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accel: make accel_class a static const structure

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Now that the driver core allows for struct class to be in read-only
memory, move the accel_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: dri-devel@lists.freedesktop.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Ivan Orlov 2023-06-20 20:25:29 +02:00 committed by Oded Gabbay
parent d33c3d0541
commit e11a7d2ca5
1 changed files with 8 additions and 13 deletions
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21
drivers/accel/drm_accel.c
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@ -21,7 +21,6 @@ static DEFINE_SPINLOCK(accel_minor_lock);
static struct idr accel_minors_idr;
static struct dentry *accel_debugfs_root;
static struct class *accel_class;
static struct device_type accel_sysfs_device_minor = {
.name = "accel_minor"
@ -32,23 +31,19 @@ static char *accel_devnode(const struct device *dev, umode_t *mode)
return kasprintf(GFP_KERNEL, "accel/%s", dev_name(dev));
}
static const struct class accel_class = {
.name = "accel",
.devnode = accel_devnode,
};
static int accel_sysfs_init(void)
{
accel_class = class_create("accel");
if (IS_ERR(accel_class))
return PTR_ERR(accel_class);
accel_class->devnode = accel_devnode;
return 0;
return class_register(&accel_class);
}
static void accel_sysfs_destroy(void)
{
if (IS_ERR_OR_NULL(accel_class))
return;
class_destroy(accel_class);
accel_class = NULL;
class_unregister(&accel_class);
}
static int accel_name_info(struct seq_file *m, void *data)
@ -117,7 +112,7 @@ void accel_debugfs_register(struct drm_device *dev)
void accel_set_device_instance_params(struct device *kdev, int index)
{
kdev->devt = MKDEV(ACCEL_MAJOR, index);
kdev->class = accel_class;
kdev->class = &accel_class;
kdev->type = &accel_sysfs_device_minor;
}