On 27/02/2019 04:25, Stephen Rothwell wrote: > Hi all, > > Today's linux-next merge of the vhost tree got conflicts in: > > drivers/iommu/Kconfig > drivers/iommu/Makefile > > between commit: > > 004240dcc222 ("iommu/hyper-v: Add Hyper-V stub IOMMU driver") > > from the iommu tree and commit: > > d906f4225497 ("iommu: Add virtio-iommu driver") > > from the vhost tree. > > I fixed it up (see below) and can carry the fix as necessary. This > is now fixed as far as linux-next is concerned, but any non trivial > conflicts should be mentioned to your upstream maintainer when your tree > is submitted for merging. You may also want to consider cooperating > with the maintainer of the conflicting tree to minimise any particularly > complex conflicts. Thanks Stephen, sorry about the extra work. The virtio-iommu driver was helpfully added to the vhost tree to ensure it doesn't break anything, but since Joerg has some reservations, only the hyper-v change will be merged in v5.1. I'd welcome a change of heart however, in which case the driver should probably go via the iommu tree to avoid conflicts. Thanks, Jean