From fd06978b06a2ad99cb6d048617e50869d4081420 Mon Sep 17 00:00:00 2001 From: Ivan Orlov Date: Thu, 10 Aug 2023 23:42:39 +0400 Subject: [PATCH] misc: hpilo: make ilo_class a static const structure Now that the driver core allows for struct class to be in read-only memory, move the ilo_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 Signed-off-by: Ivan Orlov Link: https://lore.kernel.org/r/20230810194239.26892-1-ivan.orlov0322@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/misc/hpilo.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c index 2fde8d6..f1b74d3 100644 --- a/drivers/misc/hpilo.c +++ b/drivers/misc/hpilo.c @@ -25,7 +25,9 @@ #include #include "hpilo.h" -static struct class *ilo_class; +static const struct class ilo_class = { + .name = "iLO", +}; static unsigned int ilo_major; static unsigned int max_ccb = 16; static char ilo_hwdev[MAX_ILO_DEV]; @@ -746,7 +748,7 @@ static void ilo_remove(struct pci_dev *pdev) minor = MINOR(ilo_hw->cdev.dev); for (i = minor; i < minor + max_ccb; i++) - device_destroy(ilo_class, MKDEV(ilo_major, i)); + device_destroy(&ilo_class, MKDEV(ilo_major, i)); cdev_del(&ilo_hw->cdev); ilo_disable_interrupts(ilo_hw); @@ -839,7 +841,7 @@ static int ilo_probe(struct pci_dev *pdev, for (minor = 0 ; minor < max_ccb; minor++) { struct device *dev; - dev = device_create(ilo_class, &pdev->dev, + dev = device_create(&ilo_class, &pdev->dev, MKDEV(ilo_major, minor), NULL, "hpilo!d%dccb%d", devnum, minor); if (IS_ERR(dev)) @@ -882,11 +884,9 @@ static int __init ilo_init(void) int error; dev_t dev; - ilo_class = class_create("iLO"); - if (IS_ERR(ilo_class)) { - error = PTR_ERR(ilo_class); + error = class_register(&ilo_class); + if (error) goto out; - } error = alloc_chrdev_region(&dev, 0, MAX_OPEN, ILO_NAME); if (error) @@ -902,7 +902,7 @@ static int __init ilo_init(void) chr_remove: unregister_chrdev_region(dev, MAX_OPEN); class_destroy: - class_destroy(ilo_class); + class_unregister(&ilo_class); out: return error; } @@ -911,7 +911,7 @@ static void __exit ilo_exit(void) { pci_unregister_driver(&ilo_driver); unregister_chrdev_region(MKDEV(ilo_major, 0), MAX_OPEN); - class_destroy(ilo_class); + class_unregister(&ilo_class); } MODULE_VERSION("1.5.0"); -- 2.7.4