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PCI: endpoint: Make pci_epc_class struct constant

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Now that the driver core allows for struct class to be in read-only
memory, we should make all 'class' structures declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at runtime.

Link: https://lore.kernel.org/linux-pci/2024061011-citable-herbicide-1095@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
This commit is contained in:
Greg Kroah-Hartman 2024-06-10 10:20:12 +02:00 committed by Krzysztof Wilczyński
parent 473b2cf9c4
commit 03377a6989
No known key found for this signature in database
GPG Key ID: 7C64768D3DE334E7
1 changed files with 7 additions and 12 deletions
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19
drivers/pci/endpoint/pci-epc-core.c
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@ -14,7 +14,9 @@
#include <linux/pci-epf.h>
#include <linux/pci-ep-cfs.h>
static struct class *pci_epc_class;
static const struct class pci_epc_class = {
.name = "pci_epc",
};
static void devm_pci_epc_release(struct device *dev, void *res)
{
@ -60,7 +62,7 @@ struct pci_epc *pci_epc_get(const char *epc_name)
struct device *dev;
struct class_dev_iter iter;
class_dev_iter_init(&iter, pci_epc_class, NULL, NULL);
class_dev_iter_init(&iter, &pci_epc_class, NULL, NULL);
while ((dev = class_dev_iter_next(&iter))) {
if (strcmp(epc_name, dev_name(dev)))
continue;
@ -893,7 +895,7 @@ __pci_epc_create(struct device *dev, const struct pci_epc_ops *ops,
INIT_LIST_HEAD(&epc->pci_epf);
device_initialize(&epc->dev);
epc->dev.class = pci_epc_class;
epc->dev.class = &pci_epc_class;
epc->dev.parent = dev;
epc->dev.release = pci_epc_release;
epc->ops = ops;
@ -953,20 +955,13 @@ EXPORT_SYMBOL_GPL(__devm_pci_epc_create);
static int __init pci_epc_init(void)
{
pci_epc_class = class_create("pci_epc");
if (IS_ERR(pci_epc_class)) {
pr_err("failed to create pci epc class --> %ld\n",
PTR_ERR(pci_epc_class));
return PTR_ERR(pci_epc_class);
}
return 0;
return class_register(&pci_epc_class);
}
module_init(pci_epc_init);
static void __exit pci_epc_exit(void)
{
class_destroy(pci_epc_class);
class_unregister(&pci_epc_class);
}
module_exit(pci_epc_exit);