linux-kernel - [tip:WIP.timers/core 50/68] include/linux/posix-timers.h:98:19: error: 'RLIM

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Message-ID: <201908200736.mfjTvi9x%lkp@intel.com>
Date:   Tue, 20 Aug 2019 07:37:39 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org, tipbuild@...or.com
Subject: [tip:WIP.timers/core 50/68] include/linux/posix-timers.h:98:19:
 error: 'RLIM_INFINITY' undeclared

tree:   https://kernel.googlesource.com/pub/scm/linux/kernel/git/tip/tip.git WIP.timers/core
head:   b16101077c4444bc7e0dde91e7ffb258ce1f979b
commit: 5ccda256adfd2674f96b6f7a90b2ea8aaddc46bd [50/68] posix-cpu-timers: Move expiry cache into struct posix_cputimers
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 5ccda256adfd2674f96b6f7a90b2ea8aaddc46bd
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=sparc64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from <command-line>:0:0:
   include/linux/posix-timers.h:82:22: error: field 'cputime_expires' has incomplete type
     struct task_cputime cputime_expires;
                         ^~~~~~~~~~~~~~~
   include/linux/posix-timers.h: In function 'posix_cputimers_group_init':
>> include/linux/posix-timers.h:98:19: error: 'RLIM_INFINITY' undeclared (first use in this function)
     if (cpu_limit != RLIM_INFINITY)
                      ^~~~~~~~~~~~~
   include/linux/posix-timers.h:98:19: note: each undeclared identifier is reported only once for each function it appears in

vim +/RLIM_INFINITY +98 include/linux/posix-timers.h

    72	
    73	#ifdef CONFIG_POSIX_TIMERS
    74	/**
    75	 * posix_cputimers - Container for posix CPU timer related data
    76	 * @cputime_expires:	Earliest-expiration cache
    77	 * @cpu_timers:		List heads to queue posix CPU timers
    78	 *
    79	 * Used in task_struct and signal_struct
    80	 */
    81	struct posix_cputimers {
  > 82		struct task_cputime	cputime_expires;
    83		struct list_head	cpu_timers[CPUCLOCK_MAX];
    84	};
    85	
    86	static inline void posix_cputimers_init(struct posix_cputimers *pct)
    87	{
    88		memset(&pct->cputime_expires, 0, sizeof(pct->cputime_expires));
    89		INIT_LIST_HEAD(&pct->cpu_timers[0]);
    90		INIT_LIST_HEAD(&pct->cpu_timers[1]);
    91		INIT_LIST_HEAD(&pct->cpu_timers[2]);
    92	}
    93	
    94	static inline void posix_cputimers_group_init(struct posix_cputimers *pct,
    95						      u64 cpu_limit)
    96	{
    97		posix_cputimers_init(pct);
  > 98		if (cpu_limit != RLIM_INFINITY)
    99			pct->cputime_expires.prof_exp = cpu_limit * NSEC_PER_SEC;
   100	}
   101	

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