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test_sysctl: Add an unregister sysctl test

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Add a test that checks that the unregistered directory is removed from
/proc/sys/debug

Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
This commit is contained in:
Joel Granados
2023-06-16 10:59:18 +02:00
committed by Luis Chamberlain
parent e009bd5efe
commit 3557643859
2 changed files with 46 additions and 0 deletions
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30
lib/test_sysctl.c
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@@ -170,12 +170,42 @@ static int test_sysctl_setup_node_tests(void)
return 0;
}
/* Used to test that unregister actually removes the directory */
static struct ctl_table test_table_unregister[] = {
{
.procname = "unregister_error",
.data = &test_data.int_0001,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
},
{}
};
static int test_sysctl_run_unregister_nested(void)
{
struct ctl_table_header *unregister;
unregister = register_sysctl("debug/test_sysctl/unregister_error",
test_table_unregister);
if (!unregister)
return -ENOMEM;
unregister_sysctl_table(unregister);
return 0;
}
static int __init test_sysctl_init(void)
{
int err;
err = test_sysctl_setup_node_tests();
if (err)
goto out;
err = test_sysctl_run_unregister_nested();
out:
return err;
}
module_init(test_sysctl_init);