Extern or forward variable declaration at include/linux/mm.h, line 42 References: arch/arc/mm/init.c, line 102 arch/c6x/kernel/setup.c, line 383 arch/csky/mm/init.c, line 43 arch/csky/mm/init.c, line 45 arch/h8300/mm/init.c, line 98 arch/microblaze/mm/init.c, line 166 arch/microblaze/mm/init.c, line 170 arch/mips/mm/init.c, line 459 arch/mips/mm/init.c, line 461 arch/nds32/mm/init.c, line 188 arch/nios2/kernel/setup.c, line 166 arch/nios2/mm/init.c, line 56 arch/openrisc/mm/init.c, line 206 arch/powerpc/mm/mem.c, line 311 arch/sparc/mm/init_32.c, line 276 arch/unicore32/mm/init.c, line 266 arch/x86/mm/init_32.c, line 699 arch/xtensa/mm/init.c, line 152 include/linux/mm.h, line 42 include/linux/mm.h, line 46 mm/memory.c, line 93 mm/memory.c, line 94 mm/nommu.c, line 49 mm/nommu.c, line 50