linux-kernel - Re: [virtio-dev] [RFC PATCH v1 2/3] virtio-spi: Add virtio-spi.h (V4 draft specification).

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Date:   Wed, 13 Dec 2023 12:03:35 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Harald Mommer <harald.mommer@...nsynergy.com>
Cc:     virtio-dev@...ts.oasis-open.org,
        Haixu Cui <quic_haixcui@...cinc.com>,
        Mark Brown <broonie@...nel.org>, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, Harald.Mommer@...il.com,
        quic_ztu@...cinc.com, Matti Moell <Matti.Moell@...nsynergy.com>,
        Mikhail Golubev <Mikhail.Golubev@...nsynergy.com>,
        Alex Bennée <alex.bennee@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>
Subject: Re: [virtio-dev] [RFC PATCH v1 2/3] virtio-spi: Add virtio-spi.h (V4
 draft specification).

On 12-12-23, 19:58, Harald Mommer wrote:
> On 12.12.23 11:34, Viresh Kumar wrote:
> I'm working on V8. It's coming to an end, will still have to check some
> details but it's close. Internal review pending. Now there is a V9 and I
> will also have to look at this. Maybe I will send V8 and subsequently update
> to V9,

I hope you are talking about V8/V9 of the spec here, as I only see one
version of the Linux driver on the list. Please keep me in cc if
possible.

> > On 27-10-23, 18:10, Harald Mommer wrote:
> > > +++ b/include/uapi/linux/virtio_spi.h
> > > @@ -0,0 +1,130 @@
> > > +/* SPDX-License-Identifier: BSD-3-Clause */
> > Maybe this should be:
> > 
> > SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
> > 
> > ?
> Looking into what others do here. virtio_blk.h, virtio_input.h and
> virtio_iommu.h for example: None is using GPL-2.0 here. virtio_iommu.h is
> using exactly the same header as we do.

Looked at all headers for SPDX License in include/uapi/ and this is
what I see (Yes there are many non SPDX licenses there):

    522 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
    106 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
     18 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
     16 /* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
     16 /* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
     11 /* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
      6 /* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */
      5 /* SPDX-License-Identifier: BSD-3-Clause */
      4 /* SPDX-License-Identifier: LGPL-2.1 WITH Linux-syscall-note */
      4 /* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
      4 /* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
      3 /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */
      2 /* SPDX-License-Identifier: MIT */
      2 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
      2 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR CDDL-1.0) */
      2 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
      2 /* SPDX-License-Identifier: GPL-2.0-or-later WITH Linux-syscall-note */
      1 /* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR MIT) */
      1 /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */
      1 /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) */
      1 /* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note*/

Also Documentation/process/license-rules.rst says:

"The license described in the COPYING file applies to the kernel source
as a whole, though individual source files can have a different license
which is required to be compatible with the GPL-2.0::

...

Aside from that, individual files can be provided under a dual license,
e.g. one of the compatible GPL variants and alternatively under a
permissive license like BSD, MIT etc."

And so I thought we may want this to be a dual license.

> > > +/* All config fields are read-only for the Virtio SPI driver */
> > > +struct virtio_spi_config {
> > Can you please add proper doc style comments for the structures ?
> Checking my current code. This is updated in the V8 version.

V8 of this patch ?

-- 
viresh