alf_queue: checkpatch cleanups before upstream submission

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
alf_queue: add comment explaining preempt safety

The Multi (Producer or Consumer) variant can have multiple CPUs
enq or deq concurrently, but cannot allow the same CPU preempting
itself, due to how the tail is updated, this can result in a
soft lock-up.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
qmempool: checkpatch cleanup before upstream submission

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>