On Wednesday 04 February 2015 20:04:21 Jassi Brar wrote: > > > Using the bits of the pointer as the message instead of pointing > > to the message feels like an abuse of the API. > > > I can see your POV. > Now consider a client, like mine, that sends a u32 value as the data. > But unlike me, the client uses the mailbox api in 'async' mode i.e, > register a callback function, submit a 32bit message and move on. It > is perfectly doable, but doesn't kalloc'ing a u32 for each submission, > seem overkill? That could easily be done by dereferencing the message data in the function that queues the asynchronous message: instead of queuing the pointer, you queue the data in the driver. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html