diff options
| author | Max Bires <jbires@google.com> | 2017-01-03 08:18:07 -0800 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-06-13 09:29:16 -0400 |
| commit | f800bcede54dad3f50ece4fbee90e5053ac4bccf (patch) | |
| tree | a7803d4ab44002b7081eeabc512921e06897e2e4 /drivers/char | |
| parent | d1cdf638cde8360f5039afe3ee700435f431e4f3 (diff) | |
char: lack of bool string made CONFIG_DEVPORT always on
[ Upstream commit f2cfa58b136e4b06a9b9db7af5ef62fbb5992f62 ]
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: Max Bires <jbires@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/Kconfig | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index b0b548b424f7..dcfb0234d449 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -583,9 +583,12 @@ config TELCLOCK controlling the behavior of this hardware. config DEVPORT - bool + bool "/dev/port character device" 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. source "drivers/s390/char/Kconfig" |