diff options
| author | Max Bires <jbires@google.com> | 2017-01-03 08:18:07 -0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-25 11:28:21 +0200 |
| commit | 0e60814cd4d14960ab83b3336c835b6f34b7f9de (patch) | |
| tree | 3074093cba6abf08b8f9c4e69411dab0e584aa99 | |
| parent | 87123816bdd6b9a566a7829925c1cac3d9fda834 (diff) | |
UPSTREAM: char: lack of bool string made CONFIG_DEVPORT always on
(cherry pick from 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>
Bug: 37210310
Bug: 36604779
Change-Id: Ib1e947526f6c6f7cdf6389923287631056f32c36
| -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 01aad1185..f80ab4b3f 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -592,9 +592,12 @@ 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" |