linux-kernel - Re: [PATCH -tip v2 1/5] [BUGFIX] kprobes: Fix selftest to clear flags field for reusing probes

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Date:	Wed, 19 May 2010 12:42:41 -0400
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	ananth@...ibm.com
CC:	Ingo Molnar <mingo@...e.hu>, lkml <linux-kernel@...r.kernel.org>,
	systemtap <systemtap@...rces.redhat.com>,
	DLE <dle-develop@...ts.sourceforge.net>,
	Jim Keniston <jkenisto@...ibm.com>,
	Jason Baron <jbaron@...hat.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [PATCH -tip v2 1/5] [BUGFIX] kprobes: Fix selftest to clear	flags
 field for reusing probes

Ananth N Mavinakayanahalli wrote:
> On Tue, May 18, 2010 at 04:12:51PM -0400, Masami Hiramatsu wrote:
>  
>>  kernel/test_kprobes.c |   12 +++++++++---
>>  1 files changed, 9 insertions(+), 3 deletions(-)
>>
>> diff --git a/kernel/test_kprobes.c b/kernel/test_kprobes.c
>> index 4f10451..ede20f4 100644
>> --- a/kernel/test_kprobes.c
>> +++ b/kernel/test_kprobes.c
>> @@ -115,7 +115,9 @@ static int test_kprobes(void)
>>  	int ret;
>>  	struct kprobe *kps[2] = {&kp, &kp2};
>>
>> -	kp.addr = 0; /* addr should be cleard for reusing kprobe. */
>> +	/* addr and flags should be cleard for reusing kprobe. */
>> +	kp.addr = 0;
> 
> kp.addr = NULL;

OK, I'll fix that (and below too).

Thank you!

> 
>> +	kp.flags = 0;
>>  	ret = register_kprobes(kps, 2);
>>  	if (ret < 0) {
>>  		printk(KERN_ERR "Kprobe smoke test failed: "
>> @@ -210,7 +212,9 @@ static int test_jprobes(void)
>>  	int ret;
>>  	struct jprobe *jps[2] = {&jp, &jp2};
>>
>> -	jp.kp.addr = 0; /* addr should be cleard for reusing kprobe. */
>> +	/* addr and flags should be cleard for reusing kprobe. */
>> +	jp.kp.addr = 0;
> 
> Same here...
> 
>> +	jp.kp.flags = 0;
>>  	ret = register_jprobes(jps, 2);
>>  	if (ret < 0) {
>>  		printk(KERN_ERR "Kprobe smoke test failed: "
>> @@ -323,7 +327,9 @@ static int test_kretprobes(void)
>>  	int ret;
>>  	struct kretprobe *rps[2] = {&rp, &rp2};
>>
>> -	rp.kp.addr = 0; /* addr should be cleard for reusing kprobe. */
>> +	/* addr and flags should be cleard for reusing kprobe. */
>> +	rp.kp.addr = 0;
> 
> Here too.
> 
> Ananth
> --
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-- 
Masami Hiramatsu
e-mail: mhiramat@...hat.com
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