diff options
| author | Max Bires <jbires@google.com> | 2017-01-03 08:18:07 -0800 |
|---|---|---|
| committer | Mark Salyzyn <salyzyn@google.com> | 2017-04-20 20:57:10 +0000 |
| commit | c0fb2f9e5814e4cf8d6e64c00bdacdbf1668ab62 (patch) | |
| tree | 7b5cbb7d8500dca7eb20ed0f738a10bcfcad44a9 /drivers | |
| parent | 738e1a1a468217bd5cb3fdc19582d4a1778bb510 (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
Diffstat (limited to 'drivers')
| -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 b130d38cf55c..3143db57ce44 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" |