From: Naman Jain <[email protected]> Sent: Tuesday, October 13, 2026 1:42 AM > > On 10/13/2026 7:13 AM, Michael Kelley wrote: > > The functions for sending VMBus packets have changed. > > vmbus_sendpacket_mpb_desc() can target multiple ranges, and > > vmbus_sendpacket_pagebuffer() has been removed. vmbus_sendpacket_getid() > > has been added. Update the documentation accordingly. > > > > Fixes: 45a442fe369e ("Drivers: hv: vmbus: Remove > > vmbus_sendpacket_pagebuffer()") > > Cc: [email protected] > > Signed-off-by: Michael Kelley <[email protected]> > > --- > > Changes in v3: > > * Fixed typo in the documentation text [Sashiko] > > > > Changes in v2: > > * Add vmbus_sendpacket_getid() to the documentation. [Naman Jain] > > > > Documentation/virt/hyperv/vmbus.rst | 17 +++++++++-------- > > 1 file changed, 9 insertions(+), 8 deletions(-) > > > > diff --git a/Documentation/virt/hyperv/vmbus.rst > > b/Documentation/virt/hyperv/vmbus.rst > > index 654bb4849972..c546e821ce6b 100644 > > --- a/Documentation/virt/hyperv/vmbus.rst > > +++ b/Documentation/virt/hyperv/vmbus.rst > > @@ -141,14 +141,15 @@ Three functions exist to send VMBus channel messages: > > > > 1. vmbus_sendpacket(): Control-only messages and messages with > > embedded data -- no GPAs > > -2. vmbus_sendpacket_pagebuffer(): Message with list of GPAs > > - identifying data to transfer. An offset and length is > > - associated with each GPA so that multiple discontinuous areas > > - of guest memory can be targeted. > > -3. vmbus_sendpacket_mpb_desc(): Message with list of GPAs > > - identifying data to transfer. A single offset and length is > > - associated with a list of GPAs. The GPAs must describe a > > - single logical area of guest memory to be targeted. > > +2. vmbus_sendpacket_getid(): Similar to vmbus_sendpacket() but returns > > + a transaction ID that is matched against a reply from the Hyper-V > > + host. Useful when the struct completion (or other rendezvous data) > > + must reside on the caller's stack. By invalidating the transaction > > + ID before exiting the function due to a timeout or other error, a > > + late arriving interrupt is assured to not trash the stack. > > +3. vmbus_sendpacket_mpb_desc(): Message with one or more data ranges > > + to target. Each range consists of a single offset and length plus > > + a list of GPAs that describe a logical area of guest memory. > > > > Historically, Linux guests have trusted Hyper-V to send well-formed > > and valid messages, and Linux drivers for synthetic devices did not > > We can retain the review tags for minor edits. > > Reviewed-by: Naman Jain <[email protected]>
I just forgot to carry your previous R-b tag forward. :-( Thanks for doing it again. Michael
