Re: [PATCH v2 07/17] mm: Define VM_DROPPABLE for powerpc/32

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Hi Christophe,

kernel test robot noticed the following build warnings:

[auto build test WARNING on powerpc/next]
[also build test WARNING on powerpc/fixes shuah-kselftest/next shuah-kselftest/fixes crng-random/master linus/master v6.11-rc5 next-20240823]
[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/Christophe-Leroy/asm-generic-unaligned-h-Extract-common-header-for-vDSO/20240826-103525
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
patch link:    https://lore.kernel.org/r/315e3a268b165b6edad7dcb723b0d8a506a56c4e.1724309198.git.christophe.leroy%40csgroup.eu
patch subject: [PATCH v2 07/17] mm: Define VM_DROPPABLE for powerpc/32
config: x86_64-buildonly-randconfig-002-20240826 (https://download.01.org/0day-ci/archive/20240826/202408261757.D4gOewE9-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240826/202408261757.D4gOewE9-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408261757.D4gOewE9-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from include/trace/events/page_ref.h:11,
                    from mm/debug_page_ref.c:6:
>> include/trace/events/mmflags.h:168:5: warning: "VM_DROPPABLE" is not defined, evaluates to 0 [-Wundef]
     168 | #if VM_DROPPABLE != VM_NONE
         |     ^~~~~~~~~~~~
>> include/trace/events/mmflags.h:168:21: warning: "VM_NONE" is not defined, evaluates to 0 [-Wundef]
     168 | #if VM_DROPPABLE != VM_NONE
         |                     ^~~~~~~
   In file included from include/trace/events/page_ref.h:11,
                    from include/trace/define_trace.h:95,
                    from include/trace/events/page_ref.h:135:
>> include/trace/events/mmflags.h:168:5: warning: "VM_DROPPABLE" is not defined, evaluates to 0 [-Wundef]
     168 | #if VM_DROPPABLE != VM_NONE
         |     ^~~~~~~~~~~~
>> include/trace/events/mmflags.h:168:21: warning: "VM_NONE" is not defined, evaluates to 0 [-Wundef]
     168 | #if VM_DROPPABLE != VM_NONE
         |                     ^~~~~~~
   In file included from include/trace/events/page_ref.h:11,
                    from include/trace/trace_events.h:94,
                    from include/trace/define_trace.h:102:
>> include/trace/events/mmflags.h:169: warning: "IF_HAVE_VM_DROPPABLE" redefined
     169 | # define IF_HAVE_VM_DROPPABLE(flag, name) {flag, name},
         | 
   include/trace/events/mmflags.h:171: note: this is the location of the previous definition
     171 | # define IF_HAVE_VM_DROPPABLE(flag, name)
         | 


vim +/VM_DROPPABLE +168 include/trace/events/mmflags.h

   167	
 > 168	#if VM_DROPPABLE != VM_NONE
 > 169	# define IF_HAVE_VM_DROPPABLE(flag, name) {flag, name},
   170	#else
   171	# define IF_HAVE_VM_DROPPABLE(flag, name)
   172	#endif
   173	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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