romchecksum 221 arch/x86/kernel/probe_roms.c if (length && romchecksum(rom, length)) romchecksum 240 arch/x86/kernel/probe_roms.c if (romchecksum(rom, length)) { romchecksum 259 arch/x86/kernel/probe_roms.c if (!length || start + length > upper || !romchecksum(rom, length))