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Date:	Sun, 09 Mar 2014 23:36:49 +0900
From:	Satoru Takeuchi <satoru.takeuchi@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH 3/3] ktest: remove the misleading $buildonly and introduce $laststep.

From: Satoru Takeuchi <satoru.takeuchi@...il.com>

Each test of ktest consists of the following steps.

  build -> install -> boot -> run user defined tests.

$buildonly means not whether the test is build onlyor not. Actually
this variable mean the last step of the test as follows.

 0: boot or more
 1: build
 2: install

AS you can see, these are random numeric literals. In addition,
there is no explanation about them.

To improve readability, introduce $laststep instead of $buildonly.
This variable means the last step of the test as follows.

 STEP_BUILD (=0):        build
 STEP_INSTALL (=1):      install
 STEP_BOOT_OR_MORE (=2): boot or more

Signed-off-by: Satoru Takeuchi <satoru.takeuchi@...il.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
---
 tools/testing/ktest/ktest.pl | 70 +++++++++++++++++++++-----------------------
 1 file changed, 33 insertions(+), 37 deletions(-)

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index c34f0de..ec82487 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -196,9 +196,14 @@ my $patchcheck_type;
 my $patchcheck_start;
 my $patchcheck_end;
 
-# set when a test is something other that just building or install
-# which would require more options.
-my $buildonly = 1;
+# Each test of ktest consists of the following steps.
+use constant {
+    STEP_BUILD => 0,
+    STEP_INSTALL => 1,
+    STEP_BOOT_OR_MORE => 2,
+};
+# The last step of test.
+my $laststep = STEP_BUILD;
 
 # tell build not to worry about warnings, even when WARNINGS_FILE is set
 my $warnings_ok = 0;
@@ -553,30 +558,27 @@ sub get_mandatory_config {
 }
 
 sub get_mandatory_configs {
+    # Options required for build step.
     get_mandatory_config("MACHINE");
     get_mandatory_config("BUILD_DIR");
     get_mandatory_config("OUTPUT_DIR");
+    get_mandatory_config("LOCALVERSION");
 
     if ($newconfig) {
 	get_mandatory_config("BUILD_OPTIONS");
     }
+    return if ($laststep == STEP_BUILD);
 
-    # options required for other than just building a kernel
-    if (!$buildonly) {
-	get_mandatory_config("POWER_CYCLE");
-	get_mandatory_config("CONSOLE");
-    }
+    # Options required for install step.
+    get_mandatory_config("SSH_USER");
+    get_mandatory_config("BUILD_TARGET");
+    get_mandatory_config("TARGET_IMAGE");
 
-    # options required for install and more
-    if ($buildonly != 1) {
-	get_mandatory_config("SSH_USER");
-	get_mandatory_config("BUILD_TARGET");
-	get_mandatory_config("TARGET_IMAGE");
-    }
-
-    get_mandatory_config("LOCALVERSION");
+    return if ($laststep == STEP_INSTALL);
 
-    return if ($buildonly);
+    # Options required for boot step.
+    get_mandatory_config("POWER_CYCLE");
+    get_mandatory_config("CONSOLE");
 
     my $rtype = $opt{"REBOOT_TYPE"};
 
@@ -649,26 +651,20 @@ sub set_value {
 
     my $prvalue = process_variables($rvalue);
 
-    if ($buildonly && $lvalue =~ /^TEST_TYPE(\[.*\])?$/ && $prvalue ne "build") {
-	# Note if a test is something other than build, then we
-	# will need other manditory options.
-	if ($prvalue ne "install") {
-	    # for bisect, we need to check BISECT_TYPE
-	    if ($prvalue ne "bisect") {
-		$buildonly = 0;
+    if ($laststep <= STEP_INSTALL)  {
+	if ($lvalue =~ /^TEST_TYPE(\[.*\])?$/ && $prvalue ne "build") {
+	    # Note if a test is something other than build, then we
+	    # will need other manditory options.
+	    if ($prvalue eq "install") {
+		# install still limits some manditory options.
+		$laststep = STEP_INSTALL;
+	    } elsif ($prvalue ne "bisect") {
+		# for bisect, we need to check BISECT_TYPE
+		$laststep = STEP_BUILD;
 	    }
-	} else {
-	    # install still limits some manditory options.
-	    $buildonly = 2;
-	}
-    }
-
-    if ($buildonly && $lvalue =~ /^BISECT_TYPE(\[.*\])?$/ && $prvalue ne "build") {
-	if ($prvalue ne "install") {
-	    $buildonly = 0;
-	} else {
-	    # install still limits some manditory options.
-	    $buildonly = 2;
+	} elsif ($lvalue =~ /^BISECT_TYPE(\[.*\])?$/ &&
+		   $prvalue ne "build") {
+	    $laststep = ($prvalue eq "install") ? STEP_INSTALL : STEP_BUILD;
 	}
     }
 
@@ -4045,7 +4041,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
     $dmesg = "$tmpdir/dmesg-$machine";
     $output_config = "$outputdir/.config";
 
-    if (!$buildonly) {
+    if ($laststep >= STEP_BOOT_OR_MORE) {
 	$target = "$ssh_user\@$machine";
 	if ($reboot_type eq "grub") {
 	    dodie "GRUB_MENU not defined" if (!defined($grub_menu));
-- 
1.9.0

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