Operators should be separated by spaces.

Signed-off-by: Deming Wang <wangdeming@inspur.com>
---
 mm/gup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/gup.c b/mm/gup.c
index 0fa09ac3cf2f..2fd09f0820a4 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -2522,7 +2522,7 @@ static int record_subpages(struct page *page, unsigned long addr,
 static unsigned long hugepte_addr_end(unsigned long addr, unsigned long end,
 				      unsigned long sz)
 {
-	unsigned long __boundary = (addr + sz) & ~(sz-1);
+	unsigned long __boundary = (addr + sz) & ~(sz - 1);
 	return (__boundary - 1 < end - 1) ? __boundary : end;
 }
 
@@ -2536,7 +2536,7 @@ static int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
 	pte_t pte;
 	int refs;
 
-	pte_end = (addr + sz) & ~(sz-1);
+	pte_end = (addr + sz) & ~(sz - 1);
 	if (pte_end < end)
 		end = pte_end;
 
-- 
2.27.0