2 files changed, 83 insertions, 0 deletions

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 04a7bb573daa..47c28146dfc2 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -105,6 +105,11 @@ my $reverse_bisect;
 my $bisect_manual;
 my $bisect_skip;
 my $config_bisect_good;
+my $bisect_ret_good;
+my $bisect_ret_bad;
+my $bisect_ret_skip;
+my $bisect_ret_abort;
+my $bisect_ret_default;
 my $in_patchcheck = 0;
 my $run_test;
 my $redirect;
@@ -1854,6 +1859,43 @@ sub do_run_test {
     waitpid $child_pid, 0;
     $child_exit = $?;
 
+    if (!$bug && $in_bisect) {
+        if (defined($bisect_ret_good)) {
+            if ($child_exit == $bisect_ret_good) {
+                return 1;
+            }
+        }
+        if (defined($bisect_ret_skip)) {
+            if ($child_exit == $bisect_ret_skip) {
+                return -1;
+            }
+        }
+        if (defined($bisect_ret_abort)) {
+            if ($child_exit == $bisect_ret_abort) {
+                fail "test abort" and return -2;
+            }
+        }
+        if (defined($bisect_ret_bad)) {
+            if ($child_exit == $bisect_ret_skip) {
+                return 0;
+            }
+        }
+        if (defined($bisect_ret_default)) {
+            if ($bisect_ret_default eq "good") {
+                return 1;
+            } elsif ($bisect_ret_default eq "bad") {
+                return 0;
+            } elsif ($bisect_ret_default eq "skip") {
+                return -1;
+            } elsif ($bisect_ret_default eq "abort") {
+                return -2;
+            } else {
+                fail "unknown default action: $bisect_ret_default"
+                    and return -2;
+            }
+        }
+    }
+
     if ($bug || $child_exit) {
         return 0 if $in_bisect;
         fail "test failed" and return 0;
@@ -3284,6 +3326,11 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
     $bisect_manual = set_test_option("BISECT_MANUAL", $i);
     $bisect_skip = set_test_option("BISECT_SKIP", $i);
     $config_bisect_good = set_test_option("CONFIG_BISECT_GOOD", $i);
+    $bisect_ret_good = set_test_option("BISECT_RET_GOOD", $i);
+    $bisect_ret_bad = set_test_option("BISECT_RET_BAD", $i);
+    $bisect_ret_skip = set_test_option("BISECT_RET_SKIP", $i);
+    $bisect_ret_abort = set_test_option("BISECT_RET_ABORT", $i);
+    $bisect_ret_default = set_test_option("BISECT_RET_DEFAULT", $i);
     $store_failures = set_test_option("STORE_FAILURES", $i);
     $store_successes = set_test_option("STORE_SUCCESSES", $i);
     $test_name = set_test_option("TEST_NAME", $i);
diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf
index 42e0eb9442e3..2ff0f8c483e9 100644
--- a/tools/testing/ktest/sample.conf
+++ b/tools/testing/ktest/sample.conf
@@ -868,6 +868,42 @@
 #   BISECT_BAD with BISECT_CHECK = good or
 #   BISECT_CHECK = bad, respectively.
 #
+# BISECT_RET_GOOD = 0 (optional, default undefined)
+#
+#   In case the specificed test returns something other than just
+#   0 for good, and non-zero for bad, you can override 0 being
+#   good by defining BISECT_RET_GOOD.
+#
+# BISECT_RET_BAD = 1 (optional, default undefined)
+#
+#   In case the specificed test returns something other than just
+#   0 for good, and non-zero for bad, you can override non-zero being
+#   bad by defining BISECT_RET_BAD.
+#
+# BISECT_RET_ABORT = 255 (optional, default undefined)
+#
+#   If you need to abort the bisect if the test discovers something
+#   that was wrong, you can define BISECT_RET_ABORT to be the error
+#   code returned by the test in order to abort the bisect.
+#
+# BISECT_RET_SKIP = 2 (optional, default undefined)
+#
+#   If the test detects that the current commit is neither good
+#   nor bad, but something else happened (another bug detected)
+#   you can specify BISECT_RET_SKIP to an error code that the
+#   test returns when it should skip the current commit.
+#
+# BISECT_RET_DEFAULT = good (optional, default undefined)
+#
+#   You can override the default of what to do when the above
+#   options are not hit. This may be one of, "good", "bad",
+#   "abort" or "skip" (without the quotes).
+#
+#   Note, if you do not define any of the previous BISECT_RET_*
+#   and define BISECT_RET_DEFAULT, all bisects results will do
+#   what the BISECT_RET_DEFAULT has.
+#
+#
 # Example:
 #   TEST_START
 #   TEST_TYPE = bisect