From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 9 Oct 2019 21:27:30 +0000 (-0500)
Subject: PCI/ATS: Remove unused PRI and PASID stubs
X-Git-Tag: v5.5-rc1~55^2~17^2~8
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c6e9aefbf9db818d60818aa5540d78c1da289aae;p=linux.git

PCI/ATS: Remove unused PRI and PASID stubs

The following functions are only used by amd_iommu.c and intel-iommu.c
(when CONFIG_INTEL_IOMMU_SVM is enabled).  CONFIG_PCI_PRI and
CONFIG_PCI_PASID are always defined in those cases, so there's no need for
the stubs.

  pci_enable_pri()
  pci_disable_pri()
  pci_reset_pri()
  pci_prg_resp_pasid_required()
  pci_enable_pasid()
  pci_disable_pasid()

Remove the unused stubs.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
---

diff --git a/include/linux/pci-ats.h b/include/linux/pci-ats.h
index 67de3a9499bb..963c11f7c56b 100644
--- a/include/linux/pci-ats.h
+++ b/include/linux/pci-ats.h
@@ -27,14 +27,7 @@ void pci_restore_pri_state(struct pci_dev *pdev);
 int pci_reset_pri(struct pci_dev *pdev);
 int pci_prg_resp_pasid_required(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; }
-static inline int pci_prg_resp_pasid_required(struct pci_dev *pdev)
-{ return 0; }
 #endif /* CONFIG_PCI_PRI */
 
 #ifdef CONFIG_PCI_PASID
@@ -44,9 +37,6 @@ 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);
 #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; }