> From: Sasha Levin <sashal@xxxxxxxxxx>
> Sent: Monday, June 6, 2022 4:08 AM
> To: stable-commits@xxxxxxxxxxxxxxx; quic_jhugo@xxxxxxxxxxx
> Cc: KY Srinivasan <kys@xxxxxxxxxxxxx>; Haiyang Zhang
> <haiyangz@xxxxxxxxxxxxx>; Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>;
> Wei Liu <wei.liu@xxxxxxxxxx>; Dexuan Cui <decui@xxxxxxxxxxxxx>; Lorenzo
> Pieralisi <lorenzo.pieralisi@xxxxxxx>; Rob Herring <robh@xxxxxxxxxx>;
> Krzysztof Wilczyński <kw@xxxxxxxxx>; Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Subject: Patch "PCI: hv: Fix multi-MSI to allow more than one MSI vector" has
> been added to the 5.18-stable tree
>
> This is a note to let you know that I've just added the patch titled
>
> PCI: hv: Fix multi-MSI to allow more than one MSI vector
(+ stable@xxxxxxxxxxxxxxx)
Hi Sasha and stable kernel maintainers,
If we want to support multi-MSI in the pci-hyperv driver, we need all of the
4 patches:
08e61e861a0e ("PCI: hv: Fix multi-MSI to allow more than one MSI vector")
455880dfe292 ("PCI: hv: Fix hv_arch_irq_unmask() for multi-MSI")
b4b77778ecc5 ("PCI: hv: Reuse existing IRTE allocation in compose_msi_msg()")
a2bad844a67b ("PCI: hv: Fix interrupt mapping for multi-MSI")
Multi-MSI can't work properly if we only pick up the first patch.
We need to either pick up all the 4 patches to 5.18/5.17/etc. or pick up nothing.
I suggest we pick up all the 4 patches.
The patch author Jeffrey may want to chime in.
Thanks,
-- Dexuan
