git: 523d17b26290 - stable/13 - LinuxKPI: add utsname for init_utsname() with release

The branch stable/13 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=523d17b262905c8dab686025edc337d91c0f3a86

commit 523d17b262905c8dab686025edc337d91c0f3a86
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2023-05-23 23:12:47 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2023-06-26 09:20:21 +0000

    LinuxKPI: add utsname for init_utsname() with release
    
    A wireless dirver is requesting release from the result of
    init_utsname().  Populate the field on startup.
    
    Reviewed by:    emaste
    Differential Revision: https://reviews.freebsd.org/D40248
    
    (cherry picked from commit ad513b4dba3e330b6f2714bdde4d864898c4222e)
---
 sys/compat/linuxkpi/common/include/linux/utsname.h | 51 ++++++++++++++++++++++
 sys/compat/linuxkpi/common/src/linux_compat.c      |  4 ++
 2 files changed, 55 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/utsname.h b/sys/compat/linuxkpi/common/include/linux/utsname.h
new file mode 100644
index 000000000000..1f7f4b7f4289
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/linux/utsname.h
@@ -0,0 +1,51 @@
+/*-
+ * Copyright (c) 2023 Bjoern A. Zeeb
+ *
+ * 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, 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef	_LINUXKPI_LINUX_UTSNAME_H
+#define	_LINUXKPI_LINUX_UTSNAME_H
+
+#include <sys/types.h>
+#include <sys/jail.h>
+
+struct _utsname {
+	char			release[OSRELEASELEN];
+};
+
+struct uts_namespace {
+	struct _utsname		name;
+};
+
+extern struct uts_namespace init_uts_ns;
+
+static inline struct _utsname *
+init_utsname(void)
+{
+
+	return &init_uts_ns.name;
+}
+
+#endif	/* _LINUXKPI_LINUX_UTSNAME_H */
diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c b/sys/compat/linuxkpi/common/src/linux_compat.c
index 4ceb33c348f6..dce3cdcc2de3 100644
--- a/sys/compat/linuxkpi/common/src/linux_compat.c
+++ b/sys/compat/linuxkpi/common/src/linux_compat.c
@@ -83,6 +83,7 @@ __FBSDID("$FreeBSD$");
 #include <linux/timer.h>
 #include <linux/interrupt.h>
 #include <linux/uaccess.h>
+#include <linux/utsname.h>
 #include <linux/list.h>
 #include <linux/kthread.h>
 #include <linux/kernel.h>
@@ -139,6 +140,7 @@ struct class linux_class_misc;
 struct list_head pci_drivers;
 struct list_head pci_devices;
 spinlock_t pci_lock;
+struct uts_namespace init_uts_ns;
 
 unsigned long linux_timer_hz_mask;
 
@@ -2815,6 +2817,8 @@ linux_compat_init(void *arg)
 	 */
 	for (i = 0; i < MAXCPU; i++)
 		CPU_SET(i, &static_single_cpu_mask[i]);
+
+	strlcpy(init_uts_ns.name.release, osrelease, sizeof(init_uts_ns.name.release));
 }
 SYSINIT(linux_compat, SI_SUB_DRIVERS, SI_ORDER_SECOND, linux_compat_init, NULL);