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Fixing an issue that caused DEVPORT to always be set.

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Without a bool string present, using "# CONFIG_DEVPORT is not set" in
defconfig files would not actually unset devport. This ensured that
/dev/port was always on, but there are reasons a user may wish to
disable it (smaller kernel, attack surface reduction) if it's not being
used. Adding a message here in order to make this user visible.

Bug: 36604779
Change-Id: Iab41b5c1ba44e9e52361fbfd8b1863b88eee417b
Signed-off-by: Max Bires <jbires@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Bug: 33301618
This commit is contained in:
Max Bires 2017-01-05 14:23:23 -08:00 committed by Nolen Johnson
parent a228ac4a97
commit 795cd31308
1 changed files with 4 additions and 1 deletions
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5
drivers/char/Kconfig
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@ -593,10 +593,13 @@ config TELCLOCK
controlling the behavior of this hardware.
config DEVPORT
bool
bool "/dev/port character device"
depends on !M68K
depends on ISA || PCI
default y
help
Say Y here if you want to support the /dev/port device. The
/dev/port device is similar to /dev/mem, but for I/O ports.
config DCC_TTY
tristate "DCC tty driver"