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LinuxKPI: Implement default sysfs kobject attribute operations

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Required by drm-kmod 5.7

MFC after:	1 week
Reviewed by:	hselasky
Differential Revision:	https://reviews.freebsd.org/D33292
This commit is contained in:
Vladimir Kondratyev 2021-11-23 12:09:42 +03:00
parent c427456fd5
commit 04d42cb453
2 changed files with 32 additions and 0 deletions
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2
sys/compat/linuxkpi/common/include/linux/kobject.h
View File

@ -68,6 +68,8 @@ struct attribute {
mode_t mode;
};
extern const struct sysfs_ops kobj_sysfs_ops;
struct kobj_attribute {
struct attribute attr;
ssize_t (*show)(struct kobject *kobj, struct kobj_attribute *attr,

30
sys/compat/linuxkpi/common/src/linux_compat.c
View File

@ -282,6 +282,36 @@ const struct kobj_type linux_kfree_type = {
.release = linux_kobject_kfree
};
static ssize_t
lkpi_kobj_attr_show(struct kobject *kobj, struct attribute *attr, char *buf)
{
struct kobj_attribute *ka =
container_of(attr, struct kobj_attribute, attr);
if (ka->show == NULL)
return (-EIO);
return (ka->show(kobj, ka, buf));
}
static ssize_t
lkpi_kobj_attr_store(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t count)
{
struct kobj_attribute *ka =
container_of(attr, struct kobj_attribute, attr);
if (ka->store == NULL)
return (-EIO);
return (ka->store(kobj, ka, buf, count));
}
const struct sysfs_ops kobj_sysfs_ops = {
.show = lkpi_kobj_attr_show,
.store = lkpi_kobj_attr_store,
};
static void
linux_device_release(struct device *dev)
{