On Wednesday 13 April 2011, John Calixto wrote: > > Since the code is limited to ACMD and cannot do arbitrary commands, it's actually > > not possible to use this for the passthrough scenario, so you should not mention > > it in the changelog. > > > > I would also still advocate something more high-level here because it's limited > > to a single use case. If you make the ioctl interface do the security commands > > directly, you would not need to rely on CAP_SYS_RAWIO. > > > > I'm happy to remove the text about passthrough from the changelog, but > it is a valid use for this ioctl. I agree that ACMD by itself is not > sufficient for full passthrough, but this patch is a starting point for > anyone wanting to implement full CMD passthrough. > > There are also several ACMD opcodes that are not related to security, > but to functionality like requesting to change the signalling voltage, > setting bus width, setting pre-erase block count, etc... I think those > commands are what caused others to request some kind of capability > restriction. > Ok, I see. In v6, it seems you have implemented the full CMD passthrough, if I read it correctly. Is there anything still missing? Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
