diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/devtmpfs.c | 4 | ||||
| -rw-r--r-- | drivers/base/memory.c | 9 | ||||
| -rw-r--r-- | drivers/base/power/domain.c | 38 |
3 files changed, 44 insertions, 7 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index 5995c437cbdf..c9017e0584c0 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -67,10 +67,10 @@ static struct file_system_type internal_fs_type = { .name = "devtmpfs", #ifdef CONFIG_TMPFS .init_fs_context = shmem_init_fs_context, - .parameters = &shmem_fs_parameters, + .parameters = shmem_fs_parameters, #else .init_fs_context = ramfs_init_fs_context, - .parameters = &ramfs_fs_parameters, + .parameters = ramfs_fs_parameters, #endif .kill_sb = kill_litter_super, }; diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 15659306ad69..b9f474c11393 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -376,7 +376,6 @@ static ssize_t valid_zones_show(struct device *dev, struct memory_block *mem = to_memory_block(dev); unsigned long start_pfn = section_nr_to_pfn(mem->start_section_nr); unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block; - unsigned long valid_start_pfn, valid_end_pfn; struct zone *default_zone; int nid; @@ -389,11 +388,11 @@ static ssize_t valid_zones_show(struct device *dev, * The block contains more than one zone can not be offlined. * This can happen e.g. for ZONE_DMA and ZONE_DMA32 */ - if (!test_pages_in_a_zone(start_pfn, start_pfn + nr_pages, - &valid_start_pfn, &valid_end_pfn)) + default_zone = test_pages_in_a_zone(start_pfn, + start_pfn + nr_pages); + if (!default_zone) return sprintf(buf, "none\n"); - start_pfn = valid_start_pfn; - strcat(buf, page_zone(pfn_to_page(start_pfn))->name); + strcat(buf, default_zone->name); goto out; } diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 8e5725b11ee8..959d6d5eb000 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2303,6 +2303,44 @@ out: EXPORT_SYMBOL_GPL(of_genpd_add_subdomain); /** + * of_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain. + * @parent_spec: OF phandle args to use for parent PM domain look-up + * @subdomain_spec: OF phandle args to use for subdomain look-up + * + * Looks-up a parent PM domain and subdomain based upon phandle args + * provided and removes the subdomain from the parent PM domain. Returns a + * negative error code on failure. + */ +int of_genpd_remove_subdomain(struct of_phandle_args *parent_spec, + struct of_phandle_args *subdomain_spec) +{ + struct generic_pm_domain *parent, *subdomain; + int ret; + + mutex_lock(&gpd_list_lock); + + parent = genpd_get_from_provider(parent_spec); + if (IS_ERR(parent)) { + ret = PTR_ERR(parent); + goto out; + } + + subdomain = genpd_get_from_provider(subdomain_spec); + if (IS_ERR(subdomain)) { + ret = PTR_ERR(subdomain); + goto out; + } + + ret = pm_genpd_remove_subdomain(parent, subdomain); + +out: + mutex_unlock(&gpd_list_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(of_genpd_remove_subdomain); + +/** * of_genpd_remove_last - Remove the last PM domain registered for a provider * @provider: Pointer to device structure associated with provider * |