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s390/netiucv: Make use of iucv_alloc_device()

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Make use of iucv_alloc_device() to get rid of quite some code. In addition
this also removes a cast to an incompatible function (clang W=1):

  drivers/s390/net/netiucv.c:1716:18: error: cast from 'void (*)(const void *)' to 'void (*)(struct device *)' converts to incompatible function type [-Werror,-Wcast-function-type-strict]
   1716 |                 dev->release = (void (*)(struct device *))kfree;
        |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://lore.kernel.org/r/20240417-s390-drivers-fix-cast-function-type-v1-3-fd048c9903b0@kernel.org
Acked-by: Alexandra Winter <wintera@linux.ibm.com>
Link: https://lore.kernel.org/r/20240506194454.1160315-4-hca@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2024-05-06 21:44:51 +02:00 committed by Alexander Gordeev
parent 4ee55c9563
commit 968bfb566d
1 changed files with 4 additions and 16 deletions
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20
drivers/s390/net/netiucv.c
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@ -1696,26 +1696,14 @@ static const struct attribute_group *netiucv_attr_groups[] = {
static int netiucv_register_device(struct net_device *ndev)
{
struct netiucv_priv *priv = netdev_priv(ndev);
struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL);
struct device *dev;
int ret;
IUCV_DBF_TEXT(trace, 3, __func__);
if (dev) {
dev_set_name(dev, "net%s", ndev->name);
dev->bus = &iucv_bus;
dev->parent = iucv_root;
dev->groups = netiucv_attr_groups;
/*
* The release function could be called after the
* module has been unloaded. It's _only_ task is to
* free the struct. Therefore, we specify kfree()
* directly here. (Probably a little bit obfuscating
* but legitime ...).
*/
dev->release = (void (*)(struct device *))kfree;
dev->driver = &netiucv_driver;
} else
dev = iucv_alloc_device(netiucv_attr_groups, &netiucv_driver, NULL,
"net%s", ndev->name);
if (!dev)
return -ENOMEM;
ret = device_register(dev);