6.11 updates for libnvdimm

One small cleanup to use sizeof(*pointer)
 
 A series of patches to add MODULE_DESCRIPTIONS() to eliminate make W=1
 warnings.
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Merge tag 'libnvdimm-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm updates from Ira Weiny:

 - One small cleanup to use sizeof(*pointer)

 - Add MODULE_DESCRIPTIONS() to eliminate make W=1 warnings

* tag 'libnvdimm-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  testing: nvdimm: Add MODULE_DESCRIPTION() macros
  testing: nvdimm: iomap: add MODULE_DESCRIPTION()
  dax: add missing MODULE_DESCRIPTION() macros
  nvdimm: add missing MODULE_DESCRIPTION() macros
  ACPI: NFIT: add missing MODULE_DESCRIPTION() macro
  nvdimm/btt: use sizeof(*pointer) instead of sizeof(type)

drivers/acpi/nfit/core.c

@@ -3531,5 +3531,6 @@ static __exit void nfit_exit(void)
 
 module_init(nfit_init);
 module_exit(nfit_exit);
+MODULE_DESCRIPTION("ACPI NVDIMM Firmware Interface Table (NFIT) driver");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Intel Corporation");

drivers/dax/cxl.c

@@ -43,6 +43,7 @@ static struct cxl_driver cxl_dax_region_driver = {
 
 module_cxl_driver(cxl_dax_region_driver);
 MODULE_ALIAS_CXL(CXL_DEVICE_DAX_REGION);
+MODULE_DESCRIPTION("CXL DAX: direct access to CXL regions");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Intel Corporation");
 MODULE_IMPORT_NS(CXL);

drivers/dax/device.c

@@ -482,6 +482,7 @@ static void __exit dax_exit(void)
 }
 
 MODULE_AUTHOR("Intel Corporation");
+MODULE_DESCRIPTION("Device DAX: direct access device driver");
 MODULE_LICENSE("GPL v2");
 module_init(dax_init);
 module_exit(dax_exit);

drivers/dax/hmem/hmem.c

@@ -168,5 +168,6 @@ MODULE_SOFTDEP("pre: cxl_acpi");
 
 MODULE_ALIAS("platform:hmem*");
 MODULE_ALIAS("platform:hmem_platform*");
+MODULE_DESCRIPTION("HMEM DAX: direct access to 'specific purpose' memory");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Intel Corporation");

drivers/dax/kmem.c

@@ -299,6 +299,7 @@ static void __exit dax_kmem_exit(void)
 }
 
 MODULE_AUTHOR("Intel Corporation");
+MODULE_DESCRIPTION("KMEM DAX: map dax-devices as System-RAM");
 MODULE_LICENSE("GPL v2");
 module_init(dax_kmem_init);
 module_exit(dax_kmem_exit);

drivers/dax/pmem.c

@@ -94,6 +94,7 @@ static void __exit dax_pmem_exit(void)
 }
 module_exit(dax_pmem_exit);
 
+MODULE_DESCRIPTION("PMEM DAX: direct access to persistent memory");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Intel Corporation");
 MODULE_ALIAS_ND_DEVICE(ND_DEVICE_DAX_PMEM);

drivers/dax/super.c

@@ -606,6 +606,7 @@ static void __exit dax_core_exit(void)
 }
 
 MODULE_AUTHOR("Intel Corporation");
+MODULE_DESCRIPTION("DAX: direct access to differentiated memory");
 MODULE_LICENSE("GPL v2");
 subsys_initcall(dax_core_init);
 module_exit(dax_core_exit);

drivers/nvdimm/btt.c

@@ -751,7 +751,7 @@ static struct arena_info *alloc_arena(struct btt *btt, size_t size,
 	u64 logsize, mapsize, datasize;
 	u64 available = size;
 
-	arena = kzalloc(sizeof(struct arena_info), GFP_KERNEL);
+	arena = kzalloc(sizeof(*arena), GFP_KERNEL);
 	if (!arena)
 		return NULL;
 	arena->nd_btt = btt->nd_btt;
@@ -978,7 +978,7 @@ static int btt_arena_write_layout(struct arena_info *arena)
 	if (ret)
 		return ret;
 
-	super = kzalloc(sizeof(struct btt_sb), GFP_NOIO);
+	super = kzalloc(sizeof(*super), GFP_NOIO);
 	if (!super)
 		return -ENOMEM;
 
@@ -1716,6 +1716,7 @@ static void __exit nd_btt_exit(void)
 
 MODULE_ALIAS_ND_DEVICE(ND_DEVICE_BTT);
 MODULE_AUTHOR("Vishal Verma <vishal.l.verma@linux.intel.com>");
+MODULE_DESCRIPTION("NVDIMM Block Translation Table");
 MODULE_LICENSE("GPL v2");
 module_init(nd_btt_init);
 module_exit(nd_btt_exit);

drivers/nvdimm/core.c

@@ -540,6 +540,7 @@ static __exit void libnvdimm_exit(void)
 	nvdimm_devs_exit();
 }
 
+MODULE_DESCRIPTION("NVDIMM (Non-Volatile Memory Device) core");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Intel Corporation");
 subsys_initcall(libnvdimm_init);

drivers/nvdimm/e820.c

@@ -69,5 +69,6 @@ static struct platform_driver e820_pmem_driver = {
 module_platform_driver(e820_pmem_driver);
 
 MODULE_ALIAS("platform:e820_pmem*");
+MODULE_DESCRIPTION("NVDIMM support for e820 type-12 memory");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Intel Corporation");

drivers/nvdimm/nd_virtio.c

@@ -123,4 +123,5 @@ int async_pmem_flush(struct nd_region *nd_region, struct bio *bio)
 	return 0;
 };
 EXPORT_SYMBOL_GPL(async_pmem_flush);
+MODULE_DESCRIPTION("Virtio Persistent Memory Driver");
 MODULE_LICENSE("GPL");

drivers/nvdimm/of_pmem.c

@@ -111,5 +111,6 @@ static struct platform_driver of_pmem_region_driver = {
 
 module_platform_driver(of_pmem_region_driver);
 MODULE_DEVICE_TABLE(of, of_pmem_region_match);
+MODULE_DESCRIPTION("NVDIMM Device Tree support");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("IBM Corporation");

drivers/nvdimm/pmem.c

@@ -766,4 +766,5 @@ static struct nd_device_driver nd_pmem_driver = {
 module_nd_driver(nd_pmem_driver);
 
 MODULE_AUTHOR("Ross Zwisler <ross.zwisler@linux.intel.com>");
+MODULE_DESCRIPTION("NVDIMM Persistent Memory Driver");
 MODULE_LICENSE("GPL v2");

tools/testing/nvdimm/test/iomap.c

@@ -407,4 +407,5 @@ union acpi_object * __wrap_acpi_evaluate_dsm(acpi_handle handle, const guid_t *g
 }
 EXPORT_SYMBOL(__wrap_acpi_evaluate_dsm);
 
+MODULE_DESCRIPTION("NVDIMM unit test");
 MODULE_LICENSE("GPL v2");

tools/testing/nvdimm/test/ndtest.c

@@ -987,5 +987,6 @@ static __exit void ndtest_exit(void)
 
 module_init(ndtest_init);
 module_exit(ndtest_exit);
+MODULE_DESCRIPTION("Test non-NFIT devices");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("IBM Corporation");

tools/testing/nvdimm/test/nfit.c

@@ -3382,5 +3382,6 @@ static __exit void nfit_test_exit(void)
 
 module_init(nfit_test_init);
 module_exit(nfit_test_exit);
+MODULE_DESCRIPTION("Test ACPI NFIT devices");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Intel Corporation");