[PATCH V4 3/7] PCI: Hide pci_reset_bridge_secondary_bus() from drivers

Sinan Kaya
2018-06-28T19:31:01Z

Rename pci_reset_bridge_secondary_bus() to pci_bridge_secondary_bus_reset()
and move the declartation from linux/pci.h to drivers/pci.h to be used
internally in PCI directory only.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
drivers/pci/hotplug/pciehp_hpc.c | 2 +-
drivers/pci/pci.c | 11 +++++------
drivers/pci/pci.h | 1 +
drivers/pci/pcie/aer.c | 2 +-
drivers/pci/pcie/err.c | 2 +-
include/linux/pci.h | 1 -
6 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index bbaa211..8dae232 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -746,7 +746,7 @@ int pciehp_reset_slot(struct slot *slot, int probe)
if (pciehp_poll_mode)
del_timer_sync(&ctrl->poll_timer);

- rc = pci_reset_bridge_secondary_bus(ctrl->pcie->port);
+ rc = pci_bridge_secondary_bus_reset(ctrl->pcie->port);

pcie_capability_write_word(pdev, PCI_EXP_SLTSTA, stat_mask);
pcie_write_cmd_nowait(ctrl, ctrl_mask, ctrl_mask);
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 98d1490..236220c 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4224,19 +4224,18 @@ void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
}

/**
- * pci_reset_bridge_secondary_bus - Reset the secondary bus on a PCI bridge.
+ * pci_bridge_secondary_bus_reset - Reset the secondary bus on a PCI bridge.
* @dev: Bridge device
*
* Use the bridge control register to assert reset on the secondary bus.
* Devices on the secondary bus are left in power-on state.
*/
-int pci_reset_bridge_secondary_bus(struct pci_dev *dev)
+int pci_bridge_secondary_bus_reset(struct pci_dev *dev)
{
pcibios_reset_secondary_bus(dev);

return pci_dev_wait(dev, "bus reset", PCIE_RESET_READY_POLL_MS);
}
-EXPORT_SYMBOL_GPL(pci_reset_bridge_secondary_bus);

static int pci_parent_bus_reset(struct pci_dev *dev, int probe)
{
@@ -4253,7 +4252,7 @@ static int pci_parent_bus_reset(struct pci_dev *dev, int probe)
if (probe)
return 0;

- return pci_reset_bridge_secondary_bus(dev->bus->self);
+ return pci_bridge_secondary_bus_reset(dev->bus->self);
}

static int pci_reset_hotplug_slot(struct hotplug_slot *hotplug, int probe)
@@ -4860,7 +4859,7 @@ static int pci_bus_reset(struct pci_bus *bus, int probe)

might_sleep();

- ret = pci_reset_bridge_secondary_bus(bus->self);
+ ret = pci_bridge_secondary_bus_reset(bus->self);

pci_bus_unlock(bus);

@@ -4924,7 +4923,7 @@ int pci_try_reset_bus(struct pci_bus *bus)

if (pci_bus_trylock(bus)) {
might_sleep();
- rc = pci_reset_bridge_secondary_bus(bus->self);
+ rc = pci_bridge_secondary_bus_reset(bus->self);
pci_bus_unlock(bus);
} else
rc = -EAGAIN;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index c358e7a0..f784263 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -33,6 +33,7 @@ int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vmai,
enum pci_mmap_api mmap_api);

int pci_probe_reset_function(struct pci_dev *dev);
+int pci_bridge_secondary_bus_reset(struct pci_dev *dev);

/**
* struct pci_platform_pm_ops - Firmware PM callbacks
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index f1d0f3e..74ea6ec 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -1314,7 +1314,7 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev)
reg32 &= ~ROOT_PORT_INTR_ON_MESG_MASK;
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, reg32);

- rc = pci_reset_bridge_secondary_bus(dev);
+ rc = pci_bridge_secondary_bus_reset(dev);
pci_printk(KERN_DEBUG, dev, "Root Port link has been reset\n");

/* Clear Root Error Status */
diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c
index 3a62a2e..a3a26f1 100644
--- a/drivers/pci/pcie/err.c
+++ b/drivers/pci/pcie/err.c
@@ -177,7 +177,7 @@ static pci_ers_result_t default_reset_link(struct pci_dev *dev)
{
int rc;

- rc = pci_reset_bridge_secondary_bus(dev);
+ rc = pci_bridge_secondary_bus_reset(dev);
pci_printk(KERN_DEBUG, dev, "downstream link has been reset\n");
return !rc ? PCI_ERS_RESULT_RECOVERED : PCI_ERS_RESULT_DISCONNECT;
}
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 340029b..6b12ce2 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1102,7 +1102,6 @@ int pci_reset_bus(struct pci_bus *bus);
int pci_try_reset_bus(struct pci_bus *bus);
void pci_reset_secondary_bus(struct pci_dev *dev);
void pcibios_reset_secondary_bus(struct pci_dev *dev);
-int pci_reset_bridge_secondary_bus(struct pci_dev *dev);
void pci_update_resource(struct pci_dev *dev, int resno);
int __must_check pci_assign_resource(struct pci_dev *dev, int i);
int __must_check pci_reassign_resource(struct pci_dev *dev, int i, resource_size_t add_size, resource_size_t align);
--
2.7.4