Commit f800bced authored by Max Bires's avatar Max Bires Committed by Sasha Levin

char: lack of bool string made CONFIG_DEVPORT always on

[ Upstream commit f2cfa58b ]

Without a bool string present, using "# CONFIG_DEVPORT is not set" in
defconfig files would not actually unset devport. This esnured 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.
Signed-off-by: default avatarMax Bires <jbires@google.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
parent d1cdf638
...@@ -583,9 +583,12 @@ config TELCLOCK ...@@ -583,9 +583,12 @@ config TELCLOCK
controlling the behavior of this hardware. controlling the behavior of this hardware.
config DEVPORT config DEVPORT
bool bool "/dev/port character device"
depends on ISA || PCI depends on ISA || PCI
default y 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.
source "drivers/s390/char/Kconfig" source "drivers/s390/char/Kconfig"
......
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