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61e015ac5b
The swap_pci_ref function is used by the IOMMU API code for swapping pci device pointers, while determining the iommu group for the device. Currently this function was being implemented for different IOMMU drivers. This patch moves the function to a new file, drivers/iommu/pci.h so that the implementation can be shared across various IOMMU drivers. Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
30 lines
994 B
C
30 lines
994 B
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (C) 2013 Red Hat, Inc.
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* Copyright (C) 2013 Freescale Semiconductor, Inc.
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*
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*/
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#ifndef __IOMMU_PCI_H
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#define __IOMMU_PCI_H
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/* Helper function for swapping pci device reference */
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static inline void swap_pci_ref(struct pci_dev **from, struct pci_dev *to)
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{
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pci_dev_put(*from);
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*from = to;
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}
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#endif /* __IOMMU_PCI_H */
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