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linux-next/include/linux/pci-ats.h
Kuppuswamy Sathyanarayanan fff42928ad PCI/ATS: Add inline to pci_prg_resp_pasid_required()
Fix unused function warning when compiled with CONFIG_PCI_PASID
disabled.

Fixes: e5567f5f67 ("PCI/ATS: Add pci_prg_resp_pasid_required() interface.")
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-02-28 11:09:29 +01:00

78 lines
1.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef LINUX_PCI_ATS_H
#define LINUX_PCI_ATS_H
#include <linux/pci.h>
#ifdef CONFIG_PCI_PRI
int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
void pci_disable_pri(struct pci_dev *pdev);
void pci_restore_pri_state(struct pci_dev *pdev);
int pci_reset_pri(struct pci_dev *pdev);
#else /* CONFIG_PCI_PRI */
static inline int pci_enable_pri(struct pci_dev *pdev, u32 reqs)
{
return -ENODEV;
}
static inline void pci_disable_pri(struct pci_dev *pdev)
{
}
static inline void pci_restore_pri_state(struct pci_dev *pdev)
{
}
static inline int pci_reset_pri(struct pci_dev *pdev)
{
return -ENODEV;
}
#endif /* CONFIG_PCI_PRI */
#ifdef CONFIG_PCI_PASID
int pci_enable_pasid(struct pci_dev *pdev, int features);
void pci_disable_pasid(struct pci_dev *pdev);
void pci_restore_pasid_state(struct pci_dev *pdev);
int pci_pasid_features(struct pci_dev *pdev);
int pci_max_pasids(struct pci_dev *pdev);
int pci_prg_resp_pasid_required(struct pci_dev *pdev);
#else /* CONFIG_PCI_PASID */
static inline int pci_enable_pasid(struct pci_dev *pdev, int features)
{
return -EINVAL;
}
static inline void pci_disable_pasid(struct pci_dev *pdev)
{
}
static inline void pci_restore_pasid_state(struct pci_dev *pdev)
{
}
static inline int pci_pasid_features(struct pci_dev *pdev)
{
return -EINVAL;
}
static inline int pci_max_pasids(struct pci_dev *pdev)
{
return -EINVAL;
}
static inline int pci_prg_resp_pasid_required(struct pci_dev *pdev)
{
return 0;
}
#endif /* CONFIG_PCI_PASID */
#endif /* LINUX_PCI_ATS_H*/