[PATCH] xen/pciback: fix cast to restricted pci_ers_result_t and pci_power_t

[Min-Hua Chen <minhuadotchen@xxxxxxxxx>]

This patch fix the following sparse warning by applying
__force cast to pci_ers_result_t and pci_power_t.

drivers/xen/xen-pciback/pci_stub.c:760:16: sparse: warning: cast to restricted 
pci_ers_result_t
drivers/xen/xen-pciback/conf_space_capability.c:125:22: sparse: warning: cast 
to restricted pci_power_t

No functional changes intended.

Signed-off-by: Min-Hua Chen <minhuadotchen@xxxxxxxxx>
---
 drivers/xen/xen-pciback/conf_space_capability.c | 2 +-
 drivers/xen/xen-pciback/pci_stub.c              | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/xen-pciback/conf_space_capability.c 
b/drivers/xen/xen-pciback/conf_space_capability.c
index 1948a9700c8f..cf568e899ee2 100644
--- a/drivers/xen/xen-pciback/conf_space_capability.c
+++ b/drivers/xen/xen-pciback/conf_space_capability.c
@@ -122,7 +122,7 @@ static int pm_ctrl_write(struct pci_dev *dev, int offset, 
u16 new_value,
        if (err)
                goto out;
 
-       new_state = (pci_power_t)(new_value & PCI_PM_CTRL_STATE_MASK);
+       new_state = (__force pci_power_t)(new_value & PCI_PM_CTRL_STATE_MASK);
 
        new_value &= PM_OK_BITS;
        if ((old_value & PM_OK_BITS) != new_value) {
diff --git a/drivers/xen/xen-pciback/pci_stub.c 
b/drivers/xen/xen-pciback/pci_stub.c
index 4faebbb84999..368738312696 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -757,7 +757,7 @@ static pci_ers_result_t common_process(struct 
pcistub_device *psdev,
        }
        clear_bit(_PCIB_op_pending, (unsigned long *)&pdev->flags);
 
-       res = (pci_ers_result_t)aer_op->err;
+       res = (__force pci_ers_result_t)aer_op->err;
        return res;
 }
 
-- 
2.43.0