unsigned long) scmdev->address);
+ SCM_LOG(2, "State changed");
+ SCM_LOG_STATE(2, scmdev);
+ break;
+ }
}
static int scm_probe(struct scm_device *scmdev)
@@ -64,7 +68,7 @@
.name = "scm_block",
.owner = THIS_MODULE,
},
- .notify = notify,
+ .notify = scm_notify,
.probe = scm_probe,
.remove = scm_remove,
.handler = scm_blk_irq,
diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c
index bcf20f3..31ac264 100644
--- a/drivers/s390/cio/scm.c
+++ b/drivers/s390/cio/scm.c
@@ -211,7 +211,7 @@
goto out;
scmdrv = to_scm_drv(scmdev->dev.driver);
if (changed && scmdrv->notify)
- scmdrv->notify(scmdev);
+ scmdrv->notify(scmdev, SCM_CHANGE);
out:
device_unlock(&scmdev->dev);
if (changed)