semantic: 0.167 other: 0.162 graphic: 0.108 device: 0.091 vnc: 0.082 performance: 0.075 network: 0.059 files: 0.047 debug: 0.041 PID: 0.041 boot: 0.037 socket: 0.035 permissions: 0.028 KVM: 0.027 files: 0.359 debug: 0.127 semantic: 0.100 other: 0.092 device: 0.077 performance: 0.074 KVM: 0.038 boot: 0.026 PID: 0.025 network: 0.023 socket: 0.019 graphic: 0.017 permissions: 0.011 vnc: 0.011 qemu/hw/char/exynos4210_uart.c: possible pointless local variable ? $ fgrep frame_size qemu/hw/char/exynos4210_uart.c int speed, parity, data_bits, stop_bits, frame_size; frame_size = 1; /* start bit */ frame_size++; /* parity bit */ frame_size += data_bits + stop_bits; $ Suggest either use it or delete it. Thanks for the report -- patch sent to mailing list which deletes the variable. Now fixed in git master, commit e62694a078f182.