Re: [PATCH v2 3/5] mm: introduce VM_FAULT_UFFD_MINOR fault reason

[kernel test robot <lkp@intel.com>]

Hi Mike,

kernel test robot noticed the following build errors:

[auto build test ERROR on 6a23ae0a96a600d1d12557add110e0bb6e32730c]

url:    https://github.com/intel-lab-lkp/linux/commits/Mike-Rapoport/userfaultfd-move-vma_can_userfault-out-of-line/20251126-024059
base:   6a23ae0a96a600d1d12557add110e0bb6e32730c
patch link:    https://lore.kernel.org/r/20251125183840.2368510-4-rppt%40kernel.org
patch subject: [PATCH v2 3/5] mm: introduce VM_FAULT_UFFD_MINOR fault reason
config: x86_64-rhel-9.4 (https://download.01.org/0day-ci/archive/20251128/202511280432.OrK2ulRs-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251128/202511280432.OrK2ulRs-lkp@intel.com/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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511280432.OrK2ulRs-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/trace/define_trace.h:132,
                    from include/trace/events/fs_dax.h:208,
                    from fs/dax.c:30:
   include/trace/events/fs_dax.h: In function 'trace_raw_output_dax_pmd_fault_class':
>> include/trace/stages/stage3_trace_output.h:70:37: error: expected expression before ',' token
      70 |                         { flag_array, { -1, NULL }};                    \
         |                                     ^
   include/trace/trace_events.h:219:34: note: in definition of macro 'DECLARE_EVENT_CLASS'
     219 |         trace_event_printf(iter, print);                                \
         |                                  ^~~~~
   include/trace/events/fs_dax.h:38:9: note: in expansion of macro 'TP_printk'
      38 |         TP_printk("dev %d:%d ino %#lx %s %s address %#lx vm_start "
         |         ^~~~~~~~~
   include/trace/events/fs_dax.h:50:17: note: in expansion of macro '__print_flags'
      50 |                 __print_flags(__entry->result, "|", VM_FAULT_RESULT_TRACE)
         |                 ^~~~~~~~~~~~~
   include/trace/events/fs_dax.h: In function 'trace_raw_output_dax_pte_fault_class':
>> include/trace/stages/stage3_trace_output.h:70:37: error: expected expression before ',' token
      70 |                         { flag_array, { -1, NULL }};                    \
         |                                     ^
   include/trace/trace_events.h:219:34: note: in definition of macro 'DECLARE_EVENT_CLASS'
     219 |         trace_event_printf(iter, print);                                \
         |                                  ^~~~~
   include/trace/events/fs_dax.h:126:9: note: in expansion of macro 'TP_printk'
     126 |         TP_printk("dev %d:%d ino %#lx %s %s address %#lx pgoff %#lx %s",
         |         ^~~~~~~~~
   include/trace/events/fs_dax.h:134:17: note: in expansion of macro '__print_flags'
     134 |                 __print_flags(__entry->result, "|", VM_FAULT_RESULT_TRACE)
         |                 ^~~~~~~~~~~~~
--
   In file included from include/trace/define_trace.h:132,
                    from include/trace/events/f2fs.h:2407,
                    from fs/f2fs/super.c:41:
   include/trace/events/f2fs.h: In function 'trace_raw_output_f2fs_mmap':
>> include/trace/stages/stage3_trace_output.h:70:37: error: expected expression before ',' token
      70 |                         { flag_array, { -1, NULL }};                    \
         |                                     ^
   include/trace/trace_events.h:219:34: note: in definition of macro 'DECLARE_EVENT_CLASS'
     219 |         trace_event_printf(iter, print);                                \
         |                                  ^~~~~
   include/trace/events/f2fs.h:1432:9: note: in expansion of macro 'TP_printk'
    1432 |         TP_printk("dev = (%d,%d), ino = %lu, index = %lu, flags: %s, ret: %s",
         |         ^~~~~~~~~
   include/trace/events/f2fs.h:1436:17: note: in expansion of macro '__print_flags'
    1436 |                 __print_flags(__entry->ret, "|", VM_FAULT_RESULT_TRACE))
         |                 ^~~~~~~~~~~~~


vim +70 include/trace/stages/stage3_trace_output.h

1bc191051dca28 include/trace/stages/stage3_defines.h Linus Torvalds          2022-03-23  65  
af6b9668e85ffd include/trace/stages/stage3_defines.h Steven Rostedt (Google  2022-03-03  66) #undef __print_flags
af6b9668e85ffd include/trace/stages/stage3_defines.h Steven Rostedt (Google  2022-03-03  67) #define __print_flags(flag, delim, flag_array...)			\
af6b9668e85ffd include/trace/stages/stage3_defines.h Steven Rostedt (Google  2022-03-03  68) 	({								\
af6b9668e85ffd include/trace/stages/stage3_defines.h Steven Rostedt (Google  2022-03-03  69) 		static const struct trace_print_flags __flags[] =	\
af6b9668e85ffd include/trace/stages/stage3_defines.h Steven Rostedt (Google  2022-03-03 @70) 			{ flag_array, { -1, NULL }};			\
af6b9668e85ffd include/trace/stages/stage3_defines.h Steven Rostedt (Google  2022-03-03  71) 		trace_print_flags_seq(p, delim, flag, __flags);	\
af6b9668e85ffd include/trace/stages/stage3_defines.h Steven Rostedt (Google  2022-03-03  72) 	})
af6b9668e85ffd include/trace/stages/stage3_defines.h Steven Rostedt (Google  2022-03-03  73) 

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