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nfc: core: make nfc_class constant

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Since commit 43a7206b09 ("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 nfc_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240302-class_cleanup-net-next-v1-6-8fa378595b93@marliere.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ricardo B. Marliere 2024-03-02 14:06:02 -03:00 committed by Jakub Kicinski
parent 070bef83f0
commit e556001169
2 changed files with 2 additions and 2 deletions
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2
include/net/nfc/nfc.h
View file

@ -196,7 +196,7 @@ struct nfc_dev {
};
#define to_nfc_dev(_dev) container_of(_dev, struct nfc_dev, dev)
extern struct class nfc_class;
extern const struct class nfc_class;
struct nfc_dev *nfc_allocate_device(const struct nfc_ops *ops,
u32 supported_protocols,

2
net/nfc/core.c
View file

@ -1015,7 +1015,7 @@ static void nfc_check_pres_timeout(struct timer_list *t)
schedule_work(&dev->check_pres_work);
}
struct class nfc_class = {
const struct class nfc_class = {
.name = "nfc",
.dev_release = nfc_release,
};