drivers/iommu/pci.h

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License, version 2, as
   4  * published by the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful,
   7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9  * GNU General Public License for more details.
  10  *
  11  * You should have received a copy of the GNU General Public License
  12  * along with this program; if not, write to the Free Software
  13  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  14  *
  15  * Copyright (C) 2013 Red Hat, Inc.
  16  * Copyright (C) 2013 Freescale Semiconductor, Inc.
  17  *
  18  */
  19 #ifndef __IOMMU_PCI_H
  20 #define __IOMMU_PCI_H
  21
  22 /* Helper function for swapping pci device reference */
  23 static inline void swap_pci_ref(struct pci_dev **from, struct pci_dev *to)
  24 {
  25         pci_dev_put(*from);
  26         *from = to;
  27 }
  28
  29 #endif  /* __IOMMU_PCI_H */