#!/usr/bin/env python # -*- coding: utf-8 -*- # # update-oui.py -- update netsniff-ng oui.conf from official IEEE OUI list # # Copyright (C) 2013 Tobias Klauser # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as # published by the Free Software Foundation. import os import sys import re import getopt try: from urllib2 import urlopen # Python 2.x except ImportError: from urllib.request import urlopen # Python 3.x DEFAULT_OUPUT_FILE = "oui.conf" DEFAULT_OUI_URL = "http://standards.ieee.org/develop/regauth/oui/oui.txt" OUI_PATTERN = re.compile(b"^\s*([a-fA-F0-9]{2})-([a-fA-F0-9]{2})-([a-fA-F0-9]{2})\s+\(hex\)\s+(.*)$") def usage(): print("""usage: {0} [OPTION...] available options: -f force overwrite of existing file -o set output file (default: {1}) -u set URL to fetch OUI list from (default: {2}) -h show this help and exit""".format(os.path.basename(sys.argv[0]), DEFAULT_OUPUT_FILE, DEFAULT_OUI_URL)) def main(): try: opts, args = getopt.getopt(sys.argv[1:], "fo:u:h") except getopt.GetoptError as err: print(str(err)) usage() sys.exit(-1) overwrite = False output_file = DEFAULT_OUPUT_FILE oui_url = DEFAULT_OUI_URL for o, a in opts: if o == '-f': overwrite = True elif o == '-o': output_file = a elif o == '-u': oui_url = a elif o == '-h': usage() sys.exit(0) else: assert False, "unhandled option" if not overwrite and os.path.exists(output_file): print("Error: output file {} already exists".format(output_file)) sys.exit(-1) print("Updating OUI information in {} from {}... ".format(output_file, oui_url)) fh_url = urlopen(oui_url) ouis = [] for line in fh_url: m = OUI_PATTERN.match(line) if m: oui = "0x{}{}{}".format(m.group(1), m.group(2), m.group(3)) vendor = m.group(4).rstrip() ouis.append((oui, vendor)) fh_file = open(output_file, 'w') for oui, vendor in sorted(ouis): fh_file.write("{}, {}\n".format(oui, vendor)) fh_url.close() fh_file.close() print("{} OUIs written to {}".format(len(ouis), output_file)) if __name__ == '__main__': main() on value='range'>range
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:38 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commitdd86e373e09fb16b83e8adf5c48c421a4ca76468 (patch)
tree55703c2ea8584e303e342090614e0aab3509ab21 /sound/isa/wavefront
parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/isa/wavefront')