Bug#782442: USB3 regression: External hard disk does not work anymore

[Ralf Jung <post@ralfj.de>]

Hi again,

I now tested various upstream kernels and was able to reproduce the
issue with upstream v3.16, but *not* with upstream v3.15 or v3.14.

I will try some more times and then report this upstream. It seems to me
that the issue is introduced by a patch that Debian already shipped with
v3.14, but that only landed upstream two releases later. Is there a good
way to use this information to narrow down which patch it could have been?

Kind regards,
Ralf