The branch main has been updated by wulf:
URL:
https://cgit.FreeBSD.org/src/commit/?id=04d42cb453888cbda0fb81d38bd722962ca6fc03
commit 04d42cb453888cbda0fb81d38bd722962ca6fc03
Author: Vladimir Kondratyev <w...@freebsd.org>
AuthorDate: 2021-11-23 09:09:42 +0000
Commit: Vladimir Kondratyev <w...@freebsd.org>
CommitDate: 2022-01-10 19:49:37 +0000
LinuxKPI: Implement default sysfs kobject attribute operations
Required by drm-kmod 5.7
MFC after: 1 week
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D33292
---
sys/compat/linuxkpi/common/include/linux/kobject.h | 2 ++
sys/compat/linuxkpi/common/src/linux_compat.c | 30 ++++++++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/sys/compat/linuxkpi/common/include/linux/kobject.h
b/sys/compat/linuxkpi/common/include/linux/kobject.h
index 403ec1495c32..8108375ed07e 100644
--- a/sys/compat/linuxkpi/common/include/linux/kobject.h
+++ b/sys/compat/linuxkpi/common/include/linux/kobject.h
@@ -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,
diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c
b/sys/compat/linuxkpi/common/src/linux_compat.c
index f375196aa72e..70e208da428f 100644
--- a/sys/compat/linuxkpi/common/src/linux_compat.c
+++ b/sys/compat/linuxkpi/common/src/linux_compat.c
@@ -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)
{
