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Date:   Mon, 6 Feb 2017 14:16:01 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org, tipbuild@...or.com
Subject: [tip:WIP.sched/core 118/162] arch/mips/sgi-ip27/ip27-smp.c:197:21:
 note: in expansion of macro '__KSTK_TOS'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/core
head:   38c7fc1c938c469af27c032bf4eab0c4aaf4eba1
commit: d8c081caed34b16d17d639fa49889d2b7b22c9b0 [118/162] sched/headers: Remove <asm/ptrace.h> from <linux/sched.h>
config: mips-ip27_defconfig (attached as .config)
compiler: mips64-linux-gnuabi64-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout d8c081caed34b16d17d639fa49889d2b7b22c9b0
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All warnings (new ones prefixed by >>):

   In file included from arch/mips/include/asm/thread_info.h:15:0,
                    from include/linux/thread_info.h:25,
                    from include/asm-generic/preempt.h:4,
                    from ./arch/mips/include/generated/asm/preempt.h:1,
                    from include/linux/preempt.h:59,
                    from include/linux/spinlock.h:50,
                    from include/linux/seqlock.h:35,
                    from include/linux/time.h:5,
                    from include/uapi/linux/timex.h:56,
                    from include/linux/timex.h:56,
                    from include/linux/sched.h:13,
                    from arch/mips/sgi-ip27/ip27-smp.c:10:
   arch/mips/sgi-ip27/ip27-smp.c: In function 'ip27_boot_secondary':
   arch/mips/include/asm/processor.h:385:31: error: invalid application of 'sizeof' to incomplete type 'struct pt_regs'
        THREAD_SIZE - 32 - sizeof(struct pt_regs))
                                  ^
>> arch/mips/sgi-ip27/ip27-smp.c:197:21: note: in expansion of macro '__KSTK_TOS'
     unsigned long sp = __KSTK_TOS(idle);
                        ^~~~~~~~~~

vim +/__KSTK_TOS +197 arch/mips/sgi-ip27/ip27-smp.c

^1da177e Linus Torvalds      2005-04-16    4   * archive for more details.
^1da177e Linus Torvalds      2005-04-16    5   *
^1da177e Linus Torvalds      2005-04-16    6   * Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@....com)
^1da177e Linus Torvalds      2005-04-16    7   * Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
^1da177e Linus Torvalds      2005-04-16    8   */
^1da177e Linus Torvalds      2005-04-16    9  #include <linux/init.h>
^1da177e Linus Torvalds      2005-04-16  @10  #include <linux/sched.h>
^1da177e Linus Torvalds      2005-04-16   11  #include <linux/nodemask.h>
^1da177e Linus Torvalds      2005-04-16   12  #include <asm/page.h>
^1da177e Linus Torvalds      2005-04-16   13  #include <asm/processor.h>
^1da177e Linus Torvalds      2005-04-16   14  #include <asm/sn/arch.h>
^1da177e Linus Torvalds      2005-04-16   15  #include <asm/sn/gda.h>
^1da177e Linus Torvalds      2005-04-16   16  #include <asm/sn/intr.h>
^1da177e Linus Torvalds      2005-04-16   17  #include <asm/sn/klconfig.h>
^1da177e Linus Torvalds      2005-04-16   18  #include <asm/sn/launch.h>
^1da177e Linus Torvalds      2005-04-16   19  #include <asm/sn/mapped_kernel.h>
^1da177e Linus Torvalds      2005-04-16   20  #include <asm/sn/sn_private.h>
^1da177e Linus Torvalds      2005-04-16   21  #include <asm/sn/types.h>
^1da177e Linus Torvalds      2005-04-16   22  #include <asm/sn/sn0/hubpi.h>
^1da177e Linus Torvalds      2005-04-16   23  #include <asm/sn/sn0/hubio.h>
^1da177e Linus Torvalds      2005-04-16   24  #include <asm/sn/sn0/ip27.h>
^1da177e Linus Torvalds      2005-04-16   25  
^1da177e Linus Torvalds      2005-04-16   26  /*
^1da177e Linus Torvalds      2005-04-16   27   * Takes as first input the PROM assigned cpu id, and the kernel
^1da177e Linus Torvalds      2005-04-16   28   * assigned cpu id as the second.
^1da177e Linus Torvalds      2005-04-16   29   */
^1da177e Linus Torvalds      2005-04-16   30  static void alloc_cpupda(cpuid_t cpu, int cpunum)
^1da177e Linus Torvalds      2005-04-16   31  {
^1da177e Linus Torvalds      2005-04-16   32  	cnodeid_t node = get_cpu_cnode(cpu);
^1da177e Linus Torvalds      2005-04-16   33  	nasid_t nasid = COMPACT_TO_NASID_NODEID(node);
^1da177e Linus Torvalds      2005-04-16   34  
^1da177e Linus Torvalds      2005-04-16   35  	cputonasid(cpunum) = nasid;
cc6e8e08 Ralf Baechle        2007-10-11   36  	sn_cpu_info[cpunum].p_nodeid = node;
^1da177e Linus Torvalds      2005-04-16   37  	cputoslice(cpunum) = get_cpu_slice(cpu);
^1da177e Linus Torvalds      2005-04-16   38  }
^1da177e Linus Torvalds      2005-04-16   39  
^1da177e Linus Torvalds      2005-04-16   40  static nasid_t get_actual_nasid(lboard_t *brd)
^1da177e Linus Torvalds      2005-04-16   41  {
^1da177e Linus Torvalds      2005-04-16   42  	klhub_t *hub;
^1da177e Linus Torvalds      2005-04-16   43  
^1da177e Linus Torvalds      2005-04-16   44  	if (!brd)
^1da177e Linus Torvalds      2005-04-16   45  		return INVALID_NASID;
^1da177e Linus Torvalds      2005-04-16   46  
^1da177e Linus Torvalds      2005-04-16   47  	/* find out if we are a completely disabled brd. */
^1da177e Linus Torvalds      2005-04-16   48  	hub  = (klhub_t *)find_first_component(brd, KLSTRUCT_HUB);
^1da177e Linus Torvalds      2005-04-16   49  	if (!hub)
^1da177e Linus Torvalds      2005-04-16   50  		return INVALID_NASID;
^1da177e Linus Torvalds      2005-04-16   51  	if (!(hub->hub_info.flags & KLINFO_ENABLE))	/* disabled node brd */
^1da177e Linus Torvalds      2005-04-16   52  		return hub->hub_info.physid;
^1da177e Linus Torvalds      2005-04-16   53  	else
^1da177e Linus Torvalds      2005-04-16   54  		return brd->brd_nasid;
^1da177e Linus Torvalds      2005-04-16   55  }
^1da177e Linus Torvalds      2005-04-16   56  
^1da177e Linus Torvalds      2005-04-16   57  static int do_cpumask(cnodeid_t cnode, nasid_t nasid, int highest)
^1da177e Linus Torvalds      2005-04-16   58  {
^1da177e Linus Torvalds      2005-04-16   59  	static int tot_cpus_found = 0;
^1da177e Linus Torvalds      2005-04-16   60  	lboard_t *brd;
^1da177e Linus Torvalds      2005-04-16   61  	klcpu_t *acpu;
^1da177e Linus Torvalds      2005-04-16   62  	int cpus_found = 0;
^1da177e Linus Torvalds      2005-04-16   63  	cpuid_t cpuid;
^1da177e Linus Torvalds      2005-04-16   64  
^1da177e Linus Torvalds      2005-04-16   65  	brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27);
^1da177e Linus Torvalds      2005-04-16   66  
^1da177e Linus Torvalds      2005-04-16   67  	do {
^1da177e Linus Torvalds      2005-04-16   68  		acpu = (klcpu_t *)find_first_component(brd, KLSTRUCT_CPU);
^1da177e Linus Torvalds      2005-04-16   69  		while (acpu) {
^1da177e Linus Torvalds      2005-04-16   70  			cpuid = acpu->cpu_info.virtid;
^1da177e Linus Torvalds      2005-04-16   71  			/* cnode is not valid for completely disabled brds */
^1da177e Linus Torvalds      2005-04-16   72  			if (get_actual_nasid(brd) == brd->brd_nasid)
^1da177e Linus Torvalds      2005-04-16   73  				cpuid_to_compact_node[cpuid] = cnode;
^1da177e Linus Torvalds      2005-04-16   74  			if (cpuid > highest)
^1da177e Linus Torvalds      2005-04-16   75  				highest = cpuid;
^1da177e Linus Torvalds      2005-04-16   76  			/* Only let it join in if it's marked enabled */
^1da177e Linus Torvalds      2005-04-16   77  			if ((acpu->cpu_info.flags & KLINFO_ENABLE) &&
^1da177e Linus Torvalds      2005-04-16   78  			    (tot_cpus_found != NR_CPUS)) {
0b5f9c00 Rusty Russell       2012-03-29   79  				set_cpu_possible(cpuid, true);
^1da177e Linus Torvalds      2005-04-16   80  				alloc_cpupda(cpuid, tot_cpus_found);
^1da177e Linus Torvalds      2005-04-16   81  				cpus_found++;
^1da177e Linus Torvalds      2005-04-16   82  				tot_cpus_found++;
^1da177e Linus Torvalds      2005-04-16   83  			}
^1da177e Linus Torvalds      2005-04-16   84  			acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu,
^1da177e Linus Torvalds      2005-04-16   85  								KLSTRUCT_CPU);
^1da177e Linus Torvalds      2005-04-16   86  		}
^1da177e Linus Torvalds      2005-04-16   87  		brd = KLCF_NEXT(brd);
^1da177e Linus Torvalds      2005-04-16   88  		if (!brd)
^1da177e Linus Torvalds      2005-04-16   89  			break;
^1da177e Linus Torvalds      2005-04-16   90  
^1da177e Linus Torvalds      2005-04-16   91  		brd = find_lboard(brd, KLTYPE_IP27);
^1da177e Linus Torvalds      2005-04-16   92  	} while (brd);
^1da177e Linus Torvalds      2005-04-16   93  
^1da177e Linus Torvalds      2005-04-16   94  	return highest;
^1da177e Linus Torvalds      2005-04-16   95  }
^1da177e Linus Torvalds      2005-04-16   96  
^1da177e Linus Torvalds      2005-04-16   97  void cpu_node_probe(void)
^1da177e Linus Torvalds      2005-04-16   98  {
^1da177e Linus Torvalds      2005-04-16   99  	int i, highest = 0;
^1da177e Linus Torvalds      2005-04-16  100  	gda_t *gdap = GDA;
^1da177e Linus Torvalds      2005-04-16  101  
^1da177e Linus Torvalds      2005-04-16  102  	/*
^1da177e Linus Torvalds      2005-04-16  103  	 * Initialize the arrays to invalid nodeid (-1)
^1da177e Linus Torvalds      2005-04-16  104  	 */
^1da177e Linus Torvalds      2005-04-16  105  	for (i = 0; i < MAX_COMPACT_NODES; i++)
^1da177e Linus Torvalds      2005-04-16  106  		compact_to_nasid_node[i] = INVALID_NASID;
^1da177e Linus Torvalds      2005-04-16  107  	for (i = 0; i < MAX_NASIDS; i++)
^1da177e Linus Torvalds      2005-04-16  108  		nasid_to_compact_node[i] = INVALID_CNODEID;
^1da177e Linus Torvalds      2005-04-16  109  	for (i = 0; i < MAXCPUS; i++)
^1da177e Linus Torvalds      2005-04-16  110  		cpuid_to_compact_node[i] = INVALID_CNODEID;
^1da177e Linus Torvalds      2005-04-16  111  
^1da177e Linus Torvalds      2005-04-16  112  	/*
^1da177e Linus Torvalds      2005-04-16  113  	 * MCD - this whole "compact node" stuff can probably be dropped,
^1da177e Linus Torvalds      2005-04-16  114  	 * as we can handle sparse numbering now
^1da177e Linus Torvalds      2005-04-16  115  	 */
^1da177e Linus Torvalds      2005-04-16  116  	nodes_clear(node_online_map);
^1da177e Linus Torvalds      2005-04-16  117  	for (i = 0; i < MAX_COMPACT_NODES; i++) {
^1da177e Linus Torvalds      2005-04-16  118  		nasid_t nasid = gdap->g_nasidtable[i];
^1da177e Linus Torvalds      2005-04-16  119  		if (nasid == INVALID_NASID)
^1da177e Linus Torvalds      2005-04-16  120  			break;
^1da177e Linus Torvalds      2005-04-16  121  		compact_to_nasid_node[i] = nasid;
^1da177e Linus Torvalds      2005-04-16  122  		nasid_to_compact_node[nasid] = i;
^1da177e Linus Torvalds      2005-04-16  123  		node_set_online(num_online_nodes());
^1da177e Linus Torvalds      2005-04-16  124  		highest = do_cpumask(i, nasid, highest);
^1da177e Linus Torvalds      2005-04-16  125  	}
^1da177e Linus Torvalds      2005-04-16  126  
^1da177e Linus Torvalds      2005-04-16  127  	printk("Discovered %d cpus on %d nodes\n", highest + 1, num_online_nodes());
^1da177e Linus Torvalds      2005-04-16  128  }
^1da177e Linus Torvalds      2005-04-16  129  
39408c6a Ralf Baechle        2005-02-13  130  static __init void intr_clear_all(nasid_t nasid)
^1da177e Linus Torvalds      2005-04-16  131  {
^1da177e Linus Torvalds      2005-04-16  132  	int i;
^1da177e Linus Torvalds      2005-04-16  133  
^1da177e Linus Torvalds      2005-04-16  134  	REMOTE_HUB_S(nasid, PI_INT_MASK0_A, 0);
^1da177e Linus Torvalds      2005-04-16  135  	REMOTE_HUB_S(nasid, PI_INT_MASK0_B, 0);
^1da177e Linus Torvalds      2005-04-16  136  	REMOTE_HUB_S(nasid, PI_INT_MASK1_A, 0);
^1da177e Linus Torvalds      2005-04-16  137  	REMOTE_HUB_S(nasid, PI_INT_MASK1_B, 0);
39408c6a Ralf Baechle        2005-02-13  138  
39408c6a Ralf Baechle        2005-02-13  139  	for (i = 0; i < 128; i++)
39408c6a Ralf Baechle        2005-02-13  140  		REMOTE_HUB_CLR_INTR(nasid, i);
^1da177e Linus Torvalds      2005-04-16  141  }
^1da177e Linus Torvalds      2005-04-16  142  
87353d8a Ralf Baechle        2007-11-19  143  static void ip27_send_ipi_single(int destid, unsigned int action)
^1da177e Linus Torvalds      2005-04-16  144  {
87353d8a Ralf Baechle        2007-11-19  145  	int irq;
^1da177e Linus Torvalds      2005-04-16  146  
87353d8a Ralf Baechle        2007-11-19  147  	switch (action) {
87353d8a Ralf Baechle        2007-11-19  148  	case SMP_RESCHEDULE_YOURSELF:
87353d8a Ralf Baechle        2007-11-19  149  		irq = CPU_RESCHED_A_IRQ;
87353d8a Ralf Baechle        2007-11-19  150  		break;
87353d8a Ralf Baechle        2007-11-19  151  	case SMP_CALL_FUNCTION:
87353d8a Ralf Baechle        2007-11-19  152  		irq = CPU_CALL_A_IRQ;
87353d8a Ralf Baechle        2007-11-19  153  		break;
87353d8a Ralf Baechle        2007-11-19  154  	default:
87353d8a Ralf Baechle        2007-11-19  155  		panic("sendintr");
de1db6ff Ralf Baechle        2005-02-13  156  	}
^1da177e Linus Torvalds      2005-04-16  157  
87353d8a Ralf Baechle        2007-11-19  158  	irq += cputoslice(destid);
^1da177e Linus Torvalds      2005-04-16  159  
^1da177e Linus Torvalds      2005-04-16  160  	/*
87353d8a Ralf Baechle        2007-11-19  161  	 * Convert the compact hub number to the NASID to get the correct
87353d8a Ralf Baechle        2007-11-19  162  	 * part of the address space.  Then set the interrupt bit associated
87353d8a Ralf Baechle        2007-11-19  163  	 * with the CPU we want to send the interrupt to.
^1da177e Linus Torvalds      2005-04-16  164  	 */
87353d8a Ralf Baechle        2007-11-19  165  	REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq);
^1da177e Linus Torvalds      2005-04-16  166  }
^1da177e Linus Torvalds      2005-04-16  167  
b533e652 Ralf Baechle        2009-09-25  168  static void ip27_send_ipi_mask(const struct cpumask *mask, unsigned int action)
87353d8a Ralf Baechle        2007-11-19  169  {
87353d8a Ralf Baechle        2007-11-19  170  	unsigned int i;
87353d8a Ralf Baechle        2007-11-19  171  
48a048fe Rusty Russell       2009-09-24  172  	for_each_cpu(i, mask)
87353d8a Ralf Baechle        2007-11-19  173  		ip27_send_ipi_single(i, action);
87353d8a Ralf Baechle        2007-11-19  174  }
87353d8a Ralf Baechle        2007-11-19  175  
078a55fc Paul Gortmaker      2013-06-18  176  static void ip27_init_secondary(void)
87353d8a Ralf Baechle        2007-11-19  177  {
87353d8a Ralf Baechle        2007-11-19  178  	per_cpu_init();
87353d8a Ralf Baechle        2007-11-19  179  }
87353d8a Ralf Baechle        2007-11-19  180  
078a55fc Paul Gortmaker      2013-06-18  181  static void ip27_smp_finish(void)
87353d8a Ralf Baechle        2007-11-19  182  {
b32bb803 Thomas Bogendoerfer 2008-04-08  183  	extern void hub_rt_clock_event_init(void);
b32bb803 Thomas Bogendoerfer 2008-04-08  184  
b32bb803 Thomas Bogendoerfer 2008-04-08  185  	hub_rt_clock_event_init();
b32bb803 Thomas Bogendoerfer 2008-04-08  186  	local_irq_enable();
87353d8a Ralf Baechle        2007-11-19  187  }
87353d8a Ralf Baechle        2007-11-19  188  
^1da177e Linus Torvalds      2005-04-16  189  /*
^1da177e Linus Torvalds      2005-04-16  190   * Launch a slave into smp_bootstrap().	 It doesn't take an argument, and we
^1da177e Linus Torvalds      2005-04-16  191   * set sp to the kernel stack of the newly created idle process, gp to the proc
^1da177e Linus Torvalds      2005-04-16  192   * struct so that current_thread_info() will work.
^1da177e Linus Torvalds      2005-04-16  193   */
078a55fc Paul Gortmaker      2013-06-18  194  static void ip27_boot_secondary(int cpu, struct task_struct *idle)
^1da177e Linus Torvalds      2005-04-16  195  {
dc8f6029 Al Viro             2006-01-12  196  	unsigned long gp = (unsigned long)task_thread_info(idle);
dc8f6029 Al Viro             2006-01-12 @197  	unsigned long sp = __KSTK_TOS(idle);
^1da177e Linus Torvalds      2005-04-16  198  
^1da177e Linus Torvalds      2005-04-16  199  	LAUNCH_SLAVE(cputonasid(cpu), cputoslice(cpu),
^1da177e Linus Torvalds      2005-04-16  200  		(launch_proc_t)MAPPED_KERN_RW_TO_K0(smp_bootstrap),

:::::: The code at line 197 was first introduced by commit
:::::: dc8f6029cd51af1b148846a32e68d69013a5cc0f [PATCH] mips: task_thread_info()

:::::: TO: Al Viro <viro@....linux.org.uk>
:::::: CC: Linus Torvalds <torvalds@...osdl.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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