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SubjectRe: [PATCH v4 2/2] efi: an sysfs interface for user to update efi firmware
On Fri, 17 Apr, at 03:49:24PM, Greg KH wrote:
> Not really, the kernel namespace is what matters at that point in time.
> And maybe it does matter, I haven't thought through all of the issues.
> But passing a path from userspace, to the kernel, to have the kernel
> turn around again and use that path is full of nasty consequences at
> times due to namespaces, let's avoid all of that please.

Oh crap. The namespace issue is a good point and not something I'd
thought of at all.

At this point, I think we've really run out of objections to Andy's
suggestion of implementing this as a misc device, right?

The concern I had about userspace tooling can partly be addressed by
including the source in tools/ in the kernel tree. So provided we do
that, I'm happy enough to see this implemented as a misc device because
the other options we've explored just haven't panned out.


Matt Fleming, Intel Open Source Technology Center

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