On Jun 8, 2010, at 2:45 PM, Julien Cristau wrote:
[ ... ]
I'd like fix this with a patch to X upstream, so that the change
doesn't
have to be maintained as part of the Chromium OS sources. For a
first
cut, I can think of three obvious approaches:
* Change xorg-server to simply drop the calls to get the vendor and
device names.
* A build or configure option in libpciaccess that disables the
library
routines (i.e. forces them to return NULL in all cases).
Can't you already configure libpciaccess with
--with-pciids-path=/nonexistent?
Yes, solves the performance issue; I'd already considered this.
However,
it means we have to build Chromium OS with X deliberately sabotaged,
and so we have to maintain a local change (with comments explaining
why) to make sure the images stay sabotaged. It's exactly this kind
of maintenance hazard I'd like to avoid.
Thanks!
* A runtime option to the X server that allows specifying the path
to
the "pci.ids.gz" or "pci.ids" file. Chromium OS could specify /
dev/null
to get the desired time savings. (This would mean touching both
xorg-server and libpciaccess).
I'd like advice/opinions on which of these might be the most eagerly
embraced (or at any rate, least vigorously opposed :-) ), or whether
there's a better idea I've overlooked.
Making these functions faster would seem like the best option, if at
all
possible...
Cheers,
Julien
-- jrb
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