Thank you for providing a patch, and making Ubuntu better.
Can you provide some information on the status of the patch with regards
to getting it merged upstream? Has it been sent upstream, what sort of
feedback has it received, is it getting applied to a subsystem
maintainer's tree, etc?
People affected by this bug are probably wondering why the kernel team
doesn't just apply the patch and fix it. The reason is that the kernel
team is reluctant (not opposed) to apply any patch to a stable kernel
that is not from upstream. Applying patches that don't come from
upstream add greatly to the support of the kernel as other upstream
patches may touch the same area as the non-upstream patch and may
prevent them from applying cleanly.
To submit your patch, send your patch with the detailed
description/changelog and your Signoff (ending with Signed-off-by: your
name <email>), to the emails listed from ./scripts/get_maintainer.pl
drivers/SUBSYSTEM-DETAILS (the get_maintainer.pl is from the kernel
sources). Once you have sent the patch upstream and it's accepted,
please drop a note here so that we can cherry-pick/include the patch
into Ubuntu kernel.
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Tags added: kernel-da-key
** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
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https://bugs.launchpad.net/bugs/1779173
Title:
Dell D6000 dock lacks multicast Ethernet functionality
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Triaged
Bug description:
Dell D6000 exposes a CDC_NCM device for Ethernet traffic. However,
multicast Ethernet traffic is not processed making IPv6 not
functional. Other services, like mDNS used for LAN service discovery
are also hindered.
The actual reason is that CDC_NCM driver was not processing requests
to filter (admit) multicast traffic. I provide two patches to the
linux kernel that admit all Ethernet multicast traffic whenever a
multicast group is being joined.
The solution is not optimal, as it makes the system receive more
traffic than that strictly needed, but otherwise this only happens
when the computer is connected to a dock and thus is running on AC
power. I believe it is not worth the hassle to join only the requested
groups. This is the same that is done in the CDN_ETHER driver.
To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1779173/+subscriptions
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