Messages in this thread | | | Date | Mon, 11 Mar 2002 17:41:09 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [patch] My AMD IDE driver, v2.7 |
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On Mon, 11 Mar 2002, Jeff Garzik wrote: > > Your first question is really philosophical. I think that people should > -not- be able to send undocumented commands through the interface... > and in this area IMO it pays to be paranoid.
What if the command is perfectly documented, but only for a certain class of IBM disks?
Are you going to create a table of every disk out there, along with every command it can do?
Remember: the kernel driver is a driver for the host controller, yet the command is for the _disk_. It makes no sense to check for disk commands in a host controller driver - they are two different things.
It's like checking for icmp messages in a network driver. Do you seriously propose having network drivers check icmp messages for command validity?
Linus
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