Hi,

kernel test robot noticed the following build errors:

[auto build test ERROR on trace/for-next]
[also build test ERROR on shuah-kselftest/next shuah-kselftest/fixes 
linus/master v7.3-rc6 next-20261009]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    
https://github.com/intel-lab-lkp/linux/commits/wen-yang-linux-dev/rv-Force-environment-reset-action-on-HA-monitor-start/20261012-033907
base:   https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace 
for-next
patch link:    
https://lore.kernel.org/r/cdaf33af866392428f1942cef4e442b1d106989c.1791745088.git.wen.yang%40linux.dev
patch subject: [PATCH v7 03/14] rv: Add a KUnit test for the HA timer underflow
config: x86_64-randconfig-1005-20261012 
(https://download.01.org/0day-ci/archive/20261012/[email protected]/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project 
ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
reproduce (this is a W=1 build): 
(https://download.01.org/0day-ci/archive/20261012/[email protected]/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: 
https://lore.kernel.org/oe-kbuild-all/[email protected]/

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

   In file included from kernel/trace/rv/rv_monitors_test.c:71:
>> include/rv/ha_monitor.h:66:16: error: no member named 'da_mon' in 
>> 'ha_monitor'
      66 | _Static_assert(offsetof(struct ha_monitor, da_mon) == 0,
         |                ^                           ~~~~~~
   include/linux/stddef.h:16:32: note: expanded from macro 'offsetof'
      16 | #define offsetof(TYPE, MEMBER)  __builtin_offsetof(TYPE, MEMBER)
         |                                 ^                        ~~~~~~
   In file included from kernel/trace/rv/rv_monitors_test.c:71:
>> include/rv/ha_monitor.h:122:5: warning: 'HA_TIMER_HRTIMER' is not defined, 
>> evaluates to 0 [-Wundef]
     122 | #if HA_TIMER_TYPE == HA_TIMER_WHEEL
         |     ^
   kernel/trace/rv/rv_monitors_test.c:21:23: note: expanded from macro 
'HA_TIMER_TYPE'
      21 | #define HA_TIMER_TYPE HA_TIMER_HRTIMER
         |                       ^
   In file included from kernel/trace/rv/rv_monitors_test.c:71:
   include/rv/ha_monitor.h:122:22: warning: 'HA_TIMER_WHEEL' is not defined, 
evaluates to 0 [-Wundef]
     122 | #if HA_TIMER_TYPE == HA_TIMER_WHEEL
         |                      ^
>> include/rv/ha_monitor.h:192:30: error: no member named 'da_mon' in 'struct 
>> ha_monitor'
     192 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                                     ^~~~~~~~~~~~~~~~~~~~~
   include/rv/ha_monitor.h:68:63: note: expanded from macro 'to_ha_monitor'
      68 | #define to_ha_monitor(da) container_of(da, struct ha_monitor, da_mon)
         |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
   include/linux/container_of.h:20:56: note: expanded from macro 'container_of'
      20 |         static_assert(__same_type(*(ptr), typeof_member(type, 
member)) || \
         |         
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
      21 |                       __same_type(*(ptr), void),                     
   \
         |                       
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      22 |                       "pointer type mismatch in container_of()");    
   \
         |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/container_of.h:8:45: note: expanded from macro 'typeof_member'
       8 | #define typeof_member(T, m)     typeof(((T*)0)->m)
         |                                                 ^
   include/linux/compiler_types.h:610:74: note: expanded from macro 
'__same_type'
     610 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), 
typeof(b))
         |                                                                      
    ^
   include/linux/build_bug.h:79:50: note: expanded from macro 'static_assert'
      79 | #define static_assert(expr, ...) __static_assert(expr, 
##__VA_ARGS__, #expr)
         |                                  
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:80:56: note: expanded from macro '__static_assert'
      80 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
         |                                                        ^~~~
   In file included from kernel/trace/rv/rv_monitors_test.c:71:
   include/rv/ha_monitor.h:192:30: error: no member named 'da_mon' in 
'ha_monitor'
     192 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                                     ^~~~~~~~~~~~~~~~~~~~~
   include/rv/ha_monitor.h:68:27: note: expanded from macro 'to_ha_monitor'
      68 | #define to_ha_monitor(da) container_of(da, struct ha_monitor, da_mon)
         |                           ^                                   ~~~~~~
   include/linux/container_of.h:23:27: note: expanded from macro 'container_of'
      23 |         (type *)((void *)(ptr) - offsetof(type, member)); })
         |                                  ^              ~~~~~~
   include/linux/stddef.h:16:32: note: expanded from macro 'offsetof'
      16 | #define offsetof(TYPE, MEMBER)  __builtin_offsetof(TYPE, MEMBER)
         |                                 ^                        ~~~~~~
   In file included from kernel/trace/rv/rv_monitors_test.c:71:
>> include/rv/ha_monitor.h:192:21: error: initializing 'struct ha_monitor *' 
>> with an expression of incompatible type 'void'
     192 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                            ^        ~~~~~~~~~~~~~~~~~~~~~
   include/rv/ha_monitor.h:208:30: error: no member named 'da_mon' in 'struct 
ha_monitor'
     208 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                                     ^~~~~~~~~~~~~~~~~~~~~
   include/rv/ha_monitor.h:68:63: note: expanded from macro 'to_ha_monitor'
      68 | #define to_ha_monitor(da) container_of(da, struct ha_monitor, da_mon)
         |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
   include/linux/container_of.h:20:56: note: expanded from macro 'container_of'
      20 |         static_assert(__same_type(*(ptr), typeof_member(type, 
member)) || \
         |         
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
      21 |                       __same_type(*(ptr), void),                     
   \
         |                       
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      22 |                       "pointer type mismatch in container_of()");    
   \
         |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/container_of.h:8:45: note: expanded from macro 'typeof_member'
       8 | #define typeof_member(T, m)     typeof(((T*)0)->m)
         |                                                 ^
   include/linux/compiler_types.h:610:74: note: expanded from macro 
'__same_type'
     610 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), 
typeof(b))
         |                                                                      
    ^
   include/linux/build_bug.h:79:50: note: expanded from macro 'static_assert'
      79 | #define static_assert(expr, ...) __static_assert(expr, 
##__VA_ARGS__, #expr)
         |                                  
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:80:56: note: expanded from macro '__static_assert'
      80 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
         |                                                        ^~~~
   In file included from kernel/trace/rv/rv_monitors_test.c:71:
   include/rv/ha_monitor.h:208:30: error: no member named 'da_mon' in 
'ha_monitor'
     208 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                                     ^~~~~~~~~~~~~~~~~~~~~
   include/rv/ha_monitor.h:68:27: note: expanded from macro 'to_ha_monitor'
      68 | #define to_ha_monitor(da) container_of(da, struct ha_monitor, da_mon)
         |                           ^                                   ~~~~~~
   include/linux/container_of.h:23:27: note: expanded from macro 'container_of'
      23 |         (type *)((void *)(ptr) - offsetof(type, member)); })
         |                                  ^              ~~~~~~
   include/linux/stddef.h:16:32: note: expanded from macro 'offsetof'
      16 | #define offsetof(TYPE, MEMBER)  __builtin_offsetof(TYPE, MEMBER)
         |                                 ^                        ~~~~~~
   In file included from kernel/trace/rv/rv_monitors_test.c:71:
   include/rv/ha_monitor.h:208:21: error: initializing 'struct ha_monitor *' 
with an expression of incompatible type 'void'
     208 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                            ^        ~~~~~~~~~~~~~~~~~~~~~
>> include/rv/ha_monitor.h:219:27: error: no member named 'env_store' in 
>> 'struct ha_monitor'
     219 |         return READ_ONCE(ha_mon->env_store[env]) == 
ENV_INVALID_VALUE;
         |                          ~~~~~~  ^
>> include/rv/ha_monitor.h:219:27: error: no member named 'env_store' in 
>> 'struct ha_monitor'
     219 |         return READ_ONCE(ha_mon->env_store[env]) == 
ENV_INVALID_VALUE;
         |                          ~~~~~~  ^
>> include/rv/ha_monitor.h:219:27: error: no member named 'env_store' in 
>> 'struct ha_monitor'
     219 |         return READ_ONCE(ha_mon->env_store[env]) == 
ENV_INVALID_VALUE;
         |                          ~~~~~~  ^
>> include/rv/ha_monitor.h:219:27: error: no member named 'env_store' in 
>> 'struct ha_monitor'
     219 |         return READ_ONCE(ha_mon->env_store[env]) == 
ENV_INVALID_VALUE;
         |                          ~~~~~~  ^
>> include/rv/ha_monitor.h:219:27: error: no member named 'env_store' in 
>> 'struct ha_monitor'
     219 |         return READ_ONCE(ha_mon->env_store[env]) == 
ENV_INVALID_VALUE;
         |                          ~~~~~~  ^
>> include/rv/ha_monitor.h:219:27: error: no member named 'env_store' in 
>> 'struct ha_monitor'
     219 |         return READ_ONCE(ha_mon->env_store[env]) == 
ENV_INVALID_VALUE;
         |                          ~~~~~~  ^
>> include/rv/ha_monitor.h:219:27: error: no member named 'env_store' in 
>> 'struct ha_monitor'
     219 |         return READ_ONCE(ha_mon->env_store[env]) == 
ENV_INVALID_VALUE;
         |                          ~~~~~~  ^
   include/rv/ha_monitor.h:286:30: error: no member named 'da_mon' in 'struct 
ha_monitor'
     286 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                                     ^~~~~~~~~~~~~~~~~~~~~
   include/rv/ha_monitor.h:68:63: note: expanded from macro 'to_ha_monitor'
      68 | #define to_ha_monitor(da) container_of(da, struct ha_monitor, da_mon)
         |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
   include/linux/container_of.h:20:56: note: expanded from macro 'container_of'
      20 |         static_assert(__same_type(*(ptr), typeof_member(type, 
member)) || \
         |         
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
      21 |                       __same_type(*(ptr), void),                     
   \
         |                       
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      22 |                       "pointer type mismatch in container_of()");    
   \
         |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/container_of.h:8:45: note: expanded from macro 'typeof_member'
       8 | #define typeof_member(T, m)     typeof(((T*)0)->m)
         |                                                 ^
   include/linux/compiler_types.h:610:74: note: expanded from macro 
'__same_type'
     610 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), 
typeof(b))
         |                                                                      
    ^
   include/linux/build_bug.h:79:50: note: expanded from macro 'static_assert'
      79 | #define static_assert(expr, ...) __static_assert(expr, 
##__VA_ARGS__, #expr)
         |                                  
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:80:56: note: expanded from macro '__static_assert'
      80 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
         |                                                        ^~~~
   In file included from kernel/trace/rv/rv_monitors_test.c:71:
   include/rv/ha_monitor.h:286:30: error: no member named 'da_mon' in 
'ha_monitor'
     286 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                                     ^~~~~~~~~~~~~~~~~~~~~
   include/rv/ha_monitor.h:68:27: note: expanded from macro 'to_ha_monitor'
      68 | #define to_ha_monitor(da) container_of(da, struct ha_monitor, da_mon)
         |                           ^                                   ~~~~~~
   include/linux/container_of.h:23:27: note: expanded from macro 'container_of'
      23 |         (type *)((void *)(ptr) - offsetof(type, member)); })
         |                                  ^              ~~~~~~
   include/linux/stddef.h:16:32: note: expanded from macro 'offsetof'
      16 | #define offsetof(TYPE, MEMBER)  __builtin_offsetof(TYPE, MEMBER)
         |                                 ^                        ~~~~~~
   In file included from kernel/trace/rv/rv_monitors_test.c:71:
   include/rv/ha_monitor.h:286:21: error: initializing 'struct ha_monitor *' 
with an expression of incompatible type 'void'
     286 |         struct ha_monitor *ha_mon = to_ha_monitor(da_mon);
         |                            ^        ~~~~~~~~~~~~~~~~~~~~~
   include/rv/ha_monitor.h:321:41: error: no member named 'da_mon' in 'struct 
ha_monitor'
     321 |         curr_state = smp_load_acquire(&ha_mon->da_mon.curr_state);
         |                                        ~~~~~~  ^
   include/rv/ha_monitor.h:321:41: error: no member named 'da_mon' in 'struct 
ha_monitor'
     321 |         curr_state = smp_load_acquire(&ha_mon->da_mon.curr_state);
         |                                        ~~~~~~  ^
   fatal error: too many errors emitted, stopping now [-ferror-limit=]
   2 warnings and 20 errors generated.


vim +66 include/rv/ha_monitor.h

f5587d1b6ec938 Gabriele Monaco 2026-03-30   64  
f5587d1b6ec938 Gabriele Monaco 2026-03-30   65  /* This simplifies things since 
da_mon and ha_mon coexist in the same union */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  @66  _Static_assert(offsetof(struct 
ha_monitor, da_mon) == 0,
f5587d1b6ec938 Gabriele Monaco 2026-03-30   67                 "da_mon must be 
the first element in an ha_mon!");
f5587d1b6ec938 Gabriele Monaco 2026-03-30   68  #define to_ha_monitor(da) 
container_of(da, struct ha_monitor, da_mon)
f5587d1b6ec938 Gabriele Monaco 2026-03-30   69  
f5587d1b6ec938 Gabriele Monaco 2026-03-30   70  #define ENV_MAX 
CONCATENATE(env_max_, MONITOR_NAME)
f5587d1b6ec938 Gabriele Monaco 2026-03-30   71  #define ENV_MAX_STORED 
CONCATENATE(env_max_stored_, MONITOR_NAME)
f5587d1b6ec938 Gabriele Monaco 2026-03-30   72  #define envs CONCATENATE(envs_, 
MONITOR_NAME)
f5587d1b6ec938 Gabriele Monaco 2026-03-30   73  
f5587d1b6ec938 Gabriele Monaco 2026-03-30   74  /* Environment storage before 
being reset */
f5587d1b6ec938 Gabriele Monaco 2026-03-30   75  #define ENV_INVALID_VALUE 
U64_MAX
f5587d1b6ec938 Gabriele Monaco 2026-03-30   76  /* Error with no event occurs 
only on timeouts */
f5587d1b6ec938 Gabriele Monaco 2026-03-30   77  #define EVENT_NONE EVENT_MAX
f5587d1b6ec938 Gabriele Monaco 2026-03-30   78  #define EVENT_NONE_LBL "none"
f5587d1b6ec938 Gabriele Monaco 2026-03-30   79  #define ENV_BUFFER_SIZE 64
f5587d1b6ec938 Gabriele Monaco 2026-03-30   80  
f5587d1b6ec938 Gabriele Monaco 2026-03-30   81  #ifdef CONFIG_RV_REACTORS
f5587d1b6ec938 Gabriele Monaco 2026-03-30   82  
f5587d1b6ec938 Gabriele Monaco 2026-03-30   83  /*
f5587d1b6ec938 Gabriele Monaco 2026-03-30   84   * ha_react - trigger the 
reaction after a failed environment constraint
f5587d1b6ec938 Gabriele Monaco 2026-03-30   85   *
f5587d1b6ec938 Gabriele Monaco 2026-03-30   86   * The transition from 
curr_state with event is otherwise valid, but the
f5587d1b6ec938 Gabriele Monaco 2026-03-30   87   * environment constraint is 
false. This function can be called also with no
f5587d1b6ec938 Gabriele Monaco 2026-03-30   88   * event from a timer (state 
constraints only).
f5587d1b6ec938 Gabriele Monaco 2026-03-30   89   */
f5587d1b6ec938 Gabriele Monaco 2026-03-30   90  static void ha_react(enum 
states curr_state, enum events event, char *env)
f5587d1b6ec938 Gabriele Monaco 2026-03-30   91  {
f5587d1b6ec938 Gabriele Monaco 2026-03-30   92          rv_react(&rv_this,
f5587d1b6ec938 Gabriele Monaco 2026-03-30   93                   "rv: monitor 
%s does not allow event %s on state %s with env %s\n",
f5587d1b6ec938 Gabriele Monaco 2026-03-30   94                   
__stringify(MONITOR_NAME),
f5587d1b6ec938 Gabriele Monaco 2026-03-30   95                   event == 
EVENT_NONE ? EVENT_NONE_LBL : model_get_event_name(event),
f5587d1b6ec938 Gabriele Monaco 2026-03-30   96                   
model_get_state_name(curr_state), env);
f5587d1b6ec938 Gabriele Monaco 2026-03-30   97  }
f5587d1b6ec938 Gabriele Monaco 2026-03-30   98  
f5587d1b6ec938 Gabriele Monaco 2026-03-30   99  #else /* CONFIG_RV_REACTOR */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  100  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  101  static void ha_react(enum 
states curr_state, enum events event, char *env) { }
f5587d1b6ec938 Gabriele Monaco 2026-03-30  102  #endif
f5587d1b6ec938 Gabriele Monaco 2026-03-30  103  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  104  /*
f5587d1b6ec938 Gabriele Monaco 2026-03-30  105   * model_get_state_name - 
return the (string) name of the given state
f5587d1b6ec938 Gabriele Monaco 2026-03-30  106   */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  107  static char 
*model_get_env_name(enum envs env)
f5587d1b6ec938 Gabriele Monaco 2026-03-30  108  {
f5587d1b6ec938 Gabriele Monaco 2026-03-30  109          if ((env < 0) || (env 
>= ENV_MAX))
f5587d1b6ec938 Gabriele Monaco 2026-03-30  110                  return 
"INVALID";
f5587d1b6ec938 Gabriele Monaco 2026-03-30  111  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  112          return 
RV_AUTOMATON_NAME.env_names[env];
f5587d1b6ec938 Gabriele Monaco 2026-03-30  113  }
f5587d1b6ec938 Gabriele Monaco 2026-03-30  114  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  115  /*
f5587d1b6ec938 Gabriele Monaco 2026-03-30  116   * Monitors requiring a timer 
implementation need to request it explicitly.
f5587d1b6ec938 Gabriele Monaco 2026-03-30  117   */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  118  #ifndef HA_TIMER_TYPE
f5587d1b6ec938 Gabriele Monaco 2026-03-30  119  #define HA_TIMER_TYPE 
HA_TIMER_NONE
f5587d1b6ec938 Gabriele Monaco 2026-03-30  120  #endif
f5587d1b6ec938 Gabriele Monaco 2026-03-30  121  
f5587d1b6ec938 Gabriele Monaco 2026-03-30 @122  #if HA_TIMER_TYPE == 
HA_TIMER_WHEEL
f5587d1b6ec938 Gabriele Monaco 2026-03-30  123  static void 
ha_monitor_timer_callback(struct timer_list *timer);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  124  #elif HA_TIMER_TYPE == 
HA_TIMER_HRTIMER
f5587d1b6ec938 Gabriele Monaco 2026-03-30  125  static enum hrtimer_restart 
ha_monitor_timer_callback(struct hrtimer *hrtimer);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  126  #endif
f5587d1b6ec938 Gabriele Monaco 2026-03-30  127  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  128  /*
f5587d1b6ec938 Gabriele Monaco 2026-03-30  129   * ktime_get_ns is expensive, 
since we usually don't require precise accounting
f5587d1b6ec938 Gabriele Monaco 2026-03-30  130   * of changes within the same 
event, cache the current time at the beginning of
f5587d1b6ec938 Gabriele Monaco 2026-03-30  131   * the constraint handler and 
use the cache for subsequent calls.
f5587d1b6ec938 Gabriele Monaco 2026-03-30  132   * Monitors without ns clocks 
automatically skip this.
f5587d1b6ec938 Gabriele Monaco 2026-03-30  133   */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  134  #ifdef HA_CLK_NS
f5587d1b6ec938 Gabriele Monaco 2026-03-30  135  #define ha_get_ns() 
ktime_get_ns()
f5587d1b6ec938 Gabriele Monaco 2026-03-30  136  #else
f5587d1b6ec938 Gabriele Monaco 2026-03-30  137  #define ha_get_ns() 0
f5587d1b6ec938 Gabriele Monaco 2026-03-30  138  #endif /* HA_CLK_NS */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  139  
74e17bd6fc8ed7 Gabriele Monaco 2026-06-01  140  static bool ha_mon_destroying;
74e17bd6fc8ed7 Gabriele Monaco 2026-06-01  141  
700782ec8f6589 Gabriele Monaco 2026-06-01  142  static int ha_monitor_init(void)
700782ec8f6589 Gabriele Monaco 2026-06-01  143  {
700782ec8f6589 Gabriele Monaco 2026-06-01  144          int ret;
700782ec8f6589 Gabriele Monaco 2026-06-01  145  
74e17bd6fc8ed7 Gabriele Monaco 2026-06-01  146          
WRITE_ONCE(ha_mon_destroying, false);
700782ec8f6589 Gabriele Monaco 2026-06-01  147          ret = da_monitor_init();
700782ec8f6589 Gabriele Monaco 2026-06-01  148          if (ret == 0)
700782ec8f6589 Gabriele Monaco 2026-06-01  149                  
ha_monitor_enable_hook();
700782ec8f6589 Gabriele Monaco 2026-06-01  150          return ret;
700782ec8f6589 Gabriele Monaco 2026-06-01  151  }
700782ec8f6589 Gabriele Monaco 2026-06-01  152  
700782ec8f6589 Gabriele Monaco 2026-06-01  153  static void 
ha_monitor_destroy(void)
700782ec8f6589 Gabriele Monaco 2026-06-01  154  {
74e17bd6fc8ed7 Gabriele Monaco 2026-06-01  155          
WRITE_ONCE(ha_mon_destroying, true);
700782ec8f6589 Gabriele Monaco 2026-06-01  156          
ha_monitor_disable_hook();
700782ec8f6589 Gabriele Monaco 2026-06-01  157          da_monitor_destroy();
700782ec8f6589 Gabriele Monaco 2026-06-01  158  }
700782ec8f6589 Gabriele Monaco 2026-06-01  159  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  160  /* Should be supplied by the 
monitor */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  161  static u64 ha_get_env(struct 
ha_monitor *ha_mon, enum envs env, u64 time_ns);
a8db17cc2158f8 Gabriele Monaco 2026-10-12  162  static void ha_reset_env(struct 
ha_monitor *ha_mon, enum envs env, u64 time_ns);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  163  static bool 
ha_verify_constraint(struct ha_monitor *ha_mon,
f5587d1b6ec938 Gabriele Monaco 2026-03-30  164                                  
 enum states curr_state,
f5587d1b6ec938 Gabriele Monaco 2026-03-30  165                                  
 enum events event,
f5587d1b6ec938 Gabriele Monaco 2026-03-30  166                                  
 enum states next_state,
f5587d1b6ec938 Gabriele Monaco 2026-03-30  167                                  
 u64 time_ns);
a8db17cc2158f8 Gabriele Monaco 2026-10-12  168  #ifdef HA_NO_RESET
a8db17cc2158f8 Gabriele Monaco 2026-10-12  169  static void ha_reset_env(struct 
ha_monitor *ha_mon, enum envs env, u64 time_ns) { }
a8db17cc2158f8 Gabriele Monaco 2026-10-12  170  #endif
f5587d1b6ec938 Gabriele Monaco 2026-03-30  171  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  172  /*
f5587d1b6ec938 Gabriele Monaco 2026-03-30  173   * ha_monitor_reset_all_stored 
- reset all environment variables in the monitor
f5587d1b6ec938 Gabriele Monaco 2026-03-30  174   */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  175  static inline void 
ha_monitor_reset_all_stored(struct ha_monitor *ha_mon)
f5587d1b6ec938 Gabriele Monaco 2026-03-30  176  {
a8db17cc2158f8 Gabriele Monaco 2026-10-12  177          u64 time_ns = 
ha_get_ns();
a8db17cc2158f8 Gabriele Monaco 2026-10-12  178  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  179          for (int i = 0; i < 
ENV_MAX_STORED; i++)
a8db17cc2158f8 Gabriele Monaco 2026-10-12  180                  
ha_reset_env(ha_mon, i, time_ns);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  181  }
f5587d1b6ec938 Gabriele Monaco 2026-03-30  182  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  183  /*
f5587d1b6ec938 Gabriele Monaco 2026-03-30  184   * ha_monitor_init_env - setup 
timer and reset all environment
f5587d1b6ec938 Gabriele Monaco 2026-03-30  185   *
f5587d1b6ec938 Gabriele Monaco 2026-03-30  186   * Called from a hook in the DA 
start functions, it supplies the da_mon
f5587d1b6ec938 Gabriele Monaco 2026-03-30  187   * corresponding to the current 
ha_mon.
f5587d1b6ec938 Gabriele Monaco 2026-03-30  188   * Not all hybrid automata 
require the timer, still set it for simplicity.
f5587d1b6ec938 Gabriele Monaco 2026-03-30  189   */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  190  static inline void 
ha_monitor_init_env(struct da_monitor *da_mon)
f5587d1b6ec938 Gabriele Monaco 2026-03-30  191  {
f5587d1b6ec938 Gabriele Monaco 2026-03-30 @192          struct ha_monitor 
*ha_mon = to_ha_monitor(da_mon);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  193  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  194          
ha_monitor_reset_all_stored(ha_mon);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  195          ha_setup_timer(ha_mon);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  196  }
f5587d1b6ec938 Gabriele Monaco 2026-03-30  197  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  198  /*
f5587d1b6ec938 Gabriele Monaco 2026-03-30  199   * ha_monitor_reset_env - stop 
timer and reset all environment
f5587d1b6ec938 Gabriele Monaco 2026-03-30  200   *
f5587d1b6ec938 Gabriele Monaco 2026-03-30  201   * Called from a hook in the DA 
reset functions, it supplies the da_mon
f5587d1b6ec938 Gabriele Monaco 2026-03-30  202   * corresponding to the current 
ha_mon.
f5587d1b6ec938 Gabriele Monaco 2026-03-30  203   * Not all hybrid automata 
require the timer, still clear it for simplicity.
713c9e1ea76238 Gabriele Monaco 2026-06-01  204   * Monitors that never started 
have their timer uninitialized, do not stop those.
f5587d1b6ec938 Gabriele Monaco 2026-03-30  205   */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  206  static inline void 
ha_monitor_reset_env(struct da_monitor *da_mon)
f5587d1b6ec938 Gabriele Monaco 2026-03-30  207  {
f5587d1b6ec938 Gabriele Monaco 2026-03-30  208          struct ha_monitor 
*ha_mon = to_ha_monitor(da_mon);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  209  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  210          if 
(likely(da_monitoring(da_mon)))
f5587d1b6ec938 Gabriele Monaco 2026-03-30  211                  
ha_cancel_timer(ha_mon);
f5587d1b6ec938 Gabriele Monaco 2026-03-30  212  }
f5587d1b6ec938 Gabriele Monaco 2026-03-30  213  
f5587d1b6ec938 Gabriele Monaco 2026-03-30  214  /*
f5587d1b6ec938 Gabriele Monaco 2026-03-30  215   * ha_monitor_env_invalid - 
return true if env has not been initialised
f5587d1b6ec938 Gabriele Monaco 2026-03-30  216   */
f5587d1b6ec938 Gabriele Monaco 2026-03-30  217  static inline bool 
ha_monitor_env_invalid(struct ha_monitor *ha_mon, enum envs env)
f5587d1b6ec938 Gabriele Monaco 2026-03-30  218  {
f5587d1b6ec938 Gabriele Monaco 2026-03-30 @219          return 
READ_ONCE(ha_mon->env_store[env]) == ENV_INVALID_VALUE;
f5587d1b6ec938 Gabriele Monaco 2026-03-30  220  }
f5587d1b6ec938 Gabriele Monaco 2026-03-30  221  

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