On 25.02.22 19:39, Jason A. Donenfeld wrote:
Okay, the final piece, userspace:
/sys/bus/acpi/devices/QEMUVGID:00/modalias gives:
acpi:QEMUVGID:VM_GEN_COUNTER:
modinfo -F alias vmgenid.ko gives:
acpi*:VM_GEN_COUNTER:*
udev src uses fnmatch.
Bash confirms a match:
$ [[ "acpi:QEMUVGID:VM_GEN_COUNTER:" == acpi*:VM_GEN_COUNTER:* ]] &&
echo matches
matches
So I think with ACPI_ID_LEN --> 16 we are good to go.
Is the size increase (mostly rodata I suppose? Anywhere else?) measurable?
Alex
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