linux-kernel - kernel/trace/trace_irqsoff.c:855:2: error: implicit declaration of function 'trace_preempt_enable_rcuidle'; did you mean 'trace_irq_enable

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Message-ID: <201712040221.ZKxt1Au3%fengguang.wu@intel.com>
Date:   Mon, 4 Dec 2017 02:53:29 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Joel Fernandes <joelaf@...gle.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>
Subject: kernel/trace/trace_irqsoff.c:855:2: error: implicit declaration of
 function 'trace_preempt_enable_rcuidle'; did you mean
 'trace_irq_enable_rcuidle'?

Hi Joel,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ae64f9bd1d3621b5e60d7363bc20afb46aede215
commit: d59158162e032917a428704160a2063a02405ec6 tracing: Add support for preempt and irq enable/disable events
date:   8 weeks ago
config: x86_64-randconfig-x001-201749 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
        git checkout d59158162e032917a428704160a2063a02405ec6
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   kernel/trace/trace_irqsoff.c: In function 'trace_preempt_on':
>> kernel/trace/trace_irqsoff.c:855:2: error: implicit declaration of function 'trace_preempt_enable_rcuidle'; did you mean 'trace_irq_enable_rcuidle'? [-Werror=implicit-function-declaration]
     trace_preempt_enable_rcuidle(a0, a1);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
     trace_irq_enable_rcuidle
   kernel/trace/trace_irqsoff.c: In function 'trace_preempt_off':
>> kernel/trace/trace_irqsoff.c:861:2: error: implicit declaration of function 'trace_preempt_disable_rcuidle'; did you mean 'trace_irq_disable_rcuidle'? [-Werror=implicit-function-declaration]
     trace_preempt_disable_rcuidle(a0, a1);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     trace_irq_disable_rcuidle
   cc1: some warnings being treated as errors

vim +855 kernel/trace/trace_irqsoff.c

   850	
   851	#if defined(CONFIG_PREEMPT_TRACER) || \
   852		(defined(CONFIG_DEBUG_PREEMPT) && defined(CONFIG_PREEMPTIRQ_EVENTS))
   853	void trace_preempt_on(unsigned long a0, unsigned long a1)
   854	{
 > 855		trace_preempt_enable_rcuidle(a0, a1);
   856		tracer_preempt_on(a0, a1);
   857	}
   858	
   859	void trace_preempt_off(unsigned long a0, unsigned long a1)
   860	{
 > 861		trace_preempt_disable_rcuidle(a0, a1);

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