From 6ae32c539c0412ca789fb6041be45eeabf78431c Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 4 Jun 2013 19:18:14 +0200
Subject: [PATCH] PCI: Add pcibios_release_device()
Platforms may want to provide architecture-specific functionality when
a PCI device is released. Add a pcibios_release_device() call that
architectures can override to do so.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/pci.c | 10 ++++++++++
drivers/pci/probe.c | 1 +
include/linux/pci.h | 1 +
3 files changed, 12 insertions(+)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e5f4e55d407d4..709791b70ca05 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1334,6 +1334,16 @@ int __weak pcibios_add_device (struct pci_dev *dev)
return 0;
}
+/**
+ * pcibios_release_device - provide arch specific hooks when releasing device dev
+ * @dev: the PCI device being released
+ *
+ * Permits the platform to provide architecture specific functionality when
+ * devices are released. This is the default implementation. Architecture
+ * implementations can override this.
+ */
+void __weak pcibios_release_device(struct pci_dev *dev) {}
+
/**
* pcibios_disable_device - disable arch specific PCI resources for device dev
* @dev: the PCI device to disable
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 70f10fa3c1b21..58cc0a8a09794 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1132,6 +1132,7 @@ static void pci_release_dev(struct device *dev)
pci_dev = to_pci_dev(dev);
pci_release_capabilities(pci_dev);
pci_release_of_node(pci_dev);
+ pcibios_release_device(pci_dev);
kfree(pci_dev);
}
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 3a24e4ff32481..8f170e9073a5f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1643,6 +1643,7 @@ void pcibios_set_master(struct pci_dev *dev);
int pcibios_set_pcie_reset_state(struct pci_dev *dev,
enum pcie_reset_state state);
int pcibios_add_device(struct pci_dev *dev);
+void pcibios_release_device(struct pci_dev *dev);
#ifdef CONFIG_PCI_MMCONFIG
void __init pci_mmcfg_early_init(void);
--
GitLab