[PATCH 0/1][SRU][Bionic] Remove false errors "AE_NOT_FOUND, Evaluating _PRS"

[Alex Hung]

BugLink: https://bugs.launchpad.net/bugs/1773295

[Impact]

  Kernel generates false errors "ACPI Exception: AE_NOT_FOUND, Evaluating _PRS"
  as new platforms do not have _PRS control method when OS is not allowed to 
  modify hardware registers for routing table.

[Fix]

  The patch disables the error messages by default for users who do not need 
  to debug _PRS methods.

  The patches are included in upstream and are cherry-picked from Linus's repo.

[Regression potential]

  No regression for older systems as they have _PRS methods, and new systems 
  will see pci_link driver loaded but there should be no functional changes.

Alex Hung (1):
  ACPI / PCI: pci_link: Allow the absence of _PRS and change log level

 drivers/acpi/pci_link.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.17.0