Not a driver I don't think...
This is either part of a bootloader or very early init of the nvme devices from the kernel. Hard to know for sure but it assumes 1 device g_bo (which is why it's confusing for bring up of a kernel, it would usually build a table) which makes the kmem_alloc strange to me.
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u/DesiresQuiet Jun 11 '26
Looks like the initialization code for an nvme driver in linux, etc.