From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Borntraeger Subject: [PATCH] serial: forbid 8250 on s390 Date: Tue, 12 Dec 2017 09:08:35 +0100 Message-ID: <20171212080835.23610-1-borntraeger@de.ibm.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Archive: List-Post: To: Greg Kroah-Hartman , Jiri Slaby Cc: linux-serial@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Christian Borntraeger List-ID: Using "make kvmconfig" results in a potentially unusable linux image on s390. The reason is that both the (default on s390) sclp consoles as well as the 8250 console register a ttyS as console. Since there will be no 8250 on s390 let's fence 8250. This will ensure that there is always a working sclp console. Reported-by: Alice Frosi Signed-off-by: Christian Borntraeger Reviewed-by: Hendrik Brueckner --- drivers/tty/serial/8250/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index a5c0ef1..16b1496 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -5,6 +5,7 @@ config SERIAL_8250 tristate "8250/16550 and compatible serial support" + depends on !S390 select SERIAL_CORE ---help--- This selects whether you want to include the driver for the standard -- 2.9.4