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-... base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next patch link: https://lore.kernel.org/r/315e3a268b165b6edad7dcb723b0d8a506a56c4e.172430919... 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@i...) 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@i...)
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/202408261757.D4gOewE9-lkp@intel.com/
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