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Input: gtco - remove driver

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The driver has its own HID descriptor parsing code, that had and still
has several issues discovered by syzbot and other tools. Ideally we
should move the driver over to the HID subsystem, so that it uses proven
parsing code.  However the devices in question are EOL, and GTCO is not
willing to extend resources for that, so let's simply remove the driver.

Note that our HID support has greatly improved over the last 10 years,
we may also consider reverting 6f8d9e26e7 ("hid-core.c: Adds all GTCO
CalComp Digitizers and InterWrite School Products to blacklist") and see
if GTCO devices actually work with normal HID drivers.

Link: https://lore.kernel.org/r/X8wbBtO5KidME17K@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2020-12-09 17:26:35 -08:00
parent 7ce8d91b8a
commit b2058cd93d
5 changed files with 0 additions and 1058 deletions
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1
arch/powerpc/configs/ppc6xx_defconfig
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@ -579,7 +579,6 @@ CONFIG_JOYSTICK_XPAD_LEDS=y
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=m
CONFIG_TABLET_USB_AIPTEK=m
CONFIG_TABLET_USB_GTCO=m
CONFIG_TABLET_USB_KBTAB=m
CONFIG_INPUT_MISC=y
CONFIG_INPUT_PCSPKR=m

12
drivers/input/tablet/Kconfig
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@ -38,18 +38,6 @@ config TABLET_USB_AIPTEK
To compile this driver as a module, choose M here: the
module will be called aiptek.
config TABLET_USB_GTCO
tristate "GTCO CalComp/InterWrite USB Support"
depends on USB && INPUT
help
Say Y here if you want to use the USB version of the GTCO
CalComp/InterWrite Tablet. Make sure to say Y to "Mouse support"
(CONFIG_INPUT_MOUSEDEV) and/or "Event interface support"
(CONFIG_INPUT_EVDEV) as well.
To compile this driver as a module, choose M here: the
module will be called gtco.
config TABLET_USB_HANWANG
tristate "Hanwang Art Master III tablet support (USB)"
depends on USB_ARCH_HAS_HCD

1
drivers/input/tablet/Makefile
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@ -6,7 +6,6 @@
obj-$(CONFIG_TABLET_USB_ACECAD) += acecad.o
obj-$(CONFIG_TABLET_USB_AIPTEK) += aiptek.o
obj-$(CONFIG_TABLET_USB_GTCO) += gtco.o
obj-$(CONFIG_TABLET_USB_HANWANG) += hanwang.o
obj-$(CONFIG_TABLET_USB_KBTAB) += kbtab.o
obj-$(CONFIG_TABLET_USB_PEGASUS) += pegasus_notetaker.o

1043
drivers/input/tablet/gtco.c
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File diff suppressed because it is too large Load Diff

1
kernel/configs/android-recommended.config
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@ -111,7 +111,6 @@ CONFIG_STRICT_KERNEL_RWX=y
CONFIG_SUSPEND_TIME=y
CONFIG_TABLET_USB_ACECAD=y
CONFIG_TABLET_USB_AIPTEK=y
CONFIG_TABLET_USB_GTCO=y
CONFIG_TABLET_USB_HANWANG=y
CONFIG_TABLET_USB_KBTAB=y
CONFIG_TASKSTATS=y