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From: "Li,Rongqing" <lirongqing@baidu.com>
To: Dave Hansen <dave.hansen@intel.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Jiri Olsa <olsajiri@gmail.com>
Cc: "peterz@infradead.org" <peterz@infradead.org>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"acme@kernel.org" <acme@kernel.org>,
	"namhyung@kernel.org" <namhyung@kernel.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"alexander.shishkin@linux.intel.com"
	<alexander.shishkin@linux.intel.com>,
	"irogers@google.com" <irogers@google.com>,
	"kan.liang@linux.intel.com" <kan.liang@linux.intel.com>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"bp@alien8.de" <bp@alien8.de>,
	"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
	"x86@kernel.org" <x86@kernel.org>,
	"hpa@zytor.com" <hpa@zytor.com>,
	"linux-perf-users@vger.kernel.org"
	<linux-perf-users@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: 答复: [外部邮件] Re: [PATCH] perf/x86/intel/bts: allocate bts_ctx only if necessary
Date: Thu, 6 Mar 2025 02:28:34 +0000	[thread overview]
Message-ID: <5ddaff2748344dc4ac6290f195c8758e@baidu.com> (raw)
In-Reply-To: <293158f0-d36f-4569-bad3-6be1db938457@intel.com>

> Jiri, thanks for the report!
> 
> On 3/5/25 06:58, Adrian Hunter wrote:
> > It looks like there are 3 functions affected:
> >
> > 	intel_bts_enable_local()
> > 	intel_bts_disable_local()
> > 	intel_bts_interrupt()
> >
> > Perhaps make them static calls?
> 
> That, or a few:
> 
> 	if (!bts_ctx)
> 		return;
> 
> if you're not feeling as fancy would do.
> 
> Would someone be interested in sending an actual tested patch, ideally the
> patch author of the regression? <hint, hint>


I am sorry to introduce this bug, I will try to send a patch

Thanks to all

-Li

      reply	other threads:[~2025-03-06  2:45 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-22  7:41 [PATCH] perf/x86/intel/bts: allocate bts_ctx only if necessary lirongqing
2025-01-23 18:36 ` Adrian Hunter
2025-01-23 18:54 ` Liang, Kan
2025-02-22 12:53 ` [tip: perf/core] perf/x86/intel/bts: Allocate " tip-bot2 for Li RongQing
2025-03-05 13:47 ` [PATCH] perf/x86/intel/bts: allocate " Jiri Olsa
2025-03-05 13:54   ` Jiri Olsa
2025-03-05 14:58     ` Adrian Hunter
2025-03-05 16:11       ` Dave Hansen
2025-03-06  2:28         ` Li,Rongqing [this message]

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