From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/kernel/ksysfs.c | 27 +++++++--------------------
1 files changed, 7 insertions(+), 20 deletions(-)
diff --git a/kernel/kernel/ksysfs.c b/kernel/kernel/ksysfs.c
index a23135b..e20c19e 100644
--- a/kernel/kernel/ksysfs.c
+++ b/kernel/kernel/ksysfs.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* kernel/ksysfs.c - sysfs attributes in /sys/kernel, which
* are not related to any other subsystem
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This file is release under the GPLv2
- *
*/
#include <linux/kobject.h>
@@ -108,7 +106,12 @@
static ssize_t kexec_crash_size_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
- return sprintf(buf, "%zu\n", crash_get_memory_size());
+ ssize_t size = crash_get_memory_size();
+
+ if (size < 0)
+ return size;
+
+ return sprintf(buf, "%zd\n", size);
}
static ssize_t kexec_crash_size_store(struct kobject *kobj,
struct kobj_attribute *attr,
@@ -139,15 +142,6 @@
KERNEL_ATTR_RO(vmcoreinfo);
#endif /* CONFIG_CRASH_CORE */
-
-#if defined(CONFIG_PREEMPT_RT_FULL)
-static ssize_t realtime_show(struct kobject *kobj,
- struct kobj_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", 1);
-}
-KERNEL_ATTR_RO(realtime);
-#endif
/* whether file capabilities are enabled */
static ssize_t fscaps_show(struct kobject *kobj,
@@ -240,9 +234,6 @@
&rcu_expedited_attr.attr,
&rcu_normal_attr.attr,
#endif
-#ifdef CONFIG_PREEMPT_RT_FULL
- &realtime_attr.attr,
-#endif
NULL
};
@@ -280,8 +271,4 @@
return error;
}
-#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
-pure_initcall(ksysfs_init);
-#else
core_initcall(ksysfs_init);
-#endif
--
Gitblit v1.6.2