#include #include #include #include #include #include #include #include #include #include #include #include #include "trace-event.h" #include "machine.h" #include "util.h" /* * global trace_event object used by trace_event__tp_format * * TODO There's no cleanup call for this. Add some sort of * __exit function support and call trace_event__cleanup * there. */ static struct trace_event tevent; static bool tevent_initialized; int trace_event__init(struct trace_event *t) { struct pevent *pevent = pevent_alloc(); if (pevent) { t->plugin_list = traceevent_load_plugins(pevent); t->pevent = pevent; } return pevent ? 0 : -1; } static int trace_event__init2(void) { int be = traceevent_host_bigendian(); struct pevent *pevent; if (trace_event__init(&tevent)) return -1; pevent = tevent.pevent; pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT); pevent_set_file_bigendian(pevent, be); pevent_set_host_bigendian(pevent, be); tevent_initialized = true; return 0; } int trace_event__register_resolver(struct machine *machine, pevent_func_resolver_t *func) { if (!tevent_initialized && trace_event__init2()) return -1; return pevent_set_function_resolver(tevent.pevent, func, machine); } void trace_event__cleanup(struct trace_event *t) { traceevent_unload_plugins(t->plugin_list, t->pevent); pevent_free(t->pevent); } /* * Returns pointer with encoded error via interface. */ static struct event_format* tp_format(const char *sys, const char *name) { struct pevent *pevent = tevent.pevent; struct event_format *event = NULL; char path[PATH_MAX]; size_t size; char *data; int err; scnprintf(path, PATH_MAX, "%s/%s/%s/format", tracing_events_path, sys, name); err = filename__read_str(path, &data, &size); if (err) return ERR_PTR(err); pevent_parse_format(pevent, &event, data, size, sys); free(data); return event; } /* * Returns pointer with encoded error via interface. */ struct event_format* trace_event__tp_format(const char *sys, const char *name) { if (!tevent_initialized && trace_event__init2()) return ERR_PTR(-ENOMEM); return tp_format(sys, name); } struct event_format *trace_event__tp_format_id(int id) { if (!tevent_initialized && trace_event__init2()) return ERR_PTR(-ENOMEM); return pevent_find_event(tevent.pevent, id); } ='grep'>log msg
path: root/drivers/usb/gadget/function/f_uvc.c
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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-03 22:19:15 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-03 22:19:15 +0100
commit424414947da3dd5cb0d60e4f299f7c51e472ae77 (patch)
treea4067480c4256c80ae8f8438a3e4bb88e32050bc /drivers/usb/gadget/function/f_uvc.c
parenta3683e0c1410c5c8136a7a93b0336ce88d3b893a (diff)
parentd07830db1bdb254e4b50d366010b219286b8c937 (diff)
Merge tag 'usb-serial-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes: USB-serial fixes for v4.10-rc7 One more device ID for pl2303. Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/gadget/function/f_uvc.c')