On Mon, Dec 05, 2011 at 09:18:48AM -0800, Arnd Bergmann wrote: > On Friday 02 December 2011, Sumit Semwal wrote: > > This is the first step in defining a dma buffer sharing mechanism. > [...] > > > + return dmabuf; > > +} > > +EXPORT_SYMBOL(dma_buf_export); > > I agree with Konrad, this should definitely be EXPORT_SYMBOL_GPL, > because it's really a low-level function that I would expect > to get used by in-kernel subsystems providing the feature to > users and having back-end drivers, but it's not the kind of thing > we want out-of-tree drivers to mess with. Is this really necessary? If this is intended to be a lowest-common-denominator between many drivers to allow buffer sharing, it seems like it needs to be able to be usable by all drivers. If the interface is not accessible then I fear many drivers will be forced to continue to roll their own buffer sharing mechanisms (which is exactly what we're trying to avoid here, needless to say). - Robert -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
