== SRU Justification ==
When running Oneiric on a Chief River (Ivy Bridge/Panther Point) the following messages are printed to dmesg which are harmless but could cause user concern. It's been request we cherry-pick 3 upstream patches to eliminate these messages.
"[ 1.037314] xhci_hcd 0000:00:14.0: Failed to enable MSI-X"
"[ 1.037314] WARN: short transfer on control ep"
== Fix ==
The following upstream patches, remove these warnings:
commit 3b9783b277e66731891ab42eeaacebbdcdd6e629
Author: Sarah Sharp <email address hidden>
Date: Thu Dec 22 15:02:13 2011 -0800
xhci: Remove warnings about MSI and MSI-X capabilities.
commit 2a9227a5eeaeb3f91e3a72ceea4fa59016ca5d20
Author: Sarah Sharp <email address hidden>
Date: Tue Oct 25 13:55:30 2011 +0200
xhci: Remove scary warnings about transfer issues.
commit d23336329fa4c157ed6256d4279a73b87486a1b6
Author: Sarah Sharp <email address hidden>
Date: Mon Jun 6 00:53:47 2011 -0700
xhci: Don't warn about zeroed bMaxBurst descriptor field.
== Impact ==
There should be minimal to no risk of regression as the patches are merely lowering the log level from an error message to debug message or removing the message completely.
== Test Case ==
Boot with an unpatched kernel and confirm you see something similar to "xhci_hcd 0000:00:14.0: Failed to enable MSI-X" on boot and possibly see the "WARN: short transfer on control ep" when conducting normal operations on a USB device.
== SRU Justification ==
When running Oneiric on a Chief River (Ivy Bridge/Panther Point) the following messages are printed to dmesg which are harmless but could cause user concern. It's been request we cherry-pick 3 upstream patches to eliminate these messages.
"[ 1.037314] xhci_hcd 0000:00:14.0: Failed to enable MSI-X"
"[ 1.037314] WARN: short transfer on control ep"
== Fix ==
The following upstream patches, remove these warnings:
commit 3b9783b277e6673 1891ab42eeaaceb bdcdd6e629
Author: Sarah Sharp <email address hidden>
Date: Thu Dec 22 15:02:13 2011 -0800
xhci: Remove warnings about MSI and MSI-X capabilities.
commit 2a9227a5eeaeb3f 91e3a72ceea4fa5 9016ca5d20
Author: Sarah Sharp <email address hidden>
Date: Tue Oct 25 13:55:30 2011 +0200
xhci: Remove scary warnings about transfer issues.
commit d23336329fa4c15 7ed6256d4279a73 b87486a1b6
Author: Sarah Sharp <email address hidden>
Date: Mon Jun 6 00:53:47 2011 -0700
xhci: Don't warn about zeroed bMaxBurst descriptor field.
== Impact ==
There should be minimal to no risk of regression as the patches are merely lowering the log level from an error message to debug message or removing the message completely.
== Test Case ==
Boot with an unpatched kernel and confirm you see something similar to "xhci_hcd 0000:00:14.0: Failed to enable MSI-X" on boot and possibly see the "WARN: short transfer on control ep" when conducting normal operations on a USB device.