netdev - [PATCH next-queue v2 1/3] Revert "PCI: Make pci_enable

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Date:   Mon,  9 Nov 2020 22:10:17 -0800
From:   Vinicius Costa Gomes <vinicius.gomes@...el.com>
To:     intel-wired-lan@...ts.osuosl.org
Cc:     Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        sasha.neftin@...el.com, andre.guedes@...el.com,
        anthony.l.nguyen@...el.com, linux-pci@...r.kernel.org,
        bhelgaas@...gle.com, netdev@...r.kernel.org
Subject: [PATCH next-queue v2 1/3] Revert "PCI: Make pci_enable_ptm() private"

Make pci_enable_ptm() accessible from the drivers.

Even if PTM still works on the platform I am using without calling
this function, it might be possible that it's not always the case.

Exposing this to the driver enables the driver to use the
'ptm_enabled' field of 'pci_dev' to check if PTM is enabled or not.

This reverts commit ac6c26da29c12fa511c877c273ed5c939dc9e96c.

Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
---
 drivers/pci/pci.h   | 3 ---
 include/linux/pci.h | 7 +++++++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index f86cae9aa1f4..548e93aca55b 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -581,11 +581,8 @@ static inline void pcie_ecrc_get_policy(char *str) { }
 
 #ifdef CONFIG_PCIE_PTM
 void pci_ptm_init(struct pci_dev *dev);
-int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);
 #else
 static inline void pci_ptm_init(struct pci_dev *dev) { }
-static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
-{ return -EINVAL; }
 #endif
 
 struct pci_dev_reset_methods {
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 22207a79762c..18ce0d3eaecc 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1596,6 +1596,13 @@ static inline bool pci_aer_available(void) { return false; }
 
 bool pci_ats_disabled(void);
 
+#ifdef CONFIG_PCIE_PTM
+int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);
+#else
+static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
+{ return -EINVAL; }
+#endif
+
 void pci_cfg_access_lock(struct pci_dev *dev);
 bool pci_cfg_access_trylock(struct pci_dev *dev);
 void pci_cfg_access_unlock(struct pci_dev *dev);
-- 
2.29.0