On Tue, Apr 24, 2012 at 02:32:41PM +0200, Jean Delvare wrote: > Please keep in mind that support for I2C_M_NOSTART at the bus driver > level is optional. This means that device drivers are encouraged to not > rely on it unconditionally. Originally the flag was meant to workaround Yeah, for regmap we certainly have a fallback to kmalloc() a buffer as needed in there already. Like I say it's just an optimisation. > If you want to do scatter-gather for I2C messages, I understand the > benefit and I have no objection, and I agree that I2C_M_NOSTART lets > you do that, but then: > * We should allocate a new functionality flag for it. > * We should update the documentation to reflect the two use cases. That sounds like a good plan. I'll try to get round to it if nobody beats me to it.
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