From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org, vince@deater.net,
eranian@google.com, Arnaldo Carvalho de Melo <acme@infradead.org>,
Borislav Petkov <bp@alien8.de>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>
Subject: [PATCH] perf/x86/intel/pt: Use boot_cpu_has() because it's there
Date: Wed, 6 Apr 2016 17:35:07 +0300 [thread overview]
Message-ID: <1459953307-14372-1-git-send-email-alexander.shishkin@linux.intel.com> (raw)
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>
---
arch/x86/events/intel/pt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 32b613e863..7c7f09a8fe 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -1159,7 +1159,7 @@ 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();
--
2.8.0.rc3
next reply other threads:[~2016-04-06 14:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 14:35 Alexander Shishkin [this message]
2016-04-06 16:57 ` Borislav Petkov
2016-04-13 11:34 ` [tip:perf/core] " tip-bot for Alexander Shishkin
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