linux/drivers/nvdimm
Kajol Jain de7a9e949f drivers/nvdimm: Fix build failure when CONFIG_PERF_EVENTS is not set
The following build failure occurs when CONFIG_PERF_EVENTS is not set
as generic pmu functions are not visible in that scenario.

|-- s390-randconfig-r044-20220313
|   |-- nd_perf.c:(.text):undefined-reference-to-perf_pmu_migrate_context
|   |-- nd_perf.c:(.text):undefined-reference-to-perf_pmu_register
|   `-- nd_perf.c:(.text):undefined-reference-to-perf_pmu_unregister

Similar build failure in nds32 architecture:
nd_perf.c:(.text+0x21e): undefined reference to `perf_pmu_migrate_context'
nd_perf.c:(.text+0x434): undefined reference to `perf_pmu_register'
nd_perf.c:(.text+0x57c): undefined reference to `perf_pmu_unregister'

Fix this issue by adding check for CONFIG_PERF_EVENTS config option
and disabling the nvdimm perf interface incase this config is not set.

Also remove function declaration of perf_pmu_migrate_context,
perf_pmu_register, perf_pmu_unregister functions from nd.h as these are
common pmu functions which are part of perf_event.h and since we
are disabling nvdimm perf interface incase CONFIG_PERF_EVENTS option
is not set, we not need to declare them in nd.h

Also move the platform_device header file addition part from nd.h to
nd_perf.c and add stub functions for register_nvdimm_pmu and
unregister_nvdimm_pmu functions to handle CONFIG_PERF_EVENTS=n
case.

Fixes: 0fab1ba6ad ("drivers/nvdimm: Add perf interface to expose nvdimm performance stats") (Commit id based on libnvdimm-for-next tree)
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Link: https://lore.kernel.org/all/62317124.YBQFU33+s%2FwdvWGj%25lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20220323164550.109768-1-kjain@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-03-23 12:17:36 -07:00
..
badrange.c mm/memremap_pages: convert to 'struct range' 2020-10-13 18:38:28 -07:00
btt_devs.c libnvdimm/labels: Add uuid helpers 2021-09-21 13:44:55 -07:00
btt.c for-5.16/drivers-2021-11-09 2021-11-09 11:24:08 -08:00
btt.h nvdimm-btt: convert to blk_alloc_disk/blk_cleanup_disk 2021-06-01 07:42:23 -06:00
bus.c nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
claim.c libnvdimm: Cleanup include of badblocks.h 2020-12-15 21:47:45 -08:00
core.c cxl for v5.16 2021-11-08 11:49:48 -08:00
dax_devs.c libnvdimm: Move attribute groups to device type 2019-11-17 09:17:38 -08:00
dimm_devs.c nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
dimm.c libnvdimm: Make remove callback return void 2021-02-16 19:35:29 -08:00
e820.c libnvdimm/e820: Retrieve and populate correct 'target_node' info 2020-02-18 10:28:05 -08:00
Kconfig nvdimm/blk: Delete the block-aperture window driver 2022-03-11 15:53:12 -08:00
label.c nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
label.h nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
Makefile drivers/nvdimm: Fix build failure when CONFIG_PERF_EVENTS is not set 2022-03-23 12:17:36 -07:00
namespace_devs.c nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
nd_perf.c drivers/nvdimm: Fix build failure when CONFIG_PERF_EVENTS is not set 2022-03-23 12:17:36 -07:00
nd_virtio.c virtio_pmem: fix sparse warning 2019-07-16 19:44:26 -07:00
nd-core.h nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
nd.h nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
of_pmem.c powerpc/pmem: Initialize pmem device on newer hardware 2020-07-16 13:00:23 +10:00
pfn_devs.c libnvdimm/labels: Add uuid helpers 2021-09-21 13:44:55 -07:00
pfn.h libnvdimm/namespace: Enforce memremap_compat_align() 2020-03-17 12:23:21 -07:00
pmem.c dax: remove the copy_from_iter and copy_to_iter methods 2021-12-18 08:04:53 -08:00
pmem.h libnvdimm, pmem: Restore page attributes when clearing errors 2018-08-20 09:22:45 -07:00
region_devs.c nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
region.c nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
security.c libnvdimm for 5.9 2020-08-11 10:59:19 -07:00
virtio_pmem.c virtio: wrap config->reset calls 2022-01-14 18:50:52 -05:00
virtio_pmem.h virtio-pmem: Add virtio pmem driver 2019-07-05 15:19:10 -07:00