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module-playground: Add debugfs entry in mod-simple 

Add a debugfs file in mod-simple for manual tests: insert the module and
open the file to have its refcount increased.

Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
This commit is contained in:
Lucas De Marchi 2022-06-03 14:50:42 -07:00
parent 3a92fc6309
commit 2ab4fbcb77
1 changed files with 17 additions and 1 deletions
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18
testsuite/module-playground/mod-simple.c
View File

@ -1,16 +1,32 @@
#include <linux/debugfs.h>
#include <linux/init.h>
#include <linux/module.h>
static struct dentry *debugfs_dir;
static int test_show(struct seq_file *s, void *data)
{
seq_puts(s, "test");
return 0;
}
DEFINE_SHOW_ATTRIBUTE(test);
static int __init test_module_init(void)
{
debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
debugfs_create_file("test", 0444, debugfs_dir, NULL, &test_fops);
return 0;
}
static void test_module_exit(void)
{
debugfs_remove_recursive(debugfs_dir);
}
module_init(test_module_init);
module_exit(test_module_exit);
MODULE_AUTHOR("Lucas De Marchi <lucas.demarchi@intel.com>");
MODULE_LICENSE("LGPL");
MODULE_LICENSE("GPL");