linux-kernel - [ammarfaizi2-block:paulmck/linux-rcu/dev.2022.02.01a 77/103] kernel/rcu/srcutree.c:424:5: error: 'struct srcu_struct' has no member named 'srcu_size

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Message-ID: <202202031012.PzmEcyQ4-lkp@intel.com>
Date:   Thu, 3 Feb 2022 11:00:18 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     kbuild-all@...ts.01.org,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:paulmck/linux-rcu/dev.2022.02.01a 77/103]
 kernel/rcu/srcutree.c:424:5: error: 'struct srcu_struct' has no member named
 'srcu_size_state'

tree:   https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/dev.2022.02.01a
head:   5721fe42e5e76b24e5a37c4fb5a4807cd4eb925d
commit: efbdb910e14b15835266c55ad4d891dde0792aed [77/103] srcu: Dynamically allocate srcu_node array
config: i386-randconfig-a004-20211220 (https://download.01.org/0day-ci/archive/20220203/202202031012.PzmEcyQ4-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/ammarfaizi2/linux-block/commit/efbdb910e14b15835266c55ad4d891dde0792aed
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block paulmck/linux-rcu/dev.2022.02.01a
        git checkout efbdb910e14b15835266c55ad4d891dde0792aed
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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

Note: the ammarfaizi2-block/paulmck/linux-rcu/dev.2022.02.01a HEAD 5721fe42e5e76b24e5a37c4fb5a4807cd4eb925d builds fine.
      It only hurts bisectability.

All errors (new ones prefixed by >>):

   kernel/rcu/srcutree.c: In function 'cleanup_srcu_struct':
>> kernel/rcu/srcutree.c:424:5: error: 'struct srcu_struct' has no member named 'srcu_size_state'
     424 |  ssp->srcu_size_state = SRCU_SIZE_SMALL;
         |     ^~
>> kernel/rcu/srcutree.c:424:25: error: 'SRCU_SIZE_SMALL' undeclared (first use in this function)
     424 |  ssp->srcu_size_state = SRCU_SIZE_SMALL;
         |                         ^~~~~~~~~~~~~~~
   kernel/rcu/srcutree.c:424:25: note: each undeclared identifier is reported only once for each function it appears in


vim +424 kernel/rcu/srcutree.c

   387	
   388	/**
   389	 * cleanup_srcu_struct - deconstruct a sleep-RCU structure
   390	 * @ssp: structure to clean up.
   391	 *
   392	 * Must invoke this after you are finished using a given srcu_struct that
   393	 * was initialized via init_srcu_struct(), else you leak memory.
   394	 */
   395	void cleanup_srcu_struct(struct srcu_struct *ssp)
   396	{
   397		int cpu;
   398	
   399		if (WARN_ON(!srcu_get_delay(ssp)))
   400			return; /* Just leak it! */
   401		if (WARN_ON(srcu_readers_active(ssp)))
   402			return; /* Just leak it! */
   403		flush_delayed_work(&ssp->work);
   404		for_each_possible_cpu(cpu) {
   405			struct srcu_data *sdp = per_cpu_ptr(ssp->sda, cpu);
   406	
   407			del_timer_sync(&sdp->delay_work);
   408			flush_work(&sdp->work);
   409			if (WARN_ON(rcu_segcblist_n_cbs(&sdp->srcu_cblist)))
   410				return; /* Forgot srcu_barrier(), so just leak it! */
   411		}
   412		if (WARN_ON(rcu_seq_state(READ_ONCE(ssp->srcu_gp_seq)) != SRCU_STATE_IDLE) ||
   413		    WARN_ON(rcu_seq_current(&ssp->srcu_gp_seq) != ssp->srcu_gp_seq_needed) ||
   414		    WARN_ON(srcu_readers_active(ssp))) {
   415			pr_info("%s: Active srcu_struct %p read state: %d gp state: %lu/%lu\n",
   416				__func__, ssp, rcu_seq_state(READ_ONCE(ssp->srcu_gp_seq)),
   417				rcu_seq_current(&ssp->srcu_gp_seq), ssp->srcu_gp_seq_needed);
   418			return; /* Caller forgot to stop doing call_srcu()? */
   419		}
   420		free_percpu(ssp->sda);
   421		ssp->sda = NULL;
   422		kfree(ssp->node);
   423		ssp->node = NULL;
 > 424		ssp->srcu_size_state = SRCU_SIZE_SMALL;
   425	}
   426	EXPORT_SYMBOL_GPL(cleanup_srcu_struct);
   427	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org