Hi,

[auto build test ERROR on tip/timers/core]
[also build test ERROR on v4.7-rc3 next-20160615]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improve the system]

url:    
https://github.com/0day-ci/linux/commits/Neil-Armstrong/clocksource-Add-support-for-Oxford-Semiconductor-RPS-Dual-Timer/20160615-181650
config: ia64-allyesconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 4.9.0
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
        # save the attached .config to linux build tree
        make.cross ARCH=ia64 

All error/warnings (new ones prefixed by >>):

>> drivers/clocksource/timer-oxnas-rps.c:62:28: error: field 'clkevent' has 
>> incomplete type
     struct clock_event_device clkevent;
                               ^
   In file included from include/linux/list.h:8:0,
                    from include/linux/smp.h:11,
                    from include/linux/irq.h:12,
                    from drivers/clocksource/timer-oxnas-rps.c:24:
   drivers/clocksource/timer-oxnas-rps.c: In function 
'oxnas_rps_timer_shutdown':
   include/linux/kernel.h:831:48: warning: initialization from incompatible 
pointer type
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
>> drivers/clocksource/timer-oxnas-rps.c:101:3: note: in expansion of macro 
>> 'container_of'
      container_of(evt, struct oxnas_rps_timer, clkevent);
      ^
   include/linux/kernel.h:831:48: warning: (near initialization for 'rps')
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
>> drivers/clocksource/timer-oxnas-rps.c:101:3: note: in expansion of macro 
>> 'container_of'
      container_of(evt, struct oxnas_rps_timer, clkevent);
      ^
   drivers/clocksource/timer-oxnas-rps.c: In function 
'oxnas_rps_timer_set_periodic':
   include/linux/kernel.h:831:48: warning: initialization from incompatible 
pointer type
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
   drivers/clocksource/timer-oxnas-rps.c:111:3: note: in expansion of macro 
'container_of'
      container_of(evt, struct oxnas_rps_timer, clkevent);
      ^
   include/linux/kernel.h:831:48: warning: (near initialization for 'rps')
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
   drivers/clocksource/timer-oxnas-rps.c:111:3: note: in expansion of macro 
'container_of'
      container_of(evt, struct oxnas_rps_timer, clkevent);
      ^
   drivers/clocksource/timer-oxnas-rps.c: In function 
'oxnas_rps_timer_set_oneshot':
   include/linux/kernel.h:831:48: warning: initialization from incompatible 
pointer type
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
   drivers/clocksource/timer-oxnas-rps.c:121:3: note: in expansion of macro 
'container_of'
      container_of(evt, struct oxnas_rps_timer, clkevent);
      ^
   include/linux/kernel.h:831:48: warning: (near initialization for 'rps')
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
   drivers/clocksource/timer-oxnas-rps.c:121:3: note: in expansion of macro 
'container_of'
      container_of(evt, struct oxnas_rps_timer, clkevent);
      ^
   drivers/clocksource/timer-oxnas-rps.c: In function 
'oxnas_rps_timer_next_event':
   include/linux/kernel.h:831:48: warning: initialization from incompatible 
pointer type
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
   drivers/clocksource/timer-oxnas-rps.c:132:3: note: in expansion of macro 
'container_of'
      container_of(evt, struct oxnas_rps_timer, clkevent);
      ^
   include/linux/kernel.h:831:48: warning: (near initialization for 'rps')
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
   drivers/clocksource/timer-oxnas-rps.c:132:3: note: in expansion of macro 
'container_of'
      container_of(evt, struct oxnas_rps_timer, clkevent);
      ^
   drivers/clocksource/timer-oxnas-rps.c: In function 
'oxnas_rps_clockevent_init':
>> drivers/clocksource/timer-oxnas-rps.c:161:27: error: 
>> 'CLOCK_EVT_FEAT_PERIODIC' undeclared (first use in this function)
     rps->clkevent.features = CLOCK_EVT_FEAT_PERIODIC |
                              ^
   drivers/clocksource/timer-oxnas-rps.c:161:27: note: each undeclared 
identifier is reported only once for each function it appears in
>> drivers/clocksource/timer-oxnas-rps.c:162:6: error: 'CLOCK_EVT_FEAT_ONESHOT' 
>> undeclared (first use in this function)
         CLOCK_EVT_FEAT_ONESHOT |
         ^
>> drivers/clocksource/timer-oxnas-rps.c:163:6: error: 'CLOCK_EVT_FEAT_DYNIRQ' 
>> undeclared (first use in this function)
         CLOCK_EVT_FEAT_DYNIRQ;
         ^
>> drivers/clocksource/timer-oxnas-rps.c:172:2: error: implicit declaration of 
>> function 'clockevents_config_and_register' 
>> [-Werror=implicit-function-declaration]
     clockevents_config_and_register(&rps->clkevent,
     ^
   drivers/clocksource/timer-oxnas-rps.c: In function 
'oxnas_rps_clocksource_init':
>> drivers/clocksource/timer-oxnas-rps.c:209:2: error: implicit declaration of 
>> function 'clocksource_mmio_init' [-Werror=implicit-function-declaration]
     ret = clocksource_mmio_init(timer_sched_base,
     ^
>> drivers/clocksource/timer-oxnas-rps.c:212:9: error: 
>> 'clocksource_mmio_readl_down' undeclared (first use in this function)
            clocksource_mmio_readl_down);
            ^
   drivers/clocksource/timer-oxnas-rps.c: At top level:
>> drivers/clocksource/timer-oxnas-rps.c:290:10: error: expected ')' before 
>> string constant
             "oxsemi,ox810se-rps-timer", oxnas_rps_timer_init);
             ^
   drivers/clocksource/timer-oxnas-rps.c:223:20: warning: 
'oxnas_rps_timer_init' defined but not used [-Wunused-function]
    static void __init oxnas_rps_timer_init(struct device_node *np)
                       ^
   cc1: some warnings being treated as errors

vim +/clkevent +62 drivers/clocksource/timer-oxnas-rps.c

    18   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    19   */
    20  
    21  #define pr_fmt(fmt)     KBUILD_MODNAME ": " fmt
    22  
    23  #include <linux/init.h>
  > 24  #include <linux/irq.h>
    25  #include <linux/io.h>
    26  #include <linux/clk.h>
    27  #include <linux/slab.h>
    28  #include <linux/interrupt.h>
    29  #include <linux/of_irq.h>
    30  #include <linux/of_address.h>
    31  #include <linux/clockchips.h>
    32  #include <linux/sched_clock.h>
    33  
    34  /* TIMER1 used as tick
    35   * TIMER2 used as clocksource
    36   */
    37  
    38  /* Registers definitions */
    39  
    40  #define TIMER_LOAD_REG          0x0
    41  #define TIMER_CURR_REG          0x4
    42  #define TIMER_CTRL_REG          0x8
    43  #define TIMER_CLRINT_REG        0xC
    44  
    45  #define TIMER_BITS              24
    46  
    47  #define TIMER_MAX_VAL           (BIT(TIMER_BITS) - 1)
    48  
    49  #define TIMER_PERIODIC          BIT(6)
    50  #define TIMER_ENABLE            BIT(7)
    51  
    52  #define TIMER_DIV1              (0)
    53  #define TIMER_DIV16             (1 << 2)
    54  #define TIMER_DIV256            (2 << 2)
    55  
    56  #define TIMER1_REG_OFFSET       0
    57  #define TIMER2_REG_OFFSET       0x20
    58  
    59  /* Clockevent & Clocksource data */
    60  
    61  struct oxnas_rps_timer {
  > 62          struct clock_event_device clkevent;
    63          void __iomem *clksrc_base;
    64          void __iomem *clkevt_base;
    65          unsigned long timer_period;
    66          unsigned int timer_prescaler;
    67          struct clk *clk;
    68          int irq;
    69  };
    70  
    71  static irqreturn_t oxnas_rps_timer_irq(int irq, void *dev_id)
    72  {
    73          struct oxnas_rps_timer *rps = dev_id;
    74  
    75          writel_relaxed(0, rps->clkevt_base + TIMER_CLRINT_REG);
    76  
    77          rps->clkevent.event_handler(&rps->clkevent);
    78  
    79          return IRQ_HANDLED;
    80  }
    81  
    82  static void oxnas_rps_timer_config(struct oxnas_rps_timer *rps,
    83                                     unsigned long period,
    84                                     unsigned int periodic)
    85  {
    86          uint32_t cfg = rps->timer_prescaler;
    87  
    88          if (period)
    89                  cfg |= TIMER_ENABLE;
    90  
    91          if (periodic)
    92                  cfg |= TIMER_PERIODIC;
    93  
    94          writel_relaxed(period, rps->clkevt_base + TIMER_LOAD_REG);
    95          writel_relaxed(cfg, rps->clkevt_base + TIMER_CTRL_REG);
    96  }
    97  
    98  static int oxnas_rps_timer_shutdown(struct clock_event_device *evt)
    99  {
   100          struct oxnas_rps_timer *rps =
 > 101                  container_of(evt, struct oxnas_rps_timer, clkevent);
   102  
   103          oxnas_rps_timer_config(rps, 0, 0);
   104  
   105          return 0;
   106  }
   107  
   108  static int oxnas_rps_timer_set_periodic(struct clock_event_device *evt)
   109  {
   110          struct oxnas_rps_timer *rps =
   111                  container_of(evt, struct oxnas_rps_timer, clkevent);
   112  
   113          oxnas_rps_timer_config(rps, rps->timer_period, 1);
   114  
   115          return 0;
   116  }
   117  
   118  static int oxnas_rps_timer_set_oneshot(struct clock_event_device *evt)
   119  {
   120          struct oxnas_rps_timer *rps =
   121                  container_of(evt, struct oxnas_rps_timer, clkevent);
   122  
   123          oxnas_rps_timer_config(rps, rps->timer_period, 0);
   124  
   125          return 0;
   126  }
   127  
   128  static int oxnas_rps_timer_next_event(unsigned long delta,
   129                                  struct clock_event_device *evt)
   130  {
   131          struct oxnas_rps_timer *rps =
 > 132                  container_of(evt, struct oxnas_rps_timer, clkevent);
   133  
   134          oxnas_rps_timer_config(rps, delta, 0);
   135  
   136          return 0;
   137  }
   138  
   139  static int __init oxnas_rps_clockevent_init(struct oxnas_rps_timer *rps)
   140  {
   141          ulong clk_rate = clk_get_rate(rps->clk);
   142          ulong timer_rate;
   143  
   144          /* Start with prescaler 1 */
   145          rps->timer_prescaler = TIMER_DIV1;
   146          rps->timer_period = DIV_ROUND_UP(clk_rate, HZ);
   147          timer_rate = clk_rate;
   148  
   149          if (rps->timer_period > TIMER_MAX_VAL) {
   150                  rps->timer_prescaler = TIMER_DIV16;
   151                  timer_rate = clk_rate / 16;
   152                  rps->timer_period = DIV_ROUND_UP(timer_rate, HZ);
   153          }
   154          if (rps->timer_period > TIMER_MAX_VAL) {
   155                  rps->timer_prescaler = TIMER_DIV256;
   156                  timer_rate = clk_rate / 256;
   157                  rps->timer_period = DIV_ROUND_UP(timer_rate, HZ);
   158          }
   159  
   160          rps->clkevent.name = "oxnas-rps";
 > 161          rps->clkevent.features = CLOCK_EVT_FEAT_PERIODIC |
 > 162                                   CLOCK_EVT_FEAT_ONESHOT |
 > 163                                   CLOCK_EVT_FEAT_DYNIRQ;
   164          rps->clkevent.tick_resume = oxnas_rps_timer_shutdown;
   165          rps->clkevent.set_state_shutdown = oxnas_rps_timer_shutdown;
   166          rps->clkevent.set_state_periodic = oxnas_rps_timer_set_periodic;
   167          rps->clkevent.set_state_oneshot = oxnas_rps_timer_set_oneshot;
   168          rps->clkevent.set_next_event = oxnas_rps_timer_next_event;
   169          rps->clkevent.rating = 200;
   170          rps->clkevent.cpumask = cpu_possible_mask;
   171          rps->clkevent.irq = rps->irq;
 > 172          clockevents_config_and_register(&rps->clkevent,
   173                                          timer_rate,
   174                                          1,
   175                                          TIMER_MAX_VAL);
   176  
   177          pr_info("Registered clock event rate %luHz prescaler %x period 
%lu\n",
   178                          clk_rate,
   179                          rps->timer_prescaler,
   180                          rps->timer_period);
   181  
   182          return 0;
   183  }
   184  
   185  /* Clocksource */
   186  
   187  static void __iomem *timer_sched_base;
   188  
   189  static u64 notrace oxnas_rps_read_sched_clock(void)
   190  {
   191          return ~readl_relaxed(timer_sched_base);
   192  }
   193  
   194  static int __init oxnas_rps_clocksource_init(struct oxnas_rps_timer 
*rps)
   195  {
   196          ulong clk_rate = clk_get_rate(rps->clk);
   197          int ret;
   198  
   199          /* use prescale 16 */
   200          clk_rate = clk_rate / 16;
   201  
   202          writel_relaxed(TIMER_MAX_VAL, rps->clksrc_base + 
TIMER_LOAD_REG);
   203          writel_relaxed(TIMER_PERIODIC | TIMER_ENABLE | TIMER_DIV16,
   204                          rps->clksrc_base + TIMER_CTRL_REG);
   205  
   206          timer_sched_base = rps->clksrc_base + TIMER_CURR_REG;
   207          sched_clock_register(oxnas_rps_read_sched_clock,
   208                               TIMER_BITS, clk_rate);
 > 209          ret = clocksource_mmio_init(timer_sched_base,
   210                                      "oxnas_rps_clocksource_timer",
   211                                      clk_rate, 250, TIMER_BITS,
 > 212                                      clocksource_mmio_readl_down);
   213          if (WARN_ON(ret)) {
   214                  pr_err("can't register clocksource\n");
   215                  return ret;

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

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