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.
Cc: Greg Kroah-Hartman <[email protected]>
Suggested-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Ricardo B. Marliere <[email protected]>
---
drivers/pci/pci-driver.c | 2 +-
drivers/pci/pcie/portdrv.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index ec838f2e892e..a29098e24683 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1705,7 +1705,7 @@ 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;
---
base-commit: cc24b2d080dca2ce1c89a8a71c00bdf21155f357
change-id: 20240208-bus_cleanup-pci2-61fe9c495d08
Best regards,
--
Ricardo B. Marliere <[email protected]>
On 2/8/24 11:41 AM, Ricardo B. Marliere wrote:
> 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.
>
> Cc: Greg Kroah-Hartman <[email protected]>
> Suggested-by: Greg Kroah-Hartman <[email protected]>
> Signed-off-by: Ricardo B. Marliere <[email protected]>
> ---
Looks fine to me.
Reviewed-by: Kuppuswamy Sathyanarayanan <[email protected]>
> drivers/pci/pci-driver.c | 2 +-
> drivers/pci/pcie/portdrv.h | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
> index ec838f2e892e..a29098e24683 100644
> --- a/drivers/pci/pci-driver.c
> +++ b/drivers/pci/pci-driver.c
> @@ -1705,7 +1705,7 @@ 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;
>
>
> ---
> base-commit: cc24b2d080dca2ce1c89a8a71c00bdf21155f357
> change-id: 20240208-bus_cleanup-pci2-61fe9c495d08
>
> Best regards,
--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer