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Subject[PATCH 1/2] mm/mmap.c: Remove redundant variable 'addr' in arch_get_unmapped_area_topdown()
The variable 'addr' is redundant in arch_get_unmapped_area_topdown(), 
just use parameter 'addr0' directly. Then remove the const qualifier
of the parameter, and change its name to 'addr'.

Signed-off-by: Yang Fan <>
mm/mmap.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index f901065c4c64..f2d163ac827a 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2126,13 +2126,12 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
const unsigned long len, const unsigned long pgoff,
const unsigned long flags)
struct vm_area_struct *vma, *prev;
struct mm_struct *mm = current->mm;
- unsigned long addr = addr0;
struct vm_unmapped_area_info info;
const unsigned long mmap_end = arch_get_mmap_end(addr);

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