linux-kernel - [PATCH v5 0/2] virtio: feature related cleanups

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Message-ID: <cover.1763535083.git.mst@redhat.com>
Date: Wed, 19 Nov 2025 01:55:09 -0500
From: "Michael S. Tsirkin" <mst@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Andrew Lunn <andrew@...n.ch>, Paolo Abeni <pabeni@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Eugenio Pérez <eperezma@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Jonathan Corbet <corbet@....net>, kvm@...r.kernel.org,
	virtualization@...ts.linux.dev, netdev@...r.kernel.org,
	linux-doc@...r.kernel.org
Subject: [PATCH v5 0/2] virtio: feature related cleanups


Cleanup around handling of feature bits:
- address word/dword/qword confusion
- simplify interfaces so callers do not need to
  remember in which 64 bit chunk each bit belongs

changes from v4: address comments by Jason
  move features variable to beginning of block
  unsigned long -> u64 - they are not the same
changes from v3:
  drop an out of date unnecessary kdoc parser change

changes from v2:
- drop unnecessary casts
- rework the interface to use array of bits not


Michael S. Tsirkin (2):
  virtio: clean up features qword/dword terms
  vhost: switch to arrays of feature bits

 drivers/vhost/net.c                    | 39 ++++++++++++------------
 drivers/vhost/scsi.c                   |  9 ++++--
 drivers/vhost/test.c                   | 10 ++++--
 drivers/vhost/vhost.h                  | 42 +++++++++++++++++++++-----
 drivers/vhost/vsock.c                  | 10 +++---
 drivers/virtio/virtio.c                | 12 ++++----
 drivers/virtio/virtio_debug.c          | 10 +++---
 drivers/virtio/virtio_pci_modern_dev.c |  6 ++--
 include/linux/virtio.h                 |  2 +-
 include/linux/virtio_config.h          |  2 +-
 include/linux/virtio_features.h        | 29 +++++++++---------
 include/linux/virtio_pci_modern.h      |  8 ++---
 12 files changed, 109 insertions(+), 70 deletions(-)

-- 
MST