From: Heiko Carstens <hca@linux.ibm.com>
To: Nathan Chancellor <nathan@kernel.org>,
Arnd Bergmann <arnd@arndb.de>, Thomas Huth <thuth@redhat.com>,
Alexandra Winter <wintera@linux.ibm.com>,
Thorsten Winkler <twinkler@linux.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
netdev@vger.kernel.org, llvm@lists.linux.dev,
patches@lists.linux.dev, Sven Schnelle <svens@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>
Subject: [PATCH 2/6] s390/vmlogrdr: Make use of iucv_alloc_device()
Date: Mon, 6 May 2024 21:44:50 +0200 [thread overview]
Message-ID: <20240506194454.1160315-3-hca@linux.ibm.com> (raw)
In-Reply-To: <20240506194454.1160315-1-hca@linux.ibm.com>
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/char/vmlogrdr.c:746:18: error: cast from 'void (*)(const void *)' to 'void (*)(struct device *)' converts to incompatible function type [-Werror,-Wcast-function-type-strict]
746 | 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-v1-1-fd048c9903b0@kernel.org
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---
drivers/s390/char/vmlogrdr.c | 20 +++-----------------
1 file changed, 3 insertions(+), 17 deletions(-)
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index d7e408c8d0b8..c09e1e09fb66 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -728,23 +728,9 @@ static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv)
struct device *dev;
int ret;
- dev = kzalloc(sizeof(struct device), GFP_KERNEL);
- if (dev) {
- dev_set_name(dev, "%s", priv->internal_name);
- dev->bus = &iucv_bus;
- dev->parent = iucv_root;
- dev->driver = &vmlogrdr_driver;
- dev->groups = vmlogrdr_attr_groups;
- dev_set_drvdata(dev, priv);
- /*
- * 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;
- } else
+ dev = iucv_alloc_device(vmlogrdr_attr_groups, &vmlogrdr_driver,
+ priv, priv->internal_name);
+ if (!dev)
return -ENOMEM;
ret = device_register(dev);
if (ret) {
--
2.40.1
next prev parent reply other threads:[~2024-05-06 19:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-06 19:44 [PATCH 0/6] s390: Unify IUCV device allocation Heiko Carstens
2024-05-06 19:44 ` [PATCH 1/6] s390/iucv: Provide iucv_alloc_device() / iucv_release_device() Heiko Carstens
2024-05-06 19:44 ` Heiko Carstens [this message]
2024-05-06 19:44 ` [PATCH 3/6] s390/netiucv: Make use of iucv_alloc_device() Heiko Carstens
2024-05-06 19:44 ` [PATCH 4/6] s390/smsgiucv_app: " Heiko Carstens
2024-05-06 19:44 ` [PATCH 5/6] tty: hvc-iucv: " Heiko Carstens
2024-05-10 10:55 ` Greg Kroah-Hartman
2024-05-06 19:44 ` [PATCH 6/6] s390/iucv: Unexport iucv_root Heiko Carstens
2024-05-07 9:39 ` [PATCH 0/6] s390: Unify IUCV device allocation Alexandra Winter
2024-05-07 12:32 ` Heiko Carstens
2024-05-07 14:33 ` Nathan Chancellor
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