Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel

Conflicts:

	arch/arm/mach-at91/gpio.c

1 files changed, 39 insertions, 9 deletions

diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index aac7006949f..d0c97368586 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -108,6 +108,34 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
 }
 #endif  /*  0  */
 
+
+static void set_device_error_reporting(struct pci_dev *dev, void *data)
+{
+        bool enable = *((bool *)data);
+
+        if (dev->pcie_type != PCIE_RC_PORT &&
+            dev->pcie_type != PCIE_SW_UPSTREAM_PORT &&
+            dev->pcie_type != PCIE_SW_DOWNSTREAM_PORT)
+                return;
+
+        if (enable)
+                pci_enable_pcie_error_reporting(dev);
+        else
+                pci_disable_pcie_error_reporting(dev);
+}
+
+/**
+ * set_downstream_devices_error_reporting - enable/disable the error reporting  bits on the root port and its downstream ports.
+ * @dev: pointer to root port's pci_dev data structure
+ * @enable: true = enable error reporting, false = disable error reporting.
+ */
+static void set_downstream_devices_error_reporting(struct pci_dev *dev,
+                                                   bool enable)
+{
+        set_device_error_reporting(dev, &enable);
+        pci_walk_bus(dev->subordinate, set_device_error_reporting, &enable);
+}
+
 static int find_device_iter(struct device *device, void *data)
 {
         struct pci_dev *dev;
@@ -525,15 +553,11 @@ void aer_enable_rootport(struct aer_rpc *rpc)
         pci_read_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, &reg32);
         pci_write_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, reg32);
 
-        /* Enable Root Port device reporting error itself */
-        pci_read_config_word(pdev, pos+PCI_EXP_DEVCTL, &reg16);
-        reg16 = reg16 |
-                PCI_EXP_DEVCTL_CERE |
-                PCI_EXP_DEVCTL_NFERE |
-                PCI_EXP_DEVCTL_FERE |
-                PCI_EXP_DEVCTL_URRE;
-        pci_write_config_word(pdev, pos+PCI_EXP_DEVCTL,
-                reg16);
+        /*
+         * Enable error reporting for the root port device and downstream port
+         * devices.
+         */
+        set_downstream_devices_error_reporting(pdev, true);
 
         /* Enable Root Port's interrupt in response to error messages */
         pci_write_config_dword(pdev,
@@ -553,6 +577,12 @@ static void disable_root_aer(struct aer_rpc *rpc)
         u32 reg32;
         int pos;
 
+        /*
+         * Disable error reporting for the root port device and downstream port
+         * devices.
+         */
+        set_downstream_devices_error_reporting(pdev, false);
+
         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
         /* Disable Root's interrupt in response to error messages */
         pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0);