Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-5.2

Mainly some pca954x work, i.e. removal of unused platform data support
and added support for sysfs interface for manipulating/examining the
idle state. And then a mechanical cocci-style patch.

3 files changed, 152 insertions, 54 deletions

diff --git a/tools/perf/scripts/python/export-to-postgresql.py b/tools/perf/scripts/python/export-to-postgresql.py
index 390a351d15ea..c3eae1d77d36 100644
--- a/tools/perf/scripts/python/export-to-postgresql.py
+++ b/tools/perf/scripts/python/export-to-postgresql.py
@@ -10,6 +10,8 @@
 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 # more details.
 
+from __future__ import print_function
+
 import os
 import sys
 import struct
@@ -199,6 +201,18 @@ import datetime
 
 from PySide.QtSql import *
 
+if sys.version_info < (3, 0):
+        def toserverstr(str):
+                return str
+        def toclientstr(str):
+                return str
+else:
+        # Assume UTF-8 server_encoding and client_encoding
+        def toserverstr(str):
+                return bytes(str, "UTF_8")
+        def toclientstr(str):
+                return bytes(str, "UTF_8")
+
 # Need to access PostgreSQL C library directly to use COPY FROM STDIN
 from ctypes import *
 libpq = CDLL("libpq.so.5")
@@ -234,12 +248,17 @@ perf_db_export_mode = True
 perf_db_export_calls = False
 perf_db_export_callchains = False
 
+def printerr(*args, **kw_args):
+        print(*args, file=sys.stderr, **kw_args)
+
+def printdate(*args, **kw_args):
+        print(datetime.datetime.today(), *args, sep=' ', **kw_args)
 
 def usage():
-        print >> sys.stderr, "Usage is: export-to-postgresql.py <database name> [<columns>] [<calls>] [<callchains>]"
-        print >> sys.stderr, "where:    columns         'all' or 'branches'"
-        print >> sys.stderr, "          calls           'calls' => create calls and call_paths table"
-        print >> sys.stderr, "          callchains      'callchains' => create call_paths table"
+        printerr("Usage is: export-to-postgresql.py <database name> [<columns>] [<calls>] [<callchains>]")
+        printerr("where:        columns         'all' or 'branches'")
+        printerr("              calls           'calls' => create calls and call_paths table")
+        printerr("              callchains      'callchains' => create call_paths table")
         raise Exception("Too few arguments")
 
 if (len(sys.argv) < 2):
@@ -273,7 +292,7 @@ def do_query(q, s):
                 return
         raise Exception("Query failed: " + q.lastError().text())
 
-print datetime.datetime.today(), "Creating database..."
+printdate("Creating database...")
 
 db = QSqlDatabase.addDatabase('QPSQL')
 query = QSqlQuery(db)
@@ -506,12 +525,12 @@ do_query(query, 'CREATE VIEW samples_view AS '
         ' FROM samples')
 
 
-file_header = struct.pack("!11sii", "PGCOPY\n\377\r\n\0", 0, 0)
-file_trailer = "\377\377"
+file_header = struct.pack("!11sii", b"PGCOPY\n\377\r\n\0", 0, 0)
+file_trailer = b"\377\377"
 
 def open_output_file(file_name):
         path_name = output_dir_name + "/" + file_name
-        file = open(path_name, "w+")
+        file = open(path_name, "wb+")
         file.write(file_header)
         return file
 
@@ -526,13 +545,13 @@ def copy_output_file_direct(file, table_name):
 
 # Use COPY FROM STDIN because security may prevent postgres from accessing the files directly
 def copy_output_file(file, table_name):
-        conn = PQconnectdb("dbname = " + dbname)
+        conn = PQconnectdb(toclientstr("dbname = " + dbname))
         if (PQstatus(conn)):
                 raise Exception("COPY FROM STDIN PQconnectdb failed")
         file.write(file_trailer)
         file.seek(0)
         sql = "COPY " + table_name + " FROM STDIN (FORMAT 'binary')"
-        res = PQexec(conn, sql)
+        res = PQexec(conn, toclientstr(sql))
         if (PQresultStatus(res) != 4):
                 raise Exception("COPY FROM STDIN PQexec failed")
         data = file.read(65536)
@@ -566,7 +585,7 @@ if perf_db_export_calls:
         call_file               = open_output_file("call_table.bin")
 
 def trace_begin():
-        print datetime.datetime.today(), "Writing to intermediate files..."
+        printdate("Writing to intermediate files...")
         # id == 0 means unknown.  It is easier to create records for them than replace the zeroes with NULLs
         evsel_table(0, "unknown")
         machine_table(0, 0, "unknown")
@@ -582,7 +601,7 @@ def trace_begin():
 unhandled_count = 0
 
 def trace_end():
-        print datetime.datetime.today(), "Copying to database..."
+        printdate("Copying to database...")
         copy_output_file(evsel_file,            "selected_events")
         copy_output_file(machine_file,          "machines")
         copy_output_file(thread_file,           "threads")
@@ -597,7 +616,7 @@ def trace_end():
         if perf_db_export_calls:
                 copy_output_file(call_file,             "calls")
 
-        print datetime.datetime.today(), "Removing intermediate files..."
+        printdate("Removing intermediate files...")
         remove_output_file(evsel_file)
         remove_output_file(machine_file)
         remove_output_file(thread_file)
@@ -612,7 +631,7 @@ def trace_end():
         if perf_db_export_calls:
                 remove_output_file(call_file)
         os.rmdir(output_dir_name)
-        print datetime.datetime.today(), "Adding primary keys"
+        printdate("Adding primary keys")
         do_query(query, 'ALTER TABLE selected_events ADD PRIMARY KEY (id)')
         do_query(query, 'ALTER TABLE machines        ADD PRIMARY KEY (id)')
         do_query(query, 'ALTER TABLE threads         ADD PRIMARY KEY (id)')
@@ -627,7 +646,7 @@ def trace_end():
         if perf_db_export_calls:
                 do_query(query, 'ALTER TABLE calls           ADD PRIMARY KEY (id)')
 
-        print datetime.datetime.today(), "Adding foreign keys"
+        printdate("Adding foreign keys")
         do_query(query, 'ALTER TABLE threads '
                                         'ADD CONSTRAINT machinefk  FOREIGN KEY (machine_id)   REFERENCES machines   (id),'
                                         'ADD CONSTRAINT processfk  FOREIGN KEY (process_id)   REFERENCES threads    (id)')
@@ -663,8 +682,8 @@ def trace_end():
                 do_query(query, 'CREATE INDEX pid_idx ON calls (parent_id)')
 
         if (unhandled_count):
-                print datetime.datetime.today(), "Warning: ", unhandled_count, " unhandled events"
-        print datetime.datetime.today(), "Done"
+                printdate("Warning: ", unhandled_count, " unhandled events")
+        printdate("Done")
 
 def trace_unhandled(event_name, context, event_fields_dict):
         global unhandled_count
@@ -674,12 +693,14 @@ def sched__sched_switch(*x):
         pass
 
 def evsel_table(evsel_id, evsel_name, *x):
+        evsel_name = toserverstr(evsel_name)
         n = len(evsel_name)
         fmt = "!hiqi" + str(n) + "s"
         value = struct.pack(fmt, 2, 8, evsel_id, n, evsel_name)
         evsel_file.write(value)
 
 def machine_table(machine_id, pid, root_dir, *x):
+        root_dir = toserverstr(root_dir)
         n = len(root_dir)
         fmt = "!hiqiii" + str(n) + "s"
         value = struct.pack(fmt, 3, 8, machine_id, 4, pid, n, root_dir)
@@ -690,6 +711,7 @@ def thread_table(thread_id, machine_id, process_id, pid, tid, *x):
         thread_file.write(value)
 
 def comm_table(comm_id, comm_str, *x):
+        comm_str = toserverstr(comm_str)
         n = len(comm_str)
         fmt = "!hiqi" + str(n) + "s"
         value = struct.pack(fmt, 2, 8, comm_id, n, comm_str)
@@ -701,6 +723,9 @@ def comm_thread_table(comm_thread_id, comm_id, thread_id, *x):
         comm_thread_file.write(value)
 
 def dso_table(dso_id, machine_id, short_name, long_name, build_id, *x):
+        short_name = toserverstr(short_name)
+        long_name = toserverstr(long_name)
+        build_id = toserverstr(build_id)
         n1 = len(short_name)
         n2 = len(long_name)
         n3 = len(build_id)
@@ -709,12 +734,14 @@ def dso_table(dso_id, machine_id, short_name, long_name, build_id, *x):
         dso_file.write(value)
 
 def symbol_table(symbol_id, dso_id, sym_start, sym_end, binding, symbol_name, *x):
+        symbol_name = toserverstr(symbol_name)
         n = len(symbol_name)
         fmt = "!hiqiqiqiqiii" + str(n) + "s"
         value = struct.pack(fmt, 6, 8, symbol_id, 8, dso_id, 8, sym_start, 8, sym_end, 4, binding, n, symbol_name)
         symbol_file.write(value)
 
 def branch_type_table(branch_type, name, *x):
+        name = toserverstr(name)
         n = len(name)
         fmt = "!hiii" + str(n) + "s"
         value = struct.pack(fmt, 2, 4, branch_type, n, name)
diff --git a/tools/perf/scripts/python/export-to-sqlite.py b/tools/perf/scripts/python/export-to-sqlite.py
index eb63e6c7107f..3b71902a5a21 100644
--- a/tools/perf/scripts/python/export-to-sqlite.py
+++ b/tools/perf/scripts/python/export-to-sqlite.py
@@ -10,6 +10,8 @@
 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 # more details.
 
+from __future__ import print_function
+
 import os
 import sys
 import struct
@@ -60,11 +62,17 @@ perf_db_export_mode = True
 perf_db_export_calls = False
 perf_db_export_callchains = False
 
+def printerr(*args, **keyword_args):
+        print(*args, file=sys.stderr, **keyword_args)
+
+def printdate(*args, **kw_args):
+        print(datetime.datetime.today(), *args, sep=' ', **kw_args)
+
 def usage():
-        print >> sys.stderr, "Usage is: export-to-sqlite.py <database name> [<columns>] [<calls>] [<callchains>]"
-        print >> sys.stderr, "where:    columns         'all' or 'branches'"
-        print >> sys.stderr, "          calls           'calls' => create calls and call_paths table"
-        print >> sys.stderr, "          callchains      'callchains' => create call_paths table"
+        printerr("Usage is: export-to-sqlite.py <database name> [<columns>] [<calls>] [<callchains>]");
+        printerr("where:        columns         'all' or 'branches'");
+        printerr("              calls           'calls' => create calls and call_paths table");
+        printerr("              callchains      'callchains' => create call_paths table");
         raise Exception("Too few arguments")
 
 if (len(sys.argv) < 2):
@@ -100,7 +108,7 @@ def do_query_(q):
                 return
         raise Exception("Query failed: " + q.lastError().text())
 
-print datetime.datetime.today(), "Creating database..."
+printdate("Creating database ...")
 
 db_exists = False
 try:
@@ -378,7 +386,7 @@ if perf_db_export_calls:
         call_query.prepare("INSERT INTO calls VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)")
 
 def trace_begin():
-        print datetime.datetime.today(), "Writing records..."
+        printdate("Writing records...")
         do_query(query, 'BEGIN TRANSACTION')
         # id == 0 means unknown.  It is easier to create records for them than replace the zeroes with NULLs
         evsel_table(0, "unknown")
@@ -397,14 +405,14 @@ unhandled_count = 0
 def trace_end():
         do_query(query, 'END TRANSACTION')
 
-        print datetime.datetime.today(), "Adding indexes"
+        printdate("Adding indexes")
         if perf_db_export_calls:
                 do_query(query, 'CREATE INDEX pcpid_idx ON calls (parent_call_path_id)')
                 do_query(query, 'CREATE INDEX pid_idx ON calls (parent_id)')
 
         if (unhandled_count):
-                print datetime.datetime.today(), "Warning: ", unhandled_count, " unhandled events"
-        print datetime.datetime.today(), "Done"
+                printdate("Warning: ", unhandled_count, " unhandled events")
+        printdate("Done")
 
 def trace_unhandled(event_name, context, event_fields_dict):
         global unhandled_count
diff --git a/tools/perf/scripts/python/exported-sql-viewer.py b/tools/perf/scripts/python/exported-sql-viewer.py
index afec9479ca7f..74ef92f1d19a 100755
--- a/tools/perf/scripts/python/exported-sql-viewer.py
+++ b/tools/perf/scripts/python/exported-sql-viewer.py
@@ -88,20 +88,39 @@
 #                                                                              7fab593ea956 48 89 15 3b 13 22 00                            movq  %rdx, 0x22133b(%rip)
 # 8107675243232  2    ls       22011  22011  hardware interrupt     No         7fab593ea956 _dl_start+0x26 (ld-2.19.so) -> ffffffff86a012e0 page_fault ([kernel])
 
+from __future__ import print_function
+
 import sys
 import weakref
 import threading
 import string
-import cPickle
+try:
+        # Python2
+        import cPickle as pickle
+        # size of pickled integer big enough for record size
+        glb_nsz = 8
+except ImportError:
+        import pickle
+        glb_nsz = 16
 import re
 import os
 from PySide.QtCore import *
 from PySide.QtGui import *
 from PySide.QtSql import *
+pyside_version_1 = True
 from decimal import *
 from ctypes import *
 from multiprocessing import Process, Array, Value, Event
 
+# xrange is range in Python3
+try:
+        xrange
+except NameError:
+        xrange = range
+
+def printerr(*args, **keyword_args):
+        print(*args, file=sys.stderr, **keyword_args)
+
 # Data formatting helpers
 
 def tohex(ip):
@@ -1004,10 +1023,6 @@ class ChildDataItemFinder():
 
 glb_chunk_sz = 10000
 
-# size of pickled integer big enough for record size
-
-glb_nsz = 8
-
 # Background process for SQL data fetcher
 
 class SQLFetcherProcess():
@@ -1066,7 +1081,7 @@ class SQLFetcherProcess():
                                 return True
                         if space >= glb_nsz:
                                 # Use 0 (or space < glb_nsz) to mean there is no more at the top of the buffer
-                                nd = cPickle.dumps(0, cPickle.HIGHEST_PROTOCOL)
+                                nd = pickle.dumps(0, pickle.HIGHEST_PROTOCOL)
                                 self.buffer[self.local_head : self.local_head + len(nd)] = nd
                         self.local_head = 0
                 if self.local_tail - self.local_head > sz:
@@ -1084,9 +1099,9 @@ class SQLFetcherProcess():
                         self.wait_event.wait()
 
         def AddToBuffer(self, obj):
-                d = cPickle.dumps(obj, cPickle.HIGHEST_PROTOCOL)
+                d = pickle.dumps(obj, pickle.HIGHEST_PROTOCOL)
                 n = len(d)
-                nd = cPickle.dumps(n, cPickle.HIGHEST_PROTOCOL)
+                nd = pickle.dumps(n, pickle.HIGHEST_PROTOCOL)
                 sz = n + glb_nsz
                 self.WaitForSpace(sz)
                 pos = self.local_head
@@ -1198,12 +1213,12 @@ class SQLFetcher(QObject):
                 pos = self.local_tail
                 if len(self.buffer) - pos < glb_nsz:
                         pos = 0
-                n = cPickle.loads(self.buffer[pos : pos + glb_nsz])
+                n = pickle.loads(self.buffer[pos : pos + glb_nsz])
                 if n == 0:
                         pos = 0
-                        n = cPickle.loads(self.buffer[0 : glb_nsz])
+                        n = pickle.loads(self.buffer[0 : glb_nsz])
                 pos += glb_nsz
-                obj = cPickle.loads(self.buffer[pos : pos + n])
+                obj = pickle.loads(self.buffer[pos : pos + n])
                 self.local_tail = pos + n
                 return obj
 
@@ -1512,6 +1527,19 @@ def BranchDataPrep(query):
                         " (" + dsoname(query.value(15)) + ")")
         return data
 
+def BranchDataPrepWA(query):
+        data = []
+        data.append(query.value(0))
+        # Workaround pyside failing to handle large integers (i.e. time) in python3 by converting to a string
+        data.append("{:>19}".format(query.value(1)))
+        for i in xrange(2, 8):
+                data.append(query.value(i))
+        data.append(tohex(query.value(8)).rjust(16) + " " + query.value(9) + offstr(query.value(10)) +
+                        " (" + dsoname(query.value(11)) + ")" + " -> " +
+                        tohex(query.value(12)) + " " + query.value(13) + offstr(query.value(14)) +
+                        " (" + dsoname(query.value(15)) + ")")
+        return data
+
 # Branch data model
 
 class BranchModel(TreeModel):
@@ -1539,7 +1567,11 @@ class BranchModel(TreeModel):
                         " AND evsel_id = " + str(self.event_id) +
                         " ORDER BY samples.id"
                         " LIMIT " + str(glb_chunk_sz))
-                self.fetcher = SQLFetcher(glb, sql, BranchDataPrep, self.AddSample)
+                if pyside_version_1 and sys.version_info[0] == 3:
+                        prep = BranchDataPrepWA
+                else:
+                        prep = BranchDataPrep
+                self.fetcher = SQLFetcher(glb, sql, prep, self.AddSample)
                 self.fetcher.done.connect(self.Update)
                 self.fetcher.Fetch(glb_chunk_sz)
 
@@ -2065,14 +2097,6 @@ def IsSelectable(db, table, sql = ""):
                 return False
         return True
 
-# SQL data preparation
-
-def SQLTableDataPrep(query, count):
-        data = []
-        for i in xrange(count):
-                data.append(query.value(i))
-        return data
-
 # SQL table data model item
 
 class SQLTableItem():
@@ -2096,7 +2120,7 @@ class SQLTableModel(TableModel):
                 self.more = True
                 self.populated = 0
                 self.column_headers = column_headers
-                self.fetcher = SQLFetcher(glb, sql, lambda x, y=len(column_headers): SQLTableDataPrep(x, y), self.AddSample)
+                self.fetcher = SQLFetcher(glb, sql, lambda x, y=len(column_headers): self.SQLTableDataPrep(x, y), self.AddSample)
                 self.fetcher.done.connect(self.Update)
                 self.fetcher.Fetch(glb_chunk_sz)
 
@@ -2140,6 +2164,12 @@ class SQLTableModel(TableModel):
         def columnHeader(self, column):
                 return self.column_headers[column]
 
+        def SQLTableDataPrep(self, query, count):
+                data = []
+                for i in xrange(count):
+                        data.append(query.value(i))
+                return data
+
 # SQL automatic table data model
 
 class SQLAutoTableModel(SQLTableModel):
@@ -2168,8 +2198,32 @@ class SQLAutoTableModel(SQLTableModel):
                         QueryExec(query, "SELECT column_name FROM information_schema.columns WHERE table_schema = '" + schema + "' and table_name = '" + select_table_name + "'")
                         while query.next():
                                 column_headers.append(query.value(0))
+                if pyside_version_1 and sys.version_info[0] == 3:
+                        if table_name == "samples_view":
+                                self.SQLTableDataPrep = self.samples_view_DataPrep
+                        if table_name == "samples":
+                                self.SQLTableDataPrep = self.samples_DataPrep
                 super(SQLAutoTableModel, self).__init__(glb, sql, column_headers, parent)
 
+        def samples_view_DataPrep(self, query, count):
+                data = []
+                data.append(query.value(0))
+                # Workaround pyside failing to handle large integers (i.e. time) in python3 by converting to a string
+                data.append("{:>19}".format(query.value(1)))
+                for i in xrange(2, count):
+                        data.append(query.value(i))
+                return data
+
+        def samples_DataPrep(self, query, count):
+                data = []
+                for i in xrange(9):
+                        data.append(query.value(i))
+                # Workaround pyside failing to handle large integers (i.e. time) in python3 by converting to a string
+                data.append("{:>19}".format(query.value(9)))
+                for i in xrange(10, count):
+                        data.append(query.value(i))
+                return data
+
 # Base class for custom ResizeColumnsToContents
 
 class ResizeColumnsToContentsBase(QObject):
@@ -2854,9 +2908,13 @@ class LibXED():
                 ok = self.xed_format_context(2, inst.xedp, inst.bufferp, sizeof(inst.buffer), ip, 0, 0)
                 if not ok:
                         return 0, ""
+                if sys.version_info[0] == 2:
+                        result = inst.buffer.value
+                else:
+                        result = inst.buffer.value.decode()
                 # Return instruction length and the disassembled instruction text
                 # For now, assume the length is in byte 166
-                return inst.xedd[166], inst.buffer.value
+                return inst.xedd[166], result
 
 def TryOpen(file_name):
         try:
@@ -2872,9 +2930,14 @@ def Is64Bit(f):
         header = f.read(7)
         f.seek(pos)
         magic = header[0:4]
-        eclass = ord(header[4])
-        encoding = ord(header[5])
-        version = ord(header[6])
+        if sys.version_info[0] == 2:
+                eclass = ord(header[4])
+                encoding = ord(header[5])
+                version = ord(header[6])
+        else:
+                eclass = header[4]
+                encoding = header[5]
+                version = header[6]
         if magic == chr(127) + "ELF" and eclass > 0 and eclass < 3 and encoding > 0 and encoding < 3 and version == 1:
                 result = True if eclass == 2 else False
         return result
@@ -2973,7 +3036,7 @@ class DBRef():
 
 def Main():
         if (len(sys.argv) < 2):
-                print >> sys.stderr, "Usage is: exported-sql-viewer.py {<database name> | --help-only}"
+                printerr("Usage is: exported-sql-viewer.py {<database name> | --help-only}");
                 raise Exception("Too few arguments")
 
         dbname = sys.argv[1]
@@ -2986,8 +3049,8 @@ def Main():
 
         is_sqlite3 = False
         try:
-                f = open(dbname)
-                if f.read(15) == "SQLite format 3":
+                f = open(dbname, "rb")
+                if f.read(15) == b'SQLite format 3':
                         is_sqlite3 = True
                 f.close()
         except: