Extern or forward variable declaration at drivers/oprofile/oprof.h, line 29 References: drivers/oprofile/cpu_buffer.c, line 348 drivers/oprofile/oprof.c, line 25 drivers/oprofile/oprof.c, line 50 drivers/oprofile/oprof.c, line 58 drivers/oprofile/oprof.c, line 59 drivers/oprofile/oprof.c, line 81 drivers/oprofile/oprof.c, line 82 drivers/oprofile/oprof.c, line 99 drivers/oprofile/oprof.c, line 110 drivers/oprofile/oprof.c, line 130 drivers/oprofile/oprof.c, line 173 drivers/oprofile/oprof.c, line 191 drivers/oprofile/oprof.c, line 206 drivers/oprofile/oprof.c, line 207 drivers/oprofile/oprof.c, line 220 drivers/oprofile/oprof.c, line 221 drivers/oprofile/oprof.c, line 239 drivers/oprofile/oprof.c, line 255 drivers/oprofile/oprof.c, line 259 drivers/oprofile/oprof.h, line 29 drivers/oprofile/oprofile_files.c, line 113 drivers/oprofile/oprofile_files.c, line 189 drivers/oprofile/oprofile_files.c, line 190