linux-kernel - Re: [PATCH] tracing: Verify event formats that have "%*p.."

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Message-ID: <1c580335-a794-4307-a24f-39236064f8e8@oracle.com>
Date: Thu, 27 Mar 2025 14:35:20 -0700
From: Libo Chen <libo.chen@...cle.com>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
        Linux Trace Kernel <linux-trace-kernel@...r.kernel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [PATCH] tracing: Verify event formats that have "%*p.."



On 3/27/25 14:20, Steven Rostedt wrote:
> On Thu, 27 Mar 2025 14:00:44 -0700
> Libo Chen <libo.chen@...cle.com> wrote:
> 
>>> Ah yeah. I'll update. Note, this isn't going to go into the kernel until at
>>> least 6.16.
>>>   
>>
>> Okay thanks for the note. I will stick to %lx for now and change it to %*pbl
>> once this gets in.
> 
> This shouldn't be a blocker for you. Do you get any errors?
> 
> Hmm, if this causes bugs (perhaps you have arguments after the %*pbl) then
> I can add this as a fix and not an enhancement.

Not sure if I will call it an error. But without this patch, I will just get
"nil" when using %*p so this information is lost here. If I go ahead with
%*pbl, nodemask value will not show up in the trace until this one is merged.

Libo

> 
> -- Steve