kernel/efirt: Fix a kfree(NULL) panic when deleting a UEFI variable.There is no data in this case. Rest of function is ok, just a forgottendatasize check.
kernel - Incidental MPLOCK removal (non-performance)* Remove the MPLOCK in a ton of places that don't need it or can be trivially tokenized or locked.* Mostly non-performance adjustments, thoug
kernel - Incidental MPLOCK removal (non-performance)* Remove the MPLOCK in a ton of places that don't need it or can be trivially tokenized or locked.* Mostly non-performance adjustments, though the X server does use scmouse or sysmouse.
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Move efirt.ko's source to sys/dev/misc/efirt.