PCI: define inline for test of channel error state

Add very simple routine to indicate the pci channel error state.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index df875626b71a..79856b3c714a 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -181,6 +181,11 @@ struct pci_dev {
 #define to_pci_dev(n) container_of(n, struct pci_dev, dev)
 #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
 
+static inline int pci_channel_offline(struct pci_dev *pdev)
+{
+        return (pdev->error_state != pci_channel_io_normal);
+}
+
 static inline struct pci_cap_saved_state *pci_find_saved_cap(
         struct pci_dev *pci_dev,char cap)
 {