prom_strncmp 780 arch/powerpc/kernel/prom_init.c if (!prom_strncmp(opt, "off", 3)) prom_strncmp 782 arch/powerpc/kernel/prom_init.c else if (!prom_strncmp(opt, "force", 5)) prom_strncmp 2194 arch/powerpc/kernel/prom_init.c else if (prom_strncmp(version, "FirmWorks,3.", 12) == 0) {