We don't generally pull in a new version of a driver to fix a bug.
There is a document that describes the SRU process[0].


For this bug, what we would want to do is find the specific commit in the newer 
driver that fixes the bug, then SRU it to the 16.04.03 kernel.

To identify the commit that fixes this, we would need to perform a
"Reverse" kernel bisect[1], which is why I asked for the testing of
various kernel versions in comment #6.

It looks like you tested those kernels per comment #9.  Is it correct
that the 4.5 kernel with  version: 1.0.0 does not have the bug?  If that
is the case, we can bisect between 4.4 and 4.5.


[0] https://wiki.ubuntu.com/StableReleaseUpdates

[1] https://wiki.ubuntu.com/Kernel/KernelBisection

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https://bugs.launchpad.net/bugs/1715368

Title:
  Broadcom NXE controller Cumulus devices ID's are missing in 16.04.03
  'kernel-fixed-upstream'

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Xenial:
  Triaged
Status in linux source package in Zesty:
  Triaged

Bug description:
  Broadcom NXE controller Cumulus devices ID's are missing in 16.04.03.
  CuW B1 device IDs are missing with Ubuntu 16.04.03 inbox bnxt_en 
driver(0.1.24) 

  Below is the modinfo output of Ubuntu 16.04.03 inbox bnxt_en driver.

  root@ubuntu160403:~# modinfo bnxt_en 
  filename: 
/lib/modules/4.4.0-87-generic/kernel/drivers/net/ethernet/broadcom/bnxt/bnxt_en.ko
 
  version: 0.1.24 
  description: Broadcom BCM573xx network driver 
  license: GPL 
  srcversion: 0110469E9118262B301CA46 
  alias: pci:v000014E4d000016D3sv*sd*bc*sc*i* 
  alias: pci:v000014E4d000016CBsv*sd*bc*sc*i* 
  alias: pci:v000014E4d000016D2sv*sd*bc*sc*i* 
  alias: pci:v000014E4d000016D1sv*sd*bc*sc*i* 
  alias: pci:v000014E4d000016CAsv*sd*bc*sc*i* 
  alias: pci:v000014E4d000016C9sv*sd*bc*sc*i* 
  depends: vxlan 
  intree: Y 
  vermagic: 4.4.0-87-generic SMP mod_unload modversions 

  OS Details: 
  root@ubuntu160403:~# cat /etc/issue 
  Ubuntu 16.04.3 LTS \n \l 

  root@ubuntu160403:~# uname -a 
  Linux ubuntu160403 4.4.0-87-generic #110-Ubuntu SMP Tue Jul 18 12:55:35 UTC 
2017 x86_64 x86_64 x86_64 GNU/Linux

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