linux-kernel - Re: drivers/gpu/drm/i915/i915.prelink.o: warning: objtool: __intel_wait_for_register_fw.cold()+0xce: relocation to !ENDBR: vlv_allow_gt

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Date:   Wed, 6 Apr 2022 15:44:13 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        kernel test robot <lkp@...el.com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, mbenes@...e.cz, x86@...nel.org
Subject: Re: drivers/gpu/drm/i915/i915.prelink.o: warning: objtool:
 __intel_wait_for_register_fw.cold()+0xce: relocation to !ENDBR:
 vlv_allow_gt_wake.cold+0x0

Em Tue, Apr 05, 2022 at 09:20:32PM -0400, Steven Rostedt escreveu:
> On Wed, 06 Apr 2022 02:46:22 +0200
> Thomas Gleixner <tglx@...utronix.de> wrote:
> 
> > This covers the trace_printk() case which uses do_trace_printk(), but
> > the same problem exists in trace_puts() and ftrace_vprintk()...., no?
> 
> Hmm, I'm not even sure why ftrace_vprintk() is there. It seems redundant.
> 
> Arnaldo,
> 
> Was there a reason for it. The commit that added it isn't very descriptive.

Yeah, I was young and in a hurry.

- Arnaldo
 
> commit 9011262a37cb438f0fa9394b5e83840db8f9680a
> Author: Arnaldo Carvalho de Melo <acme@...hat.com>
> Date:   Fri Jan 23 12:06:23 2009 -0200
> 
>     ftrace: add ftrace_vprintk
>     
>     Impact: new helper function
>     
>     Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
>     Signed-off-by: Ingo Molnar <mingo@...e.hu>
> 
> 
> -- Steve

-- 

- Arnaldo