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-rw-r--r--mm/sparse.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/sparse.c b/mm/sparse.c
index d85655242ed9..be7936e65b6a 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -117,7 +117,7 @@ static inline int sparse_index_init(unsigned long section_nr, int nid)
  */
 static inline unsigned long sparse_encode_early_nid(int nid)
 {
-	return (nid << SECTION_NID_SHIFT);
+	return ((unsigned long)nid << SECTION_NID_SHIFT);
 }
 
 static inline int sparse_early_nid(struct mem_section *section)