Add is_init test attribute of type bool. Add to_string, get, and filter
methods to lib/kunit/attributes.c.
Mark each of the tests in the init section with the is_init=true attribute.

Add is_init to the attributes documentation.

Reviewed-by: David Gow <david...@google.com>
Signed-off-by: Rae Moar <rm...@google.com>
---
 .../dev-tools/kunit/running_tips.rst          |  7 +++
 include/kunit/test.h                          |  1 +
 lib/kunit/attributes.c                        | 60 +++++++++++++++++++
 lib/kunit/executor.c                          |  6 +-
 4 files changed, 73 insertions(+), 1 deletion(-)

diff --git a/Documentation/dev-tools/kunit/running_tips.rst 
b/Documentation/dev-tools/kunit/running_tips.rst
index 766f9cdea0fa..024e9ad1d1e9 100644
--- a/Documentation/dev-tools/kunit/running_tips.rst
+++ b/Documentation/dev-tools/kunit/running_tips.rst
@@ -428,3 +428,10 @@ This attribute indicates the name of the module associated 
with the test.
 
 This attribute is automatically saved as a string and is printed for each 
suite.
 Tests can also be filtered using this attribute.
+
+``is_init``
+
+This attribute indicates whether the test uses init data or functions.
+
+This attribute is automatically saved as a boolean and tests can also be
+filtered using this attribute.
diff --git a/include/kunit/test.h b/include/kunit/test.h
index fe79cd736e94..b163b9984b33 100644
--- a/include/kunit/test.h
+++ b/include/kunit/test.h
@@ -253,6 +253,7 @@ struct kunit_suite {
        struct dentry *debugfs;
        struct string_stream *log;
        int suite_init_err;
+       bool is_init;
 };
 
 /* Stores an array of suites, end points one past the end */
diff --git a/lib/kunit/attributes.c b/lib/kunit/attributes.c
index 1b512f7e1838..2cf04cc09372 100644
--- a/lib/kunit/attributes.c
+++ b/lib/kunit/attributes.c
@@ -58,6 +58,16 @@ static const char *attr_enum_to_string(void *attr, const 
char * const str_list[]
        return str_list[val];
 }
 
+static const char *attr_bool_to_string(void *attr, bool *to_free)
+{
+       bool val = (bool)attr;
+
+       *to_free = false;
+       if (val)
+               return "true";
+       return "false";
+}
+
 static const char *attr_speed_to_string(void *attr, bool *to_free)
 {
        return attr_enum_to_string(attr, speed_str_list, to_free);
@@ -166,6 +176,37 @@ static int attr_string_filter(void *attr, const char 
*input, int *err)
        return false;
 }
 
+static int attr_bool_filter(void *attr, const char *input, int *err)
+{
+       int i, input_int = -1;
+       long val = (long)attr;
+       const char *input_str = NULL;
+
+       for (i = 0; input[i]; i++) {
+               if (!strchr(op_list, input[i])) {
+                       input_str = input + i;
+                       break;
+               }
+       }
+
+       if (!input_str) {
+               *err = -EINVAL;
+               pr_err("kunit executor: filter value not found: %s\n", input);
+               return false;
+       }
+
+       if (!strcmp(input_str, "true"))
+               input_int = (int)true;
+       else if (!strcmp(input_str, "false"))
+               input_int = (int)false;
+       else {
+               *err = -EINVAL;
+               pr_err("kunit executor: invalid filter input: %s\n", input);
+               return false;
+       }
+
+       return int_filter(val, input, input_int, err);
+}
 
 /* Get Attribute Methods */
 
@@ -194,6 +235,17 @@ static void *attr_module_get(void *test_or_suite, bool 
is_test)
                return (void *) "";
 }
 
+static void *attr_is_init_get(void *test_or_suite, bool is_test)
+{
+       struct kunit_suite *suite = is_test ? NULL : test_or_suite;
+       struct kunit_case *test = is_test ? test_or_suite : NULL;
+
+       if (test)
+               return ((void *) NULL);
+       else
+               return ((void *) suite->is_init);
+}
+
 /* List of all Test Attributes */
 
 static struct kunit_attr kunit_attr_list[] = {
@@ -212,6 +264,14 @@ static struct kunit_attr kunit_attr_list[] = {
                .filter = attr_string_filter,
                .attr_default = (void *)"",
                .print = PRINT_SUITE,
+       },
+       {
+               .name = "is_init",
+               .get_attr = attr_is_init_get,
+               .to_string = attr_bool_to_string,
+               .filter = attr_bool_filter,
+               .attr_default = (void *)false,
+               .print = PRINT_SUITE,
        }
 };
 
diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
index 847329c51e91..717b9599036b 100644
--- a/lib/kunit/executor.c
+++ b/lib/kunit/executor.c
@@ -300,6 +300,7 @@ struct kunit_suite_set kunit_merge_suite_sets(struct 
kunit_suite_set init_suite_
        struct kunit_suite_set total_suite_set = {NULL, NULL};
        struct kunit_suite **total_suite_start = NULL;
        size_t init_num_suites, num_suites, suite_size;
+       int i = 0;
 
        init_num_suites = init_suite_set.end - init_suite_set.start;
        num_suites = suite_set.end - suite_set.start;
@@ -310,8 +311,11 @@ struct kunit_suite_set kunit_merge_suite_sets(struct 
kunit_suite_set init_suite_
        if (!total_suite_start)
                return total_suite_set;
 
-       /* Append init suites and then all other kunit suites */
+       /* Append and mark init suites and then append all other kunit suites */
        memcpy(total_suite_start, init_suite_set.start, init_num_suites * 
suite_size);
+       for (i = 0; i < init_num_suites; i++)
+               total_suite_start[i]->is_init = true;
+
        memcpy(total_suite_start + init_num_suites, suite_set.start, num_suites 
* suite_size);
 
        /* Set kunit suite set start and end */
-- 
2.43.0.472.g3155946c3a-goog


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