https://bugzilla.kernel.org/show_bug.cgi?id=201753 --- Comment #17 from David Coe (david.coe@xxxxxxxxxx) --- Again, good day! Two re-builds using Alex's (one-line) patch, for kernels 5.8.18 and 5.10.11. Both give on the Ryzen 2400G: [ 0.374138] pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported [ 0.374141] pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40 [ 0.375457] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank). [ 0.626269] AMD-Vi: AMD IOMMUv2 driver by Joerg Roedel <jroedel@xxxxxxx> I don't know how significant an extra 125 msec on boot time is but, on grounds of simplicity and elegance, I'd vote for Alex :-). Are there any downsides? Much appreciated all. David -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.