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| author | Max Bires <jbires@google.com> | 2017-01-03 08:18:07 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-21 09:32:41 +0200 |
| commit | 1cb293ab023642bc7e37e5a3b3bc7c125b93d08e (patch) | |
| tree | 9a7c1ab095a3deab0c4f0b8f7c131c26b7601e26 | |
| parent | ebe4deab5c805a7301e6967d984d01bb8ff58c78 (diff) | |
| download | linux-stable-1cb293ab023642bc7e37e5a3b3bc7c125b93d08e.tar.gz linux-stable-1cb293ab023642bc7e37e5a3b3bc7c125b93d08e.tar.bz2 linux-stable-1cb293ab023642bc7e37e5a3b3bc7c125b93d08e.zip | |
char: lack of bool string made CONFIG_DEVPORT always on
commit f2cfa58b136e4b06a9b9db7af5ef62fbb5992f62 upstream.
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>
| -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 fde005ef9d36..4ee2a10207d0 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -571,9 +571,12 @@ 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" |