Defined in 1 files as a macro:

• include/linux/ctype.h, line 22 (as a macro)

Referenced in 4 files:

• drivers/char/n_tty.c, line 321
• drivers/isdn/avmb1/capiutil.c, line 819
• net/ipv4/ip_masq.c, line 1341
• scripts/mkdep.c
  • line 380
  • line 387
  • line 399