Commit Graph

9 Commits

Author SHA1 Message Date
Joe Millenbach 4f73bc4dd3 tty: Added a CONFIG_TTY option to allow removal of TTY
The option allows you to remove TTY and compile without errors. This
saves space on systems that won't support TTY interfaces anyway.
bloat-o-meter output is below.

The bulk of this patch consists of Kconfig changes adding "depends on
TTY" to various serial devices and similar drivers that require the TTY
layer.  Ideally, these dependencies would occur on a common intermediate
symbol such as SERIO, but most drivers "select SERIO" rather than
"depends on SERIO", and "select" does not respect dependencies.

bloat-o-meter output comparing our previous minimal to new minimal by
removing TTY.  The list is filtered to not show removed entries with awk
'$3 != "-"' as the list was very long.

add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350)
function                                     old     new   delta
chr_dev_init                                 166     170      +4
allow_signal                                  80      82      +2
static.__warned                              143     142      -1
disallow_signal                               63      62      -1
__set_special_pids                            95      94      -1
unregister_console                           126     121      -5
start_kernel                                 546     541      -5
register_console                             593     588      -5
copy_from_user                                45      40      -5
sys_setsid                                   128     120      -8
sys_vhangup                                   32      19     -13
do_exit                                     1543    1526     -17
bitmap_zero                                   60      40     -20
arch_local_irq_save                          137     117     -20
release_task                                 674     652     -22
static.spin_unlock_irqrestore                308     260     -48

Signed-off-by: Joe Millenbach <jmillenbach@gmail.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-18 16:15:27 -08:00
Kees Cook 112f8b1294 arch/m68k: remove CONFIG_EXPERIMENTAL
This config item has not carried much meaning for a while now and is
almost always enabled by default. As agreed during the Linux kernel
summit, remove it.

CC: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2012-11-14 08:50:54 +01:00
Geert Uytterhoeven 3bd9e50b42 m68k/mac: Make CONFIG_HEARTBEAT unavailable on Mac
mac_heartbeat() was never really implemented.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
2012-01-04 22:23:50 +01:00
Geert Uytterhoeven 176f2934d1 m68k/serial: Remove references to obsolete serial config options
- ATARI_MFPSER, ATARI_MIDI, MULTIFACE_III_TTY, and DN_SERIAL
    have no corresponding drivers (anymore),
  - Clean up SERIAL_CONSOLE dependencies and help text.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-12-28 20:14:41 +01:00
Geert Uytterhoeven 1d9532b3fa m68k/serial: Remove references to obsolete CONFIG_SERIAL167
commit 51c9d654c2 ("Staging: delete tty
drivers") removed the MVME167 serial driver, but forgot to remove these
references.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-12-10 19:52:48 +01:00
Geert Uytterhoeven 24ed6ddd9c m68k: Revive lost ARAnyM config options
commit 0e152d8050 ("m68k: reorganize Kconfig
options to improve mmu/non-mmu selections") accidentally dropped the ARAnyM
config options. Re-add them to the "Platform devices" section.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
2011-11-08 22:35:46 +01:00
Paul Bolle dbcbf5885a m68k: drop unused Kconfig symbols
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-10-21 15:15:20 +10:00
Paul Bolle 95e82747d6 m68k: drop unused Kconfig symbols
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-10-21 14:56:43 +10:00
Greg Ungerer 0e152d8050 m68k: reorganize Kconfig options to improve mmu/non-mmu selections
The current mmu and non-mmu Kconfig files can be merged to form
a more general selection of options. The current break up of options
is due to the simple brute force merge from the m68k and m68knommu
arch directories.

Many of the options are not at all specific to having the MMU enabled
or not. They are actually associated with a particular CPU type or
platform type.

Ultimately as we support all processors with the MMU disabled we need
many of these options to be selectable without the MMU option enabled.
And likewise some of the ColdFire processors, which currently are only
supported with the MMU disabled, do have MMU hardware, and will need
to have options selected on CPU type, not MMU disabled.

This patch removes the old mmu and non-mmu Kconfigs and instead breaks
up the configuration into four areas: cpu, machine, bus, devices.

The Kconfig.cpu lists all the options associated with selecting a CPU,
and includes options specific to each CPU type as well.

Kconfig.machine lists all options associated with selecting a machine
type. Almost always the machines selectable is restricted by the chosen
CPU.

Kconfig.bus contains options associated with selecting bus types on the
various machine types. That includes PCI bus, PCMCIA bus, etc.

Kconfig.devices contains options for drivers and driver associated
options.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-10-18 14:22:25 +10:00