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

AceLan Kao acelan.kao at canonical.com
Fri Aug 24 08:53:02 UTC 2018

BugLink: https://bugs.launchpad.net/bugs/1788567

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.

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(-)


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