Hi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on rcu/dev]
[cannot apply to v5.8-rc5 next-20200713]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use  as documented in
https://git-scm.com/docs/git-format-patch]

url:    
https://github.com/0day-ci/linux/commits/madhuparnabhowmik10-gmail-com/rculist-Fix-_list_check_srcu-macro/20200714-015126
base:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git 
dev
config: x86_64-rhel-7.6 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/kvm_host.h:12,
                    from arch/x86/kvm/mmu/page_track.c:14:
   arch/x86/kvm/mmu/page_track.c: In function 'kvm_page_track_write':
>> include/linux/rculist.h:76:33: error: 'TRUE' undeclared (first use in this 
>> function)
      76 | #define __list_check_srcu(cond) TRUE
         |                                 ^~~~
   include/linux/rculist.h:727:7: note: in expansion of macro 
'__list_check_srcu'
     727 |  for (__list_check_srcu(cond),     \
         |       ^~~~~~~~~~~~~~~~~
   arch/x86/kvm/mmu/page_track.c:232:2: note: in expansion of macro 
'hlist_for_each_entry_srcu'
     232 |  hlist_for_each_entry_srcu(n, &head->track_notifier_list, node,
         |  ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/rculist.h:76:33: note: each undeclared identifier is reported 
only once for each function it appears in
      76 | #define __list_check_srcu(cond) TRUE
         |                                 ^~~~
   include/linux/rculist.h:727:7: note: in expansion of macro 
'__list_check_srcu'
     727 |  for (__list_check_srcu(cond),     \
         |       ^~~~~~~~~~~~~~~~~
   arch/x86/kvm/mmu/page_track.c:232:2: note: in expansion of macro 
'hlist_for_each_entry_srcu'
     232 |  hlist_for_each_entry_srcu(n, &head->track_notifier_list, node,
         |  ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/rculist.h:727:30: warning: left-hand operand of comma 
expression has no effect [-Wunused-value]
     727 |  for (__list_check_srcu(cond),     \
         |                              ^
   arch/x86/kvm/mmu/page_track.c:232:2: note: in expansion of macro 
'hlist_for_each_entry_srcu'
     232 |  hlist_for_each_entry_srcu(n, &head->track_notifier_list, node,
         |  ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/x86/kvm/mmu/page_track.c: In function 'kvm_page_track_flush_slot':
>> include/linux/rculist.h:76:33: error: 'TRUE' undeclared (first use in this 
>> function)
      76 | #define __list_check_srcu(cond) TRUE
         |                                 ^~~~
   include/linux/rculist.h:727:7: note: in expansion of macro 
'__list_check_srcu'
     727 |  for (__list_check_srcu(cond),     \
         |       ^~~~~~~~~~~~~~~~~
   arch/x86/kvm/mmu/page_track.c:258:2: note: in expansion of macro 
'hlist_for_each_entry_srcu'
     258 |  hlist_for_each_entry_srcu(n, &head->track_notifier_list, node,
         |  ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/rculist.h:727:30: warning: left-hand operand of comma 
expression has no effect [-Wunused-value]
     727 |  for (__list_check_srcu(cond),     \
         |                              ^
   arch/x86/kvm/mmu/page_track.c:258:2: note: in expansion of macro 
'hlist_for_each_entry_srcu'
     258 |  hlist_for_each_entry_srcu(n, &head->track_notifier_list, node,
         |  ^~~~~~~~~~~~~~~~~~~~~~~~~

vim +/TRUE +76 include/linux/rculist.h

    58  
    59  #ifdef CONFIG_PROVE_RCU_LIST
    60  #define __list_check_rcu(dummy, cond, extra...)                         
\
    61          ({                                                              
\
    62          check_arg_count_one(extra);                                     
\
    63          RCU_LOCKDEP_WARN(!(cond) && !rcu_read_lock_any_held(),          
\
    64                           "RCU-list traversed in non-reader section!");  
\
    65          })
    66  
    67  #define __list_check_srcu(cond)                                  \
    68          ({                                                              
 \
    69          RCU_LOCKDEP_WARN(!(cond),                                       
 \
    70                  "RCU-list traversed without holding the required 
lock!");\
    71          })
    72  #else
    73  #define __list_check_rcu(dummy, cond, extra...)                         
\
    74          ({ check_arg_count_one(extra); })
    75  
  > 76  #define __list_check_srcu(cond) TRUE
    77  #endif
    78  

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

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