perf/x86/intel/pt: Use boot_cpu_has() because it's there

At the moment, initialization path is using test_cpu_cap(&boot_cpu_data),
to detect PT, which is just open coding boot_cpu_has(). Use the latter
instead.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: eranian@google.com
Cc: vince@deater.net
Link: http://lkml.kernel.org/r/1459953307-14372-1-git-send-email-alexander.shishkin@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 127f58c179767e1a2f93226b7de6b3ade420a8a8..1aefd430e75224d3fa5219b84b81313da553688e 100644 (file)
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -1106,7 +1106,7 @@ static __init int pt_init(void)
 
        BUILD_BUG_ON(sizeof(struct topa) > PAGE_SIZE);
 
-       if (!test_cpu_cap(&boot_cpu_data, X86_FEATURE_INTEL_PT))
+       if (!boot_cpu_has(X86_FEATURE_INTEL_PT))
                return -ENODEV;
 
        get_online_cpus();