diff options
| author | Max Bires <jbires@google.com> | 2017-01-03 08:18:07 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-21 09:31:22 +0200 |
| commit | a9da1ac37ccfc29e8b29855604477a09c9b7b114 (patch) | |
| tree | a76ae41c63c563b4fb1e8a75c4bb5d0c0a063e8f | |
| parent | 666452ffdbf700d8ca15d0b75070f3487ccae4fc (diff) | |
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 dcc09739a54e..8453a49471d7 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" |