[PATCH 0/4] AMD IOMMU kdump fix plus cleanups (v2)

[Chris Wright]

Series includes the following patches:

  x86/amd-iommu: enable iommu before attaching devices
  x86/amd-iommu: warn when issuing command to uninitialized cmd buffer
  Revert "x86: disable IOMMUs on kernel crash"
  x86/amd-iommu: use for_each_pci_dev

First one is the primary bug fix.

v2
- add disable_iommus on failure path
- move removal of CMD_BUFFER_UNINITIALIZED to iommu_enable_command_buffer()
- fix ";;" typo in patch 2
- add Revert "x86: disable IOMMUs on kernel crash"
- add x86/amd-iommu: use for_each_pci_dev

thanks,
-chris