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cdx: Create symbol namespaces for cdx subsystem

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Create CDX_BUS and CDX_BUS_CONTROLLER symbol namespace for cdx bus
subsystem. CDX controller modules are required to import symbols from
CDX_BUS_CONTROLLER namespace and other than controller modules to
import from CDX_BUS namespace.

Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Link: https://lore.kernel.org/r/20231017160505.10640-4-abhijit.gangurde@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Abhijit Gangurde 2023-10-17 21:35:01 +05:30 committed by Greg Kroah-Hartman
parent f0af816834
commit e3ed12f37e
4 changed files with 7 additions and 3 deletions
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2
drivers/cdx/Makefile
View file

@ -5,4 +5,6 @@
# Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
#
ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=CDX_BUS
obj-$(CONFIG_CDX_BUS) += cdx.o controller/

6
drivers/cdx/cdx.c
View file

@ -530,7 +530,7 @@ int cdx_device_add(struct cdx_dev_params *dev_params)
return ret;
}
EXPORT_SYMBOL_GPL(cdx_device_add);
EXPORT_SYMBOL_NS_GPL(cdx_device_add, CDX_BUS_CONTROLLER);
int cdx_register_controller(struct cdx_controller *cdx)
{
@ -555,7 +555,7 @@ int cdx_register_controller(struct cdx_controller *cdx)
return 0;
}
EXPORT_SYMBOL_GPL(cdx_register_controller);
EXPORT_SYMBOL_NS_GPL(cdx_register_controller, CDX_BUS_CONTROLLER);
void cdx_unregister_controller(struct cdx_controller *cdx)
{
@ -570,7 +570,7 @@ void cdx_unregister_controller(struct cdx_controller *cdx)
mutex_unlock(&cdx_controller_lock);
}
EXPORT_SYMBOL_GPL(cdx_unregister_controller);
EXPORT_SYMBOL_NS_GPL(cdx_unregister_controller, CDX_BUS_CONTROLLER);
static int __init cdx_bus_init(void)
{

1
drivers/cdx/controller/cdx_controller.c
View file

@ -229,3 +229,4 @@ module_exit(cdx_controller_exit);
MODULE_AUTHOR("AMD Inc.");
MODULE_DESCRIPTION("CDX controller for AMD devices");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS(CDX_BUS_CONTROLLER);

1
drivers/vfio/cdx/main.c
View file

@ -231,3 +231,4 @@ module_driver(vfio_cdx_driver, cdx_driver_register, cdx_driver_unregister);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("VFIO for CDX devices - User Level meta-driver");
MODULE_IMPORT_NS(CDX_BUS);