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[RHEL-9.1.0 BZ 2068207] redhat: configs: Enable CONFIG_INTEL_IOMMU_DEBUGFS

Jerry Snitselaar requested to merge jsnitsel/centos-stream-9:intel-debugfs into main

Bugzilla: https://bugzilla.redhat.com/2068207

Testing: Booted debug kernel and verified intel iommu debugfs information is present.

Enable debugfs for Intel iommu in debug kernels to aid in debugging. This MR also contains a patch to clean up a kasan warning noticed when booting the debug kernel. As Kees notes in the commit in this case it is harmless, but cleaning it up to get rid of the warning.

Signed-off-by: Jerry Snitselaar jsnitsel@redhat.com

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