Thread (6 messages) flat view 6 messages, 2 authors, 9d ago

Re: [PATCH v3 2/4] misc: vmw_zerocopy: Add VMware zero-copy buffer sharing driver

From: Greg KH <gregkh@linuxfoundation.org>
Date: 2026-09-15 07:15:27
Also in: linux-kselftest, lkml

On Mon, Sep 14, 2026 at 01:22:07PM -0700, Rishi Chhibber wrote:
Summary of changes:
- Add drivers/misc/vmw_zerocopy_core.c: the misc character device
  /dev/vmw_zc, its single ioctl, page pinning and PFN collection
- Add drivers/misc/vmw_zerocopy_vmci.c: the VMCI datagram transport backend
- Add drivers/misc/vmw_zerocopy_priv.h: the wire-format message structs and
  the struct vmw_zc_transport_ops interface that joins the two
- Add include/uapi/linux/vmw_zerocopy.h: struct vmw_zc_guest_message and
  VMW_ZC_IOCTL_MSG
- Register ioctl magic 0xDC in
  Documentation/userspace-api/ioctl/ioctl-number.rst
- Add the VMW_ZC Kconfig symbol and a MAINTAINERS entry
This all goes below the --- line, right?  Otherwise it would show up in
the changelog which doesn't make sense :(

The kernel documentation should explain all of this, how did this pass
internal review?

thanks,

greg k-h
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