[PATCH 0/1]System takes long time to read device via Thunderbolt 3 port

Stefan Bader stefan.bader at canonical.com
Fri Aug 24 07:46:15 UTC 2018

On 23.08.2018 10:01, AceLan Kao wrote:
> BugLink: https://bugs.launchpad.net/bugs/1788567
> [Impact]
> On Dell XPS 13 with Dell TB16 docking station, sometimes the devices on
> docking station do not show up or takes couple minutes to be recognized.
> [Fix]
> This issue doesn't exist in 4.16 vanilla kernel, and after bisected the
> kernel and found below commit fixes this issue.
>    cc5db3150e87 net: qcom/emac: Use proper free methods during TX
> Applied this commit on top of Bionic 4.15 kernel and confirmed it works.
> [Regression Potential]
> Low, this commit is more like a patch fixes a bug which has been
> introduced since the driver was created. It aligns the dma_map and
> dma_unmap methods which might cause issues in some cases.
> Hemanth Puranik (1):
>   net: qcom/emac: Use proper free methods during TX
>  drivers/net/ethernet/qualcomm/emac/emac-mac.c | 23 +++++++++++--------
>  1 file changed, 14 insertions(+), 9 deletions(-)

The way you submitted this, it looks to be intended for Cosmic/Unstable, even
the bug report does not have the Bionic task added which I take from the last
sentence of the Fix section is where this actually should go.
But its hard to notice and this is why nobody has looked at the patch and you
have not inquired either. Please re-submit again (with proper [SRU Bionic] in
the subject and at least a nomination for bionic added to the bug report) for
the next SRU cycle.


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