[PATCH v2] selftests: Warn about skipped tests in result summary

[Laura Nao]

Update the functions that print the test totals at the end of a selftest
to include a warning message when skipped tests are detected. The
message advises users that skipped tests may indicate missing
configuration options and suggests enabling them to improve coverage.

Signed-off-by: Laura Nao <laura....@collabora.com>
---
Changes in v2:
- Included count of skipped tests in the warning message
---
 tools/testing/selftests/kselftest.h               | 5 +++++
 tools/testing/selftests/kselftest/ksft.py         | 3 +++
 tools/testing/selftests/kselftest/ktap_helpers.sh | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/tools/testing/selftests/kselftest.h 
b/tools/testing/selftests/kselftest.h
index 29fedf609611..249201664bcb 100644
--- a/tools/testing/selftests/kselftest.h
+++ b/tools/testing/selftests/kselftest.h
@@ -147,6 +147,11 @@ static inline void ksft_set_plan(unsigned int plan)
 
 static inline void ksft_print_cnts(void)
 {
+       if (ksft_cnt.ksft_xskip > 0)
+               printf(
+                       "# %u skipped test(s) detected. Consider enabling 
relevant config options to improve coverage.\n",
+                       ksft_cnt.ksft_xskip
+               );
        if (ksft_plan != ksft_test_num())
                printf("# Planned tests != run tests (%u != %u)\n",
                        ksft_plan, ksft_test_num());
diff --git a/tools/testing/selftests/kselftest/ksft.py 
b/tools/testing/selftests/kselftest/ksft.py
index bf215790a89d..0e030837fc17 100644
--- a/tools/testing/selftests/kselftest/ksft.py
+++ b/tools/testing/selftests/kselftest/ksft.py
@@ -27,6 +27,9 @@ def set_plan(num_tests):
 
 
 def print_cnts():
+    if ksft_cnt['skip'] > 0:
+        print(f"# {ksft_cnt['skip']} skipped test(s) detected. Consider 
enabling relevant config options to improve coverage.")
+
     print(
         f"# Totals: pass:{ksft_cnt['pass']} fail:{ksft_cnt['fail']} xfail:0 
xpass:0 skip:{ksft_cnt['skip']} error:0"
     )
diff --git a/tools/testing/selftests/kselftest/ktap_helpers.sh 
b/tools/testing/selftests/kselftest/ktap_helpers.sh
index 79a125eb24c2..531094d81f03 100644
--- a/tools/testing/selftests/kselftest/ktap_helpers.sh
+++ b/tools/testing/selftests/kselftest/ktap_helpers.sh
@@ -107,5 +107,9 @@ ktap_finished() {
 }
 
 ktap_print_totals() {
+       if [ "$KTAP_CNT_SKIP" -gt 0 ]; then
+               echo "# $KTAP_CNT_SKIP skipped test(s) detected. " \
+                       "Consider enabling relevant config options to improve 
coverage."
+       fi
        echo "# Totals: pass:$KTAP_CNT_PASS fail:$KTAP_CNT_FAIL xfail:0 xpass:0 
skip:$KTAP_CNT_SKIP error:0"
 }
-- 
2.30.2