From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Jiri Slaby <jslaby@suse.com>,
linux-serial@vger.kernel.org, linux-s390@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] serial: forbid 8250 on s390
Date: Tue, 12 Dec 2017 09:48:08 +0100 [thread overview]
Message-ID: <20171212084808.GA14030@kroah.com> (raw)
In-Reply-To: <20171212080835.23610-1-borntraeger@de.ibm.com>
On Tue, Dec 12, 2017 at 09:08:35AM +0100, Christian Borntraeger wrote:
> 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<x> 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 <alice@linux.vnet.ibm.com>
> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
> Reviewed-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
> ---
> drivers/tty/serial/8250/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
Does this need to be backported to any stable kernels? Or does anyone
who runs them on s390 already have this config option disabled?
thanks,
greg k-h
next prev parent reply other threads:[~2017-12-12 8:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-12 8:08 [PATCH] serial: forbid 8250 on s390 Christian Borntraeger
2017-12-12 8:48 ` Greg Kroah-Hartman [this message]
2017-12-12 8:56 ` Christian Borntraeger
2017-12-12 15:50 ` Alan Cox
2017-12-12 17:50 ` Christian Borntraeger
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