media change events for polled devices broken with current sdev_evt_send()

[Kay Sievers <kay.sievers@xxxxxxxxxx>]

Hi Jeff,
  a341cd0f (SCSI: add asynchronous event notification API)
introduces an event filter like:
  +       if (!test_bit(evt->evt_type, sdev->supported_events)) {
  +               kfree(evt);
  +               return;
  +       }

which breaks:
  285e9670 (sr,sd: send media state change modification events)

Why are events sent through sdev_evt_send() filtered? In which case does
code send an event which we don't want to deliver?


Side note: introduced with a341cd0f is the sysfs file:
"evt_media_change", which has a store() method, but has the permission
0444. It should either have no store() method assigned, by introducing
something like DECLARE_EVT_RO(), or the file permission should be
changed to 0644.

Thanks,
Kay

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