This is a note to let you know that I've just added the patch titled vfio: IOMMU_API should be selected to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: vfio-iommu_api-should-be-selected.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 179209fa12709a3df8888c323b37315da2683c24 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe <jgg@xxxxxxxxxx> Date: Tue, 23 Feb 2021 15:17:46 -0400 Subject: vfio: IOMMU_API should be selected From: Jason Gunthorpe <jgg@xxxxxxxxxx> commit 179209fa12709a3df8888c323b37315da2683c24 upstream. As IOMMU_API is a kconfig without a description (eg does not show in the menu) the correct operator is select not 'depends on'. Using 'depends on' for this kind of symbol means VFIO is not selectable unless some other random kconfig has already enabled IOMMU_API for it. Fixes: cba3345cc494 ("vfio: VFIO core") Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Message-Id: <1-v1-df057e0f92c3+91-vfio_arm_compile_test_jgg@xxxxxxxxxx> Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx> Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/vfio/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/vfio/Kconfig +++ b/drivers/vfio/Kconfig @@ -21,7 +21,7 @@ config VFIO_VIRQFD menuconfig VFIO tristate "VFIO Non-Privileged userspace driver framework" - depends on IOMMU_API + select IOMMU_API select VFIO_IOMMU_TYPE1 if (X86 || S390 || ARM || ARM64) help VFIO provides a framework for secure userspace device drivers. Patches currently in stable-queue which might be from jgg@xxxxxxxxxx are queue-5.4/vfio-iommu_api-should-be-selected.patch