Re: RFC: changes to microcode update driver.

[Dave Jones <davej@redhat.com>]

On Tue, Oct 07, 2003 at 03:58:00AM -0700, Tigran Aivazian wrote:
 > Hi guys,
 > 
 > It's been a long time that I was going to send to Linux the patch with the
 > following changes, but the birth of my first child intervened and caused
 > delays (though can't call them "unexpected" :)

Congrats 8-)

 > 1. Remove ->read() method for /dev/cpu/microcode device node and do not
 > hold a copy of applied microcode chunks in kernel memory. In the days when
 > we had a regular devfs file with a non-zero size this had at least some
 > potential use but now this feature is almost useless and removing it would
 > allow a lot of code cleanup and simplification.
 > 
 > 2. remove MICROCODE_IOCFREE ioctl for freeing the copy of held microcode
 > (because there won't be such copy, see 1.)

Assuming that it can be done without the old tools breaking, sounds good
to me.  How will microcode_ctl -i react if you remove the ioctl ?
Folks _will_ upgrade kernels without updating userspace.

		Dave

-- 
 Dave Jones     http://www.codemonkey.org.uk