From: "Ricardo B. Marliere" <ricardo@marliere.net>
To: Yisen Zhuang <yisen.zhuang@huawei.com>,
Salil Mehta <salil.mehta@huawei.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Loic Poulain <loic.poulain@linaro.org>,
Sergey Ryazanov <ryazanov.s.a@gmail.com>,
Johannes Berg <johannes@sipsolutions.net>,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-ppp@vger.kernel.org,
"Ricardo B. Marliere" <ricardo@marliere.net>
Subject: [PATCH net-next 1/6] net: hns: make hnae_class constant
Date: Sat, 02 Mar 2024 14:05:57 -0300 [thread overview]
Message-ID: <20240302-class_cleanup-net-next-v1-1-8fa378595b93@marliere.net> (raw)
In-Reply-To: <20240302-class_cleanup-net-next-v1-0-8fa378595b93@marliere.net>
Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the hnae_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
drivers/net/ethernet/hisilicon/hns/hnae.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.c b/drivers/net/ethernet/hisilicon/hns/hnae.c
index 8a1027ad340d..d4293f76d69d 100644
--- a/drivers/net/ethernet/hisilicon/hns/hnae.c
+++ b/drivers/net/ethernet/hisilicon/hns/hnae.c
@@ -12,7 +12,9 @@
#define cls_to_ae_dev(dev) container_of(dev, struct hnae_ae_dev, cls_dev)
-static struct class *hnae_class;
+static const struct class hnae_class = {
+ .name = "hnae",
+};
static void
hnae_list_add(spinlock_t *lock, struct list_head *node, struct list_head *head)
@@ -111,7 +113,7 @@ static struct hnae_ae_dev *find_ae(const struct fwnode_handle *fwnode)
WARN_ON(!fwnode);
- dev = class_find_device(hnae_class, NULL, fwnode, __ae_match);
+ dev = class_find_device(&hnae_class, NULL, fwnode, __ae_match);
return dev ? cls_to_ae_dev(dev) : NULL;
}
@@ -415,7 +417,7 @@ int hnae_ae_register(struct hnae_ae_dev *hdev, struct module *owner)
hdev->owner = owner;
hdev->id = (int)atomic_inc_return(&id);
hdev->cls_dev.parent = hdev->dev;
- hdev->cls_dev.class = hnae_class;
+ hdev->cls_dev.class = &hnae_class;
hdev->cls_dev.release = hnae_release;
(void)dev_set_name(&hdev->cls_dev, "hnae%d", hdev->id);
ret = device_register(&hdev->cls_dev);
@@ -448,13 +450,12 @@ EXPORT_SYMBOL(hnae_ae_unregister);
static int __init hnae_init(void)
{
- hnae_class = class_create("hnae");
- return PTR_ERR_OR_ZERO(hnae_class);
+ return class_register(&hnae_class);
}
static void __exit hnae_exit(void)
{
- class_destroy(hnae_class);
+ class_unregister(&hnae_class);
}
subsys_initcall(hnae_init);
--
2.43.0
next prev parent reply other threads:[~2024-03-02 17:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-02 17:05 [PATCH net-next 0/6] net: constify struct class usage Ricardo B. Marliere
2024-03-02 17:05 ` Ricardo B. Marliere [this message]
2024-03-04 17:52 ` [PATCH net-next 1/6] net: hns: make hnae_class constant Simon Horman
2024-03-02 17:05 ` [PATCH net-next 2/6] net: wan: framer: make framer_class constant Ricardo B. Marliere
2024-03-04 17:52 ` Simon Horman
2024-03-05 7:17 ` Herve Codina
2024-03-02 17:05 ` [PATCH net-next 3/6] net: ppp: make ppp_class constant Ricardo B. Marliere
2024-03-04 17:53 ` Simon Horman
2024-03-04 20:19 ` Breno Leitao
2024-03-02 17:06 ` [PATCH net-next 4/6] net: wwan: hwsim: make wwan_hwsim_class constant Ricardo B. Marliere
2024-03-02 17:06 ` [PATCH net-next 5/6] net: wwan: core: make wwan_class constant Ricardo B. Marliere
2024-03-02 17:06 ` [PATCH net-next 6/6] nfc: core: make nfc_class constant Ricardo B. Marliere
2024-03-04 17:53 ` Simon Horman
2024-03-04 20:19 ` Breno Leitao
2024-03-05 20:00 ` [PATCH net-next 0/6] net: constify struct class usage patchwork-bot+netdevbpf
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