Fix compilation of dahdi-dkms with 3.19 HWE kernel

[Stefan Bader]

SRU Justification:

Impact:
The dahdi-linux package needs further compatibility code to compile with the latest HWE kernel (3.19 from Vivid).

Fix:
Backported relevant patches/code from the Vivid package.

Testcase:
DKMS build for a 3.19 kernel in the Trusty user-space fails without the changes. After those changes the compile succeeds for 3.13 and 3.19 kernels.

[Stefan Bader (smb)]

#dkms status
dahdi, 2.5.0.1+dfsg-1ubuntu4~14.04.4, 3.13.0-65-generic, x86_64: installed (WARNING! Diff between built and installed module!)
dahdi, 2.5.0.1+dfsg-1ubuntu4~14.04.4, 3.19.0-30-generic, x86_64: installed (WARNING! Diff between built and installed module!)

sudo modprobe dahdi_dummy succeeds.

[Chris J Arges (arges)]

The porposed changes have been sponsored.

[Chris J Arges (arges)]

Hello Stefan, or anyone else affected,

Accepted dahdi-linux into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/dahdi-linux/1:2.5.0.1+dfsg-1ubuntu4~14.04.4 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Stefan Bader (smb)]

Tested in a freshly set up VM:
1. add dahdi-dkms from updates (compiles ok for 3.13)
2. add linux-generic-lts-vivid (dahdi dkms build fails for 3.19)
3. enable proposed for univere and dist-upgrade (dahdi dkms from proposed is built for 3.13 and 3.19)

[Launchpad Janitor (janitor)]

This bug was fixed in the package dahdi-linux - 1:2.5.0.1+dfsg-1ubuntu4~14.04.4

---------------
dahdi-linux (1:2.5.0.1+dfsg-1ubuntu4~14.04.4) trusty; urgency=low

  * d/p/kernel-v3-17-compat.patch, d/p/kernel-v3-18-compat.patch, and
    d/p/kernel-v3-19-compat.patch:
    Backport compat code to allow compilation of latest HWE (3.19) kernel
    in Trusty/14.04 (LP: #1499436).

 -- Stefan Bader <email address hidden> Tue, 29 Sep 2015 09:57:46 -0500

[Chris J Arges (arges)]

The verification of the Stable Release Update for dahdi-linux has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.