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authorRicardo B. Marliere <ricardo@marliere.net>2024-02-08 16:41:46 -0300
committerBjorn Helgaas <bhelgaas@google.com>2024-02-08 14:59:47 -0600
commit7adf6ac8521e2102d1d0f970c532e1bb91e1d096 (patch)
tree359ae71f79bf0b50f2dc1fc08a89453c5aab3fb6
parent6613476e225e090cc9aad49be7fa504e290dd33d (diff)
PCI: Make pcie_port_bus_type const
Now that the driver core can properly handle constant struct bus_type, move the pcie_port_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Link: https://lore.kernel.org/r/20240208-bus_cleanup-pci2-v1-1-5e578210b6f2@marliere.net Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
-rw-r--r--drivers/pci/pci-driver.c2
-rw-r--r--drivers/pci/pcie/portdrv.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 51ec9e7e784f..37cfec341fce 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1714,7 +1714,7 @@ static int pcie_port_bus_match(struct device *dev, struct device_driver *drv)
return 1;
}
-struct bus_type pcie_port_bus_type = {
+const struct bus_type pcie_port_bus_type = {
.name = "pci_express",
.match = pcie_port_bus_match,
};
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 1f3803bde7ee..12c89ea0313b 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -96,7 +96,7 @@ struct pcie_port_service_driver {
int pcie_port_service_register(struct pcie_port_service_driver *new);
void pcie_port_service_unregister(struct pcie_port_service_driver *new);
-extern struct bus_type pcie_port_bus_type;
+extern const struct bus_type pcie_port_bus_type;
struct pci_dev;