/* * Copyright (C) 2009 Johannes Berg * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License (not later!) * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, see * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include #include #include #include "event-parse.h" #define INDENT 65 static void print_string(struct trace_seq *s, struct event_format *event, const char *name, const void *data) { struct format_field *f = pevent_find_field(event, name); int offset; int length; if (!f) { trace_seq_printf(s, "NOTFOUND:%s", name); return; } offset = f->offset; length = f->size; if (!strncmp(f->type, "__data_loc", 10)) { unsigned long long v; if (pevent_read_number_field(f, data, &v)) { trace_seq_printf(s, "invalid_data_loc"); return; } offset = v & 0xffff; length = v >> 16; } trace_seq_printf(s, "%.*s", length, (char *)data + offset); } #define SF(fn) pevent_print_num_field(s, fn ":%d", event, fn, record, 0) #define SFX(fn) pevent_print_num_field(s, fn ":%#x", event, fn, record, 0) #define SP() trace_seq_putc(s, ' ') static int drv_bss_info_changed(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context) { void *data = record->data; print_string(s, event, "wiphy_name", data); trace_seq_printf(s, " vif:"); print_string(s, event, "vif_name", data); pevent_print_num_field(s, "(%d)", event, "vif_type", record, 1); trace_seq_printf(s, "\n%*s", INDENT, ""); SF("assoc"); SP(); SF("aid"); SP(); SF("cts"); SP(); SF("shortpre"); SP(); SF("shortslot"); SP(); SF("dtimper"); SP(); trace_seq_printf(s, "\n%*s", INDENT, ""); SF("bcnint"); SP(); SFX("assoc_cap"); SP(); SFX("basic_rates"); SP(); SF("enable_beacon"); trace_seq_printf(s, "\n%*s", INDENT, ""); SF("ht_operation_mode"); return 0; } int PEVENT_PLUGIN_LOADER(struct pevent *pevent) { pevent_register_event_handler(pevent, -1, "mac80211", "drv_bss_info_changed", drv_bss_info_changed, NULL); return 0; } void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) { pevent_unregister_event_handler(pevent, -1, "mac80211", "drv_bss_info_changed", drv_bss_info_changed, NULL); } th'>path: root/net/bluetooth/bnep
diff options
context:
space:
mode:
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 /net/bluetooth/bnep
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 'net/bluetooth/bnep')