git: 80446fc7b5e5 - main - linuxkpi: Move `struct kobject` code to `linux_kobject.c`
Date: Wed, 13 Dec 2023 18:28:45 UTC
The branch main has been updated by dumbbell:
URL: https://cgit.FreeBSD.org/src/commit/?id=80446fc7b5e5d22e2bac28bc0474dbe2fec83e43
commit 80446fc7b5e5d22e2bac28bc0474dbe2fec83e43
Author: Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
AuthorDate: 2023-12-08 17:58:03 +0000
Commit: Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
CommitDate: 2023-12-13 18:18:46 +0000
linuxkpi: Move `struct kobject` code to `linux_kobject.c`
[Why]
`linux_compat.c` is already too long. I will need to add `struct kset`
in a follow-up commit, so let's move the existing `struct kobject` code
to its own file.
Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D43019
---
sys/compat/linuxkpi/common/include/linux/kobject.h | 2 +
sys/compat/linuxkpi/common/src/linux_compat.c | 190 ------------------
sys/compat/linuxkpi/common/src/linux_kobject.c | 221 +++++++++++++++++++++
sys/conf/files | 2 +
sys/modules/linuxkpi/Makefile | 1 +
5 files changed, 226 insertions(+), 190 deletions(-)
diff --git a/sys/compat/linuxkpi/common/include/linux/kobject.h b/sys/compat/linuxkpi/common/include/linux/kobject.h
index 6e59e0952d62..06d71faaa873 100644
--- a/sys/compat/linuxkpi/common/include/linux/kobject.h
+++ b/sys/compat/linuxkpi/common/include/linux/kobject.h
@@ -154,4 +154,6 @@ kobject_uevent_env(struct kobject *kobj, int action, char *envp[])
*/
}
+void linux_kobject_kfree_name(struct kobject *kobj);
+
#endif /* _LINUXKPI_LINUX_KOBJECT_H_ */
diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c b/sys/compat/linuxkpi/common/src/linux_compat.c
index b913ae602ab3..a493dc2538ec 100644
--- a/sys/compat/linuxkpi/common/src/linux_compat.c
+++ b/sys/compat/linuxkpi/common/src/linux_compat.c
@@ -159,176 +159,6 @@ RB_GENERATE(linux_root, rb_node, __entry, panic_cmp);
INTERVAL_TREE_DEFINE(struct interval_tree_node, rb, unsigned long,, START,
LAST,, lkpi_interval_tree)
-struct kobject *
-kobject_create(void)
-{
- struct kobject *kobj;
-
- kobj = kzalloc(sizeof(*kobj), GFP_KERNEL);
- if (kobj == NULL)
- return (NULL);
- kobject_init(kobj, &linux_kfree_type);
-
- return (kobj);
-}
-
-
-int
-kobject_set_name_vargs(struct kobject *kobj, const char *fmt, va_list args)
-{
- va_list tmp_va;
- int len;
- char *old;
- char *name;
- char dummy;
-
- old = kobj->name;
-
- if (old && fmt == NULL)
- return (0);
-
- /* compute length of string */
- va_copy(tmp_va, args);
- len = vsnprintf(&dummy, 0, fmt, tmp_va);
- va_end(tmp_va);
-
- /* account for zero termination */
- len++;
-
- /* check for error */
- if (len < 1)
- return (-EINVAL);
-
- /* allocate memory for string */
- name = kzalloc(len, GFP_KERNEL);
- if (name == NULL)
- return (-ENOMEM);
- vsnprintf(name, len, fmt, args);
- kobj->name = name;
-
- /* free old string */
- kfree(old);
-
- /* filter new string */
- for (; *name != '\0'; name++)
- if (*name == '/')
- *name = '!';
- return (0);
-}
-
-int
-kobject_set_name(struct kobject *kobj, const char *fmt, ...)
-{
- va_list args;
- int error;
-
- va_start(args, fmt);
- error = kobject_set_name_vargs(kobj, fmt, args);
- va_end(args);
-
- return (error);
-}
-
-static int
-kobject_add_complete(struct kobject *kobj, struct kobject *parent)
-{
- const struct kobj_type *t;
- int error;
-
- kobj->parent = parent;
- error = sysfs_create_dir(kobj);
- if (error == 0 && kobj->ktype && kobj->ktype->default_attrs) {
- struct attribute **attr;
- t = kobj->ktype;
-
- for (attr = t->default_attrs; *attr != NULL; attr++) {
- error = sysfs_create_file(kobj, *attr);
- if (error)
- break;
- }
- if (error)
- sysfs_remove_dir(kobj);
- }
- return (error);
-}
-
-int
-kobject_add(struct kobject *kobj, struct kobject *parent, const char *fmt, ...)
-{
- va_list args;
- int error;
-
- va_start(args, fmt);
- error = kobject_set_name_vargs(kobj, fmt, args);
- va_end(args);
- if (error)
- return (error);
-
- return kobject_add_complete(kobj, parent);
-}
-
-void
-linux_kobject_release(struct kref *kref)
-{
- struct kobject *kobj;
- char *name;
-
- kobj = container_of(kref, struct kobject, kref);
- sysfs_remove_dir(kobj);
- name = kobj->name;
- if (kobj->ktype && kobj->ktype->release)
- kobj->ktype->release(kobj);
- kfree(name);
-}
-
-static void
-linux_kobject_kfree(struct kobject *kobj)
-{
- kfree(kobj);
-}
-
-static void
-linux_kobject_kfree_name(struct kobject *kobj)
-{
- if (kobj) {
- kfree(kobj->name);
- }
-}
-
-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)
{
@@ -518,26 +348,6 @@ class_create(struct module *owner, const char *name)
return (class);
}
-int
-kobject_init_and_add(struct kobject *kobj, const struct kobj_type *ktype,
- struct kobject *parent, const char *fmt, ...)
-{
- va_list args;
- int error;
-
- kobject_init(kobj, ktype);
- kobj->ktype = ktype;
- kobj->parent = parent;
- kobj->name = NULL;
-
- va_start(args, fmt);
- error = kobject_set_name_vargs(kobj, fmt, args);
- va_end(args);
- if (error)
- return (error);
- return kobject_add_complete(kobj, parent);
-}
-
static void
linux_kq_lock(void *arg)
{
diff --git a/sys/compat/linuxkpi/common/src/linux_kobject.c b/sys/compat/linuxkpi/common/src/linux_kobject.c
new file mode 100644
index 000000000000..ddd0a58660f1
--- /dev/null
+++ b/sys/compat/linuxkpi/common/src/linux_kobject.c
@@ -0,0 +1,221 @@
+/*-
+ * Copyright (c) 2010 Isilon Systems, Inc.
+ * Copyright (c) 2010 iX Systems, Inc.
+ * Copyright (c) 2010 Panasas, Inc.
+ * Copyright (c) 2013-2021 Mellanox Technologies, Ltd.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice unmodified, this list of conditions, and the following
+ * disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
+
+struct kobject *
+kobject_create(void)
+{
+ struct kobject *kobj;
+
+ kobj = kzalloc(sizeof(*kobj), GFP_KERNEL);
+ if (kobj == NULL)
+ return (NULL);
+ kobject_init(kobj, &linux_kfree_type);
+
+ return (kobj);
+}
+
+
+int
+kobject_set_name_vargs(struct kobject *kobj, const char *fmt, va_list args)
+{
+ va_list tmp_va;
+ int len;
+ char *old;
+ char *name;
+ char dummy;
+
+ old = kobj->name;
+
+ if (old && fmt == NULL)
+ return (0);
+
+ /* compute length of string */
+ va_copy(tmp_va, args);
+ len = vsnprintf(&dummy, 0, fmt, tmp_va);
+ va_end(tmp_va);
+
+ /* account for zero termination */
+ len++;
+
+ /* check for error */
+ if (len < 1)
+ return (-EINVAL);
+
+ /* allocate memory for string */
+ name = kzalloc(len, GFP_KERNEL);
+ if (name == NULL)
+ return (-ENOMEM);
+ vsnprintf(name, len, fmt, args);
+ kobj->name = name;
+
+ /* free old string */
+ kfree(old);
+
+ /* filter new string */
+ for (; *name != '\0'; name++)
+ if (*name == '/')
+ *name = '!';
+ return (0);
+}
+
+int
+kobject_set_name(struct kobject *kobj, const char *fmt, ...)
+{
+ va_list args;
+ int error;
+
+ va_start(args, fmt);
+ error = kobject_set_name_vargs(kobj, fmt, args);
+ va_end(args);
+
+ return (error);
+}
+
+static int
+kobject_add_complete(struct kobject *kobj, struct kobject *parent)
+{
+ const struct kobj_type *t;
+ int error;
+
+ kobj->parent = parent;
+ error = sysfs_create_dir(kobj);
+ if (error == 0 && kobj->ktype && kobj->ktype->default_attrs) {
+ struct attribute **attr;
+ t = kobj->ktype;
+
+ for (attr = t->default_attrs; *attr != NULL; attr++) {
+ error = sysfs_create_file(kobj, *attr);
+ if (error)
+ break;
+ }
+ if (error)
+ sysfs_remove_dir(kobj);
+ }
+ return (error);
+}
+
+int
+kobject_add(struct kobject *kobj, struct kobject *parent, const char *fmt, ...)
+{
+ va_list args;
+ int error;
+
+ va_start(args, fmt);
+ error = kobject_set_name_vargs(kobj, fmt, args);
+ va_end(args);
+ if (error)
+ return (error);
+
+ return kobject_add_complete(kobj, parent);
+}
+
+int
+kobject_init_and_add(struct kobject *kobj, const struct kobj_type *ktype,
+ struct kobject *parent, const char *fmt, ...)
+{
+ va_list args;
+ int error;
+
+ kobject_init(kobj, ktype);
+ kobj->ktype = ktype;
+ kobj->parent = parent;
+ kobj->name = NULL;
+
+ va_start(args, fmt);
+ error = kobject_set_name_vargs(kobj, fmt, args);
+ va_end(args);
+ if (error)
+ return (error);
+ return kobject_add_complete(kobj, parent);
+}
+
+void
+linux_kobject_release(struct kref *kref)
+{
+ struct kobject *kobj;
+ char *name;
+
+ kobj = container_of(kref, struct kobject, kref);
+ sysfs_remove_dir(kobj);
+ name = kobj->name;
+ if (kobj->ktype && kobj->ktype->release)
+ kobj->ktype->release(kobj);
+ kfree(name);
+}
+
+static void
+linux_kobject_kfree(struct kobject *kobj)
+{
+ kfree(kobj);
+}
+
+const struct kobj_type linux_kfree_type = {
+ .release = linux_kobject_kfree
+};
+
+void
+linux_kobject_kfree_name(struct kobject *kobj)
+{
+ if (kobj) {
+ kfree(kobj->name);
+ }
+}
+
+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,
+};
diff --git a/sys/conf/files b/sys/conf/files
index 377d65926462..bf951d789de3 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -4567,6 +4567,8 @@ compat/linuxkpi/common/src/linux_i2cbb.c optional compat_linuxkpi \
compile-with "${LINUXKPI_C}"
compat/linuxkpi/common/src/linux_interrupt.c optional compat_linuxkpi \
compile-with "${LINUXKPI_C}"
+compat/linuxkpi/common/src/linux_kobject.c optional compat_linuxkpi \
+ compile-with "${LINUXKPI_C}"
compat/linuxkpi/common/src/linux_kthread.c optional compat_linuxkpi \
compile-with "${LINUXKPI_C}"
compat/linuxkpi/common/src/linux_lock.c optional compat_linuxkpi \
diff --git a/sys/modules/linuxkpi/Makefile b/sys/modules/linuxkpi/Makefile
index bf40d64de9df..692f69c1f4e1 100644
--- a/sys/modules/linuxkpi/Makefile
+++ b/sys/modules/linuxkpi/Makefile
@@ -14,6 +14,7 @@ SRCS= linux_compat.c \
linux_i2c.c \
linux_i2cbb.c \
linux_kmod.c \
+ linux_kobject.c \
linux_kthread.c \
linux_lock.c \
linux_netdev.c \