1 // SPDX-License-Identifier: GPL-2.0-only <<
2 #include <linux/kernel.h> 1 #include <linux/kernel.h>
3 #include <linux/module.h> 2 #include <linux/module.h>
4 #include <linux/export.h> 3 #include <linux/export.h>
5 #include <linux/mm.h> 4 #include <linux/mm.h>
6 #include <linux/vmalloc.h> 5 #include <linux/vmalloc.h>
7 #include <linux/slab.h> 6 #include <linux/slab.h>
8 #include <linux/sizes.h> 7 #include <linux/sizes.h>
9 #include <linux/io.h> <<
10 8
11 #include <asm/page.h> 9 #include <asm/page.h>
12 #ifdef CONFIG_MIPS 10 #ifdef CONFIG_MIPS
13 #include <asm/bootinfo.h> 11 #include <asm/bootinfo.h>
14 #endif 12 #endif
15 13
16 struct foo { 14 struct foo {
17 unsigned int bar; 15 unsigned int bar;
18 }; 16 };
19 17
20 static struct foo *foo; !! 18 struct foo *foo;
21 19
22 static int __init test_debug_virtual_init(void 20 static int __init test_debug_virtual_init(void)
23 { 21 {
24 phys_addr_t pa; 22 phys_addr_t pa;
25 void *va; 23 void *va;
26 24
27 va = (void *)VMALLOC_START; 25 va = (void *)VMALLOC_START;
28 pa = virt_to_phys(va); 26 pa = virt_to_phys(va);
29 27
30 pr_info("PA: %pa for VA: 0x%lx\n", &pa 28 pr_info("PA: %pa for VA: 0x%lx\n", &pa, (unsigned long)va);
31 29
32 foo = kzalloc(sizeof(*foo), GFP_KERNEL 30 foo = kzalloc(sizeof(*foo), GFP_KERNEL);
33 if (!foo) 31 if (!foo)
34 return -ENOMEM; 32 return -ENOMEM;
35 33
36 pa = virt_to_phys(foo); 34 pa = virt_to_phys(foo);
37 va = foo; 35 va = foo;
38 pr_info("PA: %pa for VA: 0x%lx\n", &pa 36 pr_info("PA: %pa for VA: 0x%lx\n", &pa, (unsigned long)va);
39 37
40 return 0; 38 return 0;
41 } 39 }
42 module_init(test_debug_virtual_init); 40 module_init(test_debug_virtual_init);
43 41
44 static void __exit test_debug_virtual_exit(voi 42 static void __exit test_debug_virtual_exit(void)
45 { 43 {
46 kfree(foo); 44 kfree(foo);
47 } 45 }
48 module_exit(test_debug_virtual_exit); 46 module_exit(test_debug_virtual_exit);
49 47
50 MODULE_LICENSE("GPL"); 48 MODULE_LICENSE("GPL");
51 MODULE_DESCRIPTION("Test module for CONFIG_DEB 49 MODULE_DESCRIPTION("Test module for CONFIG_DEBUG_VIRTUAL");
52 50
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.