On Tue, Apr 04, 2017 at 10:23:02AM +0200, Michal Hocko wrote:
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 5548f9686016..ee080a35e869 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -368,8 +368,6 @@ int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
}
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
-#define page_initialized(page) (page->lru.next)
-
static int __ref get_nid_for_pfn(unsigned long pfn)
{
struct page *page;
@@ -380,9 +378,6 @@ static int __ref get_nid_for_pfn(unsigned long pfn)
if (system_state == SYSTEM_BOOTING)
return early_pfn_to_nid(pfn);
#endif
- page = pfn_to_page(pfn);
- if (!page_initialized(page))
- return -1;
return pfn_to_nid(pfn);
}
You can get rid of 'page' altogether.
drivers/base/node.c: In function ‘get_nid_for_pfn’:
drivers/base/node.c:373:15: warning: unused variable ‘page’ [-Wunused-variable]
--
Reza Arbab
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