This is a note to let you know that I've just added the patch titled
s390/dasd: Use dev_*() for device log messages
to the 6.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
s390-dasd-use-dev_-for-device-log-messages.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 42f4afb0fd171d1d4e55ad3f699a4d8765a5392d
Author: Jan Höppner <hoeppner@xxxxxxxxxxxxx>
Date: Thu Feb 8 17:42:48 2024 +0100
s390/dasd: Use dev_*() for device log messages
[ Upstream commit 79ae56fc475869d636071f66d9e4ef2a3819eee6 ]
All log messages in dasd.c use the printk variants of pr_*(). They all
add the name of the affected device manually to the log message.
This can be simplified by using the dev_*() variants of printk, which
include the device information and make a separate call to dev_name()
unnecessary.
The KMSG_COMPONENT and the pr_fmt() definition can be dropped. Note that
this removes the "dasd: " prefix from the one pr_info() call in
dasd_init(). However, the log message already provides all relevant
information.
Signed-off-by: Jan Höppner <hoeppner@xxxxxxxxxxxxx>
Reviewed-by: Stefan Haberland <sth@xxxxxxxxxxxxx>
Signed-off-by: Stefan Haberland <sth@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240208164248.540985-10-sth@xxxxxxxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Stable-dep-of: c3116e62ddef ("s390/dasd: fix double module refcount decrement")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 833cfab7d8776..0eac1ae4f4acb 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -8,9 +8,6 @@
* Copyright IBM Corp. 1999, 2009
*/
-#define KMSG_COMPONENT "dasd"
-#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
-
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -3408,8 +3405,7 @@ static void dasd_generic_auto_online(void *data, async_cookie_t cookie)
ret = ccw_device_set_online(cdev);
if (ret)
- pr_warn("%s: Setting the DASD online failed with rc=%d\n",
- dev_name(&cdev->dev), ret);
+ dev_warn(&cdev->dev, "Setting the DASD online failed with rc=%d\n", ret);
}
/*
@@ -3496,8 +3492,11 @@ int dasd_generic_set_online(struct ccw_device *cdev,
{
struct dasd_discipline *discipline;
struct dasd_device *device;
+ struct device *dev;
int rc;
+ dev = &cdev->dev;
+
/* first online clears initial online feature flag */
dasd_set_feature(cdev, DASD_FEATURE_INITIAL_ONLINE, 0);
device = dasd_create_device(cdev);
@@ -3510,11 +3509,10 @@ int dasd_generic_set_online(struct ccw_device *cdev,
/* Try to load the required module. */
rc = request_module(DASD_DIAG_MOD);
if (rc) {
- pr_warn("%s Setting the DASD online failed "
- "because the required module %s "
- "could not be loaded (rc=%d)\n",
- dev_name(&cdev->dev), DASD_DIAG_MOD,
- rc);
+ dev_warn(dev, "Setting the DASD online failed "
+ "because the required module %s "
+ "could not be loaded (rc=%d)\n",
+ DASD_DIAG_MOD, rc);
dasd_delete_device(device);
return -ENODEV;
}
@@ -3522,8 +3520,7 @@ int dasd_generic_set_online(struct ccw_device *cdev,
/* Module init could have failed, so check again here after
* request_module(). */
if (!dasd_diag_discipline_pointer) {
- pr_warn("%s Setting the DASD online failed because of missing DIAG discipline\n",
- dev_name(&cdev->dev));
+ dev_warn(dev, "Setting the DASD online failed because of missing DIAG discipline\n");
dasd_delete_device(device);
return -ENODEV;
}
@@ -3544,8 +3541,8 @@ int dasd_generic_set_online(struct ccw_device *cdev,
/* check_device will allocate block device if necessary */
rc = discipline->check_device(device);
if (rc) {
- pr_warn("%s Setting the DASD online with discipline %s failed with rc=%i\n",
- dev_name(&cdev->dev), discipline->name, rc);
+ dev_warn(dev, "Setting the DASD online with discipline %s failed with rc=%i\n",
+ discipline->name, rc);
module_put(discipline->owner);
module_put(base_discipline->owner);
dasd_delete_device(device);
@@ -3554,16 +3551,15 @@ int dasd_generic_set_online(struct ccw_device *cdev,
dasd_set_target_state(device, DASD_STATE_ONLINE);
if (device->state <= DASD_STATE_KNOWN) {
- pr_warn("%s Setting the DASD online failed because of a missing discipline\n",
- dev_name(&cdev->dev));
+ dev_warn(dev, "Setting the DASD online failed because of a missing discipline\n");
rc = -ENODEV;
dasd_set_target_state(device, DASD_STATE_NEW);
if (device->block)
dasd_free_block(device->block);
dasd_delete_device(device);
- } else
- pr_debug("dasd_generic device %s found\n",
- dev_name(&cdev->dev));
+ } else {
+ dev_dbg(dev, "dasd_generic device found\n");
+ }
wait_event(dasd_init_waitq, _wait_for_device(device));
@@ -3574,10 +3570,13 @@ EXPORT_SYMBOL_GPL(dasd_generic_set_online);
int dasd_generic_set_offline(struct ccw_device *cdev)
{
+ int max_count, open_count, rc;
struct dasd_device *device;
struct dasd_block *block;
- int max_count, open_count, rc;
unsigned long flags;
+ struct device *dev;
+
+ dev = &cdev->dev;
rc = 0;
spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
@@ -3598,11 +3597,10 @@ int dasd_generic_set_offline(struct ccw_device *cdev)
open_count = atomic_read(&device->block->open_count);
if (open_count > max_count) {
if (open_count > 0)
- pr_warn("%s: The DASD cannot be set offline with open count %i\n",
- dev_name(&cdev->dev), open_count);
+ dev_warn(dev, "The DASD cannot be set offline with open count %i\n",
+ open_count);
else
- pr_warn("%s: The DASD cannot be set offline while it is in use\n",
- dev_name(&cdev->dev));
+ dev_warn(dev, "The DASD cannot be set offline while it is in use\n");
rc = -EBUSY;
goto out_err;
}
@@ -3962,8 +3960,8 @@ static int dasd_handle_autoquiesce(struct dasd_device *device,
if (dasd_eer_enabled(device))
dasd_eer_write(device, NULL, DASD_EER_AUTOQUIESCE);
- pr_info("%s: The DASD has been put in the quiesce state\n",
- dev_name(&device->cdev->dev));
+ dev_info(&device->cdev->dev,
+ "The DASD has been put in the quiesce state\n");
dasd_device_set_stop_bits(device, DASD_STOPPED_QUIESCE);
if (device->features & DASD_FEATURE_REQUEUEQUIESCE)
