This patch introduced three helper functions to hide direct
device flag operation.
void pci_set_dev_assigned(struct pci_dev *pdev);
void pci_set_dev_deassigned(struct pci_dev *pdev);
bool pci_is_dev_assigned(struct pci_dev *pdev);
Signed-off-by: Ethan Zhao <ethan.zhao@xxxxxxxxxx>
---
v2: simplify unnecessory ternary operation in function pci_is_dev_assigned();
include/linux/pci.h | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index aab57b4..5f6f8fa 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1129,6 +1129,19 @@ resource_size_t pcibios_window_alignment(struct pci_bus *bus,
int pci_set_vga_state(struct pci_dev *pdev, bool decode,
unsigned int command_bits, u32 flags);
+/* helper functions for operation of device flag */
+static inline void pci_set_dev_assigned(struct pci_dev *pdev)
+{
+ pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
+}
+static inline void pci_set_dev_deassigned(struct pci_dev *pdev)
+{
+ pdev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
+}
+static inline bool pci_is_dev_assigned(struct pci_dev *pdev)
+{
+ return pdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED;
+}
/* kmem_cache style wrapper around pci_alloc_consistent() */
#include <linux/pci-dma.h>
--
1.7.1
--
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