cxl: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cxl/core/cxl_core.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cxl/cxl_pci.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cxl/cxl_mem.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cxl/cxl_acpi.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cxl/cxl_pmem.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cxl/cxl_port.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://patch.msgid.link/20240607-md-drivers-cxl-v2-1-0c61d95ee7a7@quicinc.comSigned-off-by: Dave Jiang <dave.jiang@intel.com>

drivers/cxl/acpi.c

@@ -921,6 +921,7 @@ static void __exit cxl_acpi_exit(void)
 /* load before dax_hmem sees 'Soft Reserved' CXL ranges */
 subsys_initcall(cxl_acpi_init);
 module_exit(cxl_acpi_exit);
+MODULE_DESCRIPTION("CXL ACPI: Platform Support");
 MODULE_LICENSE("GPL v2");
 MODULE_IMPORT_NS(CXL);
 MODULE_IMPORT_NS(ACPI);

drivers/cxl/core/port.c

@@ -2356,5 +2356,6 @@ static void cxl_core_exit(void)
 
 subsys_initcall(cxl_core_init);
 module_exit(cxl_core_exit);
+MODULE_DESCRIPTION("CXL: Core Compute Express Link support");
 MODULE_LICENSE("GPL v2");
 MODULE_IMPORT_NS(CXL);

drivers/cxl/mem.c

@@ -252,6 +252,7 @@ static struct cxl_driver cxl_mem_driver = {
 
 module_cxl_driver(cxl_mem_driver);
 
+MODULE_DESCRIPTION("CXL: Memory Expansion");
 MODULE_LICENSE("GPL v2");
 MODULE_IMPORT_NS(CXL);
 MODULE_ALIAS_CXL(CXL_DEVICE_MEMORY_EXPANDER);

drivers/cxl/pci.c

@@ -1066,5 +1066,6 @@ static void __exit cxl_pci_driver_exit(void)
 
 module_init(cxl_pci_driver_init);
 module_exit(cxl_pci_driver_exit);
+MODULE_DESCRIPTION("CXL: PCI manageability");
 MODULE_LICENSE("GPL v2");
 MODULE_IMPORT_NS(CXL);

drivers/cxl/pmem.c

@@ -453,6 +453,7 @@ static __exit void cxl_pmem_exit(void)
 	cxl_driver_unregister(&cxl_nvdimm_bridge_driver);
 }
 
+MODULE_DESCRIPTION("CXL PMEM: Persistent Memory Support");
 MODULE_LICENSE("GPL v2");
 module_init(cxl_pmem_init);
 module_exit(cxl_pmem_exit);

drivers/cxl/port.c

@@ -209,6 +209,7 @@ static struct cxl_driver cxl_port_driver = {
 };
 
 module_cxl_driver(cxl_port_driver);
+MODULE_DESCRIPTION("CXL: Port enumeration and services");
 MODULE_LICENSE("GPL v2");
 MODULE_IMPORT_NS(CXL);
 MODULE_ALIAS_CXL(CXL_DEVICE_PORT);