Johannes Berg wrote:
+ /* + * Configure the device's RX filter.
[...]
+ * Must be atomic due to running under the tx lock.
This is slightly freaky for zd1211rw and probably other USB drivers. In most cases we can't act upon any of those filter flag changes in atomic context.
We could defer work like we do for multicast lists, but then the driver would be lying in that it would return from configure_filter saying that it has honoured some flags without actually having done so (yet).
Will that be a problem? I'm thinking maybe not, since the flags only affect RX and we can't determine which frames will be in the air at any time. [as opposed to such atomicity problems that relate to TX, we can just disable TX until the work has completed]
+ * This callback is must be implemented. + */
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