diff options
| author | Joe Millenbach <jmillenbach@gmail.com> | 2013-01-17 22:44:22 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-18 16:15:27 -0800 |
| commit | 4f73bc4dd3e8563ef4109f293a092820dff66d92 (patch) | |
| tree | 8ebd5d01abaceb70da1932db1a5e7219630b0fd3 | |
| parent | a1bf9584429d61b7096f93ae09325e1ba538e9e8 (diff) | |
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>
55 files changed, 165 insertions, 47 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 9d5904cc771..1ef196ddade 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -125,6 +125,7 @@ choice config ALPHA_GENERIC bool "Generic" + depends on TTY help A generic kernel will run on all supported Alpha hardware. @@ -491,6 +492,7 @@ config VGA_HOSE config ALPHA_SRM bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME + depends on TTY default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL ---help--- There are two different types of booting firmware on Alphas: SRM, diff --git a/arch/ia64/hp/sim/Kconfig b/arch/ia64/hp/sim/Kconfig index 8d513a8c526..d84707d5520 100644 --- a/arch/ia64/hp/sim/Kconfig +++ b/arch/ia64/hp/sim/Kconfig @@ -8,6 +8,7 @@ config HP_SIMETH config HP_SIMSERIAL bool "Simulated serial driver support" + depends on TTY config HP_SIMSERIAL_CONSOLE bool "Console for HP simulator" diff --git a/arch/m68k/Kconfig.devices b/arch/m68k/Kconfig.devices index c4cdfe444c6..4bc945dfe46 100644 --- a/arch/m68k/Kconfig.devices +++ b/arch/m68k/Kconfig.devices @@ -41,7 +41,7 @@ config NFBLOCK config NFCON tristate "NatFeat console driver" - depends on NATFEAT + depends on TTY && NATFEAT help Say Y to include support for the ARAnyM NatFeat console driver which allows the console output to be redirected to the stderr diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index b77feffbade..df5beb63976 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -23,6 +23,7 @@ config PARISC select HAVE_MOD_ARCH_SPECIFIC select MODULES_USE_ELF_RELA select CLONE_BACKWARDS + select TTY # Needed for pdc_cons.c help The PA-RISC microprocessor is designed by Hewlett-Packard and used diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 875d008828b..ae8a7ca67fa 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -121,6 +121,7 @@ config DEBUG_COPY_FROM_USER def_bool n config HVC_TILE + depends on TTY select HVC_DRIVER def_bool y diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index 648121b037d..bceee6623b0 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -12,6 +12,7 @@ config UML select GENERIC_CPU_DEVICES select GENERIC_IO select GENERIC_CLOCKEVENTS + select TTY # Needed for line.c config MMU bool diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 5aab1acabf1..ad64c73b867 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -132,6 +132,7 @@ choice config XTENSA_PLATFORM_ISS bool "ISS" + depends on TTY select XTENSA_CALIBRATE_CCOUNT select SERIAL_CONSOLE select XTENSA_ISS_NETWORK diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig index e9f203eadb1..fdfd61a2d52 100644 --- a/drivers/bluetooth/Kconfig +++ b/drivers/bluetooth/Kconfig @@ -26,6 +26,7 @@ config BT_HCIBTSDIO config BT_HCIUART tristate "HCI UART driver" + depends on TTY help Bluetooth HCI UART driver. This driver is required if you want to use Bluetooth devices with diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 72bedad6bf8..3bb6fa3930b 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -53,7 +53,7 @@ source "drivers/tty/serial/Kconfig" config TTY_PRINTK bool "TTY driver to output user messages via printk" - depends on EXPERT + depends on EXPERT && TTY default n ---help--- If you say Y here, the support for writing user messages (i.e. @@ -159,7 +159,7 @@ source "drivers/tty/hvc/Kconfig" config VIRTIO_CONSOLE tristate "Virtio console" - depends on VIRTIO + depends on VIRTIO && TTY select HVC_DRIVER help Virtio console for use with lguest and other hypervisors. @@ -392,6 +392,7 @@ config XILINX_HWICAP config R3964 tristate "Siemens R3964 line discipline" + depends on TTY ---help--- This driver allows synchronous communication with devices using the Siemens R3964 packet protocol. Unless you are dealing with special @@ -439,7 +440,7 @@ source "drivers/char/pcmcia/Kconfig" config MWAVE tristate "ACP Modem (Mwave) support" - depends on X86 + depends on X86 && TTY select SERIAL_8250 ---help--- The ACP modem (Mwave) for Linux is a WinModem. It is composed of a diff --git a/drivers/char/pcmcia/Kconfig b/drivers/char/pcmcia/Kconfig index 6614416a862..2a166d56738 100644 --- a/drivers/char/pcmcia/Kconfig +++ b/drivers/char/pcmcia/Kconfig @@ -7,7 +7,7 @@ menu "PCMCIA character devices" config SYNCLINK_CS tristate "SyncLink PC Card support" - depends on PCMCIA + depends on PCMCIA && TTY help Enable support for the SyncLink PC Card serial adapter, running asynchronous and HDLC communications up to 512Kbps. The port is @@ -45,7 +45,7 @@ config CARDMAN_4040 config IPWIRELESS tristate "IPWireless 3G UMTS PCMCIA card support" - depends on PCMCIA && NETDEVICES + depends on PCMCIA && NETDEVICES && TTY select PPP help This is a driver for 3G UMTS PCMCIA card from IPWireless company. In diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index bdca5111eb9..cf474b2df4a 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -803,7 +803,7 @@ config I2C_PARPORT_LIGHT config I2C_TAOS_EVM tristate "TAOS evaluation module" - depends on EXPERIMENTAL + depends on EXPERIMENTAL && TTY select SERIO select SERIO_SERPORT default n diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig index 56eb471b557..055bcaba774 100644 --- a/drivers/input/joystick/Kconfig +++ b/drivers/input/joystick/Kconfig @@ -132,6 +132,8 @@ config JOYSTICK_TMDC source "drivers/input/joystick/iforce/Kconfig" +if TTY + config JOYSTICK_WARRIOR tristate "Logitech WingMan Warrior joystick" select SERIO @@ -205,6 +207,8 @@ config JOYSTICK_ZHENHUA To compile this driver as a module, choose M here: the module will be called zhenhua. +endif # TTY + config JOYSTICK_DB9 tristate "Multisystem, Sega Genesis, Saturn joysticks and gamepads" depends on PARPORT diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 5a240c60342..008f96aaf19 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -69,6 +69,7 @@ config KEYBOARD_ATARI config KEYBOARD_ATKBD tristate "AT keyboard" if EXPERT || !X86 default y + depends on TTY select SERIO select SERIO_LIBPS2 select SERIO_I8042 if X86 @@ -153,6 +154,7 @@ config KEYBOARD_BFIN config KEYBOARD_LKKBD tristate "DECstation/VAXstation LK201/LK401 keyboard" + depends on TTY select SERIO help Say Y here if you want to use a LK201 or LK401 style serial @@ -268,7 +270,7 @@ config KEYBOARD_HIL_OLD config KEYBOARD_HIL tristate "HP HIL keyboard/pointer support" - depends on GSC || HP300 + depends on (GSC || HP300) && TTY default y select HP_SDC select HIL_MLC @@ -400,6 +402,7 @@ config KEYBOARD_IMX config KEYBOARD_NEWTON tristate "Newton keyboard" + depends on TTY select SERIO help Say Y here if you have a Newton keyboard on a serial port. @@ -479,6 +482,8 @@ config KEYBOARD_SAMSUNG To compile this driver as a module, choose M here: the module will be called samsung-keypad. +if TTY + config KEYBOARD_STOWAWAY tristate "Stowaway keyboard" select SERIO @@ -501,6 +506,8 @@ config KEYBOARD_SUNKBD To compile this driver as a module, choose M here: the module will be called sunkbd. +endif # TTY + config KEYBOARD_SH_KEYSC tristate "SuperH KEYSC keypad support" depends on SUPERH || ARCH_SHMOBILE @@ -597,6 +604,7 @@ config KEYBOARD_TWL4030 config KEYBOARD_XTKBD tristate "XT keyboard" + depends on TTY select SERIO help Say Y here if you want to use the old IBM PC/XT keyboard (or diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig index cd6268cf7cd..fc160f72dc4 100644 --- a/drivers/input/mouse/Kconfig +++ b/drivers/input/mouse/Kconfig @@ -14,6 +14,7 @@ if INPUT_MOUSE config MOUSE_PS2 tristate "PS/2 mouse" + depends on TTY default y select SERIO select SERIO_LIBPS2 @@ -138,6 +139,7 @@ config MOUSE_PS2_OLPC config MOUSE_SERIAL tristate "Serial mouse" + depends on TTY select SERIO help Say Y here if you have a serial (RS-232, COM port) mouse connected @@ -262,6 +264,7 @@ config MOUSE_RISCPC config MOUSE_VSXXXAA tristate "DEC VSXXX-AA/GA mouse and VSXXX-AB tablet" + depends on TTY select SERIO help Say Y (or M) if you want to use a DEC VSXXX-AA (hockey diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig index 4a4e182c33e..81ee7551148 100644 --- a/drivers/input/serio/Kconfig +++ b/drivers/input/serio/Kconfig @@ -4,6 +4,7 @@ config SERIO tristate "Serial I/O support" if EXPERT || !X86 default y + depends on TTY help Say Yes here if you have any input device that uses serial I/O to communicate with the system. This includes the diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 515cfe79054..3d6f548dd3d 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -192,6 +192,8 @@ config TOUCHSCREEN_DA9052 To compile this driver as a module, choose M here: the module will be called da9052_tsi. +if TTY + config TOUCHSCREEN_DYNAPRO tristate "Dynapro serial touchscreen" select SERIO @@ -216,6 +218,8 @@ config TOUCHSCREEN_HAMPSHIRE To compile this driver as a module, choose M here: the module will be called hampshire. +endif # TTY + config TOUCHSCREEN_EETI tristate "EETI touchscreen panel support" depends on I2C @@ -237,6 +241,7 @@ config TOUCHSCREEN_EGALAX config TOUCHSCREEN_FUJITSU tristate "Fujitsu serial touchscreen" + depends on TTY select SERIO help Say Y here if you have the Fujitsu touchscreen (such as one @@ -275,6 +280,8 @@ config TOUCHSCREEN_S3C2410 To compile this driver as a module, choose M here: the module will be called s3c2410_ts. +if TTY + config TOUCHSCREEN_GUNZE tristate "Gunze AHL-51S touchscreen" select SERIO @@ -311,6 +318,8 @@ config TOUCHSCREEN_WACOM_W8001 To compile this driver as a module, choose M here: the module will be called wacom_w8001. +endif # TTY + config TOUCHSCREEN_WACOM_I2C tristate "Wacom Tablet support (I2C)" depends on I2C @@ -369,6 +378,8 @@ config TOUCHSCREEN_MMS114 To compile this driver as a module, choose M here: the module will be called mms114. +if TTY + config TOUCHSCREEN_MTOUCH tristate "MicroTouch serial touchscreens" select SERIO @@ -393,6 +404,8 @@ config TOUCHSCREEN_INEXIO To compile this driver as a module, choose M here: the module will be called inexio. +endif # TTY + config TOUCHSCREEN_INTEL_MID tristate "Intel MID platform resistive touchscreen" depends on INTEL_SCU_IPC @@ -450,6 +463,7 @@ config TOUCHSCREEN_HTCPEN config TOUCHSCREEN_PENMOUNT tristate "Penmount serial touchscreen" + depends on TTY select SERIO help Say Y here if you have a Penmount serial touchscreen connected to @@ -493,6 +507,8 @@ config TOUCHSCREEN_TNETV107X To compile this driver as a module, choose M here: the module will be called tnetv107x-ts. +if TTY + config TOUCHSCREEN_TOUCHRIGHT tristate "Touchright serial touchscreen" select SERIO @@ -517,6 +533,8 @@ config TOUCHSCREEN_TOUCHWIN To compile this driver as a module, choose M here: the module will be called touchwin. +endif # TTY + config TOUCHSCREEN_TI_AM335X_TSC tristate "TI Touchscreen Interface" depends on MFD_TI_AM335X_TSCADC @@ -790,6 +808,8 @@ config TOUCHSCREEN_USB_EASYTOUCH Say Y here if you have an EasyTouch USB Touch controller. If unsure, say N. +if TTY + config TOUCHSCREEN_TOUCHIT213 tristate "Sahara TouchIT-213 touchscreen" select SERIO @@ -813,6 +833,8 @@ config TOUCHSCREEN_TSC_SERIO To compile this driver as a module, choose M here: the module will be called tsc40. +endif # TTY + config TOUCHSCREEN_TSC2005 tristate "TSC2005 based touchscreens" depends on SPI_MASTER && GENERIC_HARDIRQS diff --git a/drivers/ipack/devices/Kconfig b/drivers/ipack/devices/Kconfig index 0b82fdc198c..907a8cb48f2 100644 --- a/drivers/ipack/devices/Kconfig +++ b/drivers/ipack/devices/Kconfig @@ -1,6 +1,6 @@ config SERIAL_IPOCTAL tristate "IndustryPack IP-OCTAL uart support" - depends on IPACK_BUS + depends on IPACK_BUS && TTY help This driver supports the IPOCTAL serial port device for the IndustryPack bus. default n diff --git a/drivers/isdn/Kconfig b/drivers/isdn/Kconfig index 86cd75a0e84..ef661acdda1 100644 --- a/drivers/isdn/Kconfig +++ b/drivers/isdn/Kconfig @@ -22,6 +22,7 @@ if ISDN menuconfig ISDN_I4L tristate "Old ISDN4Linux (deprecated)" + depends on TTY ---help--- This driver allows you to use an ISDN adapter for networking connections and as dialin/out device. The isdn-tty's have a built diff --git a/drivers/isdn/capi/Kconfig b/drivers/isdn/capi/Kconfig index 15c3ffd9d86..f0468658004 100644 --- a/drivers/isdn/capi/Kconfig +++ b/drivers/isdn/capi/Kconfig @@ -18,6 +18,7 @@ config CAPI_TRACE config ISDN_CAPI_MIDDLEWARE bool "CAPI2.0 Middleware support" + depends on TTY help This option will enhance the capabilities of the /dev/capi20 interface. It will provide a means of moving a data connection, diff --git a/drivers/isdn/gigaset/Kconfig b/drivers/isdn/gigaset/Kconfig index b18a92c3218..dde5e09e626 100644 --- a/drivers/isdn/gigaset/Kconfig +++ b/drivers/isdn/gigaset/Kconfig @@ -1,5 +1,6 @@ menuconfig ISDN_DRV_GIGASET tristate "Siemens Gigaset support" + depends on TTY select CRC_CCITT select BITREVERSE help diff --git a/drivers/isdn/hardware/mISDN/Kconfig b/drivers/isdn/hardware/mISDN/Kconfig index eadc1cd34a2..b8611e3e5e7 100644 --- a/drivers/isdn/hardware/mISDN/Kconfig +++ b/drivers/isdn/hardware/mISDN/Kconfig @@ -76,6 +76,7 @@ config MISDN_NETJET tristate "Support for NETJet cards" depends on MISDN depends on PCI + depends on TTY select MISDN_IPAC select ISDN_HDLC select ISDN_I4L diff --git a/drivers/lguest/Kconfig b/drivers/lguest/Kconfig index 34ae49dc557..f9c43145a61 100644 --- a/drivers/lguest/Kconfig +++ b/drivers/lguest/Kconfig @@ -1,6 +1,6 @@ config LGUEST tristate "Linux hypervisor example code" - depends on X86_32 && EXPERIMENTAL && EVENTFD + depends on X86_32 && EXPERIMENTAL && EVENTFD && TTY select HVC_DRIVER ---help--- This is a very simple module which allows you to run diff --git a/drivers/media/radio/wl128x/Kconfig b/drivers/media/radio/wl128x/Kconfig index ea1e6545df3..f359be7e9dd 100644 --- a/drivers/media/radio/wl128x/Kconfig +++ b/drivers/media/radio/wl128x/Kconfig @@ -4,7 +4,7 @@ menu "Texas Instruments WL128x FM driver (ST based)" config RADIO_WL128X tristate "Texas Instruments WL128x FM Radio" - depends on VIDEO_V4L2 && RFKILL && GPIOLIB + depends on VIDEO_V4L2 && RFKILL && GPIOLIB && TTY select TI_ST if NET help Choose Y here if you have this FM radio chip. diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index b151b7c1bd5..4b2bb939dde 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -127,7 +127,7 @@ config PHANTOM config INTEL_MID_PTI tristate "Parallel Trace Interface for MIPI P1149.7 cJTAG standard" - depends on PCI + depends on PCI && TTY default n help The PTI (Parallel Trace Interface) driver directs diff --git a/drivers/misc/ti-st/Kconfig b/drivers/misc/ti-st/Kconfig index abb5de1afce..f34dcc51473 100644 --- a/drivers/misc/ti-st/Kconfig +++ b/drivers/misc/ti-st/Kconfig @@ -5,7 +5,7 @@ menu "Texas Instruments shared transport line discipline" config TI_ST tristate "Shared transport core driver" - depends on NET && GPIOLIB + depends on NET && GPIOLIB && TTY select FW_LOADER help This enables the shared transport core driver for TI diff --git a/drivers/mmc/card/Kconfig b/drivers/mmc/card/Kconfig index 3b1f783bf92..5562308699b 100644 --- a/drivers/mmc/card/Kconfig +++ b/drivers/mmc/card/Kconfig @@ -52,6 +52,7 @@ config MMC_BLOCK_BOUNCE config SDIO_UART tristate "SDIO UART/GPS class support" + depends on TTY help SDIO function driver for SDIO cards that implements the UART class, as well as the GPS class which appears like a UART. diff --git a/drivers/net/caif/Kconfig b/drivers/net/caif/Kconfig index abf4d7a9dcc..60c2142373c 100644 --- a/drivers/net/caif/Kconfig +++ b/drivers/net/caif/Kconfig @@ -6,7 +6,7 @@ comment "CAIF transport drivers" config CAIF_TTY tristate "CAIF TTY transport driver" - depends on CAIF + depends on CAIF && TTY default n ---help--- The CAIF TTY transport driver is a Line Discipline (ldisc) diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig index b56bd9e8095..72df3a306a0 100644 --- a/drivers/net/can/Kconfig +++ b/drivers/net/can/Kconfig @@ -13,7 +13,7 @@ config CAN_VCAN config CAN_SLCAN tristate "Serial / USB serial CAN Adaptors (slcan)" - depends on CAN + depends on CAN && TTY ---help--- CAN driver for several 'low cost' CAN interfaces that are attached via serial lines or via USB-to-serial adapters using the LAWICEL diff --git a/drivers/net/hamradio/Kconfig b/drivers/net/hamradio/Kconfig index 95dbcfdf131..bf5e5968768 100644 --- a/ |