Re: csum_partial_copy_fromuser

Alan Cox (
Thu, 30 Jan 1997 00:38:33 +0000 (GMT)

> The "implementations" for csum_partial_copy_fromuser in 2.1.x are all
> currently just #define's over to csum_partial_copy. This is bad since
> userspace can pass bogus pointers and no exception handling is done
> resulting in an Oops. (I verified this with a small test program.)

Yep. If someone cares to add the exceptions to it I'll add the patches.
I've also had email from someone who claims to have an even fast
csum routine.