Re: copy_from_user, copy_to_user in kernel

[John W. Linville]

On Fri, Aug 12, 2005 at 11:16:23AM -0700, KrnlUsr wrote:

> have the core routines copy processed data back to
> kernel thread or user space with copy_to_user. or do i
> have to have some check saying if called from ioctl
> call copy_to_user otherwise call memcpy?

Why wouldn't you just let the core routines deal only w/ kernel memory
and only have your ioctl handler deal w/ copy_{to,from}_user?

John
-- 
John W. Linville
linville@xxxxxxxxxxxxx
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