mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-16 07:24:39 +08:00
21d65555cd
There is a special case for validate_events() where we'll call x86_pmu.get_constraints(.idx=-1). It's purpose, up until recent, seems to be to avoid taking a previous constraint from cpuc->event_constraint[] in intel_get_event_constraints(). (I could not find any other get_event_constraints() implementation using @idx) However, since that cpuc is freshly allocated, that array will in fact be initialized with NULL pointers, achieving the very same effect. Therefore remove this exception. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Stephane Eranian <eranian@google.com> 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: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|---|---|---|
| .. | ||
| amd | ||
| intel | ||
| core.c | ||
| Kconfig | ||
| Makefile | ||
| msr.c | ||
| perf_event.h | ||