From bc9775d8697f57b333b6b316fb5145d6ca9dc36d Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 21 Jul 2016 20:03:19 -0700 Subject: [PATCH] libnvdimm: move ->module to struct nvdimm_bus_descriptor Let the provider module be explicitly passed in rather than implicitly assumed by the module that calls nvdimm_bus_register(). This is in preparation for unifying the nfit and nfit_test driver teardown paths. Reviewed-by: Lee, Chun-Yi Signed-off-by: Dan Williams --- drivers/acpi/nfit.c | 1 + drivers/nvdimm/bus.c | 2 +- drivers/nvdimm/core.c | 7 +++---- drivers/nvdimm/e820.c | 1 + drivers/nvdimm/nd-core.h | 1 - include/linux/libnvdimm.h | 7 +++---- tools/testing/nvdimm/test/nfit.c | 1 + 7 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c index fb80f32db525..e7eb3b6f1514 100644 --- a/drivers/acpi/nfit.c +++ b/drivers/acpi/nfit.c @@ -2417,6 +2417,7 @@ void acpi_nfit_desc_init(struct acpi_nfit_desc *acpi_desc, struct device *dev) acpi_desc->blk_do_io = acpi_nfit_blk_region_do_io; nd_desc = &acpi_desc->nd_desc; nd_desc->provider_name = "ACPI.NFIT"; + nd_desc->module = THIS_MODULE; nd_desc->ndctl = acpi_nfit_ctl; nd_desc->flush_probe = acpi_nfit_flush_probe; nd_desc->clear_to_send = acpi_nfit_clear_to_send; diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index 1cc7880320fe..275dd5c0a301 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -73,7 +73,7 @@ static struct module *to_bus_provider(struct device *dev) if (is_nd_pmem(dev) || is_nd_blk(dev)) { struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev); - return nvdimm_bus->module; + return nvdimm_bus->nd_desc->module; } return NULL; } diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c index 757e0cf028bf..e8528756f54f 100644 --- a/drivers/nvdimm/core.c +++ b/drivers/nvdimm/core.c @@ -447,8 +447,8 @@ struct attribute_group nvdimm_bus_attribute_group = { }; EXPORT_SYMBOL_GPL(nvdimm_bus_attribute_group); -struct nvdimm_bus *__nvdimm_bus_register(struct device *parent, - struct nvdimm_bus_descriptor *nd_desc, struct module *module) +struct nvdimm_bus *nvdimm_bus_register(struct device *parent, + struct nvdimm_bus_descriptor *nd_desc) { struct nvdimm_bus *nvdimm_bus; int rc; @@ -467,7 +467,6 @@ struct nvdimm_bus *__nvdimm_bus_register(struct device *parent, return NULL; } nvdimm_bus->nd_desc = nd_desc; - nvdimm_bus->module = module; nvdimm_bus->dev.parent = parent; nvdimm_bus->dev.release = nvdimm_bus_release; nvdimm_bus->dev.groups = nd_desc->attr_groups; @@ -491,7 +490,7 @@ struct nvdimm_bus *__nvdimm_bus_register(struct device *parent, put_device(&nvdimm_bus->dev); return NULL; } -EXPORT_SYMBOL_GPL(__nvdimm_bus_register); +EXPORT_SYMBOL_GPL(nvdimm_bus_register); static void set_badblock(struct badblocks *bb, sector_t s, int num) { diff --git a/drivers/nvdimm/e820.c b/drivers/nvdimm/e820.c index 95825b38559a..11ea90120542 100644 --- a/drivers/nvdimm/e820.c +++ b/drivers/nvdimm/e820.c @@ -47,6 +47,7 @@ static int e820_pmem_probe(struct platform_device *pdev) nd_desc.attr_groups = e820_pmem_attribute_groups; nd_desc.provider_name = "e820"; + nd_desc.module = THIS_MODULE; nvdimm_bus = nvdimm_bus_register(dev, &nd_desc); if (!nvdimm_bus) goto err; diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h index 6e961f7f43e7..38ce6bbbc170 100644 --- a/drivers/nvdimm/nd-core.h +++ b/drivers/nvdimm/nd-core.h @@ -26,7 +26,6 @@ extern int nvdimm_major; struct nvdimm_bus { struct nvdimm_bus_descriptor *nd_desc; wait_queue_head_t probe_wait; - struct module *module; struct list_head list; struct device dev; int id, probe_active; diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h index d37fda6dd64c..2ab869dece4a 100644 --- a/include/linux/libnvdimm.h +++ b/include/linux/libnvdimm.h @@ -70,6 +70,7 @@ struct nd_mapping { struct nvdimm_bus_descriptor { const struct attribute_group **attr_groups; unsigned long cmd_mask; + struct module *module; char *provider_name; ndctl_fn ndctl; int (*flush_probe)(struct nvdimm_bus_descriptor *nd_desc); @@ -128,10 +129,8 @@ static inline struct nd_blk_region_desc *to_blk_region_desc( } int nvdimm_bus_add_poison(struct nvdimm_bus *nvdimm_bus, u64 addr, u64 length); -struct nvdimm_bus *__nvdimm_bus_register(struct device *parent, - struct nvdimm_bus_descriptor *nfit_desc, struct module *module); -#define nvdimm_bus_register(parent, desc) \ - __nvdimm_bus_register(parent, desc, THIS_MODULE) +struct nvdimm_bus *nvdimm_bus_register(struct device *parent, + struct nvdimm_bus_descriptor *nfit_desc); void nvdimm_bus_unregister(struct nvdimm_bus *nvdimm_bus); struct nvdimm_bus *to_nvdimm_bus(struct device *dev); struct nvdimm *to_nvdimm(struct device *dev); diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index 78cba1e3b1da..642713f15723 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -1463,6 +1463,7 @@ static int nfit_test_probe(struct platform_device *pdev) acpi_desc->blk_do_io = nfit_test_blk_do_io; nd_desc = &acpi_desc->nd_desc; nd_desc->provider_name = NULL; + nd_desc->module = THIS_MODULE; nd_desc->ndctl = nfit_test_ctl; acpi_desc->nvdimm_bus = nvdimm_bus_register(&pdev->dev, nd_desc); if (!acpi_desc->nvdimm_bus) -- GitLab