Re: [PATCH 00/18] firmware: moving drivers to request_firmware()

From: David Woodhouse
Date: Thu Jun 05 2008 - 18:16:33 EST


On Thu, 2008-06-05 at 17:33 -0400, Jeff Garzik wrote:
> Right. And now you are creating Yet Another Format, rather than
> rendering the firmware back into the preferred format: binary blob.

At least it's simpler than the various formats we have at the moment.

> _If_ you are changing form of current in-tree firmwares at all, there is
> no excuse not use direct binary blob -- the least common denominator for
> all relevant operations.

There's plenty of excuses. The fact that we don't have any binary blobs
in the tree is a fairly big hint -- they're not easily processed by the
tools we use (like 'diff').

I'm keen to avoid unnecessary controversy while I convert drivers to
request_firmware(). I don't want to convert the existing ASCII
representations into raw binary blobs right now, because it's not my
primary focus and I don't care enough about it to fight that battle.

If you want to follow up with a patch to remove .ihex files and replace
them with raw binaries -- or better still start posting patches which
convert the drivers I've yet to get to, and just put raw binary blobs
into firmware/ instead of .ihex as I would, then please go ahead. But
please don't be offended if I don't put them in my firmware-2.6.git tree
because I think that'll make it less likely to get merged.

> Storing the firmware in .ihex is just as bad as storing the firmware in
> source code -- it's a pointless wrapper that makes firmware verification
> and updates far more difficult than they should be.

But still a lot easier than before I did it. One thing at a time, Jeff.

--
dwmw2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/