diff --git a/Documentation/PCI/pcieaer-howto.rst b/Documentation/PCI/pcieaer-howto.rst
index 0b36b9ebfa4b4296ec1a4fc55ac9b443a7bdea3c..c98a229ea9f552413fd42754c541b0876ab0befd 100644
--- a/Documentation/PCI/pcieaer-howto.rst
+++ b/Documentation/PCI/pcieaer-howto.rst
@@ -96,8 +96,8 @@ Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
 Developer Guide
 ===============
 
-To enable AER aware support requires a software driver to configure
-the AER capability structure within its device and to provide callbacks.
+To enable AER aware support requires a software driver to provide
+callbacks.
 
 To support AER better, developers need understand how AER does work
 firstly.
@@ -135,15 +135,6 @@ hierarchy and links. These errors do not include any device specific
 errors because device specific errors will still get sent directly to
 the device driver.
 
-Configure the AER capability structure
---------------------------------------
-
-AER aware drivers of PCI Express component need change the device
-control registers to enable AER. They also could change AER registers,
-including mask and severity registers. Helper function
-pci_enable_pcie_error_reporting could be used to enable AER. See
-section 3.3.
-
 Provide callbacks
 -----------------
 
@@ -212,31 +203,6 @@ to reset the link. If error_detected returns PCI_ERS_RESULT_CAN_RECOVER
 and reset_link returns PCI_ERS_RESULT_RECOVERED, the error handling goes
 to mmio_enabled.
 
-helper functions
-----------------
-::
-
-  int pci_enable_pcie_error_reporting(struct pci_dev *dev);
-
-pci_enable_pcie_error_reporting enables the device to send error
-messages to root port when an error is detected. Note that devices
-don't enable the error reporting by default, so device drivers need
-call this function to enable it.
-
-::
-
-  int pci_disable_pcie_error_reporting(struct pci_dev *dev);
-
-pci_disable_pcie_error_reporting disables the device to send error
-messages to root port when an error is detected.
-
-::
-
-  int pci_aer_clear_nonfatal_status(struct pci_dev *dev);`
-
-pci_aer_clear_nonfatal_status clears non-fatal errors in the uncorrectable
-error status register.
-
 Frequent Asked Questions
 ------------------------
 
@@ -257,24 +223,6 @@ A:
   Fatal error recovery will fail if the errors are reported by the
   upstream ports who are attached by the service driver.
 
-Q:
-  How does this infrastructure deal with driver that is not PCI
-  Express aware?
-
-A:
-  This infrastructure calls the error callback functions of the
-  driver when an error happens. But if the driver is not aware of
-  PCI Express, the device might not report its own errors to root
-  port.
-
-Q:
-  What modifications will that driver need to make it compatible
-  with the PCI Express AER Root driver?
-
-A:
-  It could call the helper functions to enable AER in devices and
-  cleanup uncorrectable status register. Pls. refer to section 3.3.
-
 
 Software error injection
 ========================