bitbake: runqueue: Drop BB_STAMP_POLICY/BB_STAMP_WHITELIST

The different stamp policies were poor versions of the siggen code and task
hashes, predating it and being used by packaged staging. They had many
limitations, hence their replacement. I'm not aware of any users of that
code any more so I believe it and the assoicated stamp whitelist variable
can simply be removed.

(Bitbake rev: 98407efc8c670abd71d3fa88ec3776ee9b5c38f3)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/runqueue.py

@@ -385,7 +385,6 @@ class RunQueueData:
         self.rq = rq
         self.warn_multi_bb = False
 
-        self.stampwhitelist = cfgData.getVar("BB_STAMP_WHITELIST") or ""
         self.multi_provider_whitelist = (cfgData.getVar("MULTI_PROVIDER_WHITELIST") or "").split()
         self.setscenewhitelist = get_setscene_enforce_whitelist(cfgData, targets)
         self.setscenewhitelist_checked = False
@@ -1128,17 +1127,6 @@ class RunQueueData:
                     logger.error("".join(msgs))
 
         self.init_progress_reporter.next_stage()
-
-        # Create a whitelist usable by the stamp checks
-        self.stampfnwhitelist = {}
-        for mc in self.taskData:
-            self.stampfnwhitelist[mc] = []
-            for entry in self.stampwhitelist.split():
-                if entry not in self.taskData[mc].build_targets:
-                    continue
-                fn = self.taskData.build_targets[entry][0]
-                self.stampfnwhitelist[mc].append(fn)
-
         self.init_progress_reporter.next_stage()
 
         # Iterate over the task list looking for tasks with a 'setscene' function
@@ -1227,7 +1215,6 @@ class RunQueue:
         self.cfgData = cfgData
         self.rqdata = RunQueueData(self, cooker, cfgData, dataCaches, taskData, targets)
 
-        self.stamppolicy = cfgData.getVar("BB_STAMP_POLICY") or "perfile"
         self.hashvalidate = cfgData.getVar("BB_HASHCHECK_FUNCTION") or None
         self.depvalidate = cfgData.getVar("BB_SETSCENE_DEPVALID") or None
 
@@ -1356,14 +1343,6 @@ class RunQueue:
         if taskname is None:
             taskname = tn
 
-        if self.stamppolicy == "perfile":
-            fulldeptree = False
-        else:
-            fulldeptree = True
-            stampwhitelist = []
-            if self.stamppolicy == "whitelist":
-                stampwhitelist = self.rqdata.stampfnwhitelist[mc]
-
         stampfile = bb.build.stampfile(taskname, self.rqdata.dataCaches[mc], taskfn)
 
         # If the stamp is missing, it's not current
@@ -1395,7 +1374,7 @@ class RunQueue:
                     continue
                 if t3 and t3 > t2:
                     continue
-                if fn == fn2 or (fulldeptree and fn2 not in stampwhitelist):
+                if fn == fn2:
                     if not t2:
                         logger.debug2('Stampfile %s does not exist', stampfile2)
                         iscurrent = False