Re: [PATCH] arch/x86: reset MXCSR to default in kernel_fpu_begin()

[Petteri Aimonen]

Hi,

> Is it correct to assume the stuff checked differs from test to test
> and done in user-space.
> 
> > undo_evil_state();
> 
> Is it correct to assume undoing evil differs from test to test
> and done in user-space, provide it can be done from userspace.

Yes, currently the test works like:

do_test_setup();
read_from_debugfs_file();
check_results();

and the middle step stays the same. But of course in general case there 
could be argument passing etc, even though the test for this issue 
doesn't need them.

Myself I don't see the problem with just adding a file under debugfs and 
bind to its read.

--
Petteri