ksummit.lists.linux.dev archive mirror
 help / color / mirror / Atom feed
From: Jiri Kosina <jikos@kernel.org>
To: Dan Williams <dan.j.williams@intel.com>
Cc: ksummit@lists.linux.dev, linux-cxl@vger.kernel.org,
	 linux-rdma@vger.kernel.org, netdev@vger.kernel.org,
	jgg@nvidia.com
Subject: Re: [MAINTAINERS SUMMIT] Device Passthrough Considered Harmful?
Date: Tue, 23 Jul 2024 13:20:26 +0200 (CEST)	[thread overview]
Message-ID: <nycvar.YFH.7.76.2407231320210.11380@cbobk.fhfr.pm> (raw)
In-Reply-To: <668c67a324609_ed99294c0@dwillia2-xfh.jf.intel.com.notmuch>

On Mon, 8 Jul 2024, Dan Williams wrote:

> 2/ Device passthrough, kernel passing opaque payloads, is already taken
>    for granted in many subsystems. USB and HID have "raw" interfaces

Just as a completely random datapoint here: after I implemented hidraw 
inteface long time ago, I was a little bit hesitant about really merging 
it, because there was a general fear that this would shatter the HID 
driver ecosystem, making it difficult for people to find proper drivers 
for their devices, etc.

Turns out that that didn't happen. Drivers for generic devices are still 
implemented properly in the kernel, and hidraw is mostly used for rather 
specific, one-off solutions, where the vendor's business plan is "ship 
this one appliance and forget forever", which doesn't really cause any 
harm to the whole ecosystem.

-- 
Jiri Kosina
SUSE Labs


  parent reply	other threads:[~2024-07-23 11:20 UTC|newest]

Thread overview: 126+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-08 22:26 Dan Williams
2024-07-09  6:09 ` Christoph Hellwig
2024-07-09 19:43   ` Dan Williams
2024-07-10 13:05     ` Jason Gunthorpe
2024-07-21 18:51       ` Laurent Pinchart
2024-07-22 13:27         ` Jason Gunthorpe
2024-07-09 10:01 ` Greg KH
2024-07-09 12:25   ` Leon Romanovsky
2024-07-09 12:33     ` Greg KH
2024-07-09 12:47       ` Leon Romanovsky
2024-07-11 14:07         ` Jason Gunthorpe
2024-07-09 20:09   ` Dan Williams
2024-07-09 16:02 ` James Bottomley
2024-07-09 22:15   ` Dan Williams
2024-07-10 13:22     ` Jonathan Cameron
2024-07-11 11:00       ` Jonathan Cameron
2024-07-11 15:05       ` Jason Gunthorpe
2024-07-11 17:01         ` Jonathan Cameron
2024-07-11 17:45           ` Jason Gunthorpe
2024-07-11 16:36       ` Dan Williams
2024-07-12 10:37         ` Jonathan Cameron
2024-07-21 19:25     ` Laurent Pinchart
2024-07-22  7:31       ` Leon Romanovsky
2024-07-22  8:53         ` Laurent Pinchart
2024-07-22 10:44           ` Leon Romanovsky
2024-07-22 11:10             ` Laurent Pinchart
2024-07-22 13:28               ` Leon Romanovsky
2024-07-22 14:13                 ` Laurent Pinchart
2024-07-22 14:43                   ` Jason Gunthorpe
2024-07-22 10:42       ` Ricardo Ribalda Delgado
2024-07-22 11:18         ` Laurent Pinchart
2024-07-22 11:56           ` Ricardo Ribalda Delgado
2024-07-25 20:01             ` Laurent Pinchart
2024-07-26  8:04               ` Ricardo Ribalda Delgado
2024-07-26 10:59                 ` Laurent Pinchart
2024-07-26 15:40                   ` Ricardo Ribalda Delgado
2024-07-28 17:18                     ` Laurent Pinchart
2024-07-29  9:58                       ` Ricardo Ribalda Delgado
2024-07-29 10:31                         ` Laurent Pinchart
2024-07-31 11:54                         ` Sakari Ailus
2024-07-31 13:15                           ` Daniel Vetter
2024-08-02 15:07                             ` Laurent Pinchart
2024-08-13 10:17                             ` Tomasz Figa
2024-08-13 10:26                               ` Laurent Pinchart
2024-08-13 10:33                                 ` Tomasz Figa
2024-08-13 10:58                                   ` Laurent Pinchart
2024-07-11 13:50   ` Jason Gunthorpe
2024-07-11 15:16     ` James Bottomley
2024-07-11 16:29       ` Jason Gunthorpe
2024-07-23 11:20 ` Jiri Kosina [this message]
2024-07-23 11:36   ` James Bottomley
2024-07-23 23:22     ` Jiri Kosina
2024-07-24 20:12       ` James Bottomley
2024-07-24 20:00     ` Laurent Pinchart
2024-07-24 20:37       ` James Bottomley
2024-07-24 21:10         ` Steven Rostedt
2024-07-25 19:31         ` Laurent Pinchart
2024-07-25 19:43           ` Jason Gunthorpe
2024-07-25 20:07             ` Laurent Pinchart
2024-07-25 23:39               ` Jason Gunthorpe
2024-07-26  8:04               ` Ricardo Ribalda Delgado
2024-07-26 12:49                 ` Laurent Pinchart
2024-07-26 13:11                   ` Jason Gunthorpe
2024-07-26 14:22                     ` Laurent Pinchart
2024-07-26 15:43                       ` Ricardo Ribalda Delgado
2024-07-28 15:25                         ` Laurent Pinchart
2024-07-29  9:57                           ` Ricardo Ribalda Delgado
2024-07-29 14:20                       ` Jason Gunthorpe
2024-07-26  8:03           ` Ricardo Ribalda Delgado
2024-07-26 13:22             ` Laurent Pinchart
2024-07-26 15:44               ` Ricardo Ribalda Delgado
2024-07-28 17:02                 ` Laurent Pinchart
2024-07-26 16:49           ` James Bottomley
2024-07-28 16:44             ` Laurent Pinchart
2024-07-26 17:33         ` Daniel Vetter
2024-07-29 14:10           ` Jason Gunthorpe
2024-07-25  9:26       ` Ricardo Ribalda Delgado
2024-07-25 10:51         ` Wolfram Sang
2024-07-25 12:23         ` Leon Romanovsky
2024-07-25 13:02           ` Ricardo Ribalda Delgado
2024-07-25 13:20             ` Leon Romanovsky
2024-07-25 13:29               ` Mark Brown
2024-07-25 14:18                 ` Leon Romanovsky
2024-07-25 14:22                   ` James Bottomley
2024-07-25 17:37                     ` Leon Romanovsky
2024-07-26 13:58                       ` James Bottomley
2024-07-25 19:42               ` Laurent Pinchart
2024-07-26  8:02                 ` Ricardo Ribalda Delgado
2024-07-26 13:11                   ` Laurent Pinchart
2024-07-26 15:40                     ` Ricardo Ribalda Delgado
2024-07-28 11:23                       ` Laurent Pinchart
2024-07-29  9:56                         ` Ricardo Ribalda Delgado
2024-07-29 10:38                           ` Laurent Pinchart
2024-07-26 16:01                     ` James Bottomley
2024-07-26 17:56                       ` Laurent Pinchart
2024-07-25 13:44             ` Steven Rostedt
2024-07-26 14:27 ` Laurent Pinchart
2024-07-26 15:34   ` Steven Rostedt
2024-07-28 16:03     ` Laurent Pinchart
2024-07-27  0:16   ` Dan Williams
2024-07-28 11:18     ` Laurent Pinchart
2024-07-28 15:16       ` Greg KH
2024-07-28 15:34         ` Laurent Pinchart
2024-07-28 15:49         ` James Bottomley
2024-07-29  6:10           ` Greg KH
2024-07-31 12:33             ` James Bottomley
2024-07-31 12:45               ` Laurent Pinchart
2024-08-01 14:41               ` Jason Gunthorpe
2024-08-07  0:06                 ` Dan Williams
2024-08-07  0:13                   ` James Bottomley
2024-08-16 11:12                   ` Hannes Reinecke
2024-07-29 14:56           ` Jakub Kicinski
2024-07-29 15:16             ` Greg KH
2024-07-29 15:29             ` Jason Gunthorpe
2024-07-29 12:45 ` Jonathan Cameron
2024-07-29 13:38   ` Borislav Petkov
2024-07-29 14:29     ` Jonathan Cameron
2024-07-29 14:58       ` Jason Gunthorpe
2024-07-30 13:19         ` Borislav Petkov
2024-08-01 14:23           ` Jason Gunthorpe
2024-07-29 15:42   ` Jason Gunthorpe
2024-07-29 22:37     ` Dan Williams
2024-07-30  7:13       ` Daniel Vetter
2024-08-01 14:22         ` Jason Gunthorpe
2024-08-06  7:14           ` Daniel Vetter
2024-08-06 13:04             ` Jason Gunthorpe

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=nycvar.YFH.7.76.2407231320210.11380@cbobk.fhfr.pm \
    --to=jikos@kernel.org \
    --cc=dan.j.williams@intel.com \
    --cc=jgg@nvidia.com \
    --cc=ksummit@lists.linux.dev \
    --cc=linux-cxl@vger.kernel.org \
    --cc=linux-rdma@vger.kernel.org \
    --cc=netdev@vger.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