[PATCH v3] perf: add missing MODULE_DESCRIPTION() macros

[Jeff Johnson]

With ARCH=x86, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/perf/arm-ccn.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/perf/fsl_imx8_ddr_perf.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/perf/marvell_cn10k_ddr_pmu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/perf/arm_cspmu/arm_cspmu_module.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/perf/arm_cspmu/nvidia_cspmu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/perf/arm_cspmu/ampere_cspmu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/perf/cxl_pmu.o

Add the missing invocation of the MODULE_DESCRIPTION() macro to all
files which have a MODULE_LICENSE().

This includes drivers/perf/hisilicon/hisi_uncore_pmu.c which, although
it did not produce a warning with the x86 allmodconfig configuration,
may cause this warning with arm64 configurations.

Signed-off-by: Jeff Johnson <quic_jjohnson at quicinc.com>
---
Changes in v3:
- Consistently use "Performance Monitor" in the descriptions
- Did not carry forward Yicong Yang's Reviewed-by since I tweaked the
  description that was reviewed
- Link to v2: https://lore.kernel.org/r/20240620-md-drivers-perf-v2-1-1f88f8a08e48@quicinc.com

Changes in v2:
- Updated hisi_uncore_pmu.c description per Yicong Yang
- Link to v1: https://lore.kernel.org/r/20240611-md-drivers-perf-v1-1-c001bae6da5c@quicinc.com
---
 drivers/perf/arm-ccn.c                   | 1 +
 drivers/perf/arm_cspmu/ampere_cspmu.c    | 1 +
 drivers/perf/arm_cspmu/arm_cspmu.c       | 1 +
 drivers/perf/arm_cspmu/nvidia_cspmu.c    | 1 +
 drivers/perf/cxl_pmu.c                   | 1 +
 drivers/perf/fsl_imx8_ddr_perf.c         | 1 +
 drivers/perf/hisilicon/hisi_uncore_pmu.c | 1 +
 drivers/perf/marvell_cn10k_ddr_pmu.c     | 1 +
 8 files changed, 8 insertions(+)

diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c
index 86ef31ac7503..5c66b9278862 100644
--- a/drivers/perf/arm-ccn.c
+++ b/drivers/perf/arm-ccn.c
@@ -1561,4 +1561,5 @@ module_init(arm_ccn_init);
 module_exit(arm_ccn_exit);
 
 MODULE_AUTHOR("Pawel Moll <pawel.moll at arm.com>");
+MODULE_DESCRIPTION("ARM CCN (Cache Coherent Network) Performance Monitor Driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/perf/arm_cspmu/ampere_cspmu.c b/drivers/perf/arm_cspmu/ampere_cspmu.c
index f146a455e838..f72f5689923c 100644
--- a/drivers/perf/arm_cspmu/ampere_cspmu.c
+++ b/drivers/perf/arm_cspmu/ampere_cspmu.c
@@ -269,4 +269,5 @@ static void __exit ampere_cspmu_exit(void)
 module_init(ampere_cspmu_init);
 module_exit(ampere_cspmu_exit);
 
+MODULE_DESCRIPTION("Ampere SoC Performance Monitor Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/perf/arm_cspmu/arm_cspmu.c b/drivers/perf/arm_cspmu/arm_cspmu.c
index c318dc909767..2158a5975c90 100644
--- a/drivers/perf/arm_cspmu/arm_cspmu.c
+++ b/drivers/perf/arm_cspmu/arm_cspmu.c
@@ -1427,4 +1427,5 @@ EXPORT_SYMBOL_GPL(arm_cspmu_impl_unregister);
 module_init(arm_cspmu_init);
 module_exit(arm_cspmu_exit);
 
+MODULE_DESCRIPTION("ARM CoreSight Architecture Performance Monitor Driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/perf/arm_cspmu/nvidia_cspmu.c b/drivers/perf/arm_cspmu/nvidia_cspmu.c
index 5b84b701ad62..d0ef611240aa 100644
--- a/drivers/perf/arm_cspmu/nvidia_cspmu.c
+++ b/drivers/perf/arm_cspmu/nvidia_cspmu.c
@@ -417,4 +417,5 @@ static void __exit nvidia_cspmu_exit(void)
 module_init(nvidia_cspmu_init);
 module_exit(nvidia_cspmu_exit);
 
+MODULE_DESCRIPTION("NVIDIA Coresight Architecture Performance Monitor Driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/perf/cxl_pmu.c b/drivers/perf/cxl_pmu.c
index 1f93a66eff5b..43d68b69e630 100644
--- a/drivers/perf/cxl_pmu.c
+++ b/drivers/perf/cxl_pmu.c
@@ -972,6 +972,7 @@ static __exit void cxl_pmu_exit(void)
 	cpuhp_remove_multi_state(cxl_pmu_cpuhp_state_num);
 }
 
+MODULE_DESCRIPTION("CXL Performance Monitor Driver");
 MODULE_LICENSE("GPL");
 MODULE_IMPORT_NS(CXL);
 module_init(cxl_pmu_init);
diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 1bbdb29743c4..746b92330ca7 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -850,4 +850,5 @@ static struct platform_driver imx_ddr_pmu_driver = {
 };
 
 module_platform_driver(imx_ddr_pmu_driver);
+MODULE_DESCRIPTION("Freescale i.MX8 DDR Performance Monitor Driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c
index 6392cbedcd06..918cdc31de57 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c
@@ -537,4 +537,5 @@ void hisi_pmu_init(struct hisi_pmu *hisi_pmu, struct module *module)
 }
 EXPORT_SYMBOL_GPL(hisi_pmu_init);
 
+MODULE_DESCRIPTION("HiSilicon SoC uncore Performance Monitor driver framework");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/perf/marvell_cn10k_ddr_pmu.c b/drivers/perf/marvell_cn10k_ddr_pmu.c
index e2abca188dbe..94f1ebcd2a27 100644
--- a/drivers/perf/marvell_cn10k_ddr_pmu.c
+++ b/drivers/perf/marvell_cn10k_ddr_pmu.c
@@ -763,4 +763,5 @@ module_init(cn10k_ddr_pmu_init);
 module_exit(cn10k_ddr_pmu_exit);
 
 MODULE_AUTHOR("Bharat Bhushan <bbhushan2 at marvell.com>");
+MODULE_DESCRIPTION("Marvell CN10K DRAM Subsystem (DSS) Performance Monitor Driver");
 MODULE_LICENSE("GPL v2");

---
base-commit: 34afb82a3c67f869267a26f593b6f8fc6bf35905
change-id: 20240611-md-drivers-perf-5d834208964d