Defined in 3 files as a macro:

• arch/powerpc/kernel/prom_init.c, line 530 (as a macro)
• include/linux/ctype.h, line 30 (as a macro)
• tools/perf/util/util.h, line 199 (as a macro)

Referenced in 7 files:

• arch/powerpc/kernel/prom_init.c, line 531
• arch/s390/kernel/ipl.c, line 389
• drivers/scsi/qla2xxx/tcm_qla2xxx.c, line 90
• include/linux/ctype.h, line 50
• scripts/asn1_compiler.c, line 438
• tools/perf/util/string.c, line 43
• tools/perf/util/util.h, line 177