From: Heiko Carstens <hca@linux.ibm.com>
To: Steffen Eiden <seiden@linux.ibm.com>
Cc: Greg KH <greg@kroah.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Shuah Khan <shuah@kernel.org>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
David Hildenbrand <david@redhat.com>,
Nico Boehr <nrb@linux.ibm.com>,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
kvm@vger.kernel.org
Subject: Re: [PATCH v4 1/2] drivers/s390/char: Add Ultravisor io device
Date: Wed, 18 May 2022 13:47:18 +0200 [thread overview]
Message-ID: <YoTcxhulemnqiUbC@osiris> (raw)
In-Reply-To: <20220510144724.3321985-2-seiden@linux.ibm.com>
On Tue, May 10, 2022 at 02:47:23PM +0000, Steffen Eiden wrote:
> diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig
> index 6cc4b19acf85..e9b9902abbaf 100644
> --- a/drivers/s390/char/Kconfig
> +++ b/drivers/s390/char/Kconfig
> @@ -100,6 +100,16 @@ config SCLP_OFB
> This option enables the Open-for-Business interface to the s390
> Service Element.
>
> +config S390_UV_UAPI
> + def_tristate y
> + prompt "Ultravisor userspace API"
> + help
> + Selecting exposes parts of the UV interface to userspace
> + by providing a misc character device at /dev/uv.
> + Using IOCTLs one can interact with the UV.
> + The device is only available if the Ultravisor
> + Facility (158) is present.
Is there a reason why this is default "y"? If you think this should be
compiled into the kernel if used, then why allow to make it a module
at all?
Instead you could get rid of a couple if lines of code.
next prev parent reply other threads:[~2022-05-18 11:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-10 14:47 [PATCH v4 0/2] s390: Ultravisor device Steffen Eiden
2022-05-10 14:47 ` [PATCH v4 1/2] drivers/s390/char: Add Ultravisor io device Steffen Eiden
2022-05-12 14:33 ` Claudio Imbrenda
2022-05-13 7:45 ` Steffen Eiden
2022-05-13 8:37 ` Claudio Imbrenda
2022-05-13 12:35 ` Steffen Eiden
2022-05-16 11:33 ` Steffen Eiden
2022-05-16 14:51 ` Claudio Imbrenda
2022-05-17 8:38 ` Janosch Frank
2022-05-17 8:42 ` Steffen Eiden
2022-05-17 12:41 ` Janosch Frank
2022-05-18 11:47 ` Heiko Carstens [this message]
2022-05-18 13:45 ` Janosch Frank
2022-05-18 13:49 ` Steffen Eiden
2022-05-19 5:37 ` Heiko Carstens
2022-05-19 9:13 ` Janosch Frank
2022-05-10 14:47 ` [PATCH v4 2/2] selftests: drivers/s390x: Add uvdevice tests Steffen Eiden
2022-05-21 13:53 ` Muhammad Usama Anjum
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YoTcxhulemnqiUbC@osiris \
--to=hca@linux.ibm.com \
--cc=agordeev@linux.ibm.com \
--cc=borntraeger@linux.ibm.com \
--cc=david@redhat.com \
--cc=frankja@linux.ibm.com \
--cc=greg@kroah.com \
--cc=imbrenda@linux.ibm.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=nrb@linux.ibm.com \
--cc=seiden@linux.ibm.com \
--cc=shuah@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).