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SubjectRe: [PATCH 0/3] minitty: a minimal TTY layer alternative for embedded systems
Hi Nicolas,

On Thu, Mar 23, 2017 at 05:03:01PM -0400, Nicolas Pitre wrote:
> Here's some numbers using a minimal ARM config.
>
> When CONFIG_TTY=y, the following files are linked into the kernel:
>
> text data bss dec hex filename
> 8796 128 0 8924 22dc drivers/tty/n_tty.o
> 12846 276 44 13166 336e drivers/tty/serial/serial_core.o
> 4852 489 49 5390 150e drivers/tty/sysrq.o
> 1376 0 0 1376 560 drivers/tty/tty_buffer.o
> 13571 172 132 13875 3633 drivers/tty/tty_io.o
> 3072 0 0 3072 c00 drivers/tty/tty_ioctl.o
> 2457 2 120 2579 a13 drivers/tty/tty_ldisc.o
> 1328 0 0 1328 530 drivers/tty/tty_ldsem.o
> 316 0 0 316 13c drivers/tty/tty_mutex.o
> 2516 0 0 2516 9d4 drivers/tty/tty_port.o
> 51130 1067 345 52542 cd3e (TOTALS)
>
> With CONFIG_TTY=n and CONFIG_MINITTY_SERIAL=y, the above is replaced by:
>
> text data bss dec hex filename
> 8776 8 108 8892 22bc drivers/tty/serial/minitty_serial.o

tty_baudrate.o is missing here. It is included in serial_core.o when
CONFIG_TTY=y.

baruch

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