Defined in 3 files as a macro:

• arch/powerpc/kernel/prom_init.c, line 540 (as a macro)
• include/linux/ctype.h, line 27 (as a macro)
• tools/perf/util/util.h, line 223 (as a macro)

Referenced in 6 files:

• arch/powerpc/kernel/prom_init.c, line 541
• arch/s390/kernel/ipl.c, line 363
• drivers/scsi/qla2xxx/tcm_qla2xxx.c, line 107
• drivers/target/sbp/sbp_target.c, line 2094
• include/linux/ctype.h, line 47
• tools/perf/util/util.h, line 201