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* [PATCH 0/2] s390/dasd: cleanup patches
@ 2021-03-16  9:45 Stefan Haberland
  2021-03-16  9:45 ` [PATCH 1/2] s390/dasd: remove dasd_fba_probe() wrapper Stefan Haberland
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Stefan Haberland @ 2021-03-16  9:45 UTC (permalink / raw)
  To: Jens Axboe
  Cc: linux-block, Jan Hoeppner, linux-s390, Heiko Carstens,
	Vasily Gorbik, Christian Borntraeger, Julian Wiedmann

Hi Jens,

please apply the following DASD cleanup patches for 5.13.
They apply on you for-next branch.

Best regards,
Stefan

Julian Wiedmann (2):
  s390/dasd: remove dasd_fba_probe() wrapper
  s390/dasd: let driver core manage the sysfs attributes

 drivers/s390/block/dasd.c        | 17 ++---------------
 drivers/s390/block/dasd_devmap.c | 15 ++-------------
 drivers/s390/block/dasd_eckd.c   |  1 +
 drivers/s390/block/dasd_fba.c    | 10 ++--------
 drivers/s390/block/dasd_int.h    |  3 +--
 5 files changed, 8 insertions(+), 38 deletions(-)

-- 
2.25.1


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH 1/2] s390/dasd: remove dasd_fba_probe() wrapper
  2021-03-16  9:45 [PATCH 0/2] s390/dasd: cleanup patches Stefan Haberland
@ 2021-03-16  9:45 ` Stefan Haberland
  2021-03-16  9:45 ` [PATCH 2/2] s390/dasd: let driver core manage the sysfs attributes Stefan Haberland
  2021-03-16 14:31 ` [PATCH 0/2] s390/dasd: cleanup patches Jens Axboe
  2 siblings, 0 replies; 4+ messages in thread
From: Stefan Haberland @ 2021-03-16  9:45 UTC (permalink / raw)
  To: Jens Axboe
  Cc: linux-block, Jan Hoeppner, linux-s390, Heiko Carstens,
	Vasily Gorbik, Christian Borntraeger, Julian Wiedmann

From: Julian Wiedmann <jwi@linux.ibm.com>

commit e03c5941f904 ("s390/dasd: Remove unused parameter from
dasd_generic_probe()") allows us to wire the generic callback up
directly, avoiding the additional level of indirection.

While at it also remove the forward declaration for the dasd_fba_driver
struct, it's no longer needed.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>

---
 drivers/s390/block/dasd_fba.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 1aeb68794ce8..f76fe05b66c6 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -54,13 +54,6 @@ static struct ccw_device_id dasd_fba_ids[] = {
 
 MODULE_DEVICE_TABLE(ccw, dasd_fba_ids);
 
-static struct ccw_driver dasd_fba_driver; /* see below */
-static int
-dasd_fba_probe(struct ccw_device *cdev)
-{
-	return dasd_generic_probe(cdev);
-}
-
 static int
 dasd_fba_set_online(struct ccw_device *cdev)
 {
@@ -73,7 +66,7 @@ static struct ccw_driver dasd_fba_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.ids         = dasd_fba_ids,
-	.probe       = dasd_fba_probe,
+	.probe       = dasd_generic_probe,
 	.remove      = dasd_generic_remove,
 	.set_offline = dasd_generic_set_offline,
 	.set_online  = dasd_fba_set_online,
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH 2/2] s390/dasd: let driver core manage the sysfs attributes
  2021-03-16  9:45 [PATCH 0/2] s390/dasd: cleanup patches Stefan Haberland
  2021-03-16  9:45 ` [PATCH 1/2] s390/dasd: remove dasd_fba_probe() wrapper Stefan Haberland
@ 2021-03-16  9:45 ` Stefan Haberland
  2021-03-16 14:31 ` [PATCH 0/2] s390/dasd: cleanup patches Jens Axboe
  2 siblings, 0 replies; 4+ messages in thread
From: Stefan Haberland @ 2021-03-16  9:45 UTC (permalink / raw)
  To: Jens Axboe
  Cc: linux-block, Jan Hoeppner, linux-s390, Heiko Carstens,
	Vasily Gorbik, Christian Borntraeger, Julian Wiedmann

From: Julian Wiedmann <jwi@linux.ibm.com>

Wire up device_driver->dev_groups, so that really_probe() creates the
sysfs attributes for us automatically.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>

---
 drivers/s390/block/dasd.c        | 17 ++---------------
 drivers/s390/block/dasd_devmap.c | 15 ++-------------
 drivers/s390/block/dasd_eckd.c   |  1 +
 drivers/s390/block/dasd_fba.c    |  1 +
 drivers/s390/block/dasd_int.h    |  3 +--
 5 files changed, 7 insertions(+), 30 deletions(-)

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index ba9ce4e0d30a..a446f7c1ec68 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -3440,15 +3440,6 @@ static void dasd_generic_auto_online(void *data, async_cookie_t cookie)
  */
 int dasd_generic_probe(struct ccw_device *cdev)
 {
-	int ret;
-
-	ret = dasd_add_sysfs_files(cdev);
-	if (ret) {
-		DBF_EVENT_DEVID(DBF_WARNING, cdev, "%s",
-				"dasd_generic_probe: could not add "
-				"sysfs entries");
-		return ret;
-	}
 	cdev->handler = &dasd_int_handler;
 
 	/*
@@ -3489,15 +3480,13 @@ void dasd_generic_remove(struct ccw_device *cdev)
 	struct dasd_block *block;
 
 	device = dasd_device_from_cdev(cdev);
-	if (IS_ERR(device)) {
-		dasd_remove_sysfs_files(cdev);
+	if (IS_ERR(device))
 		return;
-	}
+
 	if (test_and_set_bit(DASD_FLAG_OFFLINE, &device->flags) &&
 	    !test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) {
 		/* Already doing offline processing */
 		dasd_put_device(device);
-		dasd_remove_sysfs_files(cdev);
 		return;
 	}
 	/*
@@ -3516,8 +3505,6 @@ void dasd_generic_remove(struct ccw_device *cdev)
 	 */
 	if (block)
 		dasd_free_block(block);
-
-	dasd_remove_sysfs_files(cdev);
 }
 EXPORT_SYMBOL_GPL(dasd_generic_remove);
 
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index 03d27ee9cac6..2c40fe15da55 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -1772,12 +1772,13 @@ static const struct attribute_group ext_pool_attr_group = {
 	.attrs = ext_pool_attrs,
 };
 
-static const struct attribute_group *dasd_attr_groups[] = {
+const struct attribute_group *dasd_dev_groups[] = {
 	&dasd_attr_group,
 	&capacity_attr_group,
 	&ext_pool_attr_group,
 	NULL,
 };
+EXPORT_SYMBOL_GPL(dasd_dev_groups);
 
 /*
  * Return value of the specified feature.
@@ -1895,18 +1896,6 @@ void dasd_path_remove_kobjects(struct dasd_device *device)
 }
 EXPORT_SYMBOL(dasd_path_remove_kobjects);
 
-int dasd_add_sysfs_files(struct ccw_device *cdev)
-{
-	return sysfs_create_groups(&cdev->dev.kobj, dasd_attr_groups);
-}
-
-void
-dasd_remove_sysfs_files(struct ccw_device *cdev)
-{
-	sysfs_remove_groups(&cdev->dev.kobj, dasd_attr_groups);
-}
-
-
 int
 dasd_devmap_init(void)
 {
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 65eb87cbbb9b..a6ac505cbdd7 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -6630,6 +6630,7 @@ static struct ccw_driver dasd_eckd_driver = {
 	.driver = {
 		.name	= "dasd-eckd",
 		.owner	= THIS_MODULE,
+		.dev_groups = dasd_dev_groups,
 	},
 	.ids	     = dasd_eckd_ids,
 	.probe	     = dasd_eckd_probe,
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index f76fe05b66c6..4789410885e4 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -64,6 +64,7 @@ static struct ccw_driver dasd_fba_driver = {
 	.driver = {
 		.name	= "dasd-fba",
 		.owner	= THIS_MODULE,
+		.dev_groups = dasd_dev_groups,
 	},
 	.ids         = dasd_fba_ids,
 	.probe       = dasd_generic_probe,
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index b8a04c42d1d2..1c59b0e86a9f 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -854,8 +854,7 @@ void dasd_delete_device(struct dasd_device *);
 int dasd_get_feature(struct ccw_device *, int);
 int dasd_set_feature(struct ccw_device *, int, int);
 
-int dasd_add_sysfs_files(struct ccw_device *);
-void dasd_remove_sysfs_files(struct ccw_device *);
+extern const struct attribute_group *dasd_dev_groups[];
 void dasd_path_create_kobj(struct dasd_device *, int);
 void dasd_path_create_kobjects(struct dasd_device *);
 void dasd_path_remove_kobjects(struct dasd_device *);
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH 0/2] s390/dasd: cleanup patches
  2021-03-16  9:45 [PATCH 0/2] s390/dasd: cleanup patches Stefan Haberland
  2021-03-16  9:45 ` [PATCH 1/2] s390/dasd: remove dasd_fba_probe() wrapper Stefan Haberland
  2021-03-16  9:45 ` [PATCH 2/2] s390/dasd: let driver core manage the sysfs attributes Stefan Haberland
@ 2021-03-16 14:31 ` Jens Axboe
  2 siblings, 0 replies; 4+ messages in thread
From: Jens Axboe @ 2021-03-16 14:31 UTC (permalink / raw)
  To: Stefan Haberland
  Cc: linux-block, Jan Hoeppner, linux-s390, Heiko Carstens,
	Vasily Gorbik, Christian Borntraeger, Julian Wiedmann

On 3/16/21 3:45 AM, Stefan Haberland wrote:
> Hi Jens,
> 
> please apply the following DASD cleanup patches for 5.13.
> They apply on you for-next branch.

Applied, thanks.

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-03-16 14:32 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2021-03-16  9:45 [PATCH 0/2] s390/dasd: cleanup patches Stefan Haberland
2021-03-16  9:45 ` [PATCH 1/2] s390/dasd: remove dasd_fba_probe() wrapper Stefan Haberland
2021-03-16  9:45 ` [PATCH 2/2] s390/dasd: let driver core manage the sysfs attributes Stefan Haberland
2021-03-16 14:31 ` [PATCH 0/2] s390/dasd: cleanup patches Jens Axboe

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